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{ "count": 238, "next": "https://memento.epfl.ch/api/v1/events/?format=api&limit=10&offset=90&ordering=-description", "previous": "https://memento.epfl.ch/api/v1/events/?format=api&limit=10&offset=70&ordering=-description", "results": [ { "id": 70901, "title": "Emergent dynamics of active colloids: chirality, non-reciprocity and memory", "slug": "emergent-dynamics-of-active-colloids-chirality-n-2", "event_url": "https://memento.epfl.ch/event/emergent-dynamics-of-active-colloids-chirality-n-2", "visual_url": "https://memento.epfl.ch/image/32290/200x112.jpg", "visual_large_url": "https://memento.epfl.ch/image/32290/720x405.jpg", "visual_maxsize_url": "https://memento.epfl.ch/image/32290/max-size.jpg", "lang": "en", "start_date": "2026-05-11", "end_date": "2026-05-13", "start_time": null, "end_time": null, "description": "<p>You can apply to participate and find all the relevant information (speakers, abstracts, program,...) on the event website: <a href=\"https://www.cecam.org/workshop-details/emergent-dynamics-of-active-colloids-chirality-non-reciprocity-and-memory-1496\">https://www.cecam.org/workshop-details/emergent-dynamics-of-active-colloids-chirality-non-reciprocity-and-memory-1496</a>.<br>\r\n<br>\r\nRegistration is required to attend the full event, take part in the social activities and present a poster at the poster session (if any). However, the EPFL community is welcome to attend specific lectures without registration if the topic is of interest to their research. Do not hesitate to contact the <a href=\"mailto:[email protected]\">CECAM Event Manager</a> if you have any question.<br>\r\n<br>\r\n<strong>Description</strong><br>\r\n<br>\r\nBiological systems in Nature are intrinsically out-of-equilibrium to maintain their structural complexity and functional diversity. Similarly, out-of-equilibrium dissipative colloidal systems subjected to an external energy injection often develop nontrivial collective dynamics and self-organize into large scale structures, which are far more complex than their equilibrium counterparts [1-17]. The main sources of such emergent behavior are the many-body dissipative interactions between colloids (e. g. steric, electrostatic, magnetic), the external energy injection, and the coupling of particles dynamics through the fluid flow around them. Collective dynamics and self-organization in out-of-equilibrium colloidal systems (often termed as <em>active colloids</em>) is a rapidly growing area of research which led to the discovery of novel dynamic architectures and functionalities that are not generally available at equilibrium.<br>\r\n Colloidal systems have been the subject of intense research for a long time due to their ubiquitous technological applications. Colloidal particles display Brownian motion, size in the visible wavelength and dynamics in experimentally accessible timeframes (milliseconds to seconds) making them an attractive platform for the experiments and the computational modeling. The pair interactions between particles can be easily adjusted in strength and range by applying relatively small external fields. When driven by external forces or an internal energy source, colloids can mimic motile biological entities and can serve as a testbed for exploring the rich and complex physics of out-of-equilibrium systems. These dissipative colloidal structures utilize energy to generate and maintain structural complexity. Experiments and numerical simulations along this line of research have often revealed nontrivial collective dynamics and emergent large-scale structures [1-17]. With the proposed workshop we would like to provide a platform for discussing several new and important trends in this field of active colloidal materials, that is, chirality, non-reciprocity, and memory.<br>\r\nA recent hot trend in the field of active colloids explores the emergence of coherent motion and self-organization in systems with chirality [5-11]. Chirality is an intrinsic fundamental property of many natural and synthetic systems. Colloidal particles driven by external torques [12-18] constitute an ideal model system to investigate these phenomena since they avoid the inherent complexity of biological active matter. Spinning particles dispersed in a fluid represent a special class of artificial active systems that inject vorticity at the microscopic level [19-25]. Dense collections of interacting spinning particles represent a chiral fluid [26], which breaks parity and time-reversal symmetries, and displays a novel viscosity feature called the odd viscosity and elasticity [27, 28]. The odd viscosity has been identified in interacting chiral spinners [29], and it led to remarkable effects such as production of flow perpendicular to the pressure [27], topological waves [30], or the emergence of edge currents [29]. Magnetic rollers dynamically assemble into a vortex under harmonic confinement, that spontaneously selects a sense of rotation and is capable of chirality switching [31,32]. Multiple motile vortices unbound from any confinement have been revealed in ensembles of magnetic rollers powered by a uniaxial field [33]. Oscillating chiral flows were generated when a roller liquid was coupled to fixed obstacles [34]. There has been an increasing effort to investigate collective phenomena in systems composed of chiral active units [11, 35-40]. Synchronized self-assembled magnetic spinners at the liquid interface revealed structural transitions from liquid to nearly crystalline states and demonstrated reconfigurability coupled to a self-healing behavior [41]. Activity-induced synchronization leading to a mutual flocking, and chiral self- sorting has been observed in modeled ensembles of self-propelled circle swimmers [42]. Shape anisotropic particles powered by the Quincke phenomenon led to the realization of chiral rollers (similar to circle swimmers) with spontaneously selected handedness of their motion and activity-dependent curvature of trajectories [43].<br>\r\nAnother fast-developing direction in the field of non-equilibrium active and driven colloids is the realization of systems characterized by non-reciprocity of interactions or memory effects and how they can lead to emerging collective phenomena. Due to the intrinsic nonequilibrium nature of active systems, the couplings between particles often deviate from the standard form derivable from a Hamiltonian. One intriguing example is a time-delayed coupling involving a discrete delay time (or a distribution of such times). Such a situation arises, for example, through a delay in communication or sensing, and can be artificially created via a feedback loop [44]. Another topic attracting a lot of attention in the community is based on active systems with nonreciprocal couplings that can arise, for example, through chemotaxis or phoretic interactions between self-propelling colloids [45], or through predator-prey or vision-cone interactions [46,47] in macroscopic active systems. On the collective level, is now well established that non-reciprocity can induce new types of phase transitions [48] and patterns with broken time- and parity symmetry, including travelling patterns [49,50] and globally chiral motion without chirality of the individual constituents [51]. While many of these studies have been pursued only at a mean field-theoretical level, there is also an increasing interest in understanding corresponding particle-scale effects, that can only be accessed by numerical simulations [52] or corresponding experiments. For example, non-reciprocal interactions may generate new types of self-assembled systems able to learn and to produce transition between different shapes [53]. Establishing the precise connection between the different length and time scales is still an important challenge. Here, computer simulations are an indispensable tool.<br>\r\nMany standard models of active motion implicitly assume an inert (equilibrium) environment yielding instantaneous friction and noise. In contrast, several recent studies [54,19] explore the impact of retarded friction as it arises in viscoelastic environments made, e.g., of polymers, liquid crystals, or biological tissues [55-57]. An extreme case is time-delay [44]. From a theoretical and computational perspective, retarded friction or, more generally, non-Markovian dynamics, still provides a severe challenge. This concerns, e.g., the extraction (or modelling) of memory kernels, but also the actual solution of the coupled equations of motion, each being subject to history effects. As a consequence, only few studies on the emerging collective behavior of active particles with memory are currently available, including collective effects in systems of feedback-driven colloids [58] and pattern formation in a non-Newtonian active system [59]. Advancing numerical methods capable of treating memory effects will become more and more important in view of the recent experimental progress in this field. Experimentally, the memory effects in the system can be induced, e.g., by temporal activity modulations at intermediate timescales of the interactions in the colloidal ensemble [60]. Such modulations generate active particles with partial memory (at the particle level) of their motion from the previous activity cycles (either through partial depolarization or remnant hydrodynamic flows induced by the particle motion). Novel dynamic patterns (such as localized multiple vortices, flocks, pulsating lattices) has been revealed in ensembles of Quinke rollers [60,61]. When coupled to the fluid flows, active particle with memory can produce activity shockwaves [62]. Also, it has been recently demonstrated that active colloidal ensembles realized by Quinke rollers can effectively develop “ensemble memory”, where the information about the dynamic state of the system is distributed over the whole ensemble [63]. This information can be effectively exploited to command subsequent collective polar states of the active colloidal ensemble through activity cycling [63] and can pave the way toward direct applications in different technological fields related to microfluidics and microrobotics.<br>\r\nDeveloping fundamental understanding of the complex colloidal dynamics in systems driven out-of-equilibrium by external fields represents a significant theoretical and computational challenge as it involves multi-body interactions, the overlapping of length- and timescales, and the coupling of particle interactions with the fluid flow. Some of the features may be understood using phenomenological using continuum descriptions [21-23] Nevertheless, the microscopic mechanisms leading to the dynamic self-assembly and their relations to the emergent behavior in active colloidal fluids with chirality, non-reciprocal interactions, and memory often remain unclear. <em>Computer simulations are practically the only method to theoretically investigate such questions. </em>However, modeling of the nonequilibrium dynamics presents a formidable computational challenge due to the complex many- body interactions and collective dynamics at different time and lengths scales. One of the main challenges is to properly account for the particle-fluid coupling. On a coarse-grained level, the fluid flow around colloids is modeled by molecular dynamics methods like Lattice-Boltzmann [64] and Multi Particle Collision Dynamics [65,66]. An alternative approach is to describe the colloidal dynamics by molecular dynamics simulation, or an amplitude equation (Ginzburg-Landau type equation) coupled to the Navier-Stokes equations describing large-scale time- averaged hydrodynamic flows induced by the colloids [67,68].<br>\r\n<br>\r\n<strong>Reference</strong><br>\r\n<br>\r\n[1] B. A. Grzybowski and G. M. Whitesides, “Dynamic Aggregation of Chiral Spinners” Science 296, 718-721 (2002).<br>\r\n[2] Y. Sumino, K. H. Nagai, Y. Shitaka, D. Tanaka, K. Yoshikawa, H. Chaté, K. Oiwa “Large-scale vortex lattice emerging from collectively moving microtubules”, Nature 483, 448-452 (2012).<br>\r\n[3] A Snezhko, I. Aranson, “Magnetic manipulation of self-assembled colloidal asters”, Nature Materials 10, 698-703 (2011).<br>\r\n[4] A. P. Petrov, X.-L. Wu, and A. Libchaber, “Fast-Moving Bacteria Self-Organize into Active Two- Dimensional Crystals of Rotating Cells”, Phys. Rev. Lett. 114, 158102 (2015).<br>\r\n[5] Bowick, M. J., Fakhri, N., Marchetti, M. C., & Ramaswamy, S. “Symmetry, thermodynamics, and topology in active matter”, Phys. Rev. X, 12(1), 010501 (2022).<br>\r\n[6] C. Scholz, A. Ldov, T. Pöschel, M. Engel, H. Löwen “Surfactants and rotelles in active chiral fluids” Science Advances 7 (16), eabf8998 (2021).<br>\r\n[7] G. Kokot, S. Das, R. Winkler, G. Gompper, I. Aranson, and A. Snezhko, “Active turbulence in a gas of self- assembled spinners”, Proc. Nat. Acad. Sci. U.S.A. 114, 12870 (2017).<br>\r\n[8] B. C. van Zuiden, J. Paulose, W. T. M. Irvine, D. Bartolo, and V. Vitelli, “Spatiotemporal order and emergent edge currents in active spinner materials” Proc. Natl Acad. Sci. USA 113, 12919 (2016).<br>\r\n[9] C. Scholz, M. Engel, and T. Pöschel, “Rotating robots move collectively and self-organize” Nature Comm. 9, 931 (2018).<br>\r\n[10] Han, M., Fruchart, M., Scheibner, C., Vaikuntanathan, S., De Pablo, J. J., Vitelli, V. “Fluctuating hydrodynamics of chiral active fluids”, Nature Physics, 17(11), 1260 (2021).<br>\r\n[11] T.H Tan, A. Mietke, J. Li, Y Chen, H. Higinbotham, PJ Foster, S Gokhale, Fakhri, N, “Odd dynamics of living chiral crystals”, Nature 607, 287 (2022).<br>\r\n[12] J. Dobnikar, A. Snezhko, A. Yethiraj, “Emergent colloidal dynamics in electromagnetic fields”, Soft Matter 9, 3693 (2013).<br>\r\n[13] F. Ma, S. Wang, D. T. Wu and N. Wu, \"Electric-field–induced assembly and propulsion of chiral colloidal clusters\" Proc. Natl. Acad. Sci. U. S. A. 112, 6307–6312 (2015).<br>\r\n[14] Z. Shen, A. Würger and J. S. Lintuvuori “Hydrodynamic self-assembly of active colloids: chiral spinners and dynamic crystals” Soft Matter, 15, 1508-1521 (2019).<br>\r\n[15] P. Tierno, R. Muruganathan, and T. M. Fischer, “Viscoelasticity of Dynamically Self-Assembled Paramagnetic Colloidal Clusters”, Phys. Rev. Lett. 98, 028301 (2007).<br>\r\n[16] Driscoll, M., Delmotte, B., Youssef, M., Sacanna, S., Donev, A., Chaikin, P., 2017, “Unstable fronts and motile structures formed by microrollers”, Nature Physics, 13, 375 (2017).<br>\r\n[17] J. E. Martin, A. Snezhko, “Driving self-assembly and emergent dynamics in colloidal suspensions by time- dependent magnetic fields”, Rep. Prog. Phys. 76, 126601 (2013).<br>\r\n[18] R. Di Leonardo, A. Buzas, L. Kelemen, G. Vizsnyiczai, L. Oroszi, and P. Ormos, “Hydrodynamic Synchronization of Light Driven Microrotors” Phys. Rev. Lett. 109, 034104 (2012).<br>\r\n[19] N. Narinder, C. Bechinger and J. R. Gomez-Solano “Memory-Induced Transition from a Persistent Random Walk to Circular Motion for Achiral Microswimmers”, Phys. Rev. Lett. 121, 078003 (2018).<br>\r\n[20] C. Lozano, J. Ruben Gomez-Solano and C. Bechinger “Active particles sense micromechanical properties of glasses” Nat. Materials, 18, 1118–1123 (2019).<br>\r\n[21] M. C. Marchetti, J. F. Joanny, S. Ramaswamy, T. B. Liverpool, J. Prost, M. Rao, and R. Aditi Simha “Hydrodynamics of soft active matter” Reviews of Modern Physics 85 (3), 1143.<br>\r\n[22] I. Llopis and I. Pagonabarraga, “Dynamic regimes of hydrodynamically coupled self-propelling particles” Europhys. Lett. 75, 999 (2006).<br>\r\n[23] M. Leoni and T. B. Liverpool, “Dynamics and interactions of active rotors” Europhys. Lett. 92, 64004 (2010).<br>\r\n[24] N. H. P. Nguyen, D. Klotsa, M. Engel, and S. C. Glotzer, “Emergent Collective Phenomena in a Mixture of Hard Shapes through Active Rotation” Phys. Rev. Lett. 112, 075701 (2014).<br>\r\n[25] Z. Shen and J. S. Lintuvuori, “Hydrodynamic clustering and emergent phase separation of spherical spinners” Phys. Rev. Research 2, 013358 (2020).<br>\r\n[26] D. Banerjee, A. Souslov, A. G. Abanov, and V. Vitelli, “Odd viscosity in chiral active fluids” Nature Comm. 8, 1573 (2017).<br>\r\n[27] T. Markovich and T. C. Lubensky, “Odd viscosity in active matter: microscopic origin and 3D effects” Phys. Rev. Lett. 127, 048001 (2021).<br>\r\n[28] C Scheibner, A Souslov, D Banerjee, P Surówka, W. Irvine, V Vitelli, “Odd elasticity”, Nature Physics 16, 475 (2020).<br>\r\n[29] V. Soni, E. S. Bililign, S. Magkiriadou, S. Sacanna, D. Bartolo, M. J. Shelley, and W. T. M. Irvine, “The odd free surface flows of a colloidal chiral fluid” Nature Physics 15, 1188 (2019).<br>\r\n[30] A. Souslov, K. Dasbiswas, M. Fruchart, S. Vaikuntanathan, and Vincenzo Vitelli, “Topological Waves in Fluids with Odd Viscosity” Phys. Rev. Lett. 122, 128001 (2019).<br>\r\n[31] G. Kokot, A. Snezhko, “Manipulation of emergent vortices in swarms of magnetic rollers.” Nat. Commun. 9, 2344 (2018).<br>\r\n[32] A. Kaiser, A. Snezhko, I. S. Aranson, “Flocking ferromagnetic colloids.” Sci. Adv. 3, e1601469 (2017).<br>\r\n[33] K Han, G Kokot, O Tovkach, A Glatz, IS Aranson, A Snezhko, “Emergence of self-organized multivortex states in flocks of active rollers.” Proc. Nat. Acad. Sci. U. S. A. 117 (18), 9706-9711 (2020).<br>\r\n[34] B. Zhang, B. Hilton, C. Short, A. Souslov, A. Snezhko, “Oscillatory chiral flows in confined active fluids with obstacles.” Phys. Rev. Res. 2, 043225 (2020).<br>\r\n[35] S. Farhadi, S. Machaca, J. Aird, B. O. Torres Maldonado, S. Davis, P. E. Arratia, D. J. Durian, Dynamics and thermodynamics of air-driven active spinners. Soft Matter 14, 5588–5594 (2018).<br>\r\n[36] C. Scholz, M. Engel, T. Pöschel, Rotating robots move collectively and self-organize. Nat. Commun. 9, 931 (2018).<br>\r\n[37] A. M. Brooks, M. Tasinkevych, S. Sabrina, D. Velegol, A. Sen, K. J. M. Bishop, Shape-directed rotation of homogeneous micromotors via catalytic self-electrophoresis. Nat. Commun. 10, 495 (2019).<br>\r\n[38] N. H. P. Nguyen, D. Klotsa, M. Engel, S. C. Glotzer, Emergent collective phenomena in a mixture of hard shapes through active rotation. Phys. Rev. Lett. 112, 075701 (2014).<br>\r\n[39] Guo-Jun Liao, S.H.L. Klapp, \"Emergent vortices and phase separation in systems of chiral active particles with dipolar interactions\", Soft Matter, 2021, Advance Article (10.1039/d1sm00545f).<br>\r\n[40] K. Yeo, E. Lushi, P. M. Vlahovska, Collective dynamics in a binary mixture of hydrodynamically coupled microrotors. Phys. Rev. Lett. 114, 188301 (2015).<br>\r\n[41] K. Han, G. Kokot, S. Das, R. G. Winkler, G. Gompper, A. Snezhko, “Reconfigurable structure and tunable transport in synchronized active spinner materials.” Science advances 6 (12), eaaz8535 (2020).<br>\r\n[42] D. Levis, I. Pagonabarraga, B. Liebchen, Activity induced synchronization: mutual flocking, chiral self- sorting. Phys. Rev. Res. 1, 023026 (2019).<br>\r\n[43] B. Zhang, A. Sokolov, A.Snezhko, Reconfigurable emergent patterns in active chiral fluids. Nature Comm. 11,1-9 (2020).<br>\r\n[44] X. Wang, P.-C. Chen, K. Kroy, V. Holubec, F. Cichos “Spontaneous vortex formation by microswimmers with retarded attractions”, Nature Comm. 14, 56 (2023).<br>\r\n[45] R. Soto, R. Golestanian, “Self-Assembly of Catalytically Active Colloidal Molecules: Tailoring Activity Through Surface Chemistry”, Phys. Rev. Lett. 112, 068301 (2014).<br>\r\n[46] L. Barberis, F. Peruani, “Large-Scale Patterns in a minimal cognitive flocking model: Incidental leaders, nematic patterns, and aggregates”, Phys. Rev. Lett. 117, 248001 (2016).<br>\r\n[47] F. A. Lavergne, H. Wendehenne, T. Bäuerle, C. Bechinger, “Group formation and cohesion of active particles with visual perception–dependent motility” Science 364, 70 (2019).<br>\r\n[48] S. A. M. Loos, S. H. L. Klapp, T. Martynec, “Long-Range Order and Directional Defect Propagation in the Nonreciprocal ?? Model with Vision Cone Interactions”, Phys. Rev. Lett. 130, 198301 (2023).<br>\r\n[49] Z. You, A. Baskaran, M. C. Marchetti, “Nonreciprocity as a generic route to traveling states” PNAS 117, 19767 (2020).<br>\r\n[50] S. Saha, J. Agudo-Canalejo, R. Golestanian, “Scalar Active Mixtures: The Nonreciprocal Cahn-Hilliard Model”, Phys. Rev. X 10, 041009 (2020).<br>\r\n[51] M. Fruchart, R. Hanai, P. B. Littlewood, V. Vitelli, “Nonreciprocal phase transitions” Nature 592, 363 (2021).<br>\r\n[52] M. Knezevic, T. Welker, H. Stark, “Collective motion of active particles exhibiting non-reciprocal orientational interactions”, Sci. Rep. 12, 19437 (2022).<br>\r\n[53] S. Osat, R. Golestanian, “Non-reciprocal multifarious self-organization”, Nature Nanotechnology 18, 79 (2023).<br>\r\n[54] A. R. Sprenger, C. Bair, and H. Löwen, “Active Brownian motion with memory delay induced by a viscoelastic medium”, Phys. Rev. E 105, 044610 (2022).<br>\r\n[55] J. Teran, L. Fauci, and M. Shelley, “Viscoelastic fluid response can increase the speed and efficiency of a free swimmer”, Phys. Rev. Lett. 104, 038101 (2010).<br>\r\n[56] K. Yasuda, M. Kuroda, and S. Komura, “Reciprocal microswimmers in a viscoelastic fluid”, Phys. Fluids 32, 9 (2020).<br>\r\n[57] G. Li, E. Lauga, and A. M. Ardekani, “Microswimming in viscoelastic fluids”, J. Nonnewton. Fluid Mech. 297, 104655 (2021).<br>\r\n[58] R. Kopp and S.H.L. Klapp, “Spontaneous velocity alignment of Brownian particles with feedback-induced propulsion”, EPL, 143 (2023) 17002.<br>\r\n[59] H. Reinken, A. Menzel, “Vortex Pattern Stabilization in Thin Films Resulting from Shear Thickening of Active Suspensions”, Phys. Rev. Lett. 132, 138301 (2024).<br>\r\n[60] H. Karani, GE Pradillo, PM Vlahovska, Phys. Rev. Lett. 123 (20), 208002 (2019).<br>\r\n[61] B. Zhang, A Snezhko, A Sokolov, Phys. Rev. Lett. 128 (1), 018004 (2022).<br>\r\n[62] B. Zhang, A Glatz, IS Aranson, A Snezhko, Nature comm. 14 (1), 7050 (2023).<br>\r\n[63] B. Zhang, H Yuan, A Sokolov, MO de la Cruz, A Snezhko, Nature Physics 18 (2), 154-159 (2022).<br>\r\n[64] S. Chen, G.D. Doolen, “Lattice Boltzmann method for fluid flows”, Annu. Rev. Fluid Mech. 30, 329 (1998).<br>\r\n[65] Brenner, H. and Nadim, A., “The Lorentz reciprocal theorem for micropolar fluids”, Journal of Engineering Mathematics, 169–176 (1996).<br>\r\n[66] A. Malevanets and R. Kapral, “Solute molecular dynamics in a mesoscale solvent”, J. Chem. Phys. 112, 7260 (2000).<br>\r\n[67] G. Gompper, T. Ihle, D.M. Kroll, R.G. Winkler, “Multi-particle collision dynamics: A particle-based mesoscale simulation approach to the hydrodynamics of complex fluids”, Advances in Polymer Science 221, 1 (2009).<br>\r\n[68] M. Belkin, A. Glatz, A. Snezhko, I. Aranson, “Model for dynamic self-assembled surface structures”, Phys. Rev. E 82 (R), 015301 (2010).<br>\r\n </p>", "image_description": "", "creation_date": "2026-01-19T10:25:40", "last_modification_date": "2026-01-26T16:41:11", "link_label": "Emergent dynamics of active colloids: chirality, non-reciprocity and memory", "link_url": "https://www.cecam.org/workshop-details/emergent-dynamics-of-active-colloids-chirality-non-reciprocity-and-memory-1496", "canceled": "False", "cancel_reason": "", "place_and_room": "BCH 2103", "url_place_and_room": "https://plan.epfl.ch/?room==BCH%202103", "url_online_room": "", "spoken_languages": [ "https://memento.epfl.ch/api/v1/spoken_languages/2/?format=api" ], "speaker": "", "organizer": "<strong>Sabine Klapp</strong>, Technical University Berlin ; <strong>Alexey Snezhko</strong>, Argonne National Laboratory ; <strong>Pietro Tierno</strong>, University of Barcelona", "contact": "<a href=\"mailto:[email protected]\"><strong>Cornelia Bujenita</strong></a>, CECAM Events and Operations Manager", "is_internal": "False", "theme": "", "vulgarization": { "id": 2, "fr_label": "Public averti", "en_label": "Informed public" }, "registration": { "id": 1, "fr_label": "Sur inscription", "en_label": "Registration required" }, "keywords": "", "file": null, "icalendar_url": "https://memento.epfl.ch/event/export/119366/", "category": { "id": 1, "code": "CONF", "fr_label": "Conférences - Séminaires", "en_label": "Conferences - Seminars", "activated": true }, "academic_calendar_category": null, "domains": [], "mementos": [ "https://memento.epfl.ch/api/v1/mementos/1/?format=api", "https://memento.epfl.ch/api/v1/mementos/5/?format=api", "https://memento.epfl.ch/api/v1/mementos/6/?format=api", "https://memento.epfl.ch/api/v1/mementos/8/?format=api", "https://memento.epfl.ch/api/v1/mementos/27/?format=api" ] }, { "id": 70949, "title": "Complex Fluids at Interfaces: Structure, Stability, and Molecular Effects", "slug": "complex-fluids-at-interfaces-structure-stability-a", "event_url": "https://memento.epfl.ch/event/complex-fluids-at-interfaces-structure-stability-a", "visual_url": "https://memento.epfl.ch/image/32337/200x112.jpg", "visual_large_url": "https://memento.epfl.ch/image/32337/720x405.jpg", "visual_maxsize_url": "https://memento.epfl.ch/image/32337/max-size.jpg", "lang": "en", "start_date": "2026-06-17", "end_date": "2026-06-19", "start_time": null, "end_time": null, "description": "<p>You can apply to participate and find all the relevant information (speakers, abstracts, program,...) on the event website: <a href=\"https://www.cecam.org/workshop-details/complex-fluids-at-interfaces-structure-stability-and-molecular-effects-1492\">https://www.cecam.org/workshop-details/complex-fluids-at-interfaces-structure-stability-and-molecular-effects-1492</a>.<br>\r\n<br>\r\nRegistration is required to attend the full event, take part in the social activities and present a poster at the poster session (if any). However, the EPFL community is welcome to attend specific lectures without registration if the topic is of interest to their research. Do not hesitate to contact the <a href=\"mailto:[email protected]\">CECAM Event Manager</a> if you have any question.<br>\r\n<br>\r\n<strong>Description</strong><br>\r\n<br>\r\nComplex fluids are ubiquitous in biology, geophysics, and industry [1]. These materials are challenging to characterize and predict [1–4], particularly when they incorporate multiple interfaces, as in colloidal suspensions [4], foams [5–7], or nanoporous membranes [8–10]. Many of these interfaces are micro- or nano-scale and evolve over short times, which can obscure them to observation and pose challenges to experimentalists [2–5, 11, 12]. This opens exciting opportunities for a strong partnership between the development of novel theoretical, computational, and experimental techniques.<br>\r\nProbing interfaces presents unique challenges compared to probing complex fluids in the bulk. The interfacial structure and constitutive behavior then depend on the composition of two fluids as well as the interfacial configuration [13, 14]. Translating this increased complexity to a computational framework involves developing reliable models describing molecular interactions near fluid-fluid or fluid-solid interfaces [15–17], as well as models for continuum stresses [18]. Molecular modeling is necessary to reveal the physics of chemically-complex structures [17], but is computationally expensive, and it can be challenging to identify the relevant physics to include [19]. Yet the interface also provides unique opportunities for control: in liquid crystals, for example, interfacial stresses can be transmitted through the bulk, leading to novel pattern formation [20] and optical materials exploiting interfacial control [21]. Finally, interfaces are prone to instabilities, which can make flows unpredictable, but opens opportunities to exploit unstable growth for spontaneous patterning.<br>\r\nTo underscore the present challenges, even for a “simple” Newtonian fluid, the presence of an interface may hinder understanding of flow mechanics. For example, mechanisms for contact during drop impact are still debated [22]: molecular dynamics (MD) simulations can clarify which effects dominate among interfacial instabilities, electrostatic charge, gas-kinetic effects, and other driving forces [22–26], in addition to liquid/surface chemistry [27, 28]. Diffusive processes at interfaces [29] and nanoscale membrane flows, where osmotic and phoretic effects are significant [11, 30], also require further development in MD or coarse-grained models.<br>\r\n <br>\r\n<strong>This workshop aims to foster exchanges around the following </strong><strong>broad questions:</strong>\r\n</p><ul>\r\n\t<li>How do <strong>molecular phenomena</strong><strong> </strong>determine the <strong>structural properties and interfacial dynamics </strong>of complex fluid interfaces?</li>\r\n\t<li>How do we approach <strong>a rigorous, robust, and predictive upscaling </strong>between non-continuum computational approaches (e.g. MD, coarse-grained models), which are computationally costly, and large-scale systems? Can we extract universal quantities or concepts from MD to be used in a continuum model? Are these potential quantities intrinsic properties or do they depend on the flow configuration and hence require an ad hoc calibration for each flow situation?</li>\r\n\t<li><strong>How can emerging experimental and computational techniques inform our understanding of </strong><strong>interfacial instabilities in complex fluids? </strong>Can we account for instabilities arising from molecular and meso-scales in a macroscopic stability analysis?</li>\r\n\t<li>Is it possible to <strong>incorporate microscopic effects into macroscopic models </strong>which 'go beyond' the conventional Navier-Stokes-Fourier paradigm? For example, can effective viscosities adequately account for molecular effects, or can noise terms incorporate thermal fluctuations? Can these models be captured by extending existing computational approaches, or do they require entirely new frameworks?</li>\r\n</ul>\r\n<strong>The list of confirmed speakers will be announced in February. </strong>In addition, a limited number of abstracts may be submitted for the poster session – submissions will open in February.<br>\r\n<br>\r\n<strong>References</strong><br>\r\n<br>\r\n<a href=\"https://doi.org/10.1021/acs.langmuir.3c03727\" target=\"_blank\">[1] L. Veldscholte, J. Snoeijer, W. den Otter, S. de Beer, Langmuir, <strong>40</strong>, 4401-4409 (2024)</a><br>\r\n<a href=\"https://doi.org/10.1017/jfm.2023.659\" target=\"_blank\">[2] G. Zampogna, P. Ledda, K. Wittkowski, F. Gallaire, J. Fluid Mech., <strong>970</strong>, A39 (2023)</a><br>\r\n<a href=\"https://doi.org/10.1103/physrevlett.134.054001\" target=\"_blank\">[3] A. Carbonaro, G. Savorana, L. Cipelletti, R. Govindarajan, D. Truzzolillo, Phys. Rev. Lett., <strong>134</strong>, 054001 (2025)</a><br>\r\n<a href=\"https://doi.org/10.1002/adma.202502173\" target=\"_blank\">[4] L. Buonaiuto, S. Reuvekamp, B. Shakhayeva, E. Liu, F. Neuhaus, B. Braunschweig, S. de Beer, F. Mugele, Advanced Materials, <strong>37</strong>, (2025)</a><br>\r\n<a href=\"https://doi.org/10.1021/acs.jpcb.4c02513\" target=\"_blank\">[5] J. Sun, L. Li, R. Zhang, H. Jing, R. Hao, Z. Li, Q. Xiao, L. Zhang, J. Phys. Chem. B, <strong>128</strong>, 7871-7881 (2024)</a><br>\r\n<a href=\"https://doi.org/10.1063/5.0205314\" target=\"_blank\">[6] H. Liu, J. Zhang, Physics of Fluids, <strong>36</strong>, (2024)</a><br>\r\n<a href=\"https://doi.org/10.1103/physrevlett.131.164001\" target=\"_blank\">[7] S. Perumanath, M. Chubynsky, R. Pillai, M. Borg, J. Sprittles, Phys. Rev. Lett., <strong>131</strong>, 164001 (2023)</a><br>\r\n<a href=\"https://doi.org/10.1103/physrevlett.134.134001\" target=\"_blank\">[8] F. Yu, A. Ratschow, R. Tao, X. Li, Y. Jin, J. Wang, Z. Wang, Phys. Rev. Lett., <strong>134</strong>, 134001 (2025)</a><br>\r\n<a href=\"https://doi.org/10.1103/physrevfluids.8.103602\" target=\"_blank\">[9] R. Kaviani, J. Kolinski, Phys. Rev. Fluids, <strong>8</strong>, 103602 (2023)</a><br>\r\n<a href=\"https://doi.org/10.1146/annurev-fluid-121021-021121\" target=\"_blank\">[10] J. Sprittles, Annu. Rev. Fluid Mech., <strong>56</strong>, 91-118 (2024)</a><br>\r\n<a href=\"https://doi.org/10.1038/s41377-022-00930-5\" target=\"_blank\">[11] L. Ma, C. Li, J. Pan, Y. Ji, C. Jiang, R. Zheng, Z. Wang, Y. Wang, B. Li, Y. Lu, Light. Sci. Appl., <strong>11</strong>, 270 (2022)</a><br>\r\n<a href=\"https://doi.org/10.1038/s41467-023-43978-6\" target=\"_blank\">[12] Q. Zhang, W. Wang, S. Zhou, R. Zhang, I. Bischofberger, Nat. Commun., <strong>15</strong>, 7 (2024)</a><br>\r\n<a href=\"https://doi.org/10.1039/d4cc01557f\" target=\"_blank\">[13] R. Ishraaq, S. Das, Chem. Commun., <strong>60</strong>, 6093-6129 (2024)</a><br>\r\n<a href=\"https://doi.org/10.1146/annurev-fluid-122316-045034\" target=\"_blank\">[14] S. Popinet, Annu. Rev. Fluid Mech., <strong>50</strong>, 49-75 (2018)</a><br>\r\n<a href=\"https://doi.org/10.1039/d4cp02128b\" target=\"_blank\">[15] L. Smook, R. Ishraaq, T. Akash, S. de Beer, S. Das, Phys. Chem. Chem. Phys., <strong>26</strong>, 25557-25566 (2024)</a><br>\r\n<a href=\"https://doi.org/10.1146/annurev-fluid-031821-104935\" target=\"_blank\">[16] R. Ewoldt, C. Saengow, Annu. Rev. Fluid Mech., <strong>54</strong>, 413-441 (2022)</a><br>\r\n<a href=\"https://doi.org/10.1021/acsmacrolett.7b00812\" target=\"_blank\">[17] H. Liang, Z. Cao, Z. Wang, A. Dobrynin, ACS Macro Lett., <strong>7</strong>, 116-121 (2018)</a><br>\r\n<a href=\"https://doi.org/10.1038/s41467-017-00636-y\" target=\"_blank\">[18] Q. Xu, K. Jensen, R. Boltyanskiy, R. Sarfati, R. Style, E. Dufresne, Nat. Commun., <strong>8</strong>, 555 (2017)</a><br>\r\n<a href=\"https://doi.org/10.1103/physreve.111.055103\" target=\"_blank\">[19] A. Fukushima, S. Oyagi, T. Tokumasu, Phys. Rev. E, <strong>111</strong>, 055103 (2025)</a><br>\r\n<a href=\"https://doi.org/10.1088/1361-6501/ad66f9\" target=\"_blank\">[20] K. Jorissen, L. Veldscholte, M. Odijk, S. de Beer, Meas. Sci. Technol., <strong>35</strong>, 115501 (2024)</a><br>\r\n<a href=\"https://doi.org/10.1073/pnas.2221304120\" target=\"_blank\">[21] A. Allemand, M. Zhao, O. Vincent, R. Fulcrand, L. Joly, C. Ybert, A. Biance, Proc. Natl. Acad. Sci. U.S.A., <strong>120</strong>, (2023)</a><br>\r\n<a href=\"https://doi.org/10.1146/annurev-fluid-071320-095958\" target=\"_blank\">[22] N. Kavokine, R. Netz, L. Bocquet, Annu. Rev. Fluid Mech., <strong>53</strong>, 377-410 (2021)</a><br>\r\n<a href=\"https://doi.org/10.1038/s41563-020-0625-8\" target=\"_blank\">[23] L. Bocquet, Nat. Mater., <strong>19</strong>, 254-256 (2020)</a><br>\r\n<a href=\"https://doi.org/10.1126/science.aan2438\" target=\"_blank\">[24] R. Tunuguntla, R. Henley, Y. Yao, T. Pham, M. Wanunu, A. Noy, Science, <strong>357</strong>, 792-796 (2017)</a><br>\r\n<a href=\"https://doi.org/10.1073/pnas.1705181114\" target=\"_blank\">[25] P. Beltramo, M. Gupta, A. Alicke, I. Liascukiene, D. Gunes, C. Baroud, J. Vermant, Proc. Natl. Acad. Sci. U.S.A., <strong>114</strong>, 10373-10378 (2017)</a><br>\r\n<a href=\"https://doi.org/10.1103/physrevlett.133.088202\" target=\"_blank\">[26] C. Guidolin, E. Rio, R. Cerbino, F. Giavazzi, A. Salonen, Phys. Rev. Lett., <strong>133</strong>, 088202 (2024)</a><br>\r\n<a href=\"https://doi.org/10.1017/jfm.2021.529\" target=\"_blank\">[27] A. Bussonnière, I. Cantat, J. Fluid Mech., <strong>922</strong>, A25 (2021)</a><br>\r\n<a href=\"https://doi.org/10.1103/physreve.95.030602\" target=\"_blank\">[28] L. Oyarte Gálvez, S. de Beer, D. van der Meer, A. Pons, Phys. Rev. E, <strong>95</strong>, 030602 (2017)</a><br>\r\n<a href=\"https://doi.org/10.1021/acs.macromol.4c01604\" target=\"_blank\">[29] V. Calabrese, A. Shen, S. Haward, Macromolecules, <strong>57</strong>, 9668-9676 (2024)</a><br>\r\n<a href=\"https://doi.org/10.1073/pnas.2211347120\" target=\"_blank\">[30] M. Kumar, J. Guasto, A. Ardekani, Proc. Natl. Acad. Sci. U.S.A., <strong>120</strong>, (2023)</a><br>\r\n ", "image_description": "", "creation_date": "2026-01-26T14:11:21", "last_modification_date": "2026-01-26T16:41:44", "link_label": "Complex Fluids at Interfaces: Structure, Stability, and Molecular Effects", "link_url": "https://www.cecam.org/workshop-details/complex-fluids-at-interfaces-structure-stability-and-molecular-effects-1492", "canceled": "False", "cancel_reason": "", "place_and_room": "BCH 2103", "url_place_and_room": "https://plan.epfl.ch/?room==BCH%202103", "url_online_room": "", "spoken_languages": [ "https://memento.epfl.ch/api/v1/spoken_languages/2/?format=api" ], "speaker": "", "organizer": "<strong>Irmgard Bischofberger, </strong>MIT ; <strong>Lebo Molefe, </strong>EPFL ; <strong>James Sprittles, </strong>University of Warwick ; <strong>Giuseppe Zampogna, </strong>Università degli Studi di Genov", "contact": "<a href=\"mailto:[email protected]\"><strong>Cornelia Bujenita</strong></a>, CECAM Events and Operations Manager", "is_internal": "False", "theme": "", "vulgarization": { "id": 2, "fr_label": "Public averti", "en_label": "Informed public" }, "registration": { "id": 1, "fr_label": "Sur inscription", "en_label": "Registration required" }, "keywords": "", "file": null, "icalendar_url": "https://memento.epfl.ch/event/export/119438/", "category": { "id": 1, "code": "CONF", "fr_label": "Conférences - Séminaires", "en_label": "Conferences - Seminars", "activated": true }, "academic_calendar_category": null, "domains": [], "mementos": [ "https://memento.epfl.ch/api/v1/mementos/1/?format=api", "https://memento.epfl.ch/api/v1/mementos/5/?format=api", "https://memento.epfl.ch/api/v1/mementos/6/?format=api", "https://memento.epfl.ch/api/v1/mementos/8/?format=api", "https://memento.epfl.ch/api/v1/mementos/27/?format=api" ] }, { "id": 70899, "title": "Challenges in modelling ion channels: simulations meet experiments", "slug": "challenges-in-modelling-ion-channels-simulations-m", "event_url": "https://memento.epfl.ch/event/challenges-in-modelling-ion-channels-simulations-m", "visual_url": "https://memento.epfl.ch/image/32288/200x112.jpg", "visual_large_url": "https://memento.epfl.ch/image/32288/720x405.jpg", "visual_maxsize_url": "https://memento.epfl.ch/image/32288/max-size.jpg", "lang": "en", "start_date": "2026-04-15", "end_date": "2026-04-17", "start_time": null, "end_time": null, "description": "<p>You can apply to participate and find all the relevant information (speakers, abstracts, program,...) on the event website: <a href=\"https://www.cecam.org/workshop-details/challenges-in-modelling-ion-channels-simulations-meet-experiments-1369\">https://www.cecam.org/workshop-details/challenges-in-modelling-ion-channels-simulations-meet-experiments-1369</a>.<br>\r\n<br>\r\nRegistration is required to attend the full event, take part in the social activities and present a poster at the poster session (if any). However, the EPFL community is welcome to attend specific lectures without registration if the topic is of interest to their research. Do not hesitate to contact the <a href=\"mailto:[email protected]\">CECAM Event Manager</a> if you have any question.<br>\r\n<br>\r\n<strong>Description</strong><br>\r\n<br>\r\nThe human genome includes more than 300 genes coding for ion channel proteins, representing approximately 2% of the total number of genes. This abundance of ion channels highlights their critical role in numerous biological processes and their involvement in diseases, underscoring their importance as potential drug targets. Ion channels exert their biological roles through three main functional characteristics: the highly efficient selective conduction of ions; the capacity to open and close in response to chemical/physical stimuli (gating); and the decrease in conductance upon sustained stimuli (inactivation). In the last 20 years, the number of experimental atomic structures of ion channels has increased from a few units to hundreds, now including representative structures for most of the ion channel families. Simulations based on these experimental structures have significantly contributed to the current understanding of conduction, selectivity, gating, and inactivation [1-2]. Strengthening the quantitative agreement between simulations and experiments is now essential for advancing in this field. This effort is currently hampered by common issues in biomolecular simulations, such as the limited timescales for observing biologically relevant events and the sub-optimal accuracy of the underlying physical models. Both of these shortcomings are expected to be mitigated by recent methodological developments. For instance, atomic simulations of ion channels with polarizable force fields have been recently reported [3]. Lack of polarization is a well-known limitation of classical force fields, especially when describing ion-protein and ion-water interactions in a crowded environment like the pore cavity. Consequently, the usage of polarizable force fields is considered a promising strategy for improving the agreement with experimental data about ion conduction and selectivity. An alternative strategy for enhancing the model accuracy in critical channel regions is to combine molecular mechanics with quantum approaches. Thanks to the ever-increasing computational resources, now combined with advancements in codes for hybrid QM/MM models, this approach is becoming feasible for ion channel research [4]. Increasing computational resources, coupled with improved algorithms for accelerating rare events and potentially harnessing machine learning, are also opening new possibilities in the study of state transitions. Gating and inactivation events of ion channels are finally becoming accessible to atomic simulations, offering important insights into the mechanistic functioning of this important protein superfamily [5]. The proposed workshop will foster further developments in the field by bringing together leading scientists in the experimental methodologies and computational techniques used in ion channel research in a stimulating and collaborative environment.<br>\r\n <br>\r\n<strong>References</strong><br>\r\n<br>\r\n<a href=\"http://dx.doi.org/10.1021/acs.chemrev.8b00630\" target=\"_blank\">[1] E. Flood, C. Boiteux, B. Lev, I. Vorobyov, T. Allen, Chem. Rev., <strong>119</strong>, 7737-7832 (2019)</a><br>\r\n<a href=\"http://dx.doi.org/10.1080/23746149.2022.2080587\" target=\"_blank\">[2] C. Guardiani, F. Cecconi, L. Chiodo, G. Cottone, P. Malgaretti, L. Maragliano, M. Barabash, G. Camisasca, M. Ceccarelli, B. Corry, R. Roth, A. Giacomello, B. Roux, Advances in Physics: X, <strong>7</strong>, (2022)</a><br>\r\n<a href=\"http://dx.doi.org/10.1021/acs.jctc.0c00968\" target=\"_blank\">[3] V. Ngo, H. Li, A. MacKerell, T. Allen, B. Roux, S. Noskov, J. Chem. Theory Comput., <strong>17</strong>, 1726-1741 (2021)</a><br>\r\n<a href=\"http://dx.doi.org/10.1021/acs.jcim.2c01494\" target=\"_blank\">[4] F. Schackert, J. Biedermann, S. Abdolvand, S. Minniberger, C. Song, A. Plested, P. Carloni, H. Sun, J. Chem. Inf. Model., <strong>63</strong>, 1293-1300 (2023)</a><br>\r\n<a href=\"http://dx.doi.org/10.7554/elife.88403.1\" target=\"_blank\">[5] S. Pérez-Conesa, L. Delemotte, Free energy landscapes of KcsA inactivation, 2023</a></p>", "image_description": "", "creation_date": "2026-01-19T10:04:13", "last_modification_date": "2026-01-26T16:38:05", "link_label": "Challenges in modelling ion channels: simulations meet experiments", "link_url": "https://www.cecam.org/workshop-details/challenges-in-modelling-ion-channels-simulations-meet-experiments-1369", "canceled": "False", "cancel_reason": "", "place_and_room": "BCH 2103", "url_place_and_room": "https://plan.epfl.ch/?room==BCH%202103", "url_online_room": "", "spoken_languages": [ "https://memento.epfl.ch/api/v1/spoken_languages/2/?format=api" ], "speaker": "", "organizer": "<strong>Simone Furini</strong>, Alma Mater Studiorum - University of Bologna ; <strong>Alberto Giacomello</strong>, Sapienza University of Rome ; <strong>Luca Maragliano</strong>, Polytechnic University of Marche ; <strong>Matteo Masetti</strong>, Alma Mater Studiorum - University of Bologna", "contact": "<a href=\"mailto:[email protected]\"><strong>Cornelia Bujenita</strong></a>, CECAM Events and Operations Manager", "is_internal": "False", "theme": "", "vulgarization": { "id": 2, "fr_label": "Public averti", "en_label": "Informed public" }, "registration": { "id": 1, "fr_label": "Sur inscription", "en_label": "Registration required" }, "keywords": "", "file": null, "icalendar_url": "https://memento.epfl.ch/event/export/119362/", "category": { "id": 1, "code": "CONF", "fr_label": "Conférences - Séminaires", "en_label": "Conferences - Seminars", "activated": true }, "academic_calendar_category": null, "domains": [], "mementos": [ "https://memento.epfl.ch/api/v1/mementos/1/?format=api", "https://memento.epfl.ch/api/v1/mementos/5/?format=api", "https://memento.epfl.ch/api/v1/mementos/6/?format=api", "https://memento.epfl.ch/api/v1/mementos/8/?format=api", "https://memento.epfl.ch/api/v1/mementos/27/?format=api" ] }, { "id": 70955, "title": "Bridging Biomolecular Simulations and Experiments Across Time and Length Scales: from Single Molecules to Entire Organelles", "slug": "bridging-biomolecular-simulations-and-experiments", "event_url": "https://memento.epfl.ch/event/bridging-biomolecular-simulations-and-experiments", "visual_url": "https://memento.epfl.ch/image/32343/200x112.jpg", "visual_large_url": "https://memento.epfl.ch/image/32343/720x405.jpg", "visual_maxsize_url": "https://memento.epfl.ch/image/32343/max-size.jpg", "lang": "en", "start_date": "2026-09-14", "end_date": "2026-09-17", "start_time": null, "end_time": null, "description": "<p>You can apply to participate and find all the relevant information (speakers, abstracts, program,...) on the event website: <a href=\"https://www.cecam.org/workshop-details/bridging-biomolecular-simulations-and-experiments-across-time-and-length-scales-from-single-molecules-to-entire-organelles-1493\">https://www.cecam.org/workshop-details/bridging-biomolecular-simulations-and-experiments-across-time-and-length-scales-from-single-molecules-to-entire-organelles-1493</a>.<br>\r\n<br>\r\nRegistration is required to attend the full event, take part in the social activities and present a poster at the poster session (if any). However, the EPFL community is welcome to attend specific lectures without registration if the topic is of interest to their research. Do not hesitate to contact the <a href=\"mailto:[email protected]\">CECAM Event Manager</a> if you have any question.<br>\r\n<br>\r\n<strong>Description</strong><br>\r\n<br>\r\nMolecular simulations are firmly established as a central tool in the life sciences over the last few decades. This is evident from the now-standard use of molecular dynamics simulations by molecular biologists and biophysicists, and the remarkable success of AlphaFold, which has convinced even the most skeptical of the critical role of these methods in contemporary biological research.<br>\r\nHowever, new challenges are emerging. It is increasingly apparent that to understand biomolecular function, we must move beyond studying isolated molecules. The focus is now shifting towards examining large, dynamic complexes of biomolecules within their complex native environments, complete with post-translational modifications. Embracing this complexity is crucial for understanding how biological functions and cellular structures emerge and adapt.<br>\r\nThis workshop will address existing and emerging frontiers, discussing both current challenges and the future of molecular simulations needed to meet them. It will gather simulation experts that have been actively developing methods that can increase simulation accuracy and extend their applicability range across multiple scales, as well as experimentalists performing advanced studies that can address outstanding challenges occurring at computationally accessible time and length scales. A main aim will be to discuss how to improve the accuracy of simulations, integrate simulations and cutting-edge experiments, and how to best take advantage of innovative enhanced sampling and machine learning-based approaches.<br>\r\nThe workshop will seize the opportunity to celebrate the outstanding scientific achievements of Gerhard Hummer, a prominent leader in the field, on his sixty’s birthday. Many of the participants that have already expressed their intention to attend and support the workshop or past or current theoretical and experimental scientist that have been either collaborators and co-authors, mentored by, or inspired by Gerhard’s ideas and expertise.</p>", "image_description": "", "creation_date": "2026-01-26T15:39:35", "last_modification_date": "2026-01-26T16:44:37", "link_label": "Bridging Biomolecular Simulations and Experiments Across Time and Length Scales: from Single Molecul", "link_url": "https://www.cecam.org/workshop-details/bridging-biomolecular-simulations-and-experiments-across-time-and-length-scales-from-single-molecules-to-entire-organelles-1493", "canceled": "False", "cancel_reason": "", "place_and_room": "BCH 2103", "url_place_and_room": "https://plan.epfl.ch/?room==BCH%202103", "url_online_room": "", "spoken_languages": [ "https://memento.epfl.ch/api/v1/spoken_languages/2/?format=api" ], "speaker": "", "organizer": "<strong>Nicolae-Viorel Buchete</strong>, University College Dublin ; <strong>Pilar Cossio</strong>, Flatiron Institute ; <strong>Roberto Covino</strong>, Goethe University Frankfurt -- Frankfurt Institute for Advanced Studies ; <strong>Ville Kaila</strong>, Stockholm University ; <strong>Edina Rosta</strong>, University College London", "contact": "<a href=\"mailto:[email protected]\"><strong>Cornelia Bujenita</strong></a>, CECAM Events and Operations Manager", "is_internal": "False", "theme": "", "vulgarization": { "id": 2, "fr_label": "Public averti", "en_label": "Informed public" }, "registration": { "id": 1, "fr_label": "Sur inscription", "en_label": "Registration required" }, "keywords": "", "file": null, "icalendar_url": "https://memento.epfl.ch/event/export/119449/", "category": { "id": 1, "code": "CONF", "fr_label": "Conférences - Séminaires", "en_label": "Conferences - Seminars", "activated": true }, "academic_calendar_category": null, "domains": [], "mementos": [ "https://memento.epfl.ch/api/v1/mementos/1/?format=api", "https://memento.epfl.ch/api/v1/mementos/5/?format=api", "https://memento.epfl.ch/api/v1/mementos/6/?format=api", "https://memento.epfl.ch/api/v1/mementos/8/?format=api" ] }, { "id": 71147, "title": "RIOT Lecture Series: The Construction of Architecture. Clients, Contractors, and Capital, with Davide Spina", "slug": "riot-lecture-series-the-construction-of-architec-5", "event_url": "https://memento.epfl.ch/event/riot-lecture-series-the-construction-of-architec-5", "visual_url": "https://memento.epfl.ch/image/32519/200x112.jpg", "visual_large_url": "https://memento.epfl.ch/image/32519/720x405.jpg", "visual_maxsize_url": "https://memento.epfl.ch/image/32519/max-size.jpg", "lang": "en", "start_date": "2026-04-13", "end_date": "2026-04-13", "start_time": "14:30:00", "end_time": "16:00:00", "description": "<p>Who develops, finances, and commissions architecture—and in whose interest? This lecture series examines the often-invisible forces that shape architectural production—the clients who commission, the contractors who build, and the capital flows that determine what gets realized. While architects are trained to focus on design, the political economy of construction is largely absent from architectural education—sustaining a disciplinary insularity that obscures architecture's deep entanglement with capital, labor, and power. Yet building is fundamentally contingent: dependent on forces beyond the designer's reach, shaped by actors whose decisions constrain and enable architecture far more than design intentions. The series invites scholars and practitioners whose research illuminates these dependencies: the bureaucratization of architectural practice through corporate management systems, the client as a Mephistophelean figure key to the attainment of projects, the contractor as a decisive agent in determining how architecture is produced, and the entanglement of real estate development, finance, building, and urban form. By exposing the structural conditions of construction's political economy, we seek not to lament architecture's lack of autonomy but to work productively within its contingencies—essential groundwork for reimagining how practice might be organized otherwise.<br>\r\n<br>\r\nDavide Spina (University of Hong Kong, online) Spina's award-winning dissertation examined the Vatican-controlled real estate developer and contractor SGI (Società Generale Immobiliare), which emerged as a major force in postwar Italy's reconstruction. His research on what journalist Antonio Cederna called \"the Leviathan\" reveals how SGI coordinated 10,000 employees, bureaucratized architectural production, exploited planning regulations, and delivered schemes from residential developments to industrial infrastructure. Currently working on real estate development in 1960s-70s Hong Kong, Spina examines how developers and contractors shape architectural culture through corporate management systems.<br>\r\n </p>", "image_description": "", "creation_date": "2026-02-16T15:20:01", "last_modification_date": "2026-02-23T14:42:31", "link_label": "", "link_url": "", "canceled": "False", "cancel_reason": "", "place_and_room": "AAC 1 14", "url_place_and_room": "https://plan.epfl.ch/?room==AAC%201%2014", "url_online_room": "https://epfl.zoom.us/j/67118003322?pwd=Rxn0N5RNHdUNwg0HhBRkRZzWPm8UlX.1", "spoken_languages": [ "https://memento.epfl.ch/api/v1/spoken_languages/2/?format=api" ], "speaker": "Davide Spina ", "organizer": "RIOT ", "contact": "<a href=\"https://people.epfl.ch/elif.erez?lang=en\">Elif Erez Henderson</a> / <a href=\"https://people.epfl.ch/antoine.iweinsdeeckhoutte\">Antoine Iweins </a>/ <a href=\"https://people.epfl.ch/nathalie.marj\">Nathalie Marj</a> ", "is_internal": "False", "theme": "", "vulgarization": { "id": 2, "fr_label": "Public averti", "en_label": "Informed public" }, "registration": { "id": 3, "fr_label": "Entrée libre", "en_label": "Free" }, "keywords": "Architecture, Clients, Contractors, Capital", "file": null, "icalendar_url": "https://memento.epfl.ch/event/export/119744/", "category": { "id": 1, "code": "CONF", "fr_label": "Conférences - Séminaires", "en_label": "Conferences - Seminars", "activated": true }, "academic_calendar_category": null, "domains": [], "mementos": [ "https://memento.epfl.ch/api/v1/mementos/32/?format=api", "https://memento.epfl.ch/api/v1/mementos/1/?format=api", "https://memento.epfl.ch/api/v1/mementos/4/?format=api", "https://memento.epfl.ch/api/v1/mementos/6/?format=api" ] }, { "id": 71172, "title": "Anisotropic Inviscid Limit for the Navier-Stokes Equations with Transport Noise Between Two Plates", "slug": "anisotropic-inviscid-limit-for-the-navier-stokes-e", "event_url": "https://memento.epfl.ch/event/anisotropic-inviscid-limit-for-the-navier-stokes-e", "visual_url": "https://memento.epfl.ch/image/32540/200x112.jpg", "visual_large_url": "https://memento.epfl.ch/image/32540/720x405.jpg", "visual_maxsize_url": "https://memento.epfl.ch/image/32540/max-size.jpg", "lang": "en", "start_date": "2026-03-24", "end_date": "2026-05-25", "start_time": "16:30:00", "end_time": "17:30:00", "description": "<p>We investigate an anisotropic vanishing viscosity limit of the 3D stochastic Navier-Stokes equations posed between two horizontal plates, with Dirichlet no-slip boundary condition. The turbulent viscosity is split into horizontal and vertical directions, each of which approaches zero at a different rate. The underlying Cylindrical Brownian Motion driving our transport-stretching noise is decomposed into horizontal and vertical components, which are scaled by the square root of the respective directional viscosities. We prove that if the ratio of the vertical to horizontal viscosities approaches zero, then there exists a sequence of weak martingale solutions convergent to the strong solution of the deterministic Euler equation on its lifetime of existence. A particular challenge is that the anisotropic scaling ruins the divergence-free property for the spatial correlation functions of the noise.</p>", "image_description": "", "creation_date": "2026-02-18T12:59:24", "last_modification_date": "2026-03-22T19:58:56", "link_label": "Working-Reading Seminar", "link_url": "https://www.epfl.ch/labs/stoan/reading-working-seminar/", "canceled": "True", "cancel_reason": "", "place_and_room": "MA B2 485", "url_place_and_room": "", "url_online_room": "", "spoken_languages": [ "https://memento.epfl.ch/api/v1/spoken_languages/2/?format=api" ], "speaker": "Dr Daniel Goodair (EPFL)", "organizer": "<a href=\"https://people.epfl.ch/xue-mei.li\">Xue-Mei Li</a>", "contact": "<a href=\"https://people.epfl.ch/xue-mei.li\">Xue-Mei Li</a>", "is_internal": "False", "theme": "", "vulgarization": { "id": 3, "fr_label": "Expert", "en_label": "Expert" }, "registration": { "id": 3, "fr_label": "Entrée libre", "en_label": "Free" }, "keywords": "Working-Reading seminar, Probability, stochastic analysis", "file": null, "icalendar_url": "https://memento.epfl.ch/event/export/119781/", "category": { "id": 1, "code": "CONF", "fr_label": "Conférences - Séminaires", "en_label": "Conferences - Seminars", "activated": true }, "academic_calendar_category": null, "domains": [], "mementos": [ "https://memento.epfl.ch/api/v1/mementos/7/?format=api" ] }, { "id": 69803, "title": "Higher moments for the SHE in high dimensions and their phase transitions", "slug": "higher-moments-for-the-she-in-high-dimensions-and", "event_url": "https://memento.epfl.ch/event/higher-moments-for-the-she-in-high-dimensions-and", "visual_url": "https://memento.epfl.ch/image/31288/200x112.jpg", "visual_large_url": "https://memento.epfl.ch/image/31288/720x405.jpg", "visual_maxsize_url": "https://memento.epfl.ch/image/31288/max-size.jpg", "lang": "en", "start_date": "2026-04-14", "end_date": "2026-04-15", "start_time": "10:10:00", "end_time": "11:00:00", "description": "<p>We consider regularized versions of the stochastic heat equation (SHE) in high dimensions $d\\geq 3$ and analyze their higher moments in the limit as the regularization is removed, for varying coupling constants that describe the strength of the driving noise. Motivated by recent results on the higher moments of the SHE in two dimensions at $L^{2}$-criticality, a natural question is whether the higher moments of the SHE in high dimensions also converge at the $L^{2}$-critical point. Our main result gives a negative answer: in high dimensions, the higher moments diverge when the coupling constant belongs to a nontrivial right-closed interval whose upper endpoint is the $L^{2}$-critical point. In particular, we obtain a sharp bound for the critical coupling constant at which the corresponding limiting higher moment undergoes a phase transition. As an application to the continuous directed polymer, we derive a sharp estimate for quantity believed to be closely related to the tail probability of the limiting partition function.</p>", "image_description": "", "creation_date": "2025-09-12T13:47:07", "last_modification_date": "2026-03-30T15:59:29", "link_label": "Working-Reading Seminar", "link_url": "https://www.epfl.ch/labs/stoan/reading-working-seminar/", "canceled": "False", "cancel_reason": "", "place_and_room": "MA B2 485", "url_place_and_room": "", "url_online_room": "", "spoken_languages": [ "https://memento.epfl.ch/api/v1/spoken_languages/2/?format=api" ], "speaker": "Dr Te-Chun Wang (EPFL)", "organizer": " <a href=\"https://people.epfl.ch/xue-mei.li\">Xue-Mei Li</a>", "contact": "<a href=\"https://people.epfl.ch/xue-mei.li\">Xue-Mei Li</a>", "is_internal": "False", "theme": "", "vulgarization": { "id": 3, "fr_label": "Expert", "en_label": "Expert" }, "registration": { "id": 3, "fr_label": "Entrée libre", "en_label": "Free" }, "keywords": "Reading-Working Seminar", "file": null, "icalendar_url": "https://memento.epfl.ch/event/export/117635/", "category": { "id": 1, "code": "CONF", "fr_label": "Conférences - Séminaires", "en_label": "Conferences - Seminars", "activated": true }, "academic_calendar_category": null, "domains": [], "mementos": [ "https://memento.epfl.ch/api/v1/mementos/403/?format=api", "https://memento.epfl.ch/api/v1/mementos/7/?format=api" ] }, { "id": 71342, "title": "lunch&LEARN: AI for formative feedback. From effective tools to adoption", "slug": "lunchlearn-ai-for-formative-feedback-from-effectiv", "event_url": "https://memento.epfl.ch/event/lunchlearn-ai-for-formative-feedback-from-effectiv", "visual_url": "https://memento.epfl.ch/image/32696/200x112.jpg", "visual_large_url": "https://memento.epfl.ch/image/32696/720x405.jpg", "visual_maxsize_url": "https://memento.epfl.ch/image/32696/max-size.jpg", "lang": "en", "start_date": "2026-04-30", "end_date": "2026-04-30", "start_time": "12:15:00", "end_time": "13:00:00", "description": "<p>We can build the perfect pedagogical tool. But will students actually use and benefit from it?<br>\r\n<br>\r\nThis session explores a question at the heart of the integration of new technology into education: How can a well-designed pedagogical tool be ideally leveraged to truly make a difference in student learning?<br>\r\n<br>\r\n<a href=\"https://people.epfl.ch/fares.fawzi?lang=en\">Fares Fawzi</a> from the <a href=\"https://www.epfl.ch/labs/ml4ed/\">ML4ED</a> lab at EPFL will present his development of a GenAI-powered formative feedback tool that is pedagogically aligned, contextually grounded, and interactive.<br>\r\n<br>\r\nDeployed during an in-class session as well as for exam preparation in a computer science course at EPFL, the tool performed as intended: responses were relevant, accurate, and aligned with pedagogical frameworks for feedback delivery.<br>\r\n<br>\r\nHowever, during this session, we want to invite you to look beyond the pedagogical sophistication of the tool itself, and ask how integration context shapes student engagement and beneficial learning impact.<br>\r\n<br>\r\n- - - - - - - - - - - - - <br>\r\n<br>\r\n<em><strong>lunch&LEARN</strong></em> sessions are intended for anyone who teaches at EPFL. <br>\r\nThis session is hybrid and can be attended in person or <a href=\"https://epfl.zoom.us/meeting/register/itgbPQceSnyGQK_-KbEttA\">followed via zoom</a>.<br>\r\nMost sessions are recorded and can be found on the <a href=\"https://www.youtube.com/playlist?list=PLKZOhx3xKAdI81PA1jwBA_LHHfSjbdEUV\">Center LEARN's YouTube channel</a>.<br>\r\nTo get in touch with the team, to suggest a session or make inquiries, please send an email on <a href=\"mailto:[email protected]\">[email protected]</a></p>", "image_description": "lunch&LEARN flyer for Fares Fawzi's session", "creation_date": "2026-03-10T14:13:42", "last_modification_date": "2026-03-10T14:18:13", "link_label": "Register/access the zoom conference", "link_url": "https://epfl.zoom.us/meeting/register/itgbPQceSnyGQK_-KbEttA", "canceled": "False", "cancel_reason": "", "place_and_room": "ME A3 31", "url_place_and_room": "https://plan.epfl.ch/?room==ME%20A3%2031", "url_online_room": "https://epfl.zoom.us/meeting/register/itgbPQceSnyGQK_-KbEttA", "spoken_languages": [ "https://memento.epfl.ch/api/v1/spoken_languages/2/?format=api" ], "speaker": "<a href=\"https://people.epfl.ch/fares.fawzi?lang=en\">Fares Fawzi</a>, Machine Learning for Education Laboratory ", "organizer": "<a href=\"https://learn.epfl.ch\">Center LEARN</a>", "contact": "<a href=\"mailto:[email protected]\">[email protected]</a>", "is_internal": "True", "theme": "", "vulgarization": { "id": 2, "fr_label": "Public averti", "en_label": "Informed public" }, "registration": { "id": 1, "fr_label": "Sur inscription", "en_label": "Registration required" }, "keywords": "lunch&LEARN, Center LEARN, teaching, learning", "file": null, "icalendar_url": "https://memento.epfl.ch/event/export/120032/", "category": { "id": 1, "code": "CONF", "fr_label": "Conférences - Séminaires", "en_label": "Conferences - Seminars", "activated": true }, "academic_calendar_category": null, "domains": [], "mementos": [ "https://memento.epfl.ch/api/v1/mementos/416/?format=api", "https://memento.epfl.ch/api/v1/mementos/1/?format=api", "https://memento.epfl.ch/api/v1/mementos/323/?format=api", "https://memento.epfl.ch/api/v1/mementos/5/?format=api", "https://memento.epfl.ch/api/v1/mementos/6/?format=api", "https://memento.epfl.ch/api/v1/mementos/8/?format=api", "https://memento.epfl.ch/api/v1/mementos/85/?format=api", "https://memento.epfl.ch/api/v1/mementos/411/?format=api", "https://memento.epfl.ch/api/v1/mementos/27/?format=api", "https://memento.epfl.ch/api/v1/mementos/65/?format=api" ] }, { "id": 70582, "title": "Summer School on Numerical methods for Random Differential Models (NUMRAD) - June 2026", "slug": "summer-school-on-numerical-methods-for-random-diff", "event_url": "https://memento.epfl.ch/event/summer-school-on-numerical-methods-for-random-diff", "visual_url": "https://memento.epfl.ch/image/32025/200x112.jpg", "visual_large_url": "https://memento.epfl.ch/image/32025/720x405.jpg", "visual_maxsize_url": "https://memento.epfl.ch/image/32025/max-size.jpg", "lang": "en", "start_date": "2026-06-02", "end_date": "2026-06-05", "start_time": null, "end_time": null, "description": "<p>We are pleased to announce that the second edition of the Summer School on “Numerical methods for random differential models” (NUMRAD26), will take place at the Bernoulli Center at EPFL, Lausanne (CH), from June 2nd to 5th, 2026.<br>\r\n<br>\r\nThe summer school will cover both introductory and advanced topics on numerical methods in the following areas: high-dimensional approximation, Gaussian processes, reduced order modeling for scientific machine learning, and mathematical finance. The up-to-date program of the summer school can be found at<br>\r\nhttps://numrad.epfl.ch/scientific-program/<br>\r\n<br>\r\nThe school is addressed to young mathematicians (PhD students, early postdoc researchers, and highly motivated master students), and it will consist in lectures delivered by world-wide renowned experts. Participants will have the chance to share their research during a poster session. <br>\r\n<br>\r\nThere are no registration fees, but the number of participants is limited. You can apply to the summer school by submitting the application form by February 13th 2026 at:<br>\r\nhttps://numrad.epfl.ch/registration/<br>\r\nApplicants will be informed of the admission decision by email within three weeks after the application deadline.<br>\r\n<br>\r\nFor more details, please visit:<br>\r\nhttps://numrad.epfl.ch<br>\r\n<br>\r\nThe event is funded by the Bernoulli Center at EPFL, the EDOC EPFL, and by the CSQI Chair.<br>\r\n<br>\r\nLooking forward to seeing you in Lausanne next June!</p>", "image_description": "", "creation_date": "2025-12-02T02:50:24", "last_modification_date": "2025-12-02T02:50:24", "link_label": "Website", "link_url": "https://numrad.epfl.ch", "canceled": "False", "cancel_reason": "", "place_and_room": "", "url_place_and_room": "", "url_online_room": "", "spoken_languages": [ "https://memento.epfl.ch/api/v1/spoken_languages/2/?format=api" ], "speaker": "Confirmed:\r\n\r\n\r\n\tMark Girolami (<em>University of Cambridge, UK</em>)\r\n\tBenjamin Jourdain <em>(Ecole Nationale des Ponts et Chaussées, France)</em>\r\n\tMotonobu Kanagawa <em>(EURECOM, France)</em>\r\n\tAndrea Manzoni <em>(Politecnico di Milano, Italy)</em>\r\n\tAnthony Nouy <em>(Centrale Nantes – Nantes Université, France)</em>\r\n\tChristoph Reisinger <em>(University of Oxford, UK)</em>\r\n\tGianluigi Rozza (<em>SISSA, Italy</em>)\r\n\tAgnès Sulem <em>(Inria, MATHRISK, France)</em>\r\n\tOlivier Zahm <em>(Inria, Laboratoire Jean Kuntzmann, France)</em>\r\n", "organizer": "CSQI Chair", "contact": "CSQI Chair", "is_internal": "False", "theme": "", "vulgarization": { "id": 1, "fr_label": "Tout public", "en_label": "General public" }, "registration": { "id": 1, "fr_label": "Sur inscription", "en_label": "Registration required" }, "keywords": "", "file": null, "icalendar_url": "https://memento.epfl.ch/event/export/118868/", "category": { "id": 1, "code": "CONF", "fr_label": "Conférences - Séminaires", "en_label": "Conferences - Seminars", "activated": true }, "academic_calendar_category": null, "domains": [], "mementos": [ "https://memento.epfl.ch/api/v1/mementos/1/?format=api", "https://memento.epfl.ch/api/v1/mementos/5/?format=api", "https://memento.epfl.ch/api/v1/mementos/6/?format=api", "https://memento.epfl.ch/api/v1/mementos/7/?format=api", "https://memento.epfl.ch/api/v1/mementos/400/?format=api", "https://memento.epfl.ch/api/v1/mementos/246/?format=api", "https://memento.epfl.ch/api/v1/mementos/27/?format=api" ] }, { "id": 70692, "title": "SUPER SANDWICH SEMINAR", "slug": "super-sandwich-seminar-349", "event_url": "https://memento.epfl.ch/event/super-sandwich-seminar-349", "visual_url": "https://memento.epfl.ch/image/32112/200x112.jpg", "visual_large_url": "https://memento.epfl.ch/image/32112/720x405.jpg", "visual_maxsize_url": "https://memento.epfl.ch/image/32112/max-size.jpg", "lang": "en", "start_date": "2026-04-09", "end_date": "2026-04-09", "start_time": "12:00:00", "end_time": "13:00:00", "description": "<p>Triple S (Super Sandwich Seminar) will feature 3 speakers per week, each presenting for 15 minutes, followed by a 5 minutes Q&A session.</p>", "image_description": "", "creation_date": "2025-12-16T15:40:22", "last_modification_date": "2025-12-16T15:43:15", "link_label": "", "link_url": "", "canceled": "False", "cancel_reason": "", "place_and_room": "SV 1717", "url_place_and_room": "https://plan.epfl.ch/?room==SV%201717", "url_online_room": "", "spoken_languages": [ "https://memento.epfl.ch/api/v1/spoken_languages/2/?format=api" ], "speaker": "Anna Carla Farano -<em> Goemans Lab; </em>Romain Forey, <em>Trono Lab</em>; Angel Martinez, <em>Suter Lab</em>", "organizer": "Prof. Pierre Gönczy", "contact": "Lisa Smith, ISREC Administrative Assistant", "is_internal": "True", "theme": "", "vulgarization": { "id": 2, "fr_label": "Public averti", "en_label": "Informed public" }, "registration": { "id": 3, "fr_label": "Entrée libre", "en_label": "Free" }, "keywords": "Super Sandwich, cancer", "file": null, "icalendar_url": "https://memento.epfl.ch/event/export/119043/", "category": { "id": 1, "code": "CONF", "fr_label": "Conférences - Séminaires", "en_label": "Conferences - Seminars", "activated": true }, "academic_calendar_category": null, "domains": [], "mementos": [ "https://memento.epfl.ch/api/v1/mementos/1/?format=api", "https://memento.epfl.ch/api/v1/mementos/26/?format=api", "https://memento.epfl.ch/api/v1/mementos/9/?format=api", "https://memento.epfl.ch/api/v1/mementos/6/?format=api", "https://memento.epfl.ch/api/v1/mementos/111/?format=api" ] } ] }
