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SUMMARY:MechE Colloquium: Motile unicellular organisms and morphing struct
 ures
DTSTART:20220503T120000
DTEND:20220503T130000
DTSTAMP:20260506T124204Z
UID:d56b720d292cfb35b089c36a58720edc2c7fe74bca9b95fd586060e3
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Antonio De Simone\, The Biorobotics Institute\, Scuola S
 uperiore Sant'Anna\, Pisa\, and MathLab\, SISSA\, Trieste\nFace masks are 
 recommended for in-person attendance in MED 0 1418.\n\nAbstract:\nLocomoti
 on strategies employed by unicellular organism are a rich source of inspir
 ation for studying mechanisms for shape control. Unicellular organisms are
  invisible to the naked eye\, and offer surprising new solutions to the qu
 estion of how shape can be controlled. In turn\, these unusual shape chang
 ing strategies may inspire novel solutions in fields such as mechanical me
 ta-materials\, robotics (in particular\, micro-robotics and soft robotics)
 \, biomedical engineering\, and deployable structures.\n\nIn recent years\
 , we have studied locomotion and shape control in Euglena gracilis using a
  broad range of tools ranging from theoretical and computational mechanics
 \, to experiment and observations at the microscope\, to manufacturing of 
 prototypes. This unicellular protist is particularly intriguing because it
  can adopt different motility strategies: swimming by flagellar propulsion
 \, or crawling thanks to large amplitude shape changes of the whole body (
 a behavior known as metaboly). We will survey our most recent findings [1
 –6] within this stream of research. Possible applications to engineered 
 devices exploiting advanced manufacturing techniques will also be discusse
 d.\n\nReferences\n[1] A. DeSimone\, Cell motility and locomotion by shape 
 control. In: The Mathematics of Mechanobiology\, Springer Lecture Notes in
  Mathematics vol. 2260\, Chapter 1\, pp. 1-41 (2020).\n[2] G. Cicconofri\,
  G. Noselli\, A. DeSimone: “The biomechanical role of extra-axonemal str
 uctures in shaping the flagellar beat of Euglena gracilis”\, eLife 10:e5
 8610\,  DOI: 10.7554/eLife.58610 (2021).\n[3] T. Gao\, E. Siefert\, A. De
 Simone\, B. Roman: Shape programming by modulating actuation over hierarch
 ical length scales. Advanced Materials\, 32(47)\, 2004515 (2020).\n[4] G\,
  Noselli\, A. Beran\, M. Arroyo\, A. DeSimone: “Swimming Euglena respond
  to confinement with a behavioural change enabling effective crawling”\,
  Nature Physics 15(5)\, 496-502\, (2019).\n[5] M. Rossi\, G. Cicconofri\, 
 A. Beran\, G. Noselli\, A. DeSimone:  “Kinematics of flagellar swimming
  in Euglena gracilis: helical trajectories and flagellar shapes” Proceed
 ings of the National Academy of Sciences USA 114(50)\, 13085-13090 (2017).
 \n[6] M. Arroyo\, A. DeSimone: Shape control of active surfaces inspired b
 y the movement of euglenids. J. Mech Phys Solids 62\, 99–112 (2014)\n\nB
 io: Antonio De Simone is professor of Scienza delle Costruzioni (Mechanics
  of Solids and Structures) at The BioRobotic Institute of Scuola Superiore
  Sant’Anna (Pisa) and at SISSA-International School for Advanced Studies
  (Trieste) within the laboratory for Applied Mathematics “MathLab” tha
 t he founded in 2010. His research interests are on the mechanics and mult
 i-physics of advanced materials\, of soft and biological matter\, on morph
 ing and shape-control\, and on mechanobiology (in particular: biological a
 nd bio-inspired motility). On these topics he has published extensively an
 d across disciplinary boundaries\, contributing to specialist journals cov
 ering a broad range of disciplines from mathematics to biophysics to engin
 eering. He is a EUROMECH Fellow since 2015.
LOCATION:MED 0 1418 https://plan.epfl.ch/?room==MED%200%201418 https://epf
 l.zoom.us/j/67275071152
STATUS:CONFIRMED
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