BEGIN:VCALENDAR VERSION:2.0 PRODID:-//Memento EPFL// BEGIN:VEVENT SUMMARY:IMX Talks - Design\, properties\, and applications of metal-contai ning soft materials: a brief survey in the realm of intermolecular interac tions DTSTART:20231117T131500 DTEND:20231117T141500 DTSTAMP:20260505T122637Z UID:8fc09b78f33bf8a54b6560cce4d2f0e7dc62f84f07c388003e8d97fa CATEGORIES:Conferences - Seminars DESCRIPTION:Prof. Alessandra Crispini\, General and Inorganic Chemistry at the Department of Chemistry and Chemical Technologies at the University o f Calabria\, Italy\nSoft biomaterials\, which include liquids\, colloids\, polymers\, foams\, gels and liquid crystals\, are able to interact with b iological systems\, due to the similarity of their properties\, with demon strated applications in various medical devices\, implants\, drug delivery systems\, tissue engineering\, and regenerative medicine. Liquid crystals represent the most attractive soft matter systems\, being outstanding exa mples of spontaneous self-assembly of soft building blocks though intermol ecular interactions\, with the generation of a fragile balance between ent ropic and enthalpic contributions to the free energy. The first part of th is talk will be devoted to the significant progresses made in the field of liquid crystals based on metal complexes (metallomesogens)\, modulating f actors such as nano-segregation\, molecular motifs functional to specific intermolecular interactions and molecular shapes. Transition metal complex es can organize themselves generating mesophases (liquid crystalline phase s) closely related to the shape of the single molecules and to the supramo lecular organization governed by many different types of intermolecular in teractions (hydrophilic/hydrophobic/metallophilic interactions\, π-π sta ckings\, hydrogen-bonds….). A short library of unconventionally shaped m etal complexes with ordered supramolecular organization in mesophases will be illustrated\, showing that the design and the modulation of the molecu lar shape (by changing the metal ions and the organic ligands) and non-cov alent interactions (by changing substituents on the molecular organic frag ments) are the key for the generation of different properties. Along the s econd part of the talk\, the modification of the molecular shape of metal complexes and the organic ligands surrounding the central metal ions\, pre viously seen at work in the modulation of liquid crystalline properties\, will be exposed for their biological properties and their interactions wit h biopolymers when used as active ingredients in the preparation of coatin g materials. In particular\, the formation of biopolymer thin films incorp orating metal-based additives can be a versatile tool to prepare new activ e packaging materials. Conjugation and/or embedding of metal complexes\, w ithout chemical modifications of the natural biopolymers\, can be modulate d by varying the chemical and structural features of the metal-based addit ives in relation to the chosen biopolymer.\nCrispini\, A.\, Aiello\, I.\; Godbert\, N.\; Ghedini\, M.\; La Deda\, M.\, Liquid Crystals: Role of Tran sition Metal Ions in the Design of Metallomesogens. In Comprehensive Coord ination Chemistry III\; Constable\, E. C.\, Parkin\, G.\, Que Jr\, L.\, Ed s.\, Vol. 7\, Elsevier\, 2021\; pp 241–313\; https://dx.doi.org/10.1016/ B978-0-08-102688-5.00122-7\; ISBN: 9780081026885\nPolicastro\, D.\, Giorno \, E.\, Scarpelli\, F.\, Godbert\, N.\, Ricciardi\, L.\, Crispini\, A.\, C andreva\, A.\, Marchetti\, F.\, Xhafa\, S.\, De Rose\, R.\, Nucera\, A.\, Barberi\, R. C.\, Castriota\, M.\, De Bartolo\, L.\, & Aiello\, I. (2022). New Zinc-Based Active Chitosan Films: Physicochemical Characterization\, Antioxidant\, and Antimicrobial Properties. Frontiers in Chemistry\, 10\, 1–16. https://doi.org/10.3389/fchem.2022.884059\nBio: Prof. Alessandra C rispini is full Professor of General and Inorganic Chemistry at the Depart ment of Chemistry and Chemical Technologies at the University of Calabria. Head of the Department of Chemistry and Chemical Technologies of the Univ ersity of Calabria from November 2015 until October 2021. Responsible of I norganic Molecular Materials Research Laboratory based in the Department o f Chemistry and Chemical Technologies of the University of Calabria. The r esearch activity of Prof. Alessandra Crispini started with the molecular s tructure determination using X-ray diffraction techniques of inorganic an d coordination compounds. Nowadays the crystallography background is final ized on the knowledge of the molecular structures and supramolecular organ ization in inorganic and metalorganic materials in the definition of the s tructure/property’s relationships. In this field the research work has b een devoted towards the studies of the intermolecular interaction within b oth the crystalline solid state and liquid crystalline aggregation of pro- mesogenic molecular materials. From this point of view\, the engineering a nd the synthesis of new metal containing materials has been supported by t he deep analysis of the supramolecular organization of the pro-mesogenic m olecules starting from their aggregation at room temperature in their crys talline solid state. The structural characterization has been performed by the use of X ray diffraction analysis using both conventional Diffraction apparatus and by the use of synchrotron source (European Synchrotron Radi ation Facility\, Grenoble\, France (ESRF) BM 16 CRG beamline).  All the s ubsequent characterization within the soft aggregation state (mono e bi-di mensional architectures) has been conducted by the use of X ray powder dif fraction technique at variable temperature.\n  LOCATION:MXF 312 https://plan.epfl.ch/?room==MXF%20312 STATUS:CONFIRMED END:VEVENT END:VCALENDAR