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DTSTART;TZID=Europe/Paris:20261110T110000
DTEND;TZID=Europe/Paris:20261110T120000
DTSTAMP:20261104T204118Z
CREATED:20261104T204032Z
LAST-MODIFIED:20261104T204118Z
UID:10000348-1794308400-1794312000@sfp-alpes.fr
SUMMARY:Alexandra COLIN (IRIG\, CEA\, Grenoble\, France)
DESCRIPTION:Dynamics and  scaling of competitive actin architectures\nRésumé : \nCells constantly experience environmental changes requiring a fast adaptation of their different actin structures. However\, the mechanisms governing the size and dynamics of these multiple actin structures remain unknown. Decoupling the various parameters that would provide a complete understanding of these mechanisms is very complicated in a cellular context. This is why we have developed a bottom-up approach to identify the key molecular mechanisms that determine the size and coexistence of multiple competing actin architectures. We used a reconstituted system consisting of purified proteins and substrates to localize actin polymerization in microwells\, enabling us to work with a limited number of components. With this system\, we reconstituted several dynamic actin architectures\, competing for a limited pool of protein\, over a period of multiple hours. This allowed us to gain key insights into physiological functions related to actin turnover. I will show how we used this system to study the limits of scaling in dynamic structures\, as well as the limits of coexistence in actin networks under resource-limited conditions. Finally\, I will show how we can recapitulate these results in a complementary cellular system\, in which we have demonstrated that an increase in spreading area leads to a decrease in overall turnover\, due to a predominance of structures with low turnover. \n_ \nContact : olivier.destaing@univ-grenoble-alpes.fr
URL:https://sfp-alpes.fr/event/alexandra-colin-irig-cea-grenoble-france/
LOCATION:IAB – Salle de séminaire\, IAB Site Santé - Allée des Alpes\, La Tronche\, 38700\, France
CATEGORIES:Séminaire
ORGANIZER;CN="IAB":MAILTO:appaixfl@univ-grenoble-alpes.fr
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BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20261110T140000
DTEND;TZID=Europe/Paris:20261110T150000
DTSTAMP:20261101T223942Z
CREATED:20261101T223658Z
LAST-MODIFIED:20261101T223942Z
UID:10000328-1794319200-1794322800@sfp-alpes.fr
SUMMARY:Ivan AMELIO (Unversity of Ghent)
DESCRIPTION:Quantum simulation with Fluxonium Qutrit Arrays\nRésumé : \nFluxonium superconducting circuits were originally proposed to realize highly coherent qubits. In this talk\, we explain how these circuits can be used to implement and harness qutrits\, by tuning their energy levels and matrix elements via an external flux bias. In particular\, we investigate arrays of fluxonium qutrits\, and their potential for the quantum simulation of exotic quantum matter. We identify different operational regimes\, classified according to the plasmon-like versus fluxon-like nature of the qutrit excitations. Highly tunable on-site interactions are complemented by correlated single-particle hopping\, pair hopping and non-local interactions\, which naturally emerge and have different weights in the different regimes. We investigate the rich ground-state phase diagram of qutrit arrays and propose practical dynamical experiments to probe the different regimes. Future directions towards analogue simulation of exotic quantum matter are presented. \n_ \nContact : equipe-seminaires-nano@listes.grenoble.cnrs.fr
URL:https://sfp-alpes.fr/event/ivan-amelio-unversity-of-ghent/
LOCATION:CNRS – Salle Rémy Lemaire (K223)\, CNRS - Institut Néel 25 avenue des Martyrs\, Grenoble\, 38042\, France
CATEGORIES:Séminaire
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20261110T140000
DTEND;TZID=Europe/Paris:20261110T150000
DTSTAMP:20261102T230313Z
CREATED:20261102T230313Z
LAST-MODIFIED:20261102T230313Z
UID:10000340-1794319200-1794322800@sfp-alpes.fr
SUMMARY:Francisco YUBERO (Instituto de Ciencia de Materiales de Sevilla (CSIC – Univ. Sevilla)\, Spain)
DESCRIPTION:Porous thin film technology @ ICMS\nRésumé : \nIn this presentation\, I will show a survey of technical and scientific developments of our research group in the last years at the Institute of Materials Science of Seville. I will share our experience growing porous and compact thin films by physical vapor deposition methods\, as well as their performance in a variety of technological applications such as ophthalmic and electrochromic coatings\, dichroic filters\, scintillators\, optofluidic and electrochemical sensors or electrodes for solid oxide fuel cells or water electrolysers.  Thus\, for example\, I will address some studies related to proof of concept experiences to show enhanced absorption of dye solutions in porous Bragg microcavities or the development of refractometric liquid and vapor sensing transducers based on porous multilayers fabricated by glancing angle deposition approach.  I will also share our latest work on catalysts for green hydrogen production in anion exchange membrane water electrolysis\, as well as\, results on the scaling up of our technology for devices with sizes relevant for industrial implementation. \nShort Bio/CV \nPhD In this presentation\, I will show a survey of technical and scientific developments of our research group in the last years at the Institute of Materials Science of Seville. I will share our experience growing porous and compact thin films by physical vapor deposition methods\, as well as their performance in a variety of technological applications such as ophthalmic and electrochromic coatings\, dichroic filters\, scintillators\, optofluidic and electrochemical sensors or electrodes for solid oxide fuel cells or water electrolysers.  Thus\, for example\, I will address some studies related to proof of concept experiences to show enhanced absorption of dye solutions in porous Bragg microcavities or the development of refractometric liquid and vapor sensing transducers based on porous multilayers fabricated by glancing angle deposition approach.  I will also share our latest work on catalysts for green hydrogen production in anion exchange membrane water electrolysis\, as well as\, results on the scaling up of our technology for devices with sizes relevant for industrial implementation. \n_ \nContact : deborah.verger@grenoble-inp.fr
URL:https://sfp-alpes.fr/event/francisco-yubero-instituto-de-ciencia-de-materiales-de-sevilla-csic-univ-sevilla-spain/
LOCATION:LMGP – salle des séminaires\, Grenoble INP -Phelma 3 parvis Louis Néel\, Grenoble\, 38054\, France
CATEGORIES:Séminaire
ORGANIZER;CN="LMGP":MAILTO:deborah.verger@grenoble-inp.fr
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