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TZID:Europe/Paris
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DTSTART:20250330T010000
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BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260224T183000
DTEND;TZID=Europe/Paris:20260224T183000
DTSTAMP:20260222T090042Z
CREATED:20260222T085804Z
LAST-MODIFIED:20260222T090042Z
UID:10000072-1771957800-1771957800@sfp-alpes.fr
SUMMARY:Sophie Abby (TIMC\, Grenoble)
DESCRIPTION:Le premier souffle : comment les microbes ont oxygéné la Terre\nRésumé :  \nCette soirée explore la diversité du vivant à travers l’arbre phylogénétique\, en s’appuyant sur les travaux du projet Quinevol qui étudie les quinones\, molécules essentielles présentes dans tous les organismes vivants. Comment les organismes primitifs respiraient-ils avant l’apparition de l’oxygène ? Comment se sont-ils ensuite adaptés à ce qui était alors un véritable poison ? Un voyage scientifique des origines de la vie jusqu’aux frontières de la recherche actuelle. \n 
URL:https://sfp-alpes.fr/event/sophie-abby-timc-grenoble/
LOCATION:Museum de Grenoble\, 1 Rue Dolomieu\, Grenoble\, 38000\, France
CATEGORIES:Séminaire
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260226T130000
DTEND;TZID=Europe/Paris:20260226T140000
DTSTAMP:20260213T084606Z
CREATED:20260130T162946Z
LAST-MODIFIED:20260213T084606Z
UID:10000050-1772110800-1772114400@sfp-alpes.fr
SUMMARY:Céline SCORNAVACCA (ISEM – Montpellier)
DESCRIPTION:A New Algorithm for Computing the Likelihood of a Phylogeny\nContact : lucie.lamothe@univ-grenoble-alpes.fr
URL:https://sfp-alpes.fr/event/celine-scornavacca-isem-montpellier/
LOCATION:IMAG – Salle de Réunion\, 150 place du Torrent\, St Martin d’Hères\, 38400\, France
CATEGORIES:Séminaire
ORGANIZER;CN="TIMC - IMAG":MAILTO:lucie.lamothe@univ-grenoble-alpes.fr
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260226T140000
DTEND;TZID=Europe/Paris:20260226T150000
DTSTAMP:20260130T101624Z
CREATED:20260130T101313Z
LAST-MODIFIED:20260130T101624Z
UID:10000044-1772114400-1772118000@sfp-alpes.fr
SUMMARY:Rolf LORTZ (CNRS-LNCMI\, Grenoble)
DESCRIPTION:High temperatures superconductivity with giant pressure effect in 3D networks of boron doped ultra-thin carbon nanotubes in the pores of ZSM-5 zeolite\nRésumé : \nWe report the fabrication of three‑dimensional\, interconnected networks of ultrathin carbon nanotubes (CNTs) embedded within the ~5 Å pores of zeolite ZSM‑5 crystals using a controlled chemical vapour deposition (CVD) process. Confinement within these sub‑nanometre channels yields CNTs with strongly one‑dimensional electronic characteristics\, including pronounced van Hove singularities in the density of states. By introducing boron dopants during growth\, we strategically tune the Fermi level toward a van Hove singularity\, as supported by ab initio electronic‑structure calculations. This electronic tuning\, combined with the intrinsic 3D connectivity of the CNT–zeolite framework\, enables a dimensional crossover from 1D electronic states to a phase‑coherent\, bulk superconducting state.\nTo establish the presence of superconductivity\, we employ five complementary experimental probes—electrical resistivity\, ac susceptibility\, dc magnetization\, specific heat\, and point‑contact spectroscopy. All measurements consistently indicate a superconducting transition at ambient pressure with a critical temperature Tc in the range of 220–250 K. Simultaneous resistivity and ac‑susceptibility measurements reveal a three‑order‑of‑magnitude drop in resistance accompanied by the onset of a robust Meissner effect with nearly perfect diamagnetic screening. Point‑contact spectroscopy further uncovers a multigap superconducting state\, with a dominant gap of approximately 30 meV\, in reasonable agreement with expectations from Bardeen–Cooper–Schrieffer (BCS) theory. The differential conductance spectra exhibit clear particle–hole symmetry and evolve smoothly between the tunnelling and Andreev reflection regimes as the contact transparency is varied—behaviour uniquely characteristic of superconducting quasiparticles. Specific‑heat measurements show a distinct anomaly at the transition\, reminiscent of signatures observed in high‑Tc cuprate superconductors.\nFinally\, we find that the application of very modest external pressure further enhances the superconducting transition temperature\, pushing Tc above ambient temperature and suggesting that the system remains far from its optimal tuning point. These results collectively point to a new pathway for achieving high‑temperature superconductivity in engineered low‑dimensional carbon‑based materials. \nContact : florence.levy-bertrand@neel.cnrs.fr
URL:https://sfp-alpes.fr/event/rolf-lortz-cnrs-lncmi-grenoble/
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:20260226T140000
DTEND;TZID=Europe/Paris:20260226T150000
DTSTAMP:20260130T102010Z
CREATED:20260130T095731Z
LAST-MODIFIED:20260130T102010Z
UID:10000043-1772114400-1772118000@sfp-alpes.fr
SUMMARY:Paulo Henrique MACIEL BUZZETTI (Département de Chimie Moléculaire\, équipe I2BM (nouvel entrant))
DESCRIPTION:From Bio-analytics & Bio-energy : A Journey Through Functional Interfaces & Supramolecular Architectures\nContact : quentin.laurent@univ-grenoble-alpes.fr 
URL:https://sfp-alpes.fr/event/paulo-henrique-maciel-buzzetti-departement-de-chimie-moleculaire-equipe-i2bm-nouvel-entrant/
LOCATION:DCM – Salle C209\, DCM - Bât Chimie Recherche 301 rue de la Chimie\, St Martin d'Hères\, 38400\, France
CATEGORIES:Séminaire
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260227T110000
DTEND;TZID=Europe/Paris:20260227T120000
DTSTAMP:20260130T142401Z
CREATED:20260129T163105Z
LAST-MODIFIED:20260130T142401Z
UID:10000041-1772190000-1772193600@sfp-alpes.fr
SUMMARY:Jean-Francois COLLET (Institut de Duve\, Bruxelles)
DESCRIPTION:How (and Why) do Gram-Negative Bacteria build an Outer Membrane\nRésumé :  \nGram-negative bacteria are defined by a complex cell envelope in which the outer membrane plays a central role in protection\, nutrient exchange\, and antibiotic resistance. This asymmetric lipid bilayer forms a robust permeability barrier\, yet its biogenesis presents a striking challenge : all outer membrane components are synthesized in the cytoplasm or at the inner membrane and must be transported and assembled across the periplasm without direct energy input. In this talk\, I will discuss how Gram-negative bacteria build their outer membrane and why this process is essential for cellular physiology. I will introduce the major pathways responsible for outer membrane assembly and highlight how their activities need to be coordinated to maintain envelope integrity. I will also present recent work showing that the outer membrane is not merely a passive barrier\, but a mechanically active structure that enables the buildup of periplasmic pressure\, a property critical for envelope stability and bacterial survival. Together\, these findings underscore the outer membrane as a dynamic\, multifunctional organelle and a promising target for future antibacterial strategies. \nContact : ibs.seminaires@ibs.fr
URL:https://sfp-alpes.fr/event/jean-francois-collet-institut-de-duve-bruxelles/
LOCATION:IBS – Salle des séminaires\, IBS 71 avenue des Martyrs\, Grenoble\, 38042\, France
CATEGORIES:Séminaire
ORGANIZER;CN="IBS":MAILTO:ibs.seminaires@ibs
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260302T110000
DTEND;TZID=Europe/Paris:20260302T120000
DTSTAMP:20260227T102040Z
CREATED:20260227T102022Z
LAST-MODIFIED:20260227T102040Z
UID:10000083-1772449200-1772452800@sfp-alpes.fr
SUMMARY:Matteo MILANI (ESPCI Paris)
DESCRIPTION:Rheofluidics: single-drop oscillatory rheology with microfluidics\nRésumé : \nThe measurement of frequency-dependent viscoelastic moduli is of paramount importance in many fields\, from material science to biology\, and is typically accomplished in bulk materials using commercial rheometers. The trend towards miniaturization in the biotechnology\, manufacturing and chemical processing industries has motivated the extension of viscoelastic measurements to microscopic objects with well-defined shape and size such as droplets\, vesicles\, microcapsules\, or even single cells. For instance\, local mechanical probes such as AFM nanoindentation can be used to probe single-cell stiffness\, and micropipette aspiration probes the interfacial properties of droplets and vesicles. Despite their versatility\, these techniques are characterized by complex deformation geometries and a relatively low throughput\, which makes them unfit to sample highly heterogeneous populations such as those typical of biological samples. To this end\, novel microfluidic approaches have been recently developed to measure the stiffness of cells and droplets flowing through narrow channels. These approaches are well-suited for applications requiring a high throughput\, but they lack the fine control of stress and strain required by quantitative mechanical measurements. Here\, we present a novel technique called Rheofluidics\, which combines the high throughput of microfluidics with the versatility of traditional rheological probes. Like a stress-controlled rheometer\, Rheofluidics measures the time-dependent deformation of droplets subject to a well-defined hydrodynamic stress\, whose time evolution is controlled by the shape of the microfluidic channel in which the droplets are flowing. To validate this approach and to demonstrate the power of this technique\, we study the linear and nonlinear rheology of oil droplets\, hydrogel beads and lipid vesicles\, extracting their viscoelastic properties with a throughput more than 1000 times higher than that of standard rheology. \nContact : gwennou.coupier@univ-grenoble-alpes.fr
URL:https://sfp-alpes.fr/event/matteo-milani-espci-paris/
LOCATION:LiPhy\, Salle de Conférence\, 140 rue de la Physique\, St Martin d'Hères\, 38400
CATEGORIES:Séminaire
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260302T110000
DTEND;TZID=Europe/Paris:20260302T120000
DTSTAMP:20260227T094814Z
CREATED:20260227T094612Z
LAST-MODIFIED:20260227T094814Z
UID:10000077-1772449200-1772452800@sfp-alpes.fr
SUMMARY:Moritz SENGER (Université d’Uppsala\, Département de chimie pour les sciences de la vie\, Suède)
DESCRIPTION:From Catalysis to Sensing : Proton Transfer in [FeFe]-hydrogenases\nRésumé : \nEnzymes are natures catalysts enabling challenging reactions at ambient conditions and at low overpotentials. In particular\, [FeFe]-hydrogenases which catalyse bidirectional H2 turnover (2e- + 2H+ <-> H2) at high turnover numbers raise interest for their application in a green hydrogen economy. In [FeFe]-hydrogenases catalysis takes place at a unique diiron cofactor that is equipped with carbon monoxide (CO) and cyanide (CN) ligands. They serve as intrinsic infrared active probes sensitive to redox changes located directly at the centre of the catalytic reaction. This in isolation inactive di-iron cofactor becomes efficient H2 catalyst when incorporated into the [FeFe]-hydrogenase protein scaffold. More recently H2 sensing [FeFe]-hydrogenases have been characterised using the identical cofactor but for H2 sensing. The fundamental design principles of the protein scaffolds to selectively tune cofactor function either to efficient H2 catalyst or to H2 sensor remain unknown.Here we use organic dyes to artificially activate catalytic [1-2] and sensory [3-5] [FeFe]-hydrogenases photochemically and investigate them via in situ ATR-FTIR spectroscopy. Following changes of the cofactor CO and CN ligands\, single carboxylic acid residues and collective amide I modes\, we show that protein scaffold differences are not limited to the cofactor second coordination sphere but extend through the whole protein via proton transfer pathways\, secondary structure changes and most likely dimerization events. More general\, our results give a first idea how protein scaffolds can tune cofactor functions. \nReferences :[1] M. Senger\, V. Eichmann\, K. Laun\, J. Duan\, F. Wittkamp\, G. Knor\, U. P. Apfel\, T. Happe\, M. Winkler\, J. Heberle and S. T. Stripp*J Am Chem Soc\, 2019\, 141\, 17394-17403.[2] M. Lorenzi\, M. T. Gamache\, H. J. Redman\, H. Land\, M. Senger* and G. Berggren*ACS Sustain Chem Eng\, 2022\, 10\, 10760-10767.[3] I. Voloshyn\, C. Schumann\, P. R. Cabotaje\, A. Zamader\, H. Land and M. Senger*Chem Commun (Camb)\, 2024\, 60\, 10914-10917[4] M. Senger*\, C. Schumann\, P. R. Cabotaje\, A. Zamader\, P. Huang\, H. Land and G. Berggren*Phys Chem Chem Phys\, 2025\, 27 (18)\, 9864-9875 [5] Cabotaje\, P. R. ; Sekretareva\, A. ; Senger\, M. ; Huang\, P. ; Walter\, K. ; Redman\, H. J. ; Croy\, N. ; Stripp\, S. T. ; Land\, H. ; Berggren\, G.J Am Chem Soc 2025\, 147 (5)\, 4654-4666. \nContact : ibs.seminaires@ibs.fr
URL:https://sfp-alpes.fr/event/moritz-senger-universite-duppsala-departement-de-chimie-pour-les-sciences-de-la-vie-suede/
LOCATION:IBS – Salle des séminaires\, IBS 71 avenue des Martyrs\, Grenoble\, 38042\, France
CATEGORIES:Séminaire
ORGANIZER;CN="IBS":MAILTO:ibs.seminaires@ibs
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260302T140000
DTEND;TZID=Europe/Paris:20260302T150000
DTSTAMP:20260206T095958Z
CREATED:20260206T095950Z
LAST-MODIFIED:20260206T095958Z
UID:10000056-1772460000-1772463600@sfp-alpes.fr
SUMMARY:Ran TAO  (Institut Néel)
DESCRIPTION:Magnetic excitations in LuFe2Ge2\nRésumé : \nThe iron-based superconductor YFe2Ge2 (Tc ~ 1.8 K)[1] has attracted interest due to strong electronic correlations[2] and shows enhanced magnetic fluctuations in neutron scattering[3]. Its isoelectronic and isostructural sister compound LuFe2Ge2 orders antiferromagnetically below TN ~ 6.8 K\, and in clean crystals shows a resistive superconducting transition below 1 K. We present recent inelastic neutron scattering experiments on LuFe2Ge2 in the ordered and paramagnetic phases. The excitations are modelled with linear spin wave theory\, and we note some similarities to previous results in paramagnetic YFe2Ge2. \n[1] J. Chen et al.\, Phys. Rev. Lett. 125\, 237002 (2020).\n[2] J. Baglo et al. Phys. Rev. Lett. 129\, 046402 (2022). B. Xu et al.\, Proc. Natl. Acad. Sci. U. S. A. 121\, e2401430121 (2024).\n[3] H. Wo et al.\, Phys. Rev. Lett. 122\, 217003 (2019). \n_ \nContact : andrew.fefferman@neel.cnrs.fr
URL:https://sfp-alpes.fr/event/ran-tao-institut-neel/
LOCATION:CNRS – Salle Louis Weil (E424)\, CNRS - Institut Néel 25 avenue des Martyrs\, Grenoble\, 38042\, France
CATEGORIES:Séminaire
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260303T140000
DTEND;TZID=Europe/Paris:20260303T140000
DTSTAMP:20260227T153207Z
CREATED:20260227T153207Z
LAST-MODIFIED:20260227T153207Z
UID:10000089-1772546400-1772546400@sfp-alpes.fr
SUMMARY:Marco MACCARINI (chercheur UGA)
DESCRIPTION:Exploring the Nanostructure of Biomimetic Membranes\nRésumé : \nModel lipid membranes are simplified yet powerful systems that mimic key features of biological plasma membranes—the essential envelopes that define and protect living cells. Their controlled simplicity makes them ideal for precise experimental techniques\, enabling us to explore their interactions with novel nanoengineered materials. \nWhen combined with biological components like proteins\, these membranes not only deepen our understanding of fundamental biological processes but also serve as building blocks for advanced nanoengineered materials with tailored technological applications. \nIn this seminar\, I will present examples from my research\, where laboratory techniques\, large-scale facility analyses\, and computational methods converge to provide in-depth characterization and mechanistic insights into membrane behavior. These findings hold significant potential for advancements in health\, biotechnology\, and fundamental biology. \nShort Bio/CV\nAs  a CNRS Chargé de Recherche\, I’ve recently joined the LMGP to continue my research journey in this scientific new environment. My academic path has taken me across borders—starting with a Physics degree in Italy\, followed by a PhD in Polymer Physics in England\, and postdoctoral experiences in Germany and Canada. Along the way\, I’ve had the privilege of working at world-class facilities like the Institut Laue Langevin\, where I deepened my expertise in large-scale scientific infrastructure. I now continue this work at LMGP\, where my research focuses on the intersection of physics\, materials science\, and biomimetic systems. \nContact : deborah.verger@grenoble-inp.fr
URL:https://sfp-alpes.fr/event/marco-maccarini-chercheur-uga/
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
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260303T183000
DTEND;TZID=Europe/Paris:20260303T203000
DTSTAMP:20260212T165934Z
CREATED:20260212T165924Z
LAST-MODIFIED:20260212T165934Z
UID:10000061-1772562600-1772569800@sfp-alpes.fr
SUMMARY:Carlyne BERTHOT (docteure en sociologie)\, Michael DECRESSAC (neuroscientifique spécialiste du vieillissement cérébral) & Gaëtan GAVAZZI (spécialiste en gériatrie)
DESCRIPTION:Vieillissement : pas de limites ? \nRésumé : \nDepuis 1950\, l’espérance de vie à la naissance en France a progressé de plus de 16 années\, en raison en particulier de la diminution de la mortalité infantile. Parallèlement le nombre de centenaires a lui aussi considérablement augmenté dans notre pays mais qu’en est-il de la longévité de l’espèce humaine? En effet\, si l’on mettait de côté tous les paramètres environnementaux\, les maladies chroniques ou autres accidents de la vie qui accélèrent le vieillissement\, combien de temps pourrait-on vivre exactement ? Alors que de nombreux scientifiques pensent que la longévité humaine serait limitée à 120 ans\, d’autres suggèrent qu’il n’y a pas de limites formelles à la longévité\, en particulier grâce au développement des connaissances et des technologies.  \nMais jusqu’où pourra-t-on aller ? L’immortalité est-elle possible ? Notre société est-elle à même d’affronter les conséquences sociétales et démographiques sans parler des coûts d’un allongement sans fin de notre longévité ? \nPlus d’informations : www.echosciences-grenoble.fr/cafesciences \nContact : cafe@cafesciencegrenoble.fr \n 
URL:https://sfp-alpes.fr/event/carlyne-berthot-docteure-en-sociologie-michael-decressac-neuroscientifique-specialiste-du-vieillissement-cerebral-gaetan-gavazzi-specialiste-en-geriatrie/
LOCATION:Café des Arts\, 36\, rue St Laurent\, Grenoble\, 38000\, France
CATEGORIES:Conférence
END:VEVENT
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