BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Chimie ParisTech - PSL - ECPv6.17.5//NONSGML v1.0//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-ORIGINAL-URL:https://www.chimieparistech.psl.eu
X-WR-CALDESC:Évènements pour Chimie ParisTech - PSL
REFRESH-INTERVAL;VALUE=DURATION:PT1H
X-Robots-Tag:noindex
X-PUBLISHED-TTL:PT1H
BEGIN:VTIMEZONE
TZID:Europe/Paris
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20240331T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20241027T010000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20250330T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20251026T010000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20260329T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20261025T010000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20250621T080000
DTEND;TZID=Europe/Paris:20250922T170000
DTSTAMP:20250827T093355Z
CREATED:20250605T131222Z
LAST-MODIFIED:20250827T093355Z
UID:27390-1750492800-1758560400@www.chimieparistech.psl.eu
SUMMARY:ParisTech International Admission Program is open
DESCRIPTION:Learn more about the ParisTech International Admission Program \nLien vers la communauté WhatsApp ParisTech pour poser toutes vos questions au sujet du programme : https://chat.whatsapp.com/KLJigQfgsDnA1VFwKNgtA8
URL:https://www.chimieparistech.psl.eu/evenement-agenda/paristech-international-admission-program-is-open/
CATEGORIES:International
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20250623T080000
DTEND;TZID=Europe/Paris:20250719T180000
DTSTAMP:20250626T133016Z
CREATED:20250623T131516Z
LAST-MODIFIED:20250626T133016Z
UID:27550-1750665600-1752948000@www.chimieparistech.psl.eu
SUMMARY:Oraux du CCMP-Infos admissibles 2025
DESCRIPTION:Plus de détails ici. 
URL:https://www.chimieparistech.psl.eu/evenement-agenda/oraux-du-ccmp-2/
LOCATION:Chimie ParisTech – PSL\, 11\, rue Pierre et Marie Curie\, Paris\, 75005\, France
CATEGORIES:Evénement,Formation
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20250626T140000
DTEND;TZID=Europe/Paris:20250626T170000
DTSTAMP:20250620T153324Z
CREATED:20250620T153324Z
LAST-MODIFIED:20250620T153324Z
UID:27543-1750946400-1750957200@www.chimieparistech.psl.eu
SUMMARY:Séminaire Programme Gradué Chimie PSL
DESCRIPTION:Phonon mediated superconductivity in complex oxides\, By Julien Varignon\, Laboratoire CRISMAT\, CNRS UMR 6508\, ENSICAEN\, Caen.  \nSeveral oxides deriving from a Ruddlesden-Popper (RP) phase with the chemical formula An+1BnO3n+1 such as bismuthates BaBiO3 [1] and antimonates BaSbO3 [2] (n=∞)\, infinite layered nickelates R1-xAxNiO2 [3] (n=∞\, R=La\, Pr or Nd\, A=Ca or Sr) and Nd6Ni5O12 [4] (n=5)\, obtained after a chemical reduction of a parent RP phase\, or ruthenates Sr2RuO4 [5] (n=1) are superconductors either in bulk or once appropriately doped with holes or electrons. However\, the attractive interaction responsible of the Cooper pair formation at the core of superconductivity in these complex oxides is not yet fully understood and unified between compounds\, thereby hindering the identification of high critical temperature Tc superconductors whose record at ambient conditions is still held by cuprates.Using first-principles simulations performed with parameter free density functional theory (DFT)\, we reveal the existence of an insulating phase in the phase diagram in several of these complex oxides that is associated with a charge/orbital and bond ordered state. The electron-phonon coupling is then weakened by doping effects (or by other stimuli) so that the materials become metallic. Nevertheless\, we find that it remains sufficiently large to mediate the Cooper pairs formation with computed Tc’s in sharp agreement with experiments. These results suggest that the phonons responsible of insulating phases in complex oxides [6] may also be at the core of their superconducting state. Finally\, these results are ratified if all relevant degrees of freedom\, such as structural lowering events and local spin formation\, as well as an exchange-correlation functional sufficiently amending self-interaction errors inherent to practiced DFT are involved in the simulations. \nReferences:[1] Sleight\, Physica C 514\, 152 (2015).[2] Kim et al\, Nat. Mater. 21\, 627 (2022).[3] Li et al\, Nature 572\, 624 (2019).[4] Pan et al\, Nat. Mater. 21\, 160 (2022).[5] Maeno et al\, Nature 372\, 532 (1994).[6] Varignon et al\, Nat. Comm. 10\, 1658 (2019). \nZoom link: https://espci.zoom.us/j/89535002474?pwd=tw5aPhqOQdoLLNG1hMK7KXBjBbaalR.1 \nID:895 3500 2474 \nPasscode:Pitaevskii
URL:https://www.chimieparistech.psl.eu/evenement-agenda/seminaire-programme-gradue-chimie-psl-154/
LOCATION:ESPCI Paris\, 10 Rue Vauquelin\, Paris\, 75005\, France
CATEGORIES:Séminaire
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20250626T140000
DTEND;TZID=Europe/Paris:20250626T170000
DTSTAMP:20250623T131220Z
CREATED:20250623T131220Z
LAST-MODIFIED:20250623T131220Z
UID:27548-1750946400-1750957200@www.chimieparistech.psl.eu
SUMMARY:Séminaire Programme Gradué Chimie PSL
DESCRIPTION:Co-assembly of functionally active membrane proteins in mesostructured silica\, Brad Chmelka\, Department of Chemical Engineering\, University of California\, Santa Barbara. Thursday June 26 at 2 pm in Amphi Charpak\, ESPCI Paris-PSL.  \nThe physicochemical properties of membrane proteins\, such as for ion transport\, selective catalysis\, or biosensing\, are desirable for technological applications\, although they are challenging to harness in synthetic abiotic host materials. This is due\, in part\, to the challenges of incorporating relatively fragile protein molecules at sufficient concentrations in robust host environments in which the functionalities of the membrane proteins are retained. Nevertheless\, judicious selections of self-assembling surfactants\, solvent\, silica precursors\, and synthesis conditions enable high concentrations of functionally active membrane proteins to be stabilized in robust mesostructured inorganic-surfactant host matrices. Specifically\, light-activated proteorhodopsin\, a transmembrane protein that pumps H+ ions in green light\, has been incorporated at high loadings (>30 wt%) into transparent silica-surfactant films with high extents of mesostructural order. Small-angle X-ray scattering\, solid-state NMR\, and cryo-EM analyses yield detailed insights on the extent of mesoscale order and the nanoscale interactions of the protein\, surfactant\, and silica species in the hybrid materials. Transient UV−visible spectroscopy analyses show that the proteorhodopsin molecules exhibit native-like conformational dynamics\, as well as enhanced stability compared to surfactant or lipid environments. The results correlate the compositions\, structures\, dynamics\, and  properties of the proteorhodopsin molecules in mesostructured silica-surfactant host materials\, which have potential applications for solar-to-electrochemical energy conversion. \nJ.P. Jahnke\, et al.\, “Functionally active proteorhodopsin membrane proteins incorporated in mesostructured silica films\,” J. Am. Chem. Soc.\, 140\, 3892–3906 (2018). \nM.W. Berkow\, et al.\,  “Co-assembly of functionally-active proteorhodopsin membrane protein molecules in mesostructured silica-surfactant films\,” Chem. Mater.\, 35\, 8502–8516 (2023). \nC.-T. Han\, et al.\, “Lipid membrane mimetics and oligomerization tune functional properties of proteorhodopsin\,” Biophys. J.\, 122\, 1–12 (2023). \nJ.P. Jahnke\, et al.\, “Mesostructured materials with controllable long-range orientational ordering and anisotropic properties\,” Adv. Mater.\, 2306800 (2023).
URL:https://www.chimieparistech.psl.eu/evenement-agenda/seminaire-programme-gradue-chimie-psl-155/
LOCATION:amphi Charpak\, ESPCI Paris-PSL
CATEGORIES:Séminaire
END:VEVENT
END:VCALENDAR