BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Chimie ParisTech - PSL - ECPv6.17.5.1//NONSGML v1.0//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-WR-CALNAME:Chimie ParisTech - PSL
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:20210328T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20211031T010000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20220327T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20221030T010000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20230326T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20231029T010000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20220601T110000
DTEND;TZID=Europe/Paris:20220601T120000
DTSTAMP:20220601T121537Z
CREATED:20220601T121426Z
LAST-MODIFIED:20220601T121537Z
UID:23232-1654081200-1654084800@www.chimieparistech.psl.eu
SUMMARY:Séminaire Programme Gradué Chimie PSL
DESCRIPTION:Storing Texts\, Images and Secure Data in Polymers\nPr. Jean-François Lutz\, Université de Strasbourg\, CNRS\, Institut Charles Sadron UPR22\, 23 rue du Loess\, 67034 Strasbourg Cedex 2\, France. \nE-mail: jflutz@unistra.fr \nWhere : ENS Biology Dpt\, Salle Favard \n  \nDr. Jean-François Lutz is CNRS research director and deputy director of the Institut Charles Sadron located in Strasbourg\, France. He received his doctoral degree from the University of Montpellier II in 2000 and his habilitation degree from the University of Potsdam in 2009. Before joining the CNRS\, he was post-doctoral fellow at Carnegie Mellon University (2001-2003) and afterwards leader of the research group Nanotechnology for Life Science at the Fraunhofer Institute for Applied Polymer Research (2003-2010). His current research interests include the synthesis of sequence-controlled polymers\, the design of digital polymers and the hybridization of sequence-defined macromolecules. He is author of over 200 publications including 10 patents and is listed since 2015 as an ISI Highly Cited Researcher (Clarivate Analytics) in the category Chemistry. Among several other awards\, he has received in 2018 the Silver Medal of the French CNRS. \n  \nIt has been shown in recent years that information can be stored at the molecular level in synthetic polymers [1\, 2]. To achieve such a property\, different comonomers are used as a molecular alphabet and assembled together into a defined information sequence. For instance\, an alphabet based on two different monomers allows writing of binary information in a linear polymer chain.3 But of course such digital polymers cannot be synthesized using a standard chain-growth or step-growth polymerization mechanisms because these approaches lead to polydisperse samples containing pronounced sequence defects. Instead\, so-called multi-step growth strategies have to be employed [4]. For instance\, solid-phase iterative chemistry allows synthesis of a wide variety of uniform sequence-defined digital polymers [3\, 4]. This approach is not restricted to oligomers and long digital chains containing more than 100 coded residues have been prepared [5]. Moreover\, the information stored in these chains can be easily decoded by tandem mass spectrometry. As shown very recently\, not only short but also long digital sequences can be deciphered using this analytical technique [6]. Furthermore\, the information stored in the chains can be edited using physical triggers such as temperature or light [7]. \nSince multi-byte digital encryption and decryption of a synthetic polymer chain has now been clearly demonstrated\, the next important challenge in this emerging field of research will be the application of such digital polymers in technological areas; for example for the development of molecular memories. However\, such applications are quite demanding and imply to move from simple proofs-of-concept at the single-chain level to complex multi-chain libraries allowing storage and manipulation of larger amounts of information. In this lecture\, I will highlight new directions that are currently under investigation in my laboratory for the development of such complex “coded matter”. In particular\, I will describe simple strategies for the preparation of polymer materials allowing high-density information storage. Specific emphasis will be put on the development of planar digital micro-arrays as well as on the three-dimensional organization of digital polymers [8]. \nReferences \n[1]         Lutz\, J.-F.; Ouchi\, M.; Liu\, D. R.; Sawamoto\, M. Science\, 2013\, Vol 341\, 1238149.\n[2]         Colquhoun\, H.; Lutz\, J.-F. Nat. Chem.\, 2014\, Vol 6\, 455-456.\n[3]         Roy\, R. K.; Meszynska\, A.; Laure\, C.; Charles\, L.; Verchin\, C.; Lutz\, J.-F. Nat. Commun.\, 2015\, Vol 6\, 7237.\n[4]         Lutz\, J.-F.; Lehn\, J.-M.; Meijer\, E. W.; Matyjaszewski\, K. Nat. Rev. Mater.\, 2016\, Vol 1\, 16024.\n[5]         Al Ouahabi\, A.; Kotera\, M.; Charles\, L.; Lutz\, J.-F. ACS Macro Lett.\, 2015\, Vol 4\, 1077-1080.\n[6]         Al Ouahabi\, A.; Amalian\, J.-A.; Charles\, L.; Lutz\, J.-F. Nat. Commun.\, 2017\, Vol 8\, 967.\n[7]         König\, N. F.; Al Ouahabi\, A.; Oswald\, L.; Szweda\, R.; Charles\, L.; Lutz\, J.-F. Nat. Commun.\, 2019\, Vol 10\, 3774.\n[8]         Szweda\, R.; Tschopp\, M.; Felix\, O.; Decher\, G.; Lutz\, J.-F. Angew. Chem.\, Int. Ed.\, 2018\, Vol 57\, 15817-15821.
URL:https://www.chimieparistech.psl.eu/evenement-agenda/seminaire-programme-gradue-chimie-psl-84/
LOCATION:ENS\, 24 rue Lhomond\, Paris\, 75005
CATEGORIES:Séminaire
ATTACH;FMTTYPE=image/png:https://www.chimieparistech.psl.eu/wp-content/uploads/2020/06/chimie1.png
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20220601T110000
DTEND;TZID=Europe/Paris:20220601T123000
DTSTAMP:20220504T153034Z
CREATED:20220504T153034Z
LAST-MODIFIED:20220504T153034Z
UID:23162-1654081200-1654086600@www.chimieparistech.psl.eu
SUMMARY:Colloques Programme Gradué Chimie PSL
DESCRIPTION:Lectures\nLes 17\, 24 mai et 1er\, 7 juin 2022\nInteractions of Light with Gold\n(and Other Metals)\nConférences en anglais – de 11h00 à 12h30 – Salle 2\nPass sanitaire requis\, port du masque obligatoire. \nmercredi 1er juin \nComposite Plasmonic Nanomaterials:\nProspects in Biosensing and Catalysis\nCliquez-ici pour accéder à toutes les informations !
URL:https://www.chimieparistech.psl.eu/evenement-agenda/colloques-programme-gradue-chimie-psl-3/
LOCATION:Collège de France\, 11\, place Marcelin-Berthelot\, Paris\, Ile de France\, 75005\, France
CATEGORIES:Colloque
ATTACH;FMTTYPE=image/png:https://www.chimieparistech.psl.eu/wp-content/uploads/2020/06/chimie1.png
ORGANIZER;CN="Luis M. Liz-Marz%C3%A1n":MAILTO:e-mail: llizmarzan@cicbiomagune.es
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20220601T140000
DTEND;TZID=Europe/Paris:20220601T150000
DTSTAMP:20220601T122235Z
CREATED:20220601T122235Z
LAST-MODIFIED:20220601T122235Z
UID:23237-1654092000-1654095600@www.chimieparistech.psl.eu
SUMMARY:Séminaire Programme Gradué Chimie PSL
DESCRIPTION: \n\n\n\nChiral phonons in quantum materials\nGaël Grissonnanche\, Laboratory of Atomic and Solid State Physics\, Cornell University\, Ithaca\, NY\, USA\n\n\n \nWhere : Hybrid format\n\n\n\nRoom Charpak\, Entrance Building\, ground floor \nZoom link: https://espci.zoom.us/j/88349618317?pwd=aXcrQ3RVaFpWMlA3Wk0yRHlsdy94Zz09\nID: 883 4961 8317\nPassword: B.Pascal\n\n\n\n\n \n\nLaboratory of Atomic and Solid State Physics\, Cornell University\, Ithaca\, NY\, USA and Kavli Institute at Cornell for Nanoscale Science\, Ithaca\, NY\, USA\nThe thermal Hall effect has been proposed as a powerful tool to probe exotic topological excitations in quantum spin liquids\, with the spectacular report of a half-quantized thermal Hall effect in the Kitaev material α-RuCl3[1\,2]. These results hold much promise for quantum computing. \nHowever\, it is becoming surprisingly apparent that phonons can also produce a large thermal Hall effect across a wide range of quantum materials\, from cuprate superconductors [3\,4] to the titanates [5] and frustrated magnets [6]. A significant phonon Hall effect is also suspected in α-RuCl3 [7\, 8]. While phonons carry no charge and are common low energy excitations in solids\, the origin of the handedness that gives rise to a phonon Hall effect in a magnetic field remains an enigma. Besides\, the present ubiquity of the phonon Hall effect calls for caution when interpreting the results of quantum spin liquids candidates.\nDuring the talk\, I will share the signatures of the thermal Hall effect of phonons and how we came to discover it; why this is interesting\, and how we can learn about quantum materials through this journey of serendipitous discoveries. By the end of the presentation\, I hope to convince you that the thermal Hall effect is a technique that needs to be more fully/carefully exploited experimentally and the phonon Hall effect a property that needs to be better understood theoretically.\nReferences\n[1] Kasahara et al.\, Nature 559\, 277 (2018)\n[2] Yokoi et al.\, Science 373\, 6554 (2021)\n[3] Grissonnanche et al.\, Nature 571\, 376 (2019)\n[4] Grissonnanche et al.\, Nat. Phys. 16\, 1108 (2020)\n[5] Li et al.\, PRL 105\, 225901 (2020)\n[6] Hirokane et al. PRB 99\, 134419 (2019)\n[7] Hentrich et al. PRB 99\, 085136 (2019)\n\n\n\n\n[8] Lefrançois et al. PRX 12\, 0021025 (2022)
URL:https://www.chimieparistech.psl.eu/evenement-agenda/seminaire-programme-gradue-chimie-psl-85/
LOCATION:ESPCI Paris\, 10 Rue Vauquelin\, Paris\, 75005\, France
CATEGORIES:Séminaire
ATTACH;FMTTYPE=image/png:https://www.chimieparistech.psl.eu/wp-content/uploads/2020/06/chimie1.png
END:VEVENT
END:VCALENDAR