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DESCRIPTION:Séminaires / soutenance-0
X-WR-CALDESC:Séminaires / soutenance-0
X-WR-CALNAME:Séminaires/soutenances du LIPhy
X-PUBLISHED-TTL:PT15M
SUMMARY:Séminaires/soutenances du LIPhy
BEGIN:VTIMEZONE
TZID:Europe/Paris
LAST-MODIFIED:20260827T145337Z
TZURL:https://www.tzurl.org/zoneinfo-outlook/Europe/Paris
X-LIC-LOCATION:Europe/Paris
BEGIN:DAYLIGHT
TZNAME:CEST
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
DTSTART:19700329T020000
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DTSTART:19701025T030000
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END:VTIMEZONE
BEGIN:VEVENT
UID:TU2058428218
DTSTAMP:20261012T065651Z
SUMMARY:Granular heap on an elastic membrane : statics and dynamics (Sophie
  Monnery (Institut Jean le Rond d’Alembert\, Paris))
DESCRIPTION:Who: Sophie Monnery (Institut Jean le Rond d’Alembert\, Paris
 )\n\nWhen granular material is poured onto an elastic membrane\, it forms 
 a heap whose weight deforms the membrane. The membrane’s deformation\, i
 n turn\, constrains the heap’s geometry\, causing its aspect ratio to de
 viate from the classic triangular profile. This coupling is governed by a 
 dimensionless number that captures the balance between the membrane’s el
 asticity and the granular weight in this simplified elasto-granular system
 . We introduce an incremental model to predict the heap’s temporal evolu
 tion\, accounting for its spreading and growth as mass is added.\n\nThen\,
  upon introducing energy into the system by vibrating the elastic support\
 , grains rearrangements reshape the heap’s apex\, giving rise to new con
 figurations\, including a “volcano-like” profile that is more compact.
  At even higher vibrational amplitudes\, grains begin to detach from the b
 ulk and to bounce on the membrane\, with spiraling trajectories.\n\nContac
 t: Philippe Marmottant\n\n
CATEGORIES:Séminaire labo
CLASS:PUBLIC
TRANSP:OPAQUE
SEQUENCE:0
DTSTART;TZID=Europe/Paris:20260413T110000
DTEND;TZID=Europe/Paris:20260413T120000
CREATED:20260311T133011Z
LAST-MODIFIED:20260313T133458Z
URL;VALUE=URI:https://teamup.com/kspjx8oo4q8mxg7v8h/events/2058428218
X-TEAMUP-WHO:Sophie Monnery (Institut Jean le Rond d’Alembert\, Paris)
END:VEVENT
BEGIN:VEVENT
UID:TU2069808903
DTSTAMP:20261012T065651Z
SUMMARY:[Young Researchers Only]: Tuning the echanics of fibrous tissues wi
 th​ optogenetics​. || Acoustics of single-reed instruments and the mec
 hanical characterization of reeds​. (Thibault BRAM DIT SAINT AMAND - (Ph
 D\, Microtiss) || Camille URBAN- (PhD\, MOVE)​)
DESCRIPTION:Who: Thibault BRAM DIT SAINT AMAND - (PhD\, Microtiss) || Camil
 le URBAN- (PhD\, MOVE)​\n\n**Tuning the echanics of fibrous tissues with
 ​ optogenetics​.**\n\n*Thibault BRAM DIT SAINT AMAND - (PhD\, Microtis
 s)*\n\nIn connective tissues\, mechanical signals play a key role in the r
 egulation of biological processes. Fibroblasts\, a type of contracting cel
 ls\, can induce such signals\, deforming and remodeling over long distance
 s the extracellular matrix (ECM) allowing large-scale reorganization. ​\
 n\nIn this project\, we investigate the interactions between tissue contra
 ctility and its ECM to understand physiological mechanisms such as wound h
 ealing\, but also pathological mechanisms such as fibrosis. ​\n\nOur app
 roach involves the use of optogenetics\, a technique allowing dynamic modu
 lation of tissue forces with great spatiotemporal resolution. With light s
 timulation\, we managed to train fibrous tissues during their self-assembl
 y and tune their mechanics.​\n\n---\n\n**Acoustics of single-reed instru
 ments and the mechanical characterization of reeds​.**\n\n*Camille URBAN
 - (PhD\, MOVE)​*\n\nThe reed is a thin piece of carved cane essential to
  sound production in single-reed instruments\, such as the clarinet or the
  saxophone. It plays a crucial role in both sound quality and musician's p
 laying comfort. However\, even when reeds are sold as 'identical' by manuf
 acturers\, musicians often find significant differences between them. ​\
 n\nThis work aims to understand this phenomenon by identifying physical pa
 rameters that define and explain reed quality. In this presentation\, I wi
 ll introduce you to the acoustics of the clarinet and share my work from a
  previous internship focused on the mechanical characterization of reeds.
 ​​\n\n
LOCATION:Conference Room
CATEGORIES:Séminaire des non-permanents
CLASS:PUBLIC
TRANSP:OPAQUE
SEQUENCE:0
DTSTART;TZID=Europe/Paris:20260424T110000
DTEND;TZID=Europe/Paris:20260424T120000
CREATED:20260330T090459Z
LAST-MODIFIED:20260421T124229Z
URL;VALUE=URI:https://teamup.com/kspjx8oo4q8mxg7v8h/events/2069808903
X-TEAMUP-WHO:Thibault BRAM DIT SAINT AMAND - (PhD\, Microtiss) || Camille U
 RBAN- (PhD\, MOVE)​
X-TEAMUP-WHERE:Conference Room
ATTACH:https://files.teamup.com/16073145/attachment/01KPR0MP83EAWX12D9JPKMG
 74Q/Camille_portrait.jpg?hash=c0a6befbb8e953cc4752a462223086ed70a1e53459a6
 7a956b640d922816c48e
ATTACH:https://files.teamup.com/16073145/attachment/01KPR0MP8X44Q3T9GFQR94P
 C75/Thibault_portrait.jpg?hash=6906dfb5469ea2d2c41c95af77f1961cc603c6362e9
 1e131113b0384aab3464e
ATTACH:https://files.teamup.com/16073145/attachment/01KPR0WXAQ7YMB13WSMB6XZ
 0WZ/fig_abstract.png?hash=c0be21f09e32b6f81371d32647959ff95a4f835d7fe55e66
 608fb368cff38285
END:VEVENT
BEGIN:VEVENT
UID:TU2038569180
DTSTAMP:20261012T065651Z
SUMMARY:Deciphering the origin of saddle-shape geometry in the microstructu
 re of echinoderms skeleton. (Giulio Facchini (Laboratoire Matière et Syst
 èmes Complexes\, Paris))
DESCRIPTION:Who: Giulio Facchini (Laboratoire Matière et Systèmes Complex
 es\, Paris)\n\nThe microstructure of echinoderms skeleton\, like sea stars
  and sea urchins\, is an impressive example of self-organization and compl
 exity. This structure called stereom is a porous meshwork\, made of calcit
 e\, whose surface is saddle-shaped\, and remind of minimal surfaces. Minim
 al surfaces have intrigued scientists for centuries\, as they can spontane
 ously emerge from minimizing interfacial energy like surface tension. Seve
 ral studies have addressed the morphogenesis of the stereom\, in sea urchi
 ns and other echinoderms\, showing that it forms via the addition of tiny 
 mineral bids at the tip of small skeletal elements that successively branc
 h and bridge to form a complex network. Yet\, a global\, mechanistic\, com
 prehension of how biomineralizing cells control preferential deposition is
  still lacking.\n\nDuring the seminar I will present a recent work1 on the
  morphogenesis of the particular stereom geometry observed in the sea star
  P. nodosus. Here\, the stereom can take the form of a diamond Triply Peri
 odic Minimal Surface (TPMS) which confer it specific mechanical properties
 . Using different marking protocols\, we provide the first experimental in
 sight in the formation of the diamond TPMS stereom\, and show that the for
 mation of such a highly ordered structure relies on a precise and timely c
 oordination of the branching and bridging episodes. Moreover\, we provide 
 experimental evidences of an organic precursor made of F – actin fibers 
 exhibiting saddle-shape geometry. We hypothesise that such a fibers templa
 te may self-organise under mechanical tension\, thus explaining the peculi
 ar curvature signature of the final structure. Finally\, I will present so
 me ongoing experimental work performed on sea urchins\, showing that the s
 ame morphogenetic mechanism could be shared across very different species.
 \n\nContact: Emmanuel Siéfert\n\n
CATEGORIES:Séminaire labo
CLASS:PUBLIC
TRANSP:OPAQUE
SEQUENCE:0
DTSTART;TZID=Europe/Paris:20260504T110000
DTEND;TZID=Europe/Paris:20260504T120000
CREATED:20260206T183924Z
LAST-MODIFIED:20260422T123030Z
URL;VALUE=URI:https://teamup.com/kspjx8oo4q8mxg7v8h/events/2038569180
X-TEAMUP-WHO:Giulio Facchini (Laboratoire Matière et Systèmes Complexes\,
  Paris)
END:VEVENT
BEGIN:VEVENT
UID:TU2045212259
DTSTAMP:20261012T065651Z
SUMMARY:Géraldine Bozec - TBD
CATEGORIES:Séminaires internes
CLASS:PUBLIC
TRANSP:OPAQUE
SEQUENCE:0
DTSTART;TZID=Europe/Paris:20260507T110000
DTEND;TZID=Europe/Paris:20260507T120000
CREATED:20260218T095557Z
URL;VALUE=URI:https://teamup.com/kspjx8oo4q8mxg7v8h/events/2045212259
END:VEVENT
BEGIN:VEVENT
UID:TU2048222636
DTSTAMP:20261012T065651Z
SUMMARY:From active particles to flexible\, deformable\, and motile superst
 ructures : a new type of soft robot of robots (Hamid Kellay (Laboratoire O
 ndes et Matière d'Aquitaine\, Bordeaux))
DESCRIPTION:Who: Hamid Kellay (Laboratoire Ondes et Matière d'Aquitaine\, 
 Bordeaux)\n\nWe study assemblies of rodlike robots made motile through sel
 f-vibration. When confined by circular scaffolds\, dilute assemblies of th
 ese rods act as a 2D gas of particles. Above a critical surface fraction\,
  some of the bots line up in one or more tight clusters along the corral b
 oundary while\, in the bulk\, gas-like behavior is retained. We find that 
 the unified pushing of the clustered bots on the boundary can drive collec
 tive motion: by selecting corrals that are deformable but free to move\, w
 e take advantage of surface cluster formation to force the robots to work 
 together. The deformability of the arena allows the assembly to go through
  narrow slits or to circumvent obstacles. Simple tasks such as pulling a l
 oad\, moving through an obstacle course\, or cleaning up an arena are demo
 nstrated. Rudimentary control of these superstructures (robots+scaffold) u
 sing light is also proposed.\n\nContact: Jean-Louis Barrat\n\n
CATEGORIES:Séminaire labo
CLASS:PUBLIC
TRANSP:OPAQUE
SEQUENCE:0
DTSTART;TZID=Europe/Paris:20260511T110000
DTEND;TZID=Europe/Paris:20260511T120000
CREATED:20260223T144422Z
LAST-MODIFIED:20260412T063901Z
URL;VALUE=URI:https://teamup.com/kspjx8oo4q8mxg7v8h/events/2048222636
X-TEAMUP-WHO:Hamid Kellay (Laboratoire Ondes et Matière d'Aquitaine\, Bord
 eaux)
END:VEVENT
BEGIN:VEVENT
UID:TU2091608192
DTSTAMP:20261012T065651Z
SUMMARY:[Young Researchers Only]: The Power of Chickpeas: Understanding the
  Physics Behind Swelling Seeds. || Towards fully programmable inflatable p
 anels​​. (Alexia BEALE  - (Post-Doc\, MOVE) || Ofir MIRKIN- (PhD\, MOV
 E)​)
DESCRIPTION:Who: Alexia BEALE  - (Post-Doc\, MOVE) || Ofir MIRKIN- (PhD\, M
 OVE)​\n\n**The Power of Chickpeas: Understanding the Physics Behind Swel
 ling Seeds​.**\n\n*Alexia BEALE- (Post-Doc\, MOVE)*\n\nWhen preparing a 
 meal using chickpeas\, the chickpea seeds are typically soaked overnight i
 n water. Have you noticed that these chickpea seeds can swell up to ×2 th
 eir original volume? If a chickpea seed is rehydrated in a confined space\
 , it can exert a force of ~6 N on the boundary of its container. In my res
 earch\, I explore the physical properties and swelling dynamics of seeds\,
  using chickpeas as a model system. When placed underwater\, osmotic flow 
 leads to water uptake in the seed\, whilst diffusion plays a role in water
  transport within the seed. This talk will cover the swelling dynamics of 
 individual seeds\, an exploration of their structural composition during s
 welling and will answer the question of why some chickpeas wrinkle during 
 this process. ​\n\n---\n\n**Towards fully programmable inflatable panels
 ​​​.**\n\n*Ofir MIRKIN- (PhD\, MOVE)​*\n\nSelf-deployable material
 s are expected to have wide application potential\, e.g.\, in robotics\, m
 edicine\, and architecture. So far\, all responsive materials have limited
  deformation possibilities\, and researchers lack control over the six loc
 al degrees of freedom (three for the metric and three for the curvature). 
 Here\, we introduce a strategy to address this limitation. ​\n\nWe inves
 tigate how variations in mesoscale properties influence the deformation of
  inflatable elastic materials. Our structures feature a triangular network
  of interconnected cylindrical cavities\, and we study how their density\,
  eccentricity\, and orientation control the in-plane deformation. Using th
 ese results\, we solve an inverse problem of approximating target shapes. 
 ​\n\n
LOCATION:Conference Room
CATEGORIES:Séminaire des non-permanents
CLASS:PUBLIC
TRANSP:OPAQUE
SEQUENCE:0
DTSTART;TZID=Europe/Paris:20260522T110000
DTEND;TZID=Europe/Paris:20260522T120000
CREATED:20260506T131611Z
LAST-MODIFIED:20260518T130703Z
URL;VALUE=URI:https://teamup.com/kspjx8oo4q8mxg7v8h/events/2091608192
X-TEAMUP-WHO:Alexia BEALE  - (Post-Doc\, MOVE) || Ofir MIRKIN- (PhD\, MOVE)
 ​
X-TEAMUP-WHERE:Conference Room
ATTACH:https://files.teamup.com/16073145/attachment/01KRXJYQFAPM0MR1YYFC1MS
 A80/Alexia_portrait.jpeg?hash=ca0a6ba03043546a73d7d09ddc367f0c3875c17298c5
 391c8b15a9d305be0b4c
ATTACH:https://files.teamup.com/16073145/attachment/01KRXK4XPBGGC2KS66YEAJ5
 1RB/abstract_fig.png?hash=036b32f213c46c685e3ff9e5032708277a70aed14bd62c66
 eea449c25dd76e26
END:VEVENT
BEGIN:VEVENT
UID:TU2070547609
DTSTAMP:20261012T065651Z
SUMMARY:HDR: Phage Display and microbial systems: the development of biorec
 eptors and their applications in biotechnology (Natale Scaramozzino)
DESCRIPTION:Who: Natale Scaramozzino\n\nI have developed my scientific care
 er at the intersection of biology\, physics and biotechnology. Following t
 he completion of my doctoral thesis on high-risk biological viruses\, I wo
 rked on molecular detection methods\, with a particular focus on the small
 pox virus. I also contributed to the development of an automated genotypin
 g unit for use in forensic science. My research at LIPhy (CNRS) has centre
 d on using phage display to select antibodies and peptides for use in bios
 ensors\, including electronic noses for detecting volatile organic compoun
 ds and pathogens such as Campylobacter jejuni. I have also studied non-can
 onical DNA structures\, such as telomeric G-quadruplexes. My current proje
 cts combine microfluidics\, genomic engineering and modelling to improve o
 ur understanding of bacterial mechanisms\, including strategies for alloca
 ting protein resources and the dynamics of microbial consortia. These proj
 ects have applications in the rapid detection of pathogens\, the developme
 nt of biomolecules that target specific DNA structures and the optimisatio
 n of microbial systems for biotechnological applications. My career path r
 eflects a collaborative and interdisciplinary approach\, combining fundame
 ntal research with applied innovation.\n\n
CATEGORIES:Soutenances
CLASS:PUBLIC
TRANSP:OPAQUE
SEQUENCE:0
DTSTART;TZID=Europe/Paris:20260528T140000
DTEND;TZID=Europe/Paris:20260528T150000
CREATED:20260331T094511Z
LAST-MODIFIED:20260413T075437Z
URL;VALUE=URI:https://teamup.com/kspjx8oo4q8mxg7v8h/events/2070547609
X-TEAMUP-WHO:Natale Scaramozzino
END:VEVENT
BEGIN:VEVENT
UID:TU2057554366
DTSTAMP:20261012T065651Z
SUMMARY:Variational two-scale models in elasticity (Claire Lestringant (Sor
 bonne Université\, Paris))
DESCRIPTION:Who: Claire Lestringant (Sorbonne Université\, Paris)\n\nI wil
 l discuss two classes of effective\, macroscopic models for two-scale syst
 ems in elasticity: (i) 1D models applicable to thin structures\, and (ii) 
 homogenized 2D or 3D continua applicable to materials with a periodic micr
 ostructure. In both systems\, the separation of scales calls for the defin
 ition of macroscopic models that slave fine-scale fluctuations to an effec
 tive\, macroscopic deformation field. I will show how such models can be e
 stablished in a systematic and rigorous way based on a two-scale expansion
  that accounts for both nonlinear and higher-order (i.e. deformation gradi
 ent) effects. I will further demonstrate that the resulting models accurat
 ely predict nonlinear effects\, finite size effects and localization for a
  set of examples. Finally\, I will discuss two challenges that arise when 
 solving these effective models: (1) missed boundary layer effects and (2) 
 negative stiffness associated with higher-order terms.\n\nContact: Emmanue
 l Siéfert\n\n
CATEGORIES:Séminaire labo
CLASS:PUBLIC
TRANSP:OPAQUE
SEQUENCE:0
DTSTART;TZID=Europe/Paris:20260601T110000
DTEND;TZID=Europe/Paris:20260601T120000
CREATED:20260310T080937Z
LAST-MODIFIED:20260603T154617Z
URL;VALUE=URI:https://teamup.com/kspjx8oo4q8mxg7v8h/events/2057554366
X-TEAMUP-WHO:Claire Lestringant (Sorbonne Université\, Paris)
END:VEVENT
BEGIN:VEVENT
UID:TU2048006478
DTSTAMP:20261012T065651Z
SUMMARY:Applying optogenetics to single cells: do photophysics\, diffusion\
 , compartmentalization\, interactions\, etc.\, really matter? (Antoine Del
 on (IMOV))
DESCRIPTION:Who: Antoine Delon (IMOV)\n\nOptogenetic control of single cell
 s with high spatio-temporal precision is a quite promising technique to be
 tter understand many cellular processes such as motility\, fate or signali
 zation.\n\nWe performed a series of experiments to study membrane recruitm
 ent using either an evanescent single spot photoactivation or a propagativ
 e one. While we initially expected that an evanescent spot would enable a 
 much better spatially localized photoactivation and recruitment\, we obser
 ved mitigated results.\n\nTo understand those results we developed a bioph
 ysical model of our biological system.\n\nTherefore\, we will discuss almo
 st everything you always wanted to know about photophysics\, diffusion\, c
 ompartmentalization and interactions (but were perhaps afraid to ask).\n\n
 Finally\, we will give few cues to improve the spatial resolution of optog
 enetic photoactivation.\n\n
CATEGORIES:Séminaires internes
CLASS:PUBLIC
TRANSP:OPAQUE
SEQUENCE:0
DTSTART;TZID=Europe/Paris:20260604T110000
DTEND;TZID=Europe/Paris:20260604T120000
CREATED:20260223T091152Z
LAST-MODIFIED:20260603T154511Z
URL;VALUE=URI:https://teamup.com/kspjx8oo4q8mxg7v8h/events/2048006478
X-TEAMUP-WHO:Antoine Delon (IMOV)
END:VEVENT
BEGIN:VEVENT
UID:TU2100558946
DTSTAMP:20261012T065651Z
SUMMARY:Soutenance Loïc Lechevallier (Loïc LECHEVALLIER)
DESCRIPTION:Who: Loïc LECHEVALLIER\n\n**Titre : Développement et caracté
 risation d’une source THz à photomélange de lasers IR ultra-stable : a
 pplication à la vapeur d’eau**\n\n
CATEGORIES:Soutenances
CLASS:PUBLIC
TRANSP:OPAQUE
SEQUENCE:0
DTSTART;TZID=Europe/Paris:20260610T140000
DTEND;TZID=Europe/Paris:20260610T150000
CREATED:20260521T091131Z
URL;VALUE=URI:https://teamup.com/kspjx8oo4q8mxg7v8h/events/2100558946
X-TEAMUP-WHO:Loïc LECHEVALLIER
END:VEVENT
BEGIN:VEVENT
UID:TU2094376612
DTSTAMP:20261012T065651Z
SUMMARY:Phase retrieval based on intensity-only spatiotemporal wavefront sh
 aping (Luis Alberto Razo López (Institut Langevin\, Paris))
DESCRIPTION:Who: Luis Alberto Razo López (Institut Langevin\, Paris)\n\nWe
  introduce a phase retrieval framework based solely on intensity measureme
 nts and intensity-only spatiotemporal modulation. Our approach leverages s
 patiotemporal wavefront shaping to encode phase information into temporall
 y multiplexed intensity signals\, which are subsequently decomposed in the
  Fourier domain. We show that the resulting temporal harmonics correspond 
 to spiral-phase–modulated speckle components\, enabling the retrieval of
  phase information without direct phase-sensitive detection. We derive the
  harmonic structure induced by a rotating angular aperture mask and demons
 trate that each harmonic carries a distinct spiral phase and amplitude wei
 ghting governed by a sinc envelope. Based on this structure\, we develop a
 n optimization-based reconstruction algorithm that retrieves both the unkn
 own diffuser phase and system scaling without prior knowledge of the optic
 al transfer function. Experimental results confirm accurate reconstruction
  of diffuser surfaces and aberration correction\, including refocusing thr
 ough digital micromirror device (DMD)-induced distortions.\n\nContact: Dor
 ian Bouchet\n\n
CATEGORIES:Séminaire labo
CLASS:PUBLIC
TRANSP:OPAQUE
SEQUENCE:0
DTSTART;TZID=Europe/Paris:20260615T110000
DTEND;TZID=Europe/Paris:20260615T120000
CREATED:20260511T132927Z
LAST-MODIFIED:20260521T134821Z
URL;VALUE=URI:https://teamup.com/kspjx8oo4q8mxg7v8h/events/2094376612
X-TEAMUP-WHO:Luis Alberto Razo López (Institut Langevin\, Paris)
END:VEVENT
BEGIN:VEVENT
UID:TU2103371808
DTSTAMP:20261012T065651Z
SUMMARY:[Young Researchers Only]: What do a fish and a diabolo have in comm
 on?​ || Optimising your survival rate in AI-Driven cars.​ (Romane FREY
   - (PhD\, MOVE) || Mathieu LETROU- (Post-Doc\, MC2)​)
DESCRIPTION:Who: Romane FREY  - (PhD\, MOVE) || Mathieu LETROU- (Post-Doc\,
  MC2)​\n\n**What do a fish and a diabolo have in common?​**\n\n*Romane
  FREY- (PhD\, MOVE)*\n\nThe rapid launch of a diabolo into the air when bo
 th ends of its string are suddenly pulled illustrates a simple but effecti
 ve mechanical process. This motion can be interpreted using a simple geome
 tric model in which a folded triangular configuration of a string is quick
 ly straightened under fast traction at its extremities\, transferring mome
 ntum to the central object. The same principle applies to a folded elastic
  membrane. As the ends are pulled apart\, the mass distributed along the m
 embrane is rapidly accelerated\, similarly to how a diabolo is launched. B
 ecause unlike in the diabolo\, the mass is not free\, the sudden transfer 
 of momentum makes the membrane vibrate. The frequency of the sound produce
 d depends on the tension in the membrane. This analogy suggests potential 
 relevance in bioacoustics\, where certain fish species may use similar rap
 id tensioning mechanism to produce loud sounds. In bony fish\, sound produ
 ction relies on the contraction of high-speed muscles that rapidly modulat
 e the tension of a gas-filled organ\, the swim bladder.​\n\n---\n\n**Opt
 imising your survival rate in AI-Driven cars.​**\n\n*Mathieu LETROU - (P
 ost-Doc\, MC2)​*\n\nAs autonomous vehicles become smarter\, an ethical q
 uestion emerges: what happens when your car must decide who lives and who 
 dies? In this talk\, we will explore the scientific research devoted to th
 is problem. Through ethics\, sociology\, economics\, and mathematics point
  of view\, we will examine the different solutions proposed by researchers
  and the challenges they raise for society. By the end\, you will have all
  the tools needed to maximize your chances of survival in a world where dr
 iving licenses have become obsolete. ​\n\n
LOCATION:Conference Room
CATEGORIES:Séminaire des non-permanents
CLASS:PUBLIC
TRANSP:OPAQUE
SEQUENCE:0
DTSTART;TZID=Europe/Paris:20260626T110000
DTEND;TZID=Europe/Paris:20260626T120000
CREATED:20260526T162445Z
LAST-MODIFIED:20260619T065633Z
URL;VALUE=URI:https://teamup.com/kspjx8oo4q8mxg7v8h/events/2103371808
X-TEAMUP-WHO:Romane FREY  - (PhD\, MOVE) || Mathieu LETROU- (Post-Doc\, MC2
 )​
X-TEAMUP-WHERE:Conference Room
ATTACH:https://files.teamup.com/16073145/attachment/01KVFANGMPHWGSMNSZ7S6DD
 D8J/Mathieu_portrait.png?hash=f605af323e155e2f6c347be8a22e126be3e2fdc00604
 39b59b0ef850d67f77a7
ATTACH:https://files.teamup.com/16073145/attachment/01KVFANGN9D7HV1DP0WCA7M
 ZP6/Romane_portrait.JPG?hash=229b1466cff9822b448c6f12d9331fe1ba677bde9b313
 d33217774f0792cdfdc
ATTACH:https://files.teamup.com/16073145/attachment/01KVFANGP3MRGGNGHWTBFKC
 B1P/abstract_fig.png?hash=0edec7fc4bb6beae074122d2ce0ea93ae0e863329f6f3a1c
 cd6e5cbb4965b095
END:VEVENT
BEGIN:VEVENT
UID:TU2113582881
DTSTAMP:20261012T065651Z
SUMMARY:Coupling osmosis and mechanics in vertex-based models for plant tis
 sue growth (Guillaume Mestdagh (INRIA Montbonnot))
DESCRIPTION:Who: Guillaume Mestdagh (INRIA Montbonnot)\n\nUnderstanding pla
 nt growth is fundamental to address global challenges such as food securit
 y\, biodiversity\, and soil‑erosion control. The development of plants i
 nvolves many interconnected physical processes\, occurring at various spat
 ial and temporal scales\, making modeling an indispensable complement to e
 xperiments. In particular\, discrete vertex-based models have successfully
  described the coupling between inter-cell water fluxes and mechanical def
 ormations of cell walls\, in response to a prescribed inner water pressure
 .\n\nA two-dimensional vertex-based model represents a group of cells as a
  tiling of polygons\, with the edges between polygons representing cell wa
 lls. Existing vertex-based models postulate a fixed water pressure inside 
 cells as the force driving growth. In reality\, this inner pressure itself
  is the consequence of osmosis\, a chemical process by which water is attr
 acted into cells with a higher concentration of solute. However\, capturin
 g the interplay between mechanics and solute dynamics in plant tissues int
 o one model remains a challenge that requires novel mathematical framework
 s.\n\nIn this talk\, I will present a new approach to couple solute and wa
 ter fluxes with mechanics and growth in vertex-based models. The proposed 
 approach is based on a variational formalism where the system physics is d
 escribed in terms of free energy and dissipation function. After building 
 the model and deriving the evolution equations of the system\, I will show
  that the resulting formulation can be turned into a numerical method. Fin
 ally\, I will illustrate the model properties through a few numerical simu
 lations and discuss its interest for the study of plant growth.\n\nContact
 : Philippe Marmottant\n\n
CATEGORIES:Séminaire labo
CLASS:PUBLIC
TRANSP:OPAQUE
SEQUENCE:0
DTSTART;TZID=Europe/Paris:20260706T110000
DTEND;TZID=Europe/Paris:20260706T120000
CREATED:20260612T135603Z
LAST-MODIFIED:20260622T082129Z
URL;VALUE=URI:https://teamup.com/kspjx8oo4q8mxg7v8h/events/2113582881
X-TEAMUP-WHO:Guillaume Mestdagh (INRIA Montbonnot)
END:VEVENT
BEGIN:VEVENT
UID:TU2112803307
DTSTAMP:20261012T065651Z
SUMMARY:PhD defence: Symmetry breaking in biological tissue studied using b
 ioelectricity (Niloofar Pishkari (MicroTiss))
DESCRIPTION:Who: Niloofar Pishkari (MicroTiss)\n\nCell migration is a funda
 mental biological process that enables organisms to respond to environment
 al stimuli and maintain homeostasis.  Disruptions in this process can lea
 d to functional impairment and disease.  Rather than moving randomly\,  
 many cells migrate directionally in response to external cues\, a behavior
  essential for processes such as morphogenesis\, cancer invasion\, and wou
 nd healing.  Understanding the mechanisms underlying directional migratio
 n\, therefore\, requires investigating physiologically relevant guiding st
 imuli.  Among these\, electric fields represent a precise and biologicall
 y significant cue.  In this study\, we used the SCHEEPDOG platform to app
 ly programmable electric fields of varying intensities to keratocytes and 
 quantitatively analyze their migratory behavior.  Our results show that e
 lectric field stimulation induces robust directional migration while incre
 asing migration speed in an intensity-dependent manner.  Cells initially 
 moving randomly progressively align with the field vector\, with higher fi
 eld strengths accelerating this alignment process.  Notably\, although bo
 th migration speed and alignment dynamics are modulated by field intensity
 \,  the overall geometry of migration trajectories remains unchanged. Cel
 ls initially migrating opposite to the field reorient by executing turns w
 hose size and shape are independent of stimulation strength\, indicating t
 hat turning dynamics are preserved.  A key finding of this work is the di
 stinct role of mitochondrial ATP in regulating directional migration. Inhi
 bition of mitochondrial ATP production impaired steering\, reduced directi
 onal responsiveness\, and disrupted alignment dynamics\, particularly unde
 r weak electric fields.  In contrast\, stronger fields partially compensa
 ted for this deficit\, restoring alignment despite reduced speed and slowe
 r response dynamics.  These results indicate that while mitochondrial ATP
  is not strictly required for basal motility\, it is essential for efficie
 nt reorientation and polarity refinement.  Furthermore\, asymmetric mitoc
 hondrial distribution emerges as an important determinant of cell polarity
 \, suggesting that intracellular energy localization contributes to the sp
 atial coordination of directional migration.  Together\, our findings dem
 onstrate that electrical stimulation can independently tune migration spee
 d and directional alignment without altering intrinsic turning behavior\, 
 and highlight the critical role of cellular bioenergetics in migratory con
 trol.  This work provides new insights into how biophysical cues and meta
 bolic states interact to regulate cell migration.\n\n
CATEGORIES:Soutenances
CLASS:PUBLIC
TRANSP:OPAQUE
SEQUENCE:0
DTSTART;TZID=Europe/Paris:20260709T140000
DTEND;TZID=Europe/Paris:20260709T150000
CREATED:20260611T091737Z
URL;VALUE=URI:https://teamup.com/kspjx8oo4q8mxg7v8h/events/2112803307
X-TEAMUP-WHO:Niloofar Pishkari (MicroTiss)
END:VEVENT
BEGIN:VEVENT
UID:TU2123212121
DTSTAMP:20261012T065651Z
SUMMARY:[Young Researchers Only]: Simulations of confined Brownian motion t
 o salt questioning how water diffuse in PDMS.​ || Developpement of an Op
 to-Electronic Radar in the 0-2 THz Band and its applications. ​ (Elodie 
 MILLAN  - (Post-Doc\, MODI) || Athenais BORDET- (PhD\, LAME)​)
DESCRIPTION:Who: Elodie MILLAN  - (Post-Doc\, MODI) || Athenais BORDET- (Ph
 D\, LAME)​\n\n **Simulations of confined Brownian motion to salt questio
 ning how water diffuse in PDMS.​**\n\n*Elodie MILLAN - (Post-Doc\, MODI)
 *\n\nI'm going to present you my previous work before Liphy and how I swit
 ched from numerical simulations to experiments.​\n\nFirst is about the n
 umerical simulation of confined Brownian motion: stochastic movement has b
 een well-known for 200 years\, until we tried to understand how it is in r
 eal life. How does confinement affect diffusion\, and how can we measure i
 t?​\n\nThe second study is about the emergence of water droplets through
  PDMS. How\, from salt\, can we study water diffusion in a polymer (PDMS)?
 ​\n\n---\n\n**Developpement of an Opto-Electronic Radar in the 0-2 THz B
 and and its applications. ​**\n\n*Athenais BORDET- (PhD\, LAME)​*\n\nT
 he year is 50 BC. The electromagnetic spectrum is entirely occupied by the
  technology. Well not entirely… One small band of indomitable frequencie
 s still holds out against the invaders. And life is not easy for legionari
 es of who garrison the fortified camps of optics and microwave. In this ta
 lk we will explore the generation of Terahertz frequencies starting from o
 ptical sources. We will examine its application in 1D to measure distances
 \, speed and thickness then in 2D with the imagery and spectroscopy applic
 ations. By the end of the talk\, you will be able to defeat the Gaulls. 
 ​\n\n
LOCATION:Conference Room
CATEGORIES:Séminaire des non-permanents
CLASS:PUBLIC
TRANSP:OPAQUE
SEQUENCE:0
DTSTART;TZID=Europe/Paris:20260724T110000
DTEND;TZID=Europe/Paris:20260724T120000
CREATED:20260629T155721Z
LAST-MODIFIED:20260722T134107Z
URL;VALUE=URI:https://teamup.com/kspjx8oo4q8mxg7v8h/events/2123212121
X-TEAMUP-WHO:Elodie MILLAN  - (Post-Doc\, MODI) || Athenais BORDET- (PhD\, 
 LAME)​
X-TEAMUP-WHERE:Conference Room
ATTACH:https://files.teamup.com/16073145/attachment/01KY4ZD85EPMK8MA3464V64
 YA9/Athenais_portrait.png?hash=ac2c858277e91317f058314f72a2c5a7fa7d99c14d0
 55cf86d5aff3b9087dc10
ATTACH:https://files.teamup.com/16073145/attachment/01KY4ZD863X3R8Y9JZW3T2P
 CXT/Elodie_portrait.png?hash=b9a751a1e925229e528465ae8289fb23ef0449dc1035a
 4c4d306e2149440ec78
ATTACH:https://files.teamup.com/16073145/attachment/01KY50Y0VG957TJJZSC4ZTQ
 52P/grap_abstr_1.png?hash=9976c3ea9e5a8d6f8e43906f88ad8cd3ba72a9ad41bb4fb3
 3ed93823066a49cc
END:VEVENT
BEGIN:VEVENT
UID:TU2163988690
DTSTAMP:20261012T065651Z
SUMMARY:Mechanics and geometry of nematic shape-morphing sheets (Daniel Duf
 fy (Cambridge\, UK))
DESCRIPTION:Who: Daniel Duffy (Cambridge\, UK)\n\nThin 'shape-programmed' s
 heets morph into curved shapes when stimulated by heat\, light\, or chemic
 al fuel. Biology is full of intricate examples (leaves\, petals\, etc)\, a
 nd soft synthetic materials such as liquid-crystal elastomers have begun t
 o approach similar levels of richness\, opening doors to bio-inspired soft
  machines. Such machines can lift\, pump\, push\, pull\, . . . etc\, promi
 sing myriad applications including microfluidic components\, deployable st
 ructures\, switchable surfaces\, and robotic actuators. I’ll present wor
 k on nematic shape morphers\, in which the direction of anisotropic deform
 ation is patterned\, while deformation magnitudes are spatially uniform. T
 he focus will be on encoding Gauss curvature\, which imparts mechanical st
 rength to the resultant structures\, as Gauss understood centuries ago. Th
 e patterned deformation direction must typically be chosen at the time of 
 manufacture\, leading to a design limitation: the morphing sheet can only 
 realise a single target shape. I will then show how to overcome this limit
 ation\, by varying the deformation magnitude (e.g. via patterned illuminat
 ion) in both space and time. This new paradigm allows a single physical sa
 mple to be morphed into arbitrarily many different shapes at will. Thus a 
 designer can specify entire time-dependent motions of the sheet. This capa
 bility could greatly increase the versatility of soft robots\, e.g. when o
 perating in confined environments or performing complex tasks. Furthermore
 \, it facilitates swimming\, which typically requires non-reciprocal motio
 n. More generally\, it unlocks the full potential of shape-morphing sheets
 \, allowing them to progress from being merely functional to being truly m
 ulti-functional.\n\nContact: Emmanuel Siéfert\n\n
CATEGORIES:Séminaire labo
CLASS:PUBLIC
TRANSP:OPAQUE
SEQUENCE:0
DTSTART;TZID=Europe/Paris:20260914T110000
DTEND;TZID=Europe/Paris:20260914T120000
CREATED:20260907T090316Z
LAST-MODIFIED:20260907T120538Z
URL;VALUE=URI:https://teamup.com/kspjx8oo4q8mxg7v8h/events/2163988690
X-TEAMUP-WHO:Daniel Duffy (Cambridge\, UK)
END:VEVENT
BEGIN:VEVENT
UID:TU2110937622
DTSTAMP:20261012T065651Z
SUMMARY:Thermodynamic Wisdom: Decolonising Thermodynamics in the Undergradu
 ate Physics Curriculum (Wilson Poon (University of Edinburgh\, UK))
DESCRIPTION:Who: Wilson Poon (University of Edinburgh\, UK)\n\nAfter descri
 bing the way parts of thermodynamics first arose in the context of colonia
 l and then imperial commerce\, I will go on to argue that bringing student
 s’ attention to this problematic social milieu should be part of the phy
 sics curriculum at university level because the goal of higher education s
 hould go beyond imparting knowledge to engendering wisdom. I then describe
 s how the author has sought to do this by introducing several elements int
 o the author’s course that\, together\, should leave a different ‘afte
 rtaste’ with the students compared to a traditional approach. Perhaps th
 e most interesting result of my effort was to have engendered conversation
 s between students outside of the classroom and the examination hall. I wi
 ll make the case that engendering quality conversations is key to the cult
 ivation of wisdom. The author concludes by briefly surveying related initi
 atives in my department and draws a general lesson from this collective en
 deavour.\n\nContact: Samantha Micciulla\n\n
CATEGORIES:Séminaire labo
CLASS:PUBLIC
TRANSP:OPAQUE
SEQUENCE:0
DTSTART;TZID=Europe/Paris:20260917T110000
DTEND;TZID=Europe/Paris:20260917T120000
CREATED:20260608T150257Z
LAST-MODIFIED:20260903T090047Z
URL;VALUE=URI:https://teamup.com/kspjx8oo4q8mxg7v8h/events/2110937622
X-TEAMUP-WHO:Wilson Poon (University of Edinburgh\, UK)
END:VEVENT
BEGIN:VEVENT
UID:TU2115011011
DTSTAMP:20261012T065651Z
SUMMARY:Cooking crystalline candies and the ductile to brittle transition i
 n concentrated suspensions (Wilson Poon (University of Edinburgh\, UK))
DESCRIPTION:Who: Wilson Poon (University of Edinburgh\, UK)\n\nThe existenc
 e and origin of the ductile to brittle transition in non-Brownian suspensi
 ons and pastes is under-explored despite the ubiquity of such materials in
  practical applications. We demonstrate the phenomenon in candies of sugar
  crystals in a water-protein-fat matrix prepared by boiling a sugar-cream-
 butter mixture (known as `fudge' in some countries). As cooking time or fi
 nal cooking temperature increases\, we observe a transition from a fluid t
 o a ductile solid\, then to a brittle solid that abruptly fractures in com
 pression. We propose that this is driven by rising solid sugar crystal vol
 ume fraction\, and indeed find the same sequence of behaviour in a suspens
 ion of non-Brownian calcite particles as the solid fraction moves from fri
 ctional jamming to random close packing. Particle-based simulations reveal
  the sensitivity of the observed phenomenon to boundary conditions.\n\nCon
 tact: Samantha Micciulla\n\n
CATEGORIES:Séminaire labo
CLASS:PUBLIC
TRANSP:OPAQUE
SEQUENCE:0
DTSTART;TZID=Europe/Paris:20260918T110000
DTEND;TZID=Europe/Paris:20260918T120000
CREATED:20260615T150828Z
LAST-MODIFIED:20260826T142844Z
URL;VALUE=URI:https://teamup.com/kspjx8oo4q8mxg7v8h/events/2115011011
X-TEAMUP-WHO:Wilson Poon (University of Edinburgh\, UK)
END:VEVENT
BEGIN:VEVENT
UID:TU2166311205
DTSTAMP:20261012T065651Z
SUMMARY:[Young Researchers Only]: CO₂ diffusion in CALF-20: From small to
  not-so-small scale. \n || Intermittent Brownian Motion of Fluid Transport
  in Nanoporous Materials and its Surface Resistance: Using Molecular Simul
 ations. (Pablo GRISANTI  - (PhD\, PSM) || Subhadeep DASGUPTA - (Post-Doc\,
  PSM)​)
DESCRIPTION:Who: Pablo GRISANTI  - (PhD\, PSM) || Subhadeep DASGUPTA - (Pos
 t-Doc\, PSM)​\n\n**CO₂ diffusion in CALF-20: From small to not-so-smal
 l scale.**\n\n*Pablo GRISANTI - (PhD\, PSM)*\n\nEnvironmental concerns hav
 e driven growing interest in CO₂ capture and storage technologies. Nanop
 orous materials offer a promising solution in this field\, particularly Me
 tal-Organic Frameworks (MOFs)\, owing to their structural versatility and 
 tunable properties. However\, under realistic conditions these materials m
 ust operate in the presence of water\, which can be detrimental to the ads
 orption process. In this work\, Molecular Dynamics (MD) simulations are em
 ployed to study bulk CO₂ diffusion and how it is affected by the presenc
 e of water. The study focuses on CALF-20\, a prototypical MOF with sub-nan
 ometer cages and great potential for CO₂ capture applications. Furthermo
 re\, uptake simulations in a CALF-20 slab are performed and compared with 
 a numerical grid model that enables fast diffusion calculations of CO₂ a
 t micrometer scale.\n\n---\n\n**Intermittent Brownian Motion of Fluid Tran
 sport in Nanoporous Materials and its Surface Resistance: Using Molecular 
 Simulations.**\n\n*Subhadeep DASGUPTA- (Post-Doc\, PSM)​*\n\nNanoporous 
 solids\, like metal-organic frameworks and zeolites\, are promising candid
 ates for fluid transport mechanisms\, in complex separation processes. The
  entry-exit of penetrants across surface boundaries is still not a well st
 udied dynamical process\, and our understanding is only at a nascent stage
 . Using molecular simulations (grand canonical Monte Carlo\, and all-atom 
 molecular dynamics) of CO2 in zeolite (MFI-type silica) we study the inter
 mittency of gases diffusing across the host solid surface. In this work\, 
 we will present how the effective surface experienced by fluids may grow b
 oth inwards or outwards from the geometrical edge. We study the relations 
 between gas diffusivity\, width of the interface\, and the fractional occu
 pancy by considering the zeolite to be in series or parallel to the dynami
 cs. The intermittency at the surface motivates us to study surface residen
 ce and relocation times\, and then proceed to understand their statistics 
 based on physical laws. We quantify the intermittency based on survival pr
 obabilities\, rate of transition\, and compare the analytical spectral den
 sity against computationally obtained results\n\n
LOCATION:Conference Room
CATEGORIES:Séminaire des non-permanents
CLASS:PUBLIC
TRANSP:OPAQUE
SEQUENCE:0
DTSTART;TZID=Europe/Paris:20260918T133000
DTEND;TZID=Europe/Paris:20260918T150000
CREATED:20260910T134043Z
LAST-MODIFIED:20260917T123522Z
URL;VALUE=URI:https://teamup.com/kspjx8oo4q8mxg7v8h/events/2166311205
X-TEAMUP-WHO:Pablo GRISANTI  - (PhD\, PSM) || Subhadeep DASGUPTA - (Post-Do
 c\, PSM)​
X-TEAMUP-WHERE:Conference Room
ATTACH:https://files.teamup.com/16073145/attachment/01M2QG7BRZ295EZ7J2Q8MK0
 DEP/Subhadeep_pic.jpg?hash=26dab6e8bd0b0ea74d5138d9e4455c92a4b2bd9a1cf431e
 0fc4180b0669d9955
ATTACH:https://files.teamup.com/16073145/attachment/01M2QG7BSG2FZ18H3W0BFV0
 END/pic_Pablo_GRISANTI.png?hash=f9d573a77eb013a428f9a149d17f0d9b2925bc5478
 ba149d18f42f300e499263
ATTACH:https://files.teamup.com/16073145/attachment/01M2QNTKPZMP4MG16KW65MT
 8JZ/grap_abstr_sept_1.png?hash=04863338c445ed7c203ed4b187527454eb418e0390e
 e0d873fe716b2c76ee990
END:VEVENT
BEGIN:VEVENT
UID:TU2113445751
DTSTAMP:20261012T065651Z
SUMMARY:Nanoconfined water within topologically distinct mesophases: an ato
 mistic and ultrafast study (Eva Maria Zunzunegui-Bru (LEPMI\, Grenoble))
DESCRIPTION:Who: Eva Maria Zunzunegui-Bru (LEPMI\, Grenoble)\n\nThe rapid a
 dvancement in life and technological processes in our era demands continuo
 us optimization\, underpinned by a fundamental understanding of the mechan
 isms that rule their performance. Specifically\, at the microscale\, nanoc
 onfined water presents properties fundamentally distinct from its bulk cou
 nterpart\, due to the disruption of its hydrogen-bond network. This disrup
 tion is influenced by the chemical nature\, level of confinement\, and geo
 metrical and topological features of confinement media\, and its understan
 ding unlocks potential innovative applications.  \nIn this talk\, I will d
 iscuss my work on lipid cubic mesophases — pivotal in biochemical\, phar
 maceutical\, food\, and material science applications— whose intricate t
 opological and geometrical environment makes their atomic-scale characteri
 zation a daunting challenge. We have advanced in this quest\, presenting a
  novel protocol for atomistic simulations whose synergistic combination wi
 th terahertz absorption spectroscopy — resolving the picosecond timescal
 e — provides a thorough characterization of the disruption of the hydrog
 en-bond network of water. This framework deepens the understanding of the 
 structure and dynamics of water within topologically distinct monolinolein
  and phytantriol mesophases\, across temperatures\, confinement levels\, a
 nd interactions with guest molecules.\n\nContact: Simon Gravelle\n\n
CATEGORIES:Séminaire labo
CLASS:PUBLIC
TRANSP:OPAQUE
SEQUENCE:0
DTSTART;TZID=Europe/Paris:20260921T110000
DTEND;TZID=Europe/Paris:20260921T120000
CREATED:20260612T092842Z
LAST-MODIFIED:20260914T114730Z
URL;VALUE=URI:https://teamup.com/kspjx8oo4q8mxg7v8h/events/2113445751
X-TEAMUP-WHO:Eva Maria Zunzunegui-Bru (LEPMI\, Grenoble)
END:VEVENT
BEGIN:VEVENT
UID:TU2169969298
DTSTAMP:20261012T065651Z
SUMMARY:Odd collective phenomena in light-driven microalgae (Isabelle Eisen
 mann (University of Amsterdam\, the Netherlands))
DESCRIPTION:Who: Isabelle Eisenmann (University of Amsterdam\, the Netherla
 nds)\n\nFor motile microalgae\, light is both a source of energy and a cue
  to orient in space. Their response to light can teach us about internal m
 echanisms\, such as photosynthesis and photoprotection. On the other hand\
 , physicists see them as active particles controllable by light\, and use 
 them to explore new active matter phenomena.\n\nIn the first part of this 
 talk\, I will briefly describe several collective phenomena that emerge in
  suspensions of swimming microalgae - mediated by shading\, hydrodynamic o
 r chemical interactions\, and discuss the biological insights they can pro
 vide.\n\nI will then describe recent results on odd active matter\, using 
 a novel experimental system of spinning microalgae. The cells self-assembl
 e into a percolating chiral fluid as their density increases. Strikingly\,
  microscopic and macroscopic vorticity have opposite signs: while individu
 al cells spin clockwise\, clusters orbit counterclockwise. Combining exper
 iments and theory\, we show that this chirality inversion is a direct cons
 equence of the particles’ active (i.e. internally driven) nature. We the
 n investigate odd transport on this percolating network. These experiments
  show how a living chiral fluid can behave fundamentally differently from 
 an externally driven one.\n\nContact: Salima Rafaï\n\n
CATEGORIES:Séminaire labo
CLASS:PUBLIC
TRANSP:OPAQUE
SEQUENCE:0
DTSTART;TZID=Europe/Paris:20260928T110000
DTEND;TZID=Europe/Paris:20260928T120000
CREATED:20260916T122406Z
LAST-MODIFIED:20260921T084617Z
URL;VALUE=URI:https://teamup.com/kspjx8oo4q8mxg7v8h/events/2169969298
X-TEAMUP-WHO:Isabelle Eisenmann (University of Amsterdam\, the Netherlands)
END:VEVENT
BEGIN:VEVENT
UID:TU2072701857
DTSTAMP:20261012T065651Z
SUMMARY:Morphing without Muscles: Hydraulic Actuation in Nature (Joël Mart
 helot (IUSTI\, Marseille))
DESCRIPTION:Who: Joël Marthelot (IUSTI\, Marseille)\n\nProgramming the mov
 ement of soft structures that expand\, morph\, or passively respond to ext
 ernal stimuli remains a significant challenge for conventional engineering
  approaches. In contrast\, the natural world offers a rich source of inspi
 ration\, particularly among plants and insects. Plants\, with their limite
 d motility\, have evolved ingenious strategies to move or reposition parts
  of their structure\, while holometabolous insects undergo dramatic metamo
 rphoses\, transforming from larval to adult forms.\n\nA particularly strik
 ing example occurs during the final stage of metamorphosis in insects: the
  rapid deployment of wings immediately after emerging from the pupal case.
  In Drosophila melanogaster\, this wing expansion happens within minutes\,
  a remarkable feat at the scale of a developing organ. This phenomenon app
 ears to be driven primarily by physical mechanisms\, notably hydraulic act
 uation. In this talk\, I will explore the hydraulic mechanisms driving win
 g expansion in Drosophila\, presenting a simple mechanical model that capt
 ures the essential features of this process. I will then show how\, in Mim
 osa Pudica\, local water transfer between cells and surrounding air-filled
  cavities provides an effective strategy for generating rapid hydraulic mo
 vements\, circumventing the limitations of long-distance water transport.\
 n\nContact: Elsa Bayart\n\n
CATEGORIES:Séminaire labo
CLASS:PUBLIC
TRANSP:OPAQUE
SEQUENCE:0
DTSTART;TZID=Europe/Paris:20261012T110000
DTEND;TZID=Europe/Paris:20261012T120000
CREATED:20260403T170534Z
LAST-MODIFIED:20260930T133114Z
URL;VALUE=URI:https://teamup.com/kspjx8oo4q8mxg7v8h/events/2072701857
X-TEAMUP-WHO:Joël Marthelot (IUSTI\, Marseille)
END:VEVENT
BEGIN:VEVENT
UID:TU2161824435
DTSTAMP:20261012T065651Z
SUMMARY:HDR Romain M (Romain M)
DESCRIPTION:Who: Romain M\n\n
CATEGORIES:Soutenances
CLASS:PUBLIC
TRANSP:OPAQUE
SEQUENCE:0
DTSTART;TZID=Europe/Paris:20261014T140000
DTEND;TZID=Europe/Paris:20261014T160000
CREATED:20260903T101649Z
URL;VALUE=URI:https://teamup.com/kspjx8oo4q8mxg7v8h/events/2161824435
X-TEAMUP-WHO:Romain M
END:VEVENT
BEGIN:VEVENT
UID:TU2172681213
DTSTAMP:20261012T065651Z
SUMMARY:On survival and gene expression during E. coli starvation (Thomas J
 ulou (Biozentrum\, Basel\, Switzerland))
DESCRIPTION:Who: Thomas Julou (Biozentrum\, Basel\, Switzerland)\n\nIt is w
 idely believed that bacteria spend most of their life in a non-growing sta
 te. However\, despite major clinical and ecological implications\, very li
 ttle is known about what controls survival and what determines bacterial p
 henotypes when nutrients are depleted. In this talk\, I will report on sev
 eral aspects of bacterial starvation. First\, we showed that\, like the gr
 owth rate\, the mortality rate during carbon starvation depends critically
  on subtle differences in environmental conditions. Second\, we found that
  phenotypes are shaped early on upon entry into starvation and last during
  several days. For this\, using a newly designed microfluidic device in co
 mbination with fluorescence time-lapse microscopy and automated image anal
 ysis\, we measured gene expression during starvation by quantifying volumi
 c production of proteins across time in single cells. By combining the obs
 erved time-dependent protein production and independently measured degrada
 tion rates\, we show how protein concentrations deep into stationary phase
  are determined mainly by the expression dynamics in the first 10 hours of
  starvation. Finally\, using perturbation experiments in which gene expres
 sion is inhibited for different periods\, we also established that both su
 rvival and tolerance to stress during starvation depend strongly on this e
 arly expression program. Taken together\, these results provide a first qu
 antitative picture of cell maintenance\, and provide a starting point for 
 studying the emergence of specific phenotypes when nutrients become scarce
 .\n\nContact: Natale Scaramozzino\n\n
CATEGORIES:Séminaire labo
CLASS:PUBLIC
TRANSP:OPAQUE
SEQUENCE:0
DTSTART;TZID=Europe/Paris:20261019T110000
DTEND;TZID=Europe/Paris:20261019T120000
CREATED:20260921T083429Z
LAST-MODIFIED:20260923T115228Z
URL;VALUE=URI:https://teamup.com/kspjx8oo4q8mxg7v8h/events/2172681213
X-TEAMUP-WHO:Thomas Julou (Biozentrum\, Basel\, Switzerland)
END:VEVENT
BEGIN:VEVENT
UID:TU2184103190
DTSTAMP:20261012T065651Z
SUMMARY:Young researchers Seminar:
CATEGORIES:Séminaire des non-permanents
CLASS:PUBLIC
TRANSP:OPAQUE
SEQUENCE:0
DTSTART;TZID=Europe/Paris:20261020T110000
DTEND;TZID=Europe/Paris:20261020T120000
CREATED:20261009T074106Z
URL;VALUE=URI:https://teamup.com/kspjx8oo4q8mxg7v8h/events/2184103190
END:VEVENT
BEGIN:VEVENT
UID:TU2145404420
DTSTAMP:20261012T065651Z
SUMMARY:TBA (Arthur Goetschy (Institut Langevin\, ESPCI Paris))
DESCRIPTION:Who: Arthur Goetschy (Institut Langevin\, ESPCI Paris)\n\nConta
 ct: Dorian Bouchet\n\n
CATEGORIES:Séminaire labo
CLASS:PUBLIC
TRANSP:OPAQUE
SEQUENCE:0
DTSTART;TZID=Europe/Paris:20261102T110000
DTEND;TZID=Europe/Paris:20261102T120000
CREATED:20260806T170550Z
LAST-MODIFIED:20260923T115253Z
URL;VALUE=URI:https://teamup.com/kspjx8oo4q8mxg7v8h/events/2145404420
X-TEAMUP-WHO:Arthur Goetschy (Institut Langevin\, ESPCI Paris)
END:VEVENT
BEGIN:VEVENT
UID:TU2182133571
DTSTAMP:20261012T065651Z
SUMMARY:TBA (Vincenzo Schimmenti (MPI-PKS Dresden\, Germany))
DESCRIPTION:Who: Vincenzo Schimmenti (MPI-PKS Dresden\, Germany)\n\nContact
 : Jocelyn Etienne\n\n
CATEGORIES:Séminaire labo
CLASS:PUBLIC
TRANSP:OPAQUE
SEQUENCE:0
DTSTART;TZID=Europe/Paris:20261116T110000
DTEND;TZID=Europe/Paris:20261116T120000
CREATED:20261006T123935Z
URL;VALUE=URI:https://teamup.com/kspjx8oo4q8mxg7v8h/events/2182133571
X-TEAMUP-WHO:Vincenzo Schimmenti (MPI-PKS Dresden\, Germany)
END:VEVENT
BEGIN:VEVENT
UID:TU2173643997
DTSTAMP:20261012T065651Z
SUMMARY:Sensibilisation aux handicaps
DESCRIPTION:Contacts: Samantha Micciulla et Romain Mari\n\n
CATEGORIES:Séminaire labo
CLASS:PUBLIC
TRANSP:OPAQUE
SEQUENCE:0
DTSTART;TZID=Europe/Paris:20261123T110000
DTEND;TZID=Europe/Paris:20261123T120000
CREATED:20260922T144038Z
URL;VALUE=URI:https://teamup.com/kspjx8oo4q8mxg7v8h/events/2173643997
END:VEVENT
BEGIN:VEVENT
UID:TU2178111756
DTSTAMP:20261012T065651Z
SUMMARY:TBA (Federico Ghimenti (Stanford University))
DESCRIPTION:Who: Federico Ghimenti (Stanford University)\n\nContact: Misaki
  Ozawa\n\n
CATEGORIES:Séminaire labo
CLASS:PUBLIC
TRANSP:OPAQUE
SEQUENCE:0
DTSTART;TZID=Europe/Paris:20261130T110000
DTEND;TZID=Europe/Paris:20261130T120000
CREATED:20260929T190838Z
URL;VALUE=URI:https://teamup.com/kspjx8oo4q8mxg7v8h/events/2178111756
X-TEAMUP-WHO:Federico Ghimenti (Stanford University)
END:VEVENT
BEGIN:VEVENT
UID:TU2155159828
DTSTAMP:20261012T065651Z
SUMMARY:TBA (Antoine Allard (LOMA\, Université de Bordeaux))
DESCRIPTION:Who: Antoine Allard (LOMA\, Université de Bordeaux)\n\nContact
 : Manon Valet\n\n
CATEGORIES:Séminaire labo
CLASS:PUBLIC
TRANSP:OPAQUE
SEQUENCE:0
DTSTART;TZID=Europe/Paris:20270111T110000
DTEND;TZID=Europe/Paris:20270111T120000
CREATED:20260824T061616Z
URL;VALUE=URI:https://teamup.com/kspjx8oo4q8mxg7v8h/events/2155159828
X-TEAMUP-WHO:Antoine Allard (LOMA\, Université de Bordeaux)
END:VEVENT
BEGIN:VEVENT
UID:TU2132857271
DTSTAMP:20261012T065651Z
SUMMARY:TBA (Sangwoo Kim (EPFL\, Switzerland))
DESCRIPTION:Who: Sangwoo Kim (EPFL\, Switzerland)\n\nContact: Manon Valet\n
 \n
CATEGORIES:Séminaire labo
CLASS:PUBLIC
TRANSP:OPAQUE
SEQUENCE:0
DTSTART;TZID=Europe/Paris:20270118T110000
DTEND;TZID=Europe/Paris:20270118T120000
CREATED:20260716T083030Z
LAST-MODIFIED:20260824T062114Z
URL;VALUE=URI:https://teamup.com/kspjx8oo4q8mxg7v8h/events/2132857271
X-TEAMUP-WHO:Sangwoo Kim (EPFL\, Switzerland)
END:VEVENT
BEGIN:VEVENT
UID:TU2185514898
DTSTAMP:20261012T065651Z
SUMMARY:TBA (Jean Baudry (ESPCI Paris))
DESCRIPTION:Who: Jean Baudry (ESPCI Paris)\n\nContact: Natale Scaramozzino\
 n\n
CATEGORIES:Séminaire labo
CLASS:PUBLIC
TRANSP:OPAQUE
SEQUENCE:0
DTSTART;TZID=Europe/Paris:20270201T110000
DTEND;TZID=Europe/Paris:20270201T120000
CREATED:20261012T065414Z
URL;VALUE=URI:https://teamup.com/kspjx8oo4q8mxg7v8h/events/2185514898
X-TEAMUP-WHO:Jean Baudry (ESPCI Paris)
END:VEVENT
END:VCALENDAR