Philippe Marmottant
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View article: Reversible bending of U-shaped plant petioles under dehydration
Reversible bending of U-shaped plant petioles under dehydration Open
View article: In situ cavitation bubble manometry reveals a lack of light-activated guard cell turgor modulation in bryophytes
In situ cavitation bubble manometry reveals a lack of light-activated guard cell turgor modulation in bryophytes Open
Diversification of plant hydraulic architecture and stomatal function coincides with radical changes in the Earth’s atmosphere over the past 400 my. Due to shared stomatal anatomy with the earliest land plants, bryophyte stomatal behavior …
View article: Bubble removal in microfluidic channels surrounded by gas-permeable media: experiments and a predictive model
Bubble removal in microfluidic channels surrounded by gas-permeable media: experiments and a predictive model Open
Imbibition of a wetting liquid in five dead-end channels. Air is trapped in each channel (dark regions) and progressively expelled by an advancing meniscus (visible in the three bottom channels).
View article: Near-field acoustic imaging with a caged bubble
Near-field acoustic imaging with a caged bubble Open
View article: Embolism propagation in <i>Adiantum</i> leaves and in a biomimetic system with constrictions
Embolism propagation in <i>Adiantum</i> leaves and in a biomimetic system with constrictions Open
Drought poses a significant threat to forest survival worldwide by potentially generating air bubbles that obstruct sap transport within plants’ hydraulic systems. However, the detailed mechanism of air entry and propagation at the scale o…
View article: Large vortices from soft vibrations
Large vortices from soft vibrations Open
Steady streaming is a peculiar flow, induced by the oscillation of an object with respect to the fluid in which it is embedded. While the oscillation amplitude may be extremely small, the nonlinearity due to fluid inertia gives rise to thi…
View article: Elastohydrodynamic interactions in soft hydraulic knots
Elastohydrodynamic interactions in soft hydraulic knots Open
Soft intertwined channel systems are frequently found in fluid flow networks in nature. The passage geometry of these systems can deform due to fluid flow, which can cause the relationship between flow rate and pressure drop to deviate fro…
View article: The spreading of air embolism in tree leaves: High speed imaging
The spreading of air embolism in tree leaves: High speed imaging Open
International audience
View article: Air invasion in a biomimetic leaf-on-chip
Air invasion in a biomimetic leaf-on-chip Open
International audience
View article: Comparative Analysis of Embolism Dynamics in Biomimetic Models and Adiantum Leaves
Comparative Analysis of Embolism Dynamics in Biomimetic Models and Adiantum Leaves Open
International audience
View article: Air invasion in a transpiring biomimetic leaf-on-chip
Air invasion in a transpiring biomimetic leaf-on-chip Open
International audience
View article: Devenir de l'université face aux enjeux socio-écologiques : résultats de l'enquête UGA2024
Devenir de l'université face aux enjeux socio-écologiques : résultats de l'enquête UGA2024 Open
Démarche et méthodeDepuis plusieurs années les universités sont encouragées à engager une réflexion de fond pour faire évoluer l'enseignement et la recherche face aux enjeux des transitions socio-écologique. Parmi ces encouragements figure…
View article: Elastohydrodynamic interactions in soft hydraulic knots
Elastohydrodynamic interactions in soft hydraulic knots Open
Soft intertwined channel systems are frequently found in fluid flow networks in nature. The passage geometry of these systems can deform due to fluid flow, which can cause the relationship between flow rate and pressure drop to deviate fro…
View article: Acoustic tokamak with strongly coupled toroidal bubbles
Acoustic tokamak with strongly coupled toroidal bubbles Open
Gas bubbles stabilized in toroidal 3D-printed cages are good acoustic resonators with an unusual topology. We arrange them in a circular array to obtain what we call an "acoustic tokamak" because of the torus shape of the whole array. We d…
View article: Biomimetic leaves to study embolism
Biomimetic leaves to study embolism Open
National audience
View article: Acoustic Resonance Frequencies of Underwater Toroidal Bubbles
Acoustic Resonance Frequencies of Underwater Toroidal Bubbles Open
Underwater bubbles display an acoustic resonance frequency close to spherical ones. In order to obtain a resonance significantly deviating from the spherical case, we stabilize bubbles in toroidal frames, resulting in bubbles which can be …
View article: Intermittent air invasion in pervaporating compliant microchannels
Intermittent air invasion in pervaporating compliant microchannels Open
We explore air invasion in a dead-end compliant water-filled microchannel containing a constriction. The phenomenon is driven by the pervaporation of the liquid present in the channel through the surrounding medium. The penetration is inte…
View article: Embryo-scale epithelial buckling forms a propagating furrow that initiates gastrulation
Embryo-scale epithelial buckling forms a propagating furrow that initiates gastrulation Open
View article: Data for Embryo-scale epithelial buckling forms a propagating furrow that initiates gastrulation
Data for Embryo-scale epithelial buckling forms a propagating furrow that initiates gastrulation Open
This is the data and code corresponding to Embryo-scale epithelial buckling forms a propagating furrow that initiates gastrulation, Nature Comms. 13:3348. Code The file Surface_Evolver_script.txt …
View article: Data for Embryo-scale epithelial buckling forms a propagating furrow that initiates gastrulation
Data for Embryo-scale epithelial buckling forms a propagating furrow that initiates gastrulation Open
This is the data and code corresponding to Embryo-scale epithelial buckling forms a propagating furrow that initiates gastrulation, Nature Comms. 13:3348. Code The file Surface_Evolver_script.txt …
View article: Data for Embryo-scale epithelial buckling forms a propagating furrow that initiates gastrulation
Data for Embryo-scale epithelial buckling forms a propagating furrow that initiates gastrulation Open
This is the data and code corresponding to Embryo-scale epithelial buckling forms a propagating furrow that initiates gastrulation, Nature Comms. 13:3348. Code The file Surface_Evolver_script.txt …
View article: Embryo-scale epithelial buckling forms a propagating furrow that initiates gastrulation
Embryo-scale epithelial buckling forms a propagating furrow that initiates gastrulation Open
Cell apical constriction driven by actomyosin contraction forces is a conserved mechanism during tissue folding in embryo development. While much effort has been made to better understand the molecular mechanisms responsible for apical con…
View article: Pervaporation-induced drying in networks of channels of variable width
Pervaporation-induced drying in networks of channels of variable width Open
View article: Polyhedral Bubble Vibrations
Polyhedral Bubble Vibrations Open
Underwater bubbles are extremely good acoustic resonators, but are freely evolving and dissolving. Recently it was found that bubbles can be stabilized in frames, but the influence of the frame shape is still undocumented. Here we first ex…
View article: Drying by pervaporation in elementary channel networks
Drying by pervaporation in elementary channel networks Open
View article: Le chant des poissons
Le chant des poissons Open
National audience
View article: Acoustic interaction between 3D fabricated cubic bubbles
Acoustic interaction between 3D fabricated cubic bubbles Open
ĂSpherical bubbles are notoriously difficult to hold in specific arrangements in water and tend to dissolve over time. Here, using stereolithographic printing, we built an assembly of millimetric cubic frames overcoming these limitations. …
View article: Acoustic interaction between 3D-fabricated cubic bubbles
Acoustic interaction between 3D-fabricated cubic bubbles Open
Spherical bubbles are difficult to hold in specific arrangements and tend to dissolve in water over time. Using 3D-fabricated cubic frames we trap and stabilize bubbles that still oscillate under acoustic excitation.
View article: Acoustics of Cubic Bubbles: Six Coupled Oscillators
Acoustics of Cubic Bubbles: Six Coupled Oscillators Open
We introduce cubic bubbles that are pinned to 3D printed millimetric frames immersed in water. Cubic bubbles are more stable over time and space than standard spherical bubbles, while still allowing large oscillations of their faces. We fi…
View article: Multi-directional bubble generated streaming flows
Multi-directional bubble generated streaming flows Open