LJP at a glance

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07 DEC

Spontaneous propulsion of an isotropic colloid in a phase-separating environment By Pierre Illien (Sorbonne U) December 7, 2021 at 11:00AM - Salle de séminaires 5ème étage, Tour 32-33 The motion of active colloids is generally achieved through their anisotropy, as exemplified by Janus colloids. Recently, there was a growing interest in the propulsion of isotropic colloids, ...

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  Machining microstructures

  Micromachining has become a serious alternative to soft photolithography to achieve surfaces with a controlled topography at micrometric scales. At Jean Perrin, we micro-machine micro-channel microstructures for microfluidics and surfaces decorated with pillars and spherical caps for studying mechanotransduction.

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  Lightsheet fluorescence microscopy

  With this microscopy technique, thin slices of the sample are illuminated perpendicularly to the direction of observation. It enables a high data thoughput and reduces the photodamage and stress induced on a living sample. At Jean Perrin, we combine lightsheet microscopy with calcium imaging to monitor the activity of tens of thousands of neurons in the zebrafish brain.

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  Millifluidics for biology

  Millifluidic devices of molded PDMS allows to impose different channel geometries and thus to fine-tune the system hydrodynamical properties. The preparation is simple, fast and reproducible. At Jean Perrin, we use this technique to study the impact of physical parameters on the development of bacterial biofilms.

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  Optical fibers for diagnostics

  Transfering table-top multiphoton microscopy setups to clinical endoscopy is a challenge requiring multiple approaches. At Jean Perrin, we use proximal scanning of a multicore image-guide compatible with standard endoscopes and the distal scanning of a single microstructured fiber.

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News

22
SEP 2021

LJP Pétanque Tournament 2021 - The winners
This is the winning team of the traditional petanque tournament at the Arènes de Lutece!

16
SEP 2021

The ciliated structure as a particle detector
Actu Sorbonne Université

18
AUG 2021

Clement Nizak joins LJP
Clement Nizak recently joined the Laboratoire Jean Perrin, and he will take part to Biophysics of ...

26
JUL 2021

Jean Perrin in pieces
Almost done!

31
MAR 2021

Thesis defense - Benjamin Gallois
I am pleased to invite you to my thesis defense which will take place on Wednesday, March 31 at 2:00 pm and ...

05
NOV 2020

Séminaire/débat 'Monde fini': Allons-nous continuer la recherche scientifique ?'
Le prochain séminaire/débat ‘Recherche dans un monde fini’ aura lieu jeudi 5/11 ...

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