We combine latest developments in cryo sample preparation and imaging by electron microscopies (cryo-FIB/SEM and cryo-TEM) to observe biomolecules of interest (ribosomes, carboxysomes, viruses, nuclear pore complexes…) within their cellular or tissular environment. Using cryo-electron tomography followed by image analysis, we are able to determine their 3D structures with near atomic resolution. Altogether, these methodologies pave the way for in situ structural biology studies.

Gene expression, DNA damage, DNA structure and DNA-binding proteins structures, super-resolution (SMLM, RIM, SIM, Airyscan), single particle tracking, photo-manipulation, Correlative Light Electron Microscopy (CLEM)

Inflammatory and cardiovascular diseases are complex, multifactorial conditions that affect multiple organs and cellular components. To tackle these intricate biological challenges, we employ and advance multi-modal and multi-scale imaging and flow cytometry pipelines. These pipelines include the entire process from sample preparation, image acquisition to image analysis and quantification. Our workflows are adpated to various tissues, including the heart, kidneys, blood vessels, muscles, liver and adipose tissue. They operate across scales ranging from whole organs to subcellular levels, employing techniques such as widefield imaging, confocal spectral imaging, high-resolution imaging (Airyscan, Opera Phenix), high-content imaging (Axioscan 7), and cytometry-based analysis (spectral, sorting, and analysis).

Light-sheet imaging of fixed and live samples. We can afford (cells, IPS, organoïds, hydra, fish, human tissues) because the microscope is installed in Biology Safety Level 2

:Service, Whole organ, Thick tissue cutting 500µm, Immuno-labeling

Full pipeline support on light sheet and biphoton imaging (from sample prep and tissue clearing to imaging)

High-Throughput Light Microscopy for Organoids: Preparation, Imaging (spinning disk; CLSM; 2-photon) and Analysis

Multidirectional illumination for transparent living samples
(Alpha3 facility edition Phase View) and XXL chamber for transparent samples (Ultramicroscope Blaze, Milteniy BioTech)

X-ray Microtomography of large samples (1mm up to 30cm in diameter)
(Key words : 3D volumetric acquisition; large samples; non-invasive inspection; tomodensitometry)

Volumetric electron microscopy : from sample preparation (chemical fixation), to imaging & data processing
(Key-words: SBF, Array-tomography, µCT, micro-wave, nanotomy)

Live Imaging and molecular dynamics for cell, organoids, tissue and embryo : from sample preparation with access to a L2 cell culture room, to microscopy and data analysis
(Key words : spinning disk, lattice light sheet, widefield, LightSheet, FRAP, photoconversion, FCS, spot variation FCS, TIRF, single molecule, FRET, FLIM))

We work on mouse models (embryos at different stages, mouse organs, tumor samples) with solvent based clearing methods (iDisco modified, home made protocols depending on the samples).