Member of C2RT (Center for Resources and Research in Technology) the Unit for service and technology in ultra-structural bio-imaging (UBI) at Pasteur provides technical and scientific support in electron microscopy, mainly, but not exclusively, to the Pasteur community, analyzing host-pathogen interactions at the ultra-structural level. Our equipment enables us to do state-of-the-art EM for life sciences that includes three dimensional EM by tomography and focused ion beam SEM. The ultrapole is run by ten members (eight engineers and two technicians), each specialized in certain techniques. We put a big emphasis on correlate light- and electron microscopy to study key (rare events) of host-pathogen interactions and we have designed several protocols to combine room temperature LM and cryo-LM with FIB-SEM, cryo-SEM and cryo-tomography.
The UBI also has a small research group focusing on large DNA-viruses. Through this research theme we wish to establish and develop robust, new protocols for various EM-techniques.
The cell biology pole Imagerie-Gif is localized on the CNRS campus of Gif sur Yvette, in a new building dedicated to platform activity. This IBiSA platform provides efficient access to high quality services and state of the art technologies. It is open to the whole academic scientific community and to industrial partners. The management and development of this pole is under the responsibility of the team “Dynamics of cell compartmentation” (group leader S. Lecart, Institut des Sciences du Végétal, Gif sur Yvette). It uses cell biology approaches and multiscale imaging (cytometry, bio-imaging and electron microscopy) to explore the cell. The development of new protocols and the mastering of update imaging approaches are part of the R & D objectives of the platform. Those are then transferred to platform services and disseminated through numerous training and teaching events, and opened to the whole scientific community. The cell biology pole of Imagerie-Gif activities contributes to the working groups “super resolution”, “Probe development” and “CLEM” within the France-BioImaging consortium.
Microscopy systems available @Imagerie-Gif
The BIC (Bordeaux Imaging Center) offers resources in photonic and electronic imaging, mainly in life, health and plant sciences. It is a core facility identified at the national level as IBISA that gathers 12 highly skilled engineers. It has the ISO9001 label. The different components of the BIC are: PHOTONIC imaging, ELECTRONIC imaging, PLANT imaging. The Bordeaux Imaging Center offers access to the most advanced bio-imaging techniques for fixed and live cell imaging such as video-microscopy, confocal microscopy, multiphoton microscopy, transmission electron microscopy and scanning electron microscopy. The BIC provides a unique set of high-end equipment for super- resolution microscopy such as STED confocal microscopy, FRAP video-microscopy, lifetime imaging FLIM for the measurement of molecular interactions. We also provide access to equipment for sample preparation such as ultra-microtoms, high pressure freeze (HPF) and we can host live samples.
Microscopy systems available @BIC
The Imachem imaging platform provides advanced light and electronic microscopy techniques to IBENS researchers and external users. Imachem is operated by 5 engineers. The main originality of IMACHEM is its ability to undertake innovative technical developments in optical microscopy and to make them available to all users. The first expertise of the platform is super-resolution microscopy, with the development of 3D-PALM using adaptive optic methods. It can perform ultra-structural imaging and single-particle tracking in 3D with a few tens of nanometers of spatial resolution. The second expertise is ultrafast two-photon microscopy for in vivo functional recordings with a temporal resolution in the msec range. A two-photon microscope using acousto-optic scanners for 2D scanning was first designed and installed in the platform. A new system providing ultrafast 3D scanning is currently under development. Additionally, electron microscopy using high-pressure freezing will be developed for correlative light and EM imaging.
The Cell and Tissue Imaging Platform (PICT-IBiSA) of the Institut Curie brings together advanced microscopy technologies. Its main objective is to provide researchers in cell biology, development, structural, chemistry and biophysics with imaging approaches at different spatial and dynamic scales ranging from the molecule, to the cell, to the organism in healthy or pathological contexts.
The platform is organized around 3 poles: photonic microscopy, high-content screening, electron microscopy and cryo-electron microscopy. Photonic microscopy extends from dynamic imaging to high resolution. High throughput microscopy allows cellular screening of chemical and siRNA banks. Electron microscopy and cryo-microscopy provide the molecular structure and cellular ultrastructure of biological samples. The platform also offers expertise in data processing and analysis.