PIMPA : Plateforme d’Imagerie Multiphotonique du Petit Animal

Location / Contact

Equipment / Specifications

Isabelle GARCIN 1, 2, Darine ABI HAIDAR 3, 4

1. INSERM U1174, Université Paris Sud, Orsay, France - 2. Université Paris Sud, Orsay, France - 3. IMNC Laboratory, UMR 8165-CNRS, Orsay, France 4. University of Paris 7-Paris Diderot, Paris, France

PIMPA : Plateforme d’Imagerie Multiphotonique du Petit Animal

Pimpa is located in building 440 of the Orsay campus in a P2 containment area and near the pet of IBAIC.

Its main objective is to offer the scientific community, academic or private, an advanced tool for nonlinear opticalimaging of small animals.

Darine ABI HAIDARabihaidar@imnc.in2p3.fr

Stand DM6000 : upright and motorized, optimized for Imaging the whole animalXY-motorized stage

Objectives Z-axis motorized : 25x IR APO 0.95 W40x PL APO 1.10 W

4 solid lasers (405 nm, 488 nm, 552 nm, 638 nm)

IR laser : Mai Tai DeepSee (Ti:Sapphire) ‐ Pulsed 70 fs‐ Automatic prechirping system of the pulse time

width dispersion‐ Tunable 690-1040 nm‐ Pulse repetition rate: 80 MHz‐ Average power: 2.5 W à 800 nm‐ Fully integrated laser source, controlled by an

electronic interface system and by the microscope software

Scanners TANDEM : conventional (7 im/sec); resonant (29 im/sec)

Detectors : PMT and hybrides HyD in the confocal head and in NDD

Transmission imaging : Dodt contrast

FLIM fully integrated in the SP8: ‐ PicoHarp 300 Module for data acquisition, including the TTTR

option (correlation in real time on-line)‐ SMD station with « SymPhoTime » software for FLIM data

acquisition and analysis

Combination confocal + multiphoton (Leica TCS SP 8 MP)

Tile image of the two photon emission and SHG signal from endogenous molecules

FLIM and lifetime measurement

Spectral imaging for different excitation and emission wavelength

1000 μm

A tunable femtosecond Ti: Sapphire oscillator(Mai Tai DeepSee, eHP, Spectra physics)

25μm

M. Zanello et al., “Multimodal optical analysis of meningioma and comparison withhistopathology,” J. Biophotonics (2015).

Multimodal acquisition 2PF & SHG Imaging of thick tissues 2PF & SHG images Compared to histology

Benefits Two-photon system to cover all the needs in non linear, high resolved in vivo imaging. A confocal system with no emission filter to increase sensitivity and flexibility of use. A turnkey system with the pulse laser steering. A fluorescence lifetime measurement system (FLIM) fully integrated into the software for greater flexibility and ease of use. A user-friendly multi-user oriented for a faster commissioning and time training.

Correspondence between H&E staining (top pictures) and the two-photonfluorescence imaging (bottom pictures) are, respectively, presented. Bundlesof collagen (a and e), psammoma bodies (b and f), winding collagen fiber (cand g) and vessels walls (d and h). Scale bars at 100 μm for fluorescenceimages and Hematoxylin and Eosin stainings.

Scale bars 100 μm

Some results

Description of one ROI analysis: (a) macroscopic view of meningiomasample, (b) patchwork, (c) FLIM, (d) 3D volume reconstruction afteracquisition of image stacks down to 250 μm, (e) and (f) excitation andcollection spectral analysis

Darine Abi-Haidar − IMNC Orsay Juin 2016 abihaidar@imnc.in2p3.fr

http://www.imnc.in2p3.fr/spip.php?rubrique56

http://www.imnc.in2p3.fr