RARAF_logoclick for homepagee-mail

Multi-Photon Microscope
Integrated on the Microbeam II End Station at RARAF

RARAF microbeam users are increasingly using and planning to use 3-D tissue samples and small organisms. To image their 3-D samples, our users require the multiphoton microscope that we developed and fully integrated into our main electrostatic-lens Microbeam II endstation at RARAF. A custom-design for the multiphoton microscope was necessary, given the geometrical constraints of the pre-existing microscope fitted at the terminus of the vertical ion beamline. Intended for detecting and observing short-term molecular kinetics of radiation responses in living tissue and in cell-culture samples, the multiphoton microscope at RARAF is the first of its kind to be assembled and implemented onto a microbeam cell-irradiation platform.

Shown above are multiphoton microscopy images of HUVEC tissue samples and a c.elegans nematode through fluorescence, autofluorescence (AF) and second harmonic generation (SHG). The cell nuclei, are stained with YOYO-1. Imaging modes: Cell nuclei imaged by YOYO-1 (green) and cell cytoplasm imaged with AF (blue); Cell nuclei imaged by YOYO-1 (green), cell cytoplasm imaged with AF (blue), and collagen imaged by SHG (red). The c. elegans is an image of the pharynx section of a wild-type specimen. SHG (red) and AF (blue) were used to produce this image.

While the multi-photon microscope is integrated in the Microbeam II end station, it is available as a stand alone system when there are no irradiation experiments requiring the other integrated facilities.

 



tel: (914) 591-9244
fax: (914) 591-9405
Radiological Research Accelerator Facility Nevis Laboratories
P.O. Box 21, 136 S. Broadway, Irvington, N.Y. 10533