Share Email Print

Proceedings Paper

Label-free imaging of rat spinal cords based on multiphoton microscopy
Author(s): Chenxi Liao; Zhenyu Wang; Linquan Zhou; Xiaoqin Zhu; Wenge Liu; Jianxin Chen
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

As an integral part of the central nervous system, the spinal cord is a communication cable between the body and the brain. It mainly contains neurons, glial cells, nerve fibers and fiber tracts. The recent development of the optical imaging technique allows high-resolution imaging of biological tissues with the great potential for non-invasively looking inside the body. In this work, we evaluate the imaging capacity of multiphoton microscopy (MPM) based on second harmonic generation (SHG) and two-photon excited fluorescence (TPEF) for the cells and extracellular matrix in the spinal cord at molecular level. Rat spinal cord tissues were sectioned and imaged by MPM to demonstrate that MPM is able to show the microstructure including white matter, gray matter, ventral horns, dorsal horns, and axons based on the distinct intrinsic sources in each region of spinal cord. In the high-resolution and high-contrast MPM images, the cell profile can be clearly identified as dark shadows caused by nuclei and encircled by cytoplasm. The nerve fibers in white matter region emitted both SHG and TPEF signals. The multiphoton microscopic imaging technique proves to be a fast and effective tool for label-free imaging spinal cord tissues, based on endogenous signals in biological tissue. It has the potential to extend this optical technique to clinical study, where the rapid and damage-free imaging is needed.

Paper Details

Date Published: 31 October 2016
PDF: 7 pages
Proc. SPIE 10024, Optics in Health Care and Biomedical Optics VII, 1002425 (31 October 2016); doi: 10.1117/12.2245519
Show Author Affiliations
Chenxi Liao, Fujian Normal Univ. (China)
Zhenyu Wang, Fujian Medical Univ. (China)
Linquan Zhou, Fujian Medical Univ. (China)
Xiaoqin Zhu, Fujian Normal Univ. (China)
Wenge Liu, Fujian Medical Univ. (China)
Jianxin Chen, Fujian Normal Univ. (China)

Published in SPIE Proceedings Vol. 10024:
Optics in Health Care and Biomedical Optics VII
Qingming Luo; Xingde Li; Ying Gu; Yuguo Tang, Editor(s)

© SPIE. Terms of Use
Back to Top