Generating and measuring photochemical changes inside the brain using optical fibers: exploring stroke

Biomed Opt Express. 2014 Oct 16;5(11):3975-80. doi: 10.1364/BOE.5.003975. eCollection 2014 Nov 1.

Abstract

We report here on the development of a method for inducing a stroke in a specific location within a mouse brain through the use of an optical fiber. By capturing the emitted fluorescence signal generated using the same fiber it is possible to monitor photochemical changes within the brain in real-time, and directly measure the concentration of the stroke-inducing dye, Rose Bengal, at the infarct site. This technique reduces the requirement for post-operative histology to determine if a stroke has successfully been induced within the animal, and therefore opens up the opportunity to explore the recovery of the brain after the stroke event.

Keywords: (060.2370) Fiber optics sensors; (170.0170) Medical optics and biotechnology; (170.3890) Medical optics instrumentation; (170.6280) Spectroscopy, fluorescence and luminescence.