Sensor for Stiffness Measurements Within the Adult Rat Hippocampus

Authors :: William C. Tang
G.Y. Yang
Ivan Soltesz
Yu-Hsin Wen
Csaba Földy
Source :: IEEE Sensors Journal. 8:1894-1899
Publication Year :: 2008
Publisher :: Institute of Electrical and Electronics Engineers (IEEE), 2008.
Abstract: This paper presents a sensitive compliance measurement system for determining the stiffness of the adult rat hippocampus. The device has been successfully fabricated which consists of two strain gauges incorporated in the SU-8 based cantilever. The cantilever-sensor has been fully characterized and its strain sensitivity was found to be approximately 2.5. in vitro testing on the brain tissue has successfully demonstrated that the system is sufficiently sensitive to provide distinctive direct stiffness measurements on various hippocampal regions.