A Shape Memory Alloy Microelectrode
with Clipping Structure for Neural Recording


 

The Ti-Ni thin films are deposited by sputtering and patterned by wet etching. The transformation temperatures of the SMA thin films were 48 °C. The neural activity from a living insect was successfully recorded with this microelectrode.

References :
Shoji Takeuchi, Isao Shimoyama, “An RF-telemetry System with Shape Memory Alloy Microelectrodes for Neural Recording of Freely Moving Insects,” the 1st Annual International IEEE-EMBS Special Topic Conference on Microtechnologies in Medicine & Biology, pp. 491-496, Lyon, France, Oct. 12-14, 2000. [Proceedings]

Shoji Takeuchi, Isao Shimoyama, “A Three-Dimensional Shape Memory Alloy Microelectrode with Clipping Structure for Insect Neural Recording,” Journal of Microelectromechanical Systems, vol. 9, no. 1, pp. 24-31, 2000. [Paper]

Shoji Takeuchi, Isao Shimoyama, “A Wireless Telemetry System with an SMA Microelectrode for Neural Recording of Freely Moving Insects,” 4th Japan-France Conference on Biosensor and Bioelectronics, Tokyo, Japan, Oct. 23-26, 2001.

Shoji Takeuchi, Isao Shimoyama, “A Radio-Telemetry System with a Shape Memory Alloy Microelectrode for Neural Recording of Freely Moving Insects,” IEEE Transaction on Biomedical Engineering, vol. 51, no. 1, pp. 133-137, 2004. [Paper]