Noninvasive biosensor and wireless interrogating system for hypoglycemia

Vijay K. Varadan; Ashwin K. Whitchurch; K. Saukesi

doi:10.1117/12.473345

14 November 2002 Non-invasive biosensor and wilreless interrogating system for hypoglycemia

Vijay K. Varadan, Ashwin K. Whitchurch, K. Saukesi

Proceedings Volume 4937, Biomedical Applications of Micro- and Nanoengineering; (2002) https://doi.org/10.1117/12.473345
Event: SPIE's International Symposium on Smart Materials, Nano-, and Micro- Smart Systems, 2002, Melbourne, Australia

Abstract

Hypoglycemia - abnormal decrease in blood sugar - is a major obstacle in the management of diabetes and prevention of long-term complications, and it may impose serious effects on the brain, including impairment of memory and other cognitive functions. This paper presents the development of a non-invasive sensor with miniaturized telemetry device in a wrist-watch for monitoring glucose concentration in blood. The sensor concept is based on optical chiralit of glucose level in the interstitial fluid. The wrist watch consists of a laser power source of the wavelength compatible with the glucose. A nanofilm with specific chirality is placed at the bottom of the watch. The light then passes through the film and illuminates a small area on the skin.It has been documented that there is certain concentration of sugar level is taken by the intertitial fluid from the blood stream and deposit a portion of it at the dead skin. The wrist-watch when in contact with the outer skin of the human will thus monitor the glucose concentration. A wireless monitoring system in the watch then downloads the data from the watch to a Palm or laptop computer.

Citation Download Citation

Vijay K. Varadan, Ashwin K. Whitchurch, and K. Saukesi "Non-invasive biosensor and wilreless interrogating system for hypoglycemia", Proc. SPIE 4937, Biomedical Applications of Micro- and Nanoengineering, (14 November 2002); https://doi.org/10.1117/12.473345

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