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Proceedings Paper

The fabrication of glucose sensor by nanoporous silicon film and its switching characteristics on visible color light response
Author(s): Jia-Chuan Lin; Meng-Kai Hsu; Hsi-Ting Hou; Jhe-Yuan Wu
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Paper Abstract

An investigation of the visible light glucose sensor by utilized nanoporous (NPS) silicon material as a sensitive layer was proposed. In the experiments, all studied NPS films are prepared by electrochemical anodization technique and the obtained depth are about 3.3 μm. The peak of PL-intensity curve is 610 nm under normal air condition. Based on its high surface to volume ratio (SVR) and unique light emission properties, the studied NPS glucose sensor has a high sensitivity and stability. The visible light response on the film surface switches obviously between distinct colors with/without glucose treatment. As compared with conventional electronic glucose sensor, the highly sensitive and obvious light switching characteristics would be important to related detection. It has a potential application on small-size, low-cost, portable and electric-free sensor systems. After the immersion treatment of 1M glucose solution on the studied NPS samples, an obvious blue-shift behavior of PL-feature (from 610 to 560 nm) is observed at room temperature. The color switching can be read by a naked-eye easily.

Paper Details

Date Published: 15 April 2011
PDF: 6 pages
Proc. SPIE 7980, Nanosensors, Biosensors, and Info-Tech Sensors and Systems 2011, 798018 (15 April 2011); doi: 10.1117/12.881845
Show Author Affiliations
Jia-Chuan Lin, St. John's Univ. (Taiwan)
Meng-Kai Hsu, St. John's Univ. (Taiwan)
Hsi-Ting Hou, Tamkang Univ. (Taiwan)
Jhe-Yuan Wu, Chinese Culture Univ. (Taiwan)

Published in SPIE Proceedings Vol. 7980:
Nanosensors, Biosensors, and Info-Tech Sensors and Systems 2011
Vijay K. Varadan, Editor(s)

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