Document Type
Article
Publication Date
4-1-2008
Publication Title
Optics Communications
Abstract
We have been studying the miniaturization of silicon crystals and the transition from the solid state to the atomistic state. We demonstrated the existence of “sweet spots” in cluster size in the range 1–3nm that have enhanced chemical, structural, and photo stability. The particles are produced by an electrochemical etching process as dispersion in liquid, and they are reconstituted in films, patterns, alloys, or spread on chips to produce super chips. Unlike bulk, these Si nanoparticle configurations have a spectacular ability to glow in distinct RGB colors. In this paper we describe an electrode sensor built by decorating metal or heavily doped silicon electrode with nanoparticles. We demonstrated amperometric response of the electrode to glucose and compared the response to that of heavily doped silicon wafer decorated with GOx. The all silicon electrode shows improved sensitivity, selectivity and stability. Light induced modulation of the response allows phase sensitive detection. The device is suitable for miniaturization, which may enable in vivo use.
Repository Citation
Wang, Gang; Yau, Siu-Tung; Mantey, Kevin; and Nayfeh, Munir H., "Fluorescent Si Nanoparticle-Based Electrode for Sensing Biomedical Substances" (2008). Electrical and Computer Engineering Faculty Publications. 62.
https://engagedscholarship.csuohio.edu/enece_facpub/62
Original Citation
Wang, G., Yau, S., Mantey, K., , & Nayfeh, M. H. (2008). Fluorescent Si nanoparticle-based electrode for sensing biomedical substances. Optics Communications, 281(7), 1765-1770. doi:10.1016/j.optcom.2007.07.070
DOI
10.1016/j.optcom.2007.07.070
Version
Postprint
Publisher's Statement
NOTICE: this is the author’s version of a work that was accepted for publication in Optics Communications. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Optics Communications, 281, 7, (04-01-2008); 10.1016/j.optcom.2007.07.070
Volume
281
Issue
7
