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Proceedings Paper

Electrochemical sensors using supported bilayer lipid membranes
Author(s): Angelica L. Ottova; Ding-li Guo; H. Ti Tien
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Paper Abstract

Some electrical properties were studied on potential responses of self-assembled bilayer lipid membranes (s-BLMs). Gramicidin doped s-BLM sensors responded to hydrogen ion concentrations linearly with the slope of 144 mV/decade in the range of 0.4 to 4 M; Monensin doped s-BLM sensors responded to sodium ion, which has a slope of about 40 mV/decade in the concentration range of 0.3 to 30 mM; Valinomycin doped s-BLM sensors have nearly Nernstian response in the concentration range of 1.0 to 30 mM/[K+]; Ferrocene doped s-BLM sensors responded linearly to the ferricyanide ion, whose slope is 146 mV/decade in the concentration range of 0.03 to 30 mM/[K3Fe(CN)6]. Many ions such as ferrocyanide, citrate, SCN-, ClO4/$(superscript -, etc. did not interfere with the sensor response characteristics. Factors influencing s-BLM sensors' reproducibility and stability also were investigated.

Paper Details

Date Published: 1 May 1994
PDF: 9 pages
Proc. SPIE 2189, Smart Structures and Materials 1994: Smart Materials, (1 May 1994); doi: 10.1117/12.174081
Show Author Affiliations
Angelica L. Ottova, Michigan State Univ. (United States)
Ding-li Guo, Slovak Technical Univ. (Slovak Republic)
H. Ti Tien, Michigan State Univ. (United States)


Published in SPIE Proceedings Vol. 2189:
Smart Structures and Materials 1994: Smart Materials
Vijay K. Varadan, Editor(s)

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