Structure characterization and electrochemical properties of glucose sensor

• Published in: Japanese Journal of Applied Physics Vol. 30; no. 7A; pp. L1205 - L1207
• Main Authors: KITABAYASHI, H, YASE, K, OKADA, M
• Format: Journal Article
• Language: English
• Published: Tokyo Japanese journal of applied physics 01.07.1991
• Subjects: Condensed matter: structure, mechanical and thermal properties; Exact sciences and technology; Physics; Solid surfaces and solid-solid interfaces; Surface and interface dynamics and vibrations; Surfaces and interfaces; thin films and whiskers (structure and nonelectronic properties); Thin film structure and morphology; Molecular orientation
• ISSN: 0021-4922; 1347-4065
• DOI: 10.1143/jjap.30.l1205

An enzyme-immobilized film as a biosensor is prepared by combining physical vapor deposition with an electrostatic interaction. The films of 11-aminoundecanoic acid (11-AUA) and 12-aminododecanoic acid (12-ADA) formed on KCl have two different molecular orientations arranged laterally and normally to the substrate surface, respectively. A constant amount of glucose oxidase solution is dropped on the films to form the enzyme-immobilized films. It is found that the normally oriented film of 12-ADA has higher sensitivity as a glucose sensor than do the others.