Title :
Development of a polyimide based potassium ion-selective membrane for ISFET sensor
Author :
Liao, Eva ; Aw, Chak-Yoon ; Moinpour, Mansour ; Morgan, Cathy ; Cheung, Peter W.
Author_Institution :
Washington Univ., Seattle, WA, USA
Abstract :
A potassium-ion-selective sensor based on valinomycin-doped polyimide film is reported. Different substrates were used to study the response of the potassium-ion-sensing polyimide membrane. The preliminary results obtained with a silver substrate demonstrate the feasibility of using polyimide as a matrix support membrane for ion-selective sensors. Poor results were observed with other substrates. The sources for the sub-Nernstian response are under investigation
Keywords :
biomedical electronics; biomedical equipment; biosensors; conducting polymers; field effect integrated circuits; membranes; polymer films; Ag substrate; ISFET sensor; K; K ion selective membrane; biomedical field; matrix support membrane; sub-Nernstian response; valinomycin-doped polyimide film; Adhesives; Biomembranes; Chemicals; Electrodes; Fabrication; Polyimides; Sensor arrays; Silicon; Silver; Substrates;
Conference_Titel :
Engineering in Medicine and Biology Society, 1989. Images of the Twenty-First Century., Proceedings of the Annual International Conference of the IEEE Engineering in
Conference_Location :
Seattle, WA
DOI :
10.1109/IEMBS.1989.96120
