SODIUM AND POTASSIUM SENSORS BASED ON SEPARATED EXTENDED GATE FIELD EFFECT TRANSISTOR

Autor:	Hsiang-Ching Lee, Hsiang-Yi Hsu, Jyh-Ling Lin, Yuan-Lung Chin, Chang-Yeh Wu, Tai-Ping Sun
Rok vydání:	2009
Předmět:	Materials science Potassium Sodium Biomedical Engineering Biophysics Analytical chemistry chemistry.chemical_element Bioengineering Potassium Ionophores Ion Valinomycin chemistry.chemical_compound Membrane chemistry Electronic engineering Field-effect transistor Biosensor
Zdroj:	Biomedical Engineering: Applications, Basis and Communications. 21:441-444
ISSN:	1793-7132 1016-2372
DOI:	10.4015/s1016237209001593
Popis:	A double potassium and sodium ions sensor based on separated extended gate field effect transistor (SEGFET) and a new entrapment method are proposed in this study. Having high sensitivity, reproducibility, and a simple manufacturing process, the sensors are quickly able to supply information and detect human blood within an abnormal range. The sensing membranes were fabricated using a Poly(vinyl chloride) carboxylated (PVC-COOH) matrix; sodium ionophore (B12C4) or potassium ionophore (valinomycin). The sensitivity of ion-selective biosensors is 42.55 mV/decade for Na+ between 1 M and 10-7 M, 42.75 mV/decade for K+ between 1 M and 10-6 M.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::bbc776405ed1e735f0e8673c9f98a808 https://doi.org/10.4015/s1016237209001593 Zobrazit plný text záznamu