In vitro evaluation of flexible pH and potassium ion-sensitive organic field effect transistor sensors

被引：38

作者：

Ji, Taeksoo ^{[1
]}

Rai, Pratyush ^{[2
]}

Jung, Soyoun ^{[1
]}

Varadan, Vijay K. ^{[1
]}

机构：

[1] Univ Arkansas, Dept Elect Engn, OEDL, Fayetteville, AR 72701 USA

[2] Univ Arkansas, Dept Biomed Engn, Fayetteville, AR 72701 USA

来源：

APPLIED PHYSICS LETTERS | 2008年 / 92卷 / 23期

关键词：

D O I：

10.1063/1.2936296

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Acute myocardial ischemia is a state of trauma of the heart muscle caused by occlusion of oxygenated blood supply. It is accompanied by an increase in potassium and hydrogen ion concentrations in the heart muscles. A flexible substrate based ion-sensitive field effect transistor (ISFET) has been designed to measure the concentration of potassium and hydrogen ions with high specificity. Double exponential smoothing technique was used to calculate background noise and explain the dependence of drain current on reference voltage and ion concentration in saturation mode of the ISFET. (C) 2008 American Institute of Physics.

引用

页数：3

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