Mixed Langmuir-Blodgett monolayers containing carboxylic ionophores.: Application to Na+ and Ca2+ ISFET-based sensors

被引：22

作者：

Rochefeuille, S

Jimenez, C

Tingry, S

Seta, P

Desfours, JP

机构：

[1] Univ Montpellier 2, Lab Genie Proc, F-34095 Montpellier 5, France

[2] CSIC, IMB CNM, Inst Microelect Barcelona, E-08193 Barcelona, Spain

[3] CNRS, UMR 5635, Lab Mat & Proc Membranaires, F-34293 Montpellier 5, France

来源：

MATERIALS SCIENCE & ENGINEERING C-BIOMIMETIC AND SUPRAMOLECULAR SYSTEMS | 2002年 / 21卷 / 1-2期

关键词：

Langmuir-Blodgett monolayers; monensin; calcimycin; ISFETs;

D O I：

10.1016/S0928-4931(02)00056-5

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Novel ISFET devices coated with ultrathin membranes are suitable for cation detection in liquids. Deposition of Na+-ion and Ca2+-ion sensitive Langmuir-Blodgett films onto ISFET surfaces has been achieved. In this work, we present first experimental results about ISFET devices coated with LB mixed films. The sensitive material is a carboxylic ionophore (monensin or calcimycin) included in a phospholipid matrix. The sensors showed a linear response with a slope of 19 mV/pNa in the range 10(-2)/10(-6) mol/l and a slope 23 mV/pCa in the range of 10(-2)/10(-4) mol/l. The results have demonstred the transferability of mixed films onto structured semiconductor devices like ISFETs. This response let us expect further improvements. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：43 / 46

页数：4