REFERENCE FIELD-EFFECT TRANSISTORS BASED ON CHEMICALLY MODIFIED ISFETS

被引：28

作者：

SKOWRONSKAPTASINSKA, M ^{[1
]}

VANDERWAL, PD ^{[1
]}

VANDENBERG, A ^{[1
]}

BERGVELD, P ^{[1
]}

SUDHOLTER, EJR ^{[1
]}

REINHOUDT, DN ^{[1
]}

机构：

[1] TWENTE UNIV,BIOINFORMAT LAB,7500 AE ENSCHEDE,NETHERLANDS

来源：

ANALYTICA CHIMICA ACTA | 1990年 / 230卷 / 01期

关键词：

D O I：

10.1016/S0003-2670(00)82762-2

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Different hydrophobic polymers were used for chemical modification of ion-sensitive field effect transistors (ISFETs) in order to prepare a reference FET (REFET). Chemical attachment of the polymer to the ISFET gate results in a long lifetime of the device. Properties of polyacrylate (polyACE) REFETs are described in detail. The polyACE-REFET is superior to other polymer modified REFETs, showing an excellent pH insensitivity (≤1 mV pH-1), a long lifetime and an electrically identical behaviour as an unmodified pH ISFET or a cation-selective PVC-MEMFET (membrane FET). The cation permeselectivity of the polymer can be significantly reduced by addition of immobile cations. The applicability of a polyACE-REFET in differential measurements with a pH ISFET and a K+ MEMFET is demonstrated. © 1990.

引用

页码：67 / 73

页数：7

共 24 条

[1] THE OPERATION OF AN ISFET AS AN ELECTRONIC DEVICE [J].

BERGVELD, P .

SENSORS AND ACTUATORS, 1981, 1 (01) :17-29

[2]

BERGVELD P, 1989, SENSOR ACTUATOR, V18, P307

[3] OPERATION OF CHEMICALLY SENSITIVE FIELD-EFFECT SENSORS AS A FUNCTION OF THE INSULATOR-ELECTROLYTE INTERFACE [J].

BOUSSE, L ;

DEROOIJ, NF ;

BERGVELD, P .

IEEE TRANSACTIONS ON ELECTRON DEVICES, 1983, 30 (10) :1263-1270

[4]

CAMMANN K, 1986, 2ND P INT M CHEM SEN, P554

[5] FIELD-EFFECT TRANSISTOR AS A SOLID-STATE REFERENCE ELECTRODE [J].

COMTE, PA ;

JANATA, J .

ANALYTICA CHIMICA ACTA, 1978, 101 (02) :247-252

[6]

ERGVELD P, 1978, THEORY DESIGN BIOMED, P135

[7] CHEMICALLY MODIFIED PARYLENE GATE FIELD-EFFECT TRANSISTORS - PREPARATION OF PH INSENSITIVE PARYLENE GATE FOR CHEMICAL MODIFICATION [J].

FUJIHIRA, M ;

FUKUI, M ;

OSA, T .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1980, 106 (1-2) :413-418

[8]

HANAZATO Y, 1983, ANAL CHEM S SER, V17, P513

[9]

HOCHMAIR ES, 1985, IMPLANTABLE SENSORS, pCH4

[10]

JANATA J, 1979, ION SELECTIVE ELECTR, V1, P31

← 1 2 3 →