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Titolo:
POTENTIOMETRIC BIOSENSOR IN DOUBLE MATRIX MEMBRANE TECHNOLOGY
Autore:
EGGENSTEIN C; BORCHARDT M; DUMSCHAT C; GRUNDIG B; CAMMANN K; SPENER F; KNOLL M;
Indirizzi:
INST CHEMO & BIOSENSOR MUNSTER,MENDELSTR 7 D-48149 MUNSTER GERMANY
Titolo Testata:
Biosensors & bioelectronics
fascicolo: 6-7, volume: 10, anno: 1995,
pagine: 595 - 600
SICI:
0956-5663(1995)10:6-7<595:PBIDMM>2.0.ZU;2-1
Fonte:
ISI
Lingua:
ENG
Soggetto:
UREA; ELECTRODE;
Keywords:
POTENTIOMETRIC BIOSENSOR; UREA SENSOR; DISPOSABLE BIOSENSOR;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
12
Recensione:
Indirizzi per estratti:
Citazione:
C. Eggenstein et al., "POTENTIOMETRIC BIOSENSOR IN DOUBLE MATRIX MEMBRANE TECHNOLOGY", Biosensors & bioelectronics, 10(6-7), 1995, pp. 595-600

Abstract

A throw-away urea sensor is described. A pH-sensitive disposable sensor constructed using double matrix membrane technology was used as a transducer. Double matrix membrane technology describes a process wherean ion-sensitive polymer matrix membrane is formed in the presence ofan additional inert matrix for to improve the reproducibility of sensor production. In this case one-side silver-coated filter paper was used as the inert matrix which was encapsulated by a heat sealing film. A pH-sensitive membrane was casted into this filter paper and on the surface of this membrane a urease containing layer was deposited. The sensor responded to between 10(-2) mol/l and 10(-4) mol/l urea, the response slope was 32.7 mV/decade. The concentration range in which the sensor responds is important for clinical analysis. The main advantagesof this pH-based urea electrode include miniature size as well as simple and low cost fabrication in a batch process.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 26/11/20 alle ore 20:31:22