Penicillin detection by means of field-effect based sensors: EnFET, capacitive EIS sensor or LAPS?

A. Poghossian, T. Yoshinobu, A. Simonis, H. Ecken, H. Lüth, M. J. Schöning

Research output: Contribution to journalArticlepeer-review

81 Citations (Scopus)

Abstract

Three types of semiconductor field-effect penicillin sensors, enzyme field-effect transistors (EnFETs), capacitive electrolyte-insulator-semiconductor (EIS) sensors and light-addressable potentiometric sensors (LAPS) have been developed and tested for the penicillin detection. For all sensor types the enzyme penicillinase was adsorptively immobilised directly onto a pH-sensitive Ta2O5 surface. Some basic parameters of these sensors (e.g. sensitivity, linear range, detection limit, response time, hysteresis and life time) are investigated and their performances with regard to the respective measurement set-up as well as the sensor configuration are compared.

Original languageEnglish
Pages (from-to)237-242
Number of pages6
JournalSensors and Actuators, B: Chemical
Volume78
Issue number1-3
DOIs
Publication statusPublished - 2001 Aug 30
Externally publishedYes

Keywords

  • Adsorptive immobilisation
  • Capacitive EIS sensor
  • EnFET
  • LAPS
  • Penicillin

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Electrical and Electronic Engineering
  • Materials Chemistry

Fingerprint Dive into the research topics of 'Penicillin detection by means of field-effect based sensors: EnFET, capacitive EIS sensor or LAPS?'. Together they form a unique fingerprint.

Cite this