Electrochemical biosensors for environmental monitoring

Judith Rishpon*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Highly sensitive electrochemical biosensors offer precision, sensitivity, rapidity, and ease of operation for on-site environmental analysis. An electrochemical biosensor is an analytical device in which a specific biological recognition element (bioreceptor) is integrated within or intimately associated with an electrode (transducer) that converts the recognition event to a measurable electrical signal for the purpose of detecting a target compound (analyte) in solution. The signal generated allows both qualitative and quantitative measurements of an analyte in real time. In most cases, a miniaturized electrochemical cell contains a low volume of analyte, which is vital when dealing with hazardous materials and makes such devices ideal for environmental monitoring. This approach not only provides the means for on-site analysis but also removes the time delay and sample alteration that can occur during transport to a centralized laboratory. We first address the basic principles of electroanalytical measurement and the merger of electrochemistry and biology into a biosensing system, and then we discuss various environmental monitoring strategies involving this technology.

Original languageEnglish
Pages (from-to)219-247
Number of pages29
JournalReviews on Environmental Health
Volume17
Issue number3
DOIs
StatePublished - 2002

Keywords

  • Amperometric
  • Bioreceptor
  • Electrodes
  • Food quality
  • Pollutants
  • Sensor
  • Transducer
  • Water quality

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