Electrochemical aptamer-based sensors for food and water analysis: A review

Fengqin Li, Zhigang Yu, Xianda Han, Rebecca Y. Lai

Research output: Contribution to journalReview articlepeer-review

113 Scopus citations


Global food and water safety issues have prompted the development of highly sensitive, specific, and fast analytical techniques for food and water analysis. The electrochemical aptamer-based detection platform (E-aptasensor) is one of the more promising detection techniques because of its unique combination of advantages that renders these sensors ideal for detection of a wide range of target analytes. Recent research results have further demonstrated that this technique has potential for real world analysis of food and water contaminants. This review summaries the recently developed E-aptasensors for detection of analytes related to food and water safety, including bacteria, mycotoxins, algal toxins, viruses, drugs, pesticides, and metal ions. Ten different electroanalytical techniques and one opto-electroanalytical technique commonly employed with these sensors are also described. In addition to highlighting several novel sensor designs, this review also describes the strengths, limitations, and current challenges this technology faces, and future development trend.

Original languageEnglish (US)
Pages (from-to)1-23
Number of pages23
JournalAnalytica Chimica Acta
StatePublished - Mar 21 2019


  • Aptamers
  • Contaminants detection
  • Electroanalytical techniques
  • Electrochemical aptasensors
  • Food analysis
  • Water analysis

ASJC Scopus subject areas

  • Analytical Chemistry
  • Biochemistry
  • Environmental Chemistry
  • Spectroscopy


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