Giant Magnetoresistance Biosensors for Food Safety Applications

Shuang Liang, Phanatchakorn Sutham, Kai Wu, Kumar Mallikarjunan, Jian Ping Wang

Research output: Contribution to journalReview articlepeer-review

3 Scopus citations


Nowadays, the increasing number of foodborne disease outbreaks around the globe has aroused the wide attention of the food industry and regulators. During food production, processing, storage, and transportation, microorganisms may grow and secrete toxins as well as other harmful substances. These kinds of food contamination from microbiological and chemical sources can seriously endanger human health. The traditional detection methods such as cell culture and colony counting cannot meet the requirements of rapid detection due to some intrinsic shortcomings, such as being time-consuming, laborious, and requiring expensive instrumentation or a central laboratory. In the past decade, efforts have been made to develop rapid, sensitive, and easy-to-use detection platforms for on-site food safety regulation. Herein, we review one type of promising biosensing platform that may revolutionize the current food surveillance approaches, the giant magnetoresistance (GMR) biosensors. Benefiting from the advances of nanotechnology, hundreds to thousands of GMR biosensors can be integrated into a fingernail-sized area, allowing the higher throughput screening of food samples at a lower cost. In addition, combined with on-chip microfluidic channels and filtration function, this type of GMR biosensing system can be fully automatic, and less operator training is required. Furthermore, the compact-sized GMR biosensor platforms could be further extended to related food contamination and the field screening of other pathogen targets.

Original languageEnglish (US)
Article number5663
Issue number15
StatePublished - Aug 2022

Bibliographical note

Funding Information:
Authors acknowledge funding from Midwest Dairy Food Research Center under Award Number 3006-11026-00098234. This study was also financially supported by the U.S. Department of Agriculture—National Institute of Food and Agriculture (NIFA) under Award Number 2020-67021-31956.

Publisher Copyright:
© 2022 by the authors.


  • biosensor
  • food safety
  • foodborne pathogen
  • giant magnetoresistance
  • toxin

PubMed: MeSH publication types

  • Journal Article
  • Review


Dive into the research topics of 'Giant Magnetoresistance Biosensors for Food Safety Applications'. Together they form a unique fingerprint.

Cite this