articleAnalytical ChemistryFeb 13, 2023Closed access

Microelectromechanical Microsystems-Supported Photothermal Immunoassay for Point-of-Care Testing of Aflatoxin B1 in Foodstuff

ZYZhichao YuCQChicheng QiuLHLingting HuangYGYuan GaoDTDianping Tang

Fuzhou University

PubMed
Indexed incrossrefpubmed

Abstract

Accurate identification of acutely toxic and low-fatality mycotoxins on a large scale in a quick and cheap manner is critical for reducing population mortality. Herein, a portable photothermal immunosensing platform supported by a microelectromechanical microsystem (MEMS) without enzyme involvement was reported for point-of-care testing of mycotoxins (in the case of aflatoxin B1, AFB1) in food based on the precise satellite structure of Au nanoparticles. The synthesized Au nanoparticles with a well-defined, graded satellite structure exhibited a significantly enhanced photothermal response and were coupled by AFB1 antibodies to form signal conversion probes by physisorption for further target-promoted…

Citation impact

210
total citations
FWCI
21.84
Percentile
100%
References
48
Citations per year

Authors

5

Topics & keywords

Topics
Keywords
  • Photothermal therapy
  • Microsystem
  • Nanotechnology
  • Microelectromechanical systems
  • Chemistry
  • Point-of-care testing
  • Point of care
  • Population
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