December 2, 2025FoodsOpen Access

Advances in Optical Sensing Technologies for On-Site Detection of Harmful Residues in Food: Principles and Recent Applications

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Review highlights practical applications and challenges of optical detection for harmful residues in food inspections.

Optical detection technologies improve food safety by enabling rapid on-site testing for harmful residues.
Techniques like surface-enhanced Raman scattering and fluorescence detection illustrate the promise of these technologies.
Assessment of food inspection using optical methods shows integration with nanotechnology and smartphone systems.
This review suggests advances in optical detection could enhance on-site food safety measures significantly.

Liu et al. (2025) studied this question.

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