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Recent Progress on Fluorescent Probes in Heavy Metal Determinations for Food Safety: A Review
Summary
This review covers recent advances in fluorescent probe technology for detecting toxic heavy metals in food to protect human health. While focused on heavy metals rather than microplastics directly, the detection methods are relevant because microplastics can absorb and transport heavy metals into food products. Better tools for finding heavy metal contamination in food could also help identify cases where microplastics are serving as carriers of these toxic substances.
One of the main challenges faced in food safety is the accumulation of toxic heavy metals from environmental sources, which can sequentially endanger human health when they are consumed. It is invaluable to establish a practical assay for the determination of heavy metals for food safety. Among the current detection methods, technology based on fluorescent probes, with the advantages of sensitivity, convenience, accuracy, cost, and reliability, has recently shown pluralistic applications in the food industry, which is significant to ensure food safety. Hence, this review systematically presents the recent progress on novel fluorescent probes in determining heavy metals for food safety over the past five years, according to fluorophores and newly emerging sensing cores, which could contribute to broadening the prospects of fluorescent materials and establishing more practical assays for heavy metal determinations.
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