Abstract :
[en] Background: Inadequate or untimely food safety detection and monitoring
technologies often lead to substantial resource and cost wastage. Consequently, the
development and implementation of portable, rapid, and intelligent technologies have
become critical to ensure food safety and the preservation of product quality. Layered
19 double hydroxides (LDHs), due to their large specific surface area, excellent stability,
20 simple synthesis methods, and low cost, have garnered significant attention from
21 researchers in recent years. LDHs have emerged as an ideal choice for achieving high
22 sensitivity and strong specificity in food safety sensing and detection.
23 Scope and approach: A detailed overview of the fundamental concepts of LDHs is
24 provided, accompanied by a comprehensive analysis of their synthesis methods. Next,
25 the sources of catalytic activity in LDHs are explored, and strategies for regulating their
26 performance are proposed to enhance their effectiveness in food contaminant detection.
27 Finally, the progress in practical applications of LDHs for detecting various food
28 contaminants is reviewed, with an emphasis on their effectiveness in improving
29 detection sensitivity, increasing detection efficiency, and facilitating the development
30 of portable and intelligent detection systems.
31 Key findings and conclusion: LDHs can be applied in the detection of heavy metals,
32 pesticide residues, mycotoxins, and antibiotics. However, LDHs still face certain
33 limitations in achieving high sensitivity and strong specificity in detecting target
34 substances. One promising strategy to overcome these challenges is the synergistic
35 incorporation of high-performance catalytic materials, such as single- or dual-atom
36 catalysts and other nanomaterials. This development not only offers new perspectives
37 for advancing food safety detection technologies but also expands the possibilities for
38 broader applications of LDHs.
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