Aug 2026· Food Chemistry· Vol 526, pp.
150874
· 0 citations· 59 references
Medicine
Abstract
Saxitoxin (STX) is a highly potent phycotoxin that poses a severe threat to both human health and aquatic ecosystems. Given its extremely low permissible level in food products, there is an urgent need for a sensitive, specific, and cost-effective screening method. In this study, an electrochemiluminescence (ECL)-based method was developed for STX detection, capitalizing on the inherent advantages of ECL, including high sensitivity and minimal background interference. To achieve selective recognition of STX, molecularly imprinted polymers (MIPs) featuring specific memory cavities were modified onto MAPB QDs@SiO2. Benefiting from the label-free nature of MIPs and the unique electronic properties of MAPB QDs, the fabricated ECL sensor exhibited excellent sensitivity with a low detection limit of 1.2 fg/mL and high selectivity against other biotoxins. With its simplicity, outstanding sensitivity, and reliable specificity, this sensor represents a promising tool for STX monitoring in environmental and food safety applications.
As a prevalent heat-induced byproduct, acrylamide (AA) is frequently generated during thermal food processing, particularly in baked and fried goods. It is a Group 2A carcinogen produced via the Maillard reaction and exhibits neurotoxicity as well as reproductive and developmental toxicity. In this work, DNA nanoflower...
Yang Wen, Weiling Li, Jingwen Fan et al.· Analytical Methods· 0 citations
Ensuring appropriate quercetin (Qn) levels in food is essential for food safety and human health. In this work, we developed a sensitive electrochemiluminescence (ECL) sensing platform for Qn analysis, utilizing aggregation-induced ECL (AIECL)-active polymer dots (Pdots) as the emitter. Benefiting from the restriction...
Zhong-Jie Wang, Yuheng Wang, Yang Guo et al.· Analytica Chimica Acta· 0 citations
In this study, a novel fluorescent sensor (MUA-AuNCs@Sm2O3) was constructed by confining gold nanoclusters within Sm2O3 and employed for the detection of the organophosphorus pesticide triclopyr. The probe interacted with triclopyr through a combination of static quenching and dynamic quenching, which led to fluorescen...
Aflatoxin B1(AFB1), a highly toxic mycotoxin, is widely prevalent in mold-contaminated grain crops and poses serious health risks to humans and animals, even at trace levels. Owing to its high toxicity and stable chemical structure, AFB1 is difficult to specifically detect and remove using conventional methods, leading...
Xue-Qin Wang, Jun-Yan Liu, Hong Chen et al.· Colloids and Surfaces B: Bio...· 0 citations
Sulfathiazole (STH) pollution has been increasing, with a strong need for a sensitive and selective analysis method. In this paper, a three-component fluorescent sensing platform with Mn2+-doped ZnS quantum dots in a metal–organic framework coated with a surface molecularly imprinted polymer (Mn-ZnS-MOF-MIP) for select...
Fatih Pekdemir, İzzet Koçak· Biosensors· 0 citations
The widespread use and increasing consumption of uranium source in nuclear energy applications has led to inevitable environmental release of uranyl ions (UO22+), which accumulate through the food chain and pose severe risks to human health and ecosystem. Therefore, it is highly significant and desirable to develop a s...
Xin-Yu Hou, Yi-Tong Wang, Yang Li et al.· International Journal of Bio...· 0 citations
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