Application of polyvinylpyrrolidone-stabilized silver nanoclusters as fluorescent probes for trace iodide in seaweed (opens in new tab)

IntroductionIodide is an essential trace nutrient in foods like seaweed, seafood, and iodized salt, with balanced intake critical for thyroid function and metabolic health. Accurate trace detection is key for nutrition evaluation and iodide deficiency prevention. Existing methods often face challenges in complex food matrices, so this study aimed to construct a polyvinylpyrrolidone (PVP)-stabilized silver nanocluster (AgNCs@PVP) fluorescent probe for trace iodide detection in seaweed.MethodsA...