It is an urgent need to develop simple and high-throughput methods for simultaneously
screening and detecting multiple or groups of sulfonamides (SAs) in animal-derived foods …

Aptamer-based biosensors have been widely constructed and applied to detect diverse
targets. Metronidazole is a widely used broad-spectrum antibacterial drug, whose residue …

A dual-mode (colorimetric/fluorescence) nanoenzyme-linked immunosorbent assay (NLISA)
was developed based on Au-Cu nanocubes generating Prussian blue nanoparticles …

Here, a novel fluorescent sensing for simple, highly sensitive and efficient detection of Hg 2+
was developed as joint result of triple-helix molecular switch (THMS) and exonuclease III …

Selective and sensitive determination of trace kanamycin in complex food samples is of
great importance for food safety because of its high toxicity. Here, we report a sensitive and …

A novel fluorescence immunoassay for detecting sulfaquinoxaline (SQX) in animal-derived
foods was developed using NaYF4: Yb/Tm upconversion nanoparticles (UCNPs) …

Accurate and rapid detection of nitrofurantoin metabolite 1-aminohydantoin (AHD), as one of
the tissue-bound toxic metabolites in foods, is crucial. In this study, a fluorescent aptasensor …

Okadaic acid (OA) is a major marine toxin that can cause diarrheic shellfish poisoning
(DSP). Because of food safety concerns, simple and reliable field assays are in high …

Herein, a ratiometric fluorescence (RF) immunoassay platform coupling with enzyme-
nanozyme cascade amplification strategy was fabricated for precise and ultrasensitive …

A novel indirect competitive fluorescence immunoassay based on the quenching of I-to
silver clusters (AgNCs) was developed for the highly selective and ultrasensitive detection of …