We report a dual signal read-out enzyme-linked immunosorbent assay (ELISA) strategy for the sensitive detection of Norfloxacin (Nor) using a bifunctional ligand and enzymatic signal amplification system. In the proposed method, the immune response of an anti-Nor antibody against Nor-Biotin...

The surface plasma resonance (SPR) sensor is an ultra-sensitive instrument that rapidly detects target objects by means of physical optics. Due to their advantages of being label-free, high sensitivity, rapidity, low reagent consumption and real-time monitoring, SPR sensors have aroused wide...

Ratiometric fluorescence imprinting sensors (GQDs/CdTe@MIPs) were successfully constructed by precipitation polymerization method for the recognition and detection of oxytetracycline (OTC) in milk samples. GQDs/CdTe@MIPs were characterized by scanning electron microscope (SEM), transmission...

Core-shell magnetic molecularly imprinted polymer nanoparticles (MMIP NPs) were prepared for the adsorption and the isolation of tetracycline from food matrices. The obtained MMIP NPs were characterized by transmission electron microscopy, Fourier transform infrared spectroscopy, X-ray...

The magnetic molecularly imprinted polymers (MMIPs), prepared with magnetic materials as carriers, are a class of polymers with specific molecular recognition sites. The analyte can be enriched and separated in an external magnetic field. So, applying of MMIPs can solve some problems about...

Food companies are seeking natural antibacterial alternatives to chemical preservatives like sodium benzoate and potassium sorbate due to the increasing demand for natural and healthy diets. Nisin, a polypeptide bacteriocin produced by lactic acid and other beneficial bacteria, offers natural,...

Fruits production and consumption are generally increasing because of consumers' awareness of healthy nutrition. Fruit quality and safety are both important since fruits are vulnerable to microbial deterioration due to their nutritional composition. Spoilage microorganisms invade fruits during the...

Salted jellyfish skin is used as the research object to develop low-aluminum jellyfish products, and the effects of different storage temperatures(25, 37, 45°C) on the quality of low-aluminum jellyfish products are studied. Through Pearson correlation coefficient analysis, the key factors affecting ...

Hormone residues in food and drinking water endanger human health, therefore, on-site analysis techniques of superior performance are important for monitoring this risk. In this study, an ultra-sensitive photothermal lateral flow immunoassay (LFIA) for quantification of 17β-estradiol (E₂) has been...

Long-term use of norfloxacin (NOR) will cause NOR residues in foods and harm human bodies. The determination of NOR residues is important for guaranteeing food safety. In this study, a simple, selective, and label-free colorimetric chemosensor for in situ NOR detection was developed based on Fe₃O₄...