Detection of ochratoxin A by quantum dots–based fluorescent immunochromatographic assay

Differential diagnosis of the infection caused by wild-type or CD2v-deleted ASFV strains by quantum dots-based immunochromatographic assay

“…The QDs‐CD2v conjugate was obtained according to the ethyl carbodiimide hydrochloride (EDC) method presented in reference (Zhou et al . 2021). The optimized procedure was as follows, 12·5‐μl QDs (CdSe/ZnS, 8 μmol l −1 ) and 38·3‐μl EDC (6·4 mmol l −1 ) were added to a reaction vessel, and then, the mixture was stirred for 0·5 h at 25°C using a shaking incubator.…”

Development of a fluorescent immunochromatographic assay based on quantum dots for the detection of fleroxacin

“…The fluorescent probes were characterized and analyzed to determine whether the QDs and anti-FLE mAb were successfully coupled according to a previous report. 25 The ultraviolet visible light absorption spectrum was provided by a UV-visible spectrophotometer. The fluorescence spectra of the anti-FLE mAb-QDs and pure QDs were measured by a multifunctional microplate reader.…”

Application of molecular imprinting technology based on new nanomaterials in adsorption and detection of fluoroquinolones

“…43 Therefore, quantum dots are used in the fields of electronics, biology, medical diagnosis, and so on because of their excellent electrical and optical properties. 44 Doped QDs show specific recognition of template molecules by emitting fluorescent signals, and MIPs@QDs can be used as a novel sensing fluorescent probe with high sensitivity for quantitative detection of pharmaceuticals in food samples. 45 However, traditional quantum dots mostly contain heavy metal elements, such as mercury and cadmium, which easily cause certain hazards to humans and the environment when operated improperly, so QDs should be used reasonably in food testing.…”