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A direct competitive fluorescent enzyme-linked immunosorbent assay (ELISA) was developed for the detection of zearalenone (ZEN) using ZEN labeled catalase (CAT) as a competing antigen with H2O2-sensitive CdTe quantum dots (QDs) for signal transduction. The novel fluorescent ELISA showed very high sensitivity for ZEN detection because it combined the high catalytic activity of CAT to H2O2 and H2O2-sensitive...
To perform the biopanning of a mimotope peptide with reduced affinity to anti-ochratoxin A (OTA) monoclonal antibodies (mAbs), we executed two improved biopanning approaches with a commercial 7-mer peptide library. In the first approach, anti-mouse IgG antibodies were used to erect the anti-OTA mAbs; in the second approach, an ultralow OTA concentration (0.1ng/mL) was used to perform the competitive...
A Ru(phen) 32+ doped silica nanoparticle based immunochromatographic strip was developed for the rapid and quantitative detection of five common β-agonist (salbutamol (SAL), cimbuterol, terbutaline, clenbuterol, and brombuterol) residues in swine urine. The broad spectrum monoclonal antibodies generated by immunizing BALB/c mice with salbutamol conjugated cationic bovine serum albumin...
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