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An enzyme-linked immunoassay is described for the fluorometric determination of aflatoxin B1 (AFB1). It is based on the use of carbon dots (CDs) synthesized by using Litchi chinensis as the carbon source via a hydrothermal method. The CDs were modified with MnO2 nanosheets upon which their blue fluorescence (with excitation/emission peaks at 340/425 nm) is quenched. In the presence of AFB1, a competitive...
The authors describe a photoelectrochemical (PEC) immunoassay for determination of aflatoxin B1 (AFB1) in foodstuff. The competitive immunoreaction is carried out on a microplate coated with a capture antibody against AFB1 using AFB1-bovine serum albumin (BSA)-liposome-coated mesoporous silica nanoparticles (MSN) loaded with L-cysteine as a support. The photocurrent is produced by a photoactive material...
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