Effect of colloidal β‐cyclodextrins–Fe3O4 magnetic nanoparticles on the chemiluminescence enhancement of luminol–Ag (III) complex for rapid and sensitive determination of cysteine in human serum

Authors: B Rezaei, AA Ensafi, L Zarei, P Kameli

Publication date: 2012/9/1

Journal name: Luminescence

Volume: 27

Pages: 390-397

Publisher: John Wiley & Sons, Ltd

ABSTRACT Colloidals solution of Fe 3 O 4 magnetic nanoparticles (MNPs), capped with β-
cyclodextrins (β-CD) as inclusion complexes, were found to enhance the
chemiluminescence (CL) intensity of the luminol–diperiodatoargentate (III)(DPA) system. On
injection of cysteine into the luminol–DPA–β-CD–Fe 3 O 4 MNPs inclusion complexes
system, the CL intensity is strongly enhanced. The enhanced CL signal is ascribed to the
catalytic effect of Fe 3 O 4 MNPs capped with β-CD, which is assumed to stabilize the CL ...