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This work firstly reports an opto–magnetic interaction–induced enhancement of electrochemiluminescence (ECL) from CdS : Mn nanocrystals (NCs) film by superparamagnetic Fe3O4nanoparticles and its application to sensitive immunosensing. [ABSTRACT FROM AUTHOR]

Abstract: The cationic luminescence probe, tris(2,2′-bipyridyl)ruthenium(II) complex ([Ru(bpy)3]2+), was incorporated into laponite-modified glassy carbon electrode (GCE) via two strategies, namely, the adsorption and intercalation methods. These two incorporation methods resulted in different microenvironment for the immobilized [Ru(bpy)3]2+ within laponite as well as the different host–guest and guest–guest interactions. Herein, cyclic voltammetry and electrochemiluminescence (ECL) were innovatively performed to monitor the interactions. Tripropylamine (TPA) was used as coreactant in the electrochemical and ECL system. [Copyright &y& Elsevier]

Abstract: An in-situ induction precipitation approach via electrochemical reduction has been successfully used to prepare CdS-Polyamidoamine (CdS–PAMAM) nano-composite membranes on electrode surfaces, and that the resulting film showed 55-fold enhanced red electrogenerated chemiluminescence compared with that of CdS nano-film without PAMAM and the stability of the ECL can be modulated by electrochemical methods for the first time. It would open a way in preparation of stable and strong ECL nano-composite films for analytical application. [Copyright &y& Elsevier]