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Updated: Sep 25, 2025
Author Spotlight: Tracking Electrochemistry on Single Nanoparticles with Surface-Enhanced Raman Scattering Spectroscopy and Microscopy
Published on: May 12, 2023
Measuring nanoparticle-induced resonance energy transfer effect by electrogenerated chemiluminescent reactions
Pilar Perez-Tejeda1, Alberto Martínez-Delgado1, Elia Grueso1
1Department of Physical Chemistry, Faculty of Chemistry, University of Sevilla C/Profesor García González, 1 41012 Sevilla Spain pptejeda@us.es.
Abstract:
Electrogenerated chemiluminescence (ECL) efficiencies, redox potentials, photoluminescent (PL) (quenching and coupling) effects, and AFM images for the [Ru(bpy)3]2+/Au@tiopronin system were determined in aqueous solutions of the gold nanoparticles (NPs) at pH 7.0. The most remarkable finding was that ECL measurements can display the nanoparticle-induced resonance energy transfer (NP-RET) effect. Its effectiveness was quantified through a coefficient, K (NP-RET) , which measures how much an ECL reaction has been enhanced. Moreover, the NP-RET effect was also checked using PL measurements, in such a way that a coefficient, K (NP-RET) , was determined; both constants, K (NP-RET) and K (NP-RET) being in close agreement. It is important to highlight the fact that the NP-RET effect is only displayed in diluted solutions in which there is no NPs self-aggregation. The existence of the NPs self-aggregation behavior is revealed through AFM measurements.
