An Electrostatic Mechanism for the Formation of Hybrid
Nanostructures Based on Gold Nanoparticles
and Cationic Porphyrins

A. V. Povolotskiy; Поволоцкий А. В.; D. A. Soldatova; Солдатова Д. А.; D. A. Lukyanov; Лукьянов Д. А.; E. V. Solovieva; Соловьёва Е. В.

doi:10.31857/S0207401X23120087

An Electrostatic Mechanism for the Formation of Hybrid Nanostructures Based on Gold Nanoparticles and Cationic Porphyrins

Authors: Povolotskiy A.V.¹, Soldatova D.A.¹, Lukyanov D.A.¹, Solovieva E.V.¹
Affiliations:
1. Institute of Chemistry, St. Petersburg State University
Issue: Vol 42, No 12 (2023)
Pages: 70-74
Section: Chemical physics of nanomaterials
URL: https://ruspoj.com/0207-401X/article/view/675014
DOI: https://doi.org/10.31857/S0207401X23120087
EDN: https://elibrary.ru/QTFPLH
ID: 675014

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Abstract

interaction of cationic porphyrin with gold nanoparticles (GNPs) coated with polymer shells
with positive and negative surface potentials in an aqueous solution is studied. The criteria for the formation
of hybrid molecular-plasmon nanostructures based on the determination of the luminescence quenching
mechanism according to the Stern-Volmer equation and the change in the shape of the porphyrin luminescence
spectrum are established. The effect of the sign of the zeta potential of GNPs on the formation of hybrid
molecular-plasmon nanostructures due to electrostatic interaction is established.

Keywords

porphyrin, gold nanoparticles, luminescence quenching, Stern-Volmer coordinates, hybrid nanostructures

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