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

The 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 qu...

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Bibliographic Details
Published in:Russian journal of physical chemistry. B 2023-12, Vol.17 (6), p.1398-1402
Main Authors: Povolotskiy, A. V., Soldatova, D. A., Lukyanov, D. A., Solovyeva, E. V.
Format: Article
Language:English
Subjects:
Aqueous solutions
Cations
Chemical Physics of Nanomaterials
Chemistry
Chemistry and Materials Science
Gold
Luminescence
Nanoparticles
Nanostructure
Physical Chemistry
Plasmons
Porphyrins
Zeta potential
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Summary:The 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.
ISSN:1990-7931
1990-7923
DOI:10.1134/S1990793123060192