6533b81ffe1ef96bd1276f6c
RESEARCH PRODUCT
Application of the Generalized Molar-Ratio Method to the Determination of the Stoichiometry and Apparent Binding Constant of Nanoparticle-Organic Capping Systems
María González-béjarJulia Pérez-prietoAntonio Doménech-carbósubject
Aqueous solutionChemistryInorganic chemistryNanoparticleBinding constantAnalytical ChemistryMetalCucurbiturilColloidal goldvisual_artElectrochemistryvisual_art.visual_art_mediumTernary operationStoichiometrydescription
A generalization of the molar-ratio method is applied to the determination of the stoichiometry and apparent binding constant of metal nanoparticle-organic capping complexes (MmLx) using voltammetric data for the oxygen reduction reaction (ORR) in air-saturated aqueous phosphate buffer solutions. The method is applied to the formation of binary nanohybrids consisting of gold nanoparticles (AuNPs) capped with a rigid spacer, cucurbit[7]uril (CB), termed AuNP@CB, as well as to the formation of their ternary complexes (MmLxBz) with methylene blue (MB), termed AuNP@CB@MB. The obtained stoichiometries correspond to binding of four Au surface atoms for each CB unit.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2015-06-30 | Electroanalysis |