Size-controlled synthesis of monodispersed gold nanoparticles stabilized by polyelectrolyte-functionalized ionic liquid
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Updated: May 30, 2026
Gold Nanoparticle Synthesis
Published on: July 10, 2021
Changsheng Shan1, Fenghua Li, Fuyu Yuan
1State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, and Graduate University of the Chinese Academy of Sciences, Chinese Academy of Sciences, Changchun 130022, People's Republic of China.
Abstract:
The size-controlled synthesis of monodispersed gold nanoparticles (AuNPs) stabilized by polyelectrolyte-functionalized ionic liquid (PFIL) is described. The resulting AuNPs' size, with a narrow distribution, can be tuned by the concentration of HAuCl(4). Such PFIL-stabilized AuNPs (PFIL-AuNPs) showed a high stability in water at room temperature for at least one month; they were also quite stable in solutions of pH 7-13 and high concentration of NaCl. In addition, the PFIL-AuNPs exhibited obvious electrocatalytical activity toward β-nicotinamide adenine dinucleotide (NADH for short, a cofactor in enzymatic reactions of NAD(+)/NADH(-)-dependent dehydrogenases) oxidation, suggesting a potential application for bioelectroanalysis.
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