Work

Controlled high-yield assembly of gold nanoparticles via amide bond formation

Year: 2026

Type: article

Abstract: -AuNPs and COOH-AuNPs form covalently linked assemblies with yields of 95 ± 5%. The resulting nanoassemblies exhibit well-defined 1 : 1 or 1 : 2 core-satellite stoichiometries, reflecting the limited availability of activated carboxyl groups. Raman spectroscopy confirms the formation of interparticle amide bonds. Finally, we demonstrate that this method is broadly applicable to the high-yield assembly of AuNPs across diverse shapes (nanospheres, nanocubes, nanorods) and sizes (14-101 nm). This strategy provides a versatile platform for constructing plasmonic nanoassemblies with chemical reactions.

Source: Chemical Science

DOI: 10.1039/d5sc08787b

Authors: Seoyoung Hwang, Yeonsoo Lim, Sunbum Kwon, Sangwoon Yoon

Institution: Chung-Ang University

Language: English

Topic: Gold and Silver Nanoparticles Synthesis and Applications

Subfield: Electronic, Optical and Magnetic Materials

Field: Materials Science

Domain: Physical Sciences

Open Access status: diamond

Funders: National Research Foundation, Chung-Ang University, National Research Foundation of Korea

Awards: G1250513115, G2977350506, G3184381001