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Updated: Jan 31, 2026

Large Area Substrate-Based Nanofabrication of Controllable and Customizable Gold Nanoparticles Via Capped Dewetting
Published on: February 26, 2019
Chitosan as a capping agent: Insights on the stabilization of gold nanoparticles
Antonio Franconetti1, Jose M Carnerero2, Rafael Prado-Gotor2
1Departament de Química, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain.
Abstract:
A theoretical method based on Dissipative Particle Dynamics (DPD) was applied for the study of the interaction between coarse-grained models of chitosan and gold nanoparticles. These models were used to understand the role of chitosan in the stabilization of gold nanoparticles (5 and 7 nm). In addition, this stabilization was also supported by synthesized and characterized chitosan-gold nanoparticles comparing their stabilities with typical citrate-gold nanoparticles. Finally, the role of chitosan as a capping agent through the steric and electrosteric mechanisms in aqueous media with different pH values was also evaluated.
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