期刊
CARBOHYDRATE POLYMERS
卷 207, 期 -, 页码 806-814出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2018.12.046
关键词
Chitosan; Gold nanoparticles; Coarse-grained model; DFT calculations; DPD simulations; Electrosteric
资金
- Junta de Andalucia [2011/FQM-142, P09-AGR-4597]
- Spanish Ministerio de Economia, Industria y Competitividad [MAT2015-70725R, CTQ2016-78703-P]
- Universidad de Sevilla (VPPI, V plan propio de Grupos emergentes) [PP2016-5937]
- Universidad de Sevilla (VIPP USO) [SSGG2018/00000665, OTRI2010/00000762]
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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