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Green synthesis of highly concentrated aqueous colloidal solutions of large starch-stabilised silver nanoplatelets

Cheng, Fei; Betts, Jonathan W.; Kelly, Stephen M.; Hector, Andrew L.

Authors

Fei Cheng

Jonathan W. Betts

Andrew L. Hector



Abstract

© 2014 Elsevier B.V. All rights reserved. A simple, environmentally friendly and cost-effective method has been developed to prepare a range of aqueous silver colloidal solutions, using ascorbic acid as a reducing agent,water-soluble starch as a combined crystallising, stabilising and solubilising agent, and water as the solvent. The diameter of silver nanoplatelets increases with higher concentrations of AgNO 3 and starch. The silver nanoparticles are also more uniform in shape the greater the diameter of the nanoparticles. Colloidal solutions with a very high concentration of large, flat, hexagonal silver nanoplatelets (∼230 nm in breadth) have been used to deposit and fix an antibacterial coating of these large starch-stabilised silver nanoplates on commercial cotton fibres, using a simple dip-coating process usingwater as the solvent, in order to study the dependence of the antibacterial properties of these nanoplatelets on their size.

Publication Date Jan 15, 2015
Journal Materials science and engineering : C
Print ISSN 0928-4931
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 46
Pages 530-537
APA6 Citation Cheng, F., Betts, J. W., Kelly, S. M., & Hector, A. L. (2015). Green synthesis of highly concentrated aqueous colloidal solutions of large starch-stabilised silver nanoplatelets. Materials Science and Engineering: C, 46, 530-537. https://doi.org/10.1016/j.msec.2014.10.041
DOI https://doi.org/10.1016/j.msec.2014.10.041
Keywords Silver; Nanoplatelets; Seed-mediated synthesis; Aqueous colloidal solutions; Antibacterial textiles; Water soluble starch; Green chemistry
Publisher URL http://www.sciencedirect.com/science/article/pii/S0928493114006614
Copyright Statement © 2016. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
Additional Information This is an authors accepted manuscript of an article published in Materials science and engineering : C, 2014, v.46.

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Copyright Statement
© 2016. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/





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