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Facile preparation of sepiolite-based composites and their antibacterial/rheological properties

Published online by Cambridge University Press:  24 April 2024

Yizhi Jiang ,
Zongfan Peng ,
Yongwen Yang ,
Yuqin Li ,
Yufang Tang  and
Yanhuai Ding Open the ORCID record for Yanhuai Ding [Opens in a new window]
Yizhi Jiang
Affiliation:
School of Mechanical Engineering and Mechanics, Xiangtan University, Hunan, China
Zongfan Peng
Affiliation:
School of Chemical Engineering, Xiangtan University, Hunan, China
Yongwen Yang*
Affiliation:
Department of Clinical Laboratory, Xiangya Hospital, Central South University, Changsha, Hunan, China
Yuqin Li
Affiliation:
School of Chemical Engineering, Xiangtan University, Hunan, China
Yufang Tang
Affiliation:
School of Chemical Engineering, Xiangtan University, Hunan, China
Yanhuai Ding*
Affiliation:
School of Mechanical Engineering and Mechanics, Xiangtan University, Hunan, China
*
Corresponding authors: Yanhuai Ding; Email: yhding@xtu.edu.cn; Yongwen Yang; Email: yongwen1007@csu.edu.cn
Corresponding authors: Yanhuai Ding; Email: yhding@xtu.edu.cn; Yongwen Yang; Email: yongwen1007@csu.edu.cn
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Abstract

Natural sepiolite has great potential for application in wound healing, haemostasis and medicines. This paper introduces a versatile solid-state sintering technique for preparing sepiolite-based nanocomposites with enhanced antibacterial properties, and the physical, structural, rheological and antibacterial properties of which were determined to be enhanced. The incorporation of nanosized Ag and metal oxides into sepiolite composites results in a notable improvement in their antibacterial efficacy against Escherichia coli and Staphylococcus aureus in comparison to the unmodified sepiolite. With a low silver content of just 5%, the sepiolite–Ag composite achieves an antibacterial rate of ~100%. Furthermore, the rheological properties exhibited by the sepiolite composites are noteworthy, suggesting their suitability for use in wound-dressing applications due to their exceptional workability. The methodology employed in this research has the potential to offer a viable substitute for the production of economical and effective natural antibacterial nanocomposites.

Keywords

Antibacterial propertiescompositesmetal oxidesrheological behavioursepiolite

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Type
Article
Information
Clay Minerals , Volume 59 , Issue 2 , June 2024 , pp. 127 - 135
Copyright
Copyright © The Author(s), 2024. Published by Cambridge University Press on behalf of The Mineralogical Society of the United Kingdom and Ireland

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