Synthesis of silver nanoparticles using aqueous extracts of Heterotheca inuloides as reducing agent and natural fibers as templates: Agave lechuguilla and silk

被引：41

作者：

Morales-Luckie, Raul A. ^{[1
]}

Adrian Lopezfuentes-Ruiz, Aldo ^{[1
]}

Olea-Mejia, Oscar F. ^{[1
]}

Liliana, Argueta-Figueroa ^{[1
]}

Sanchez-Mendieta, Victor ^{[2
]}

Brostow, Witold ^{[3
]}

Hinestroza, Juan P. ^{[4
]}

机构：

[1] Univ Autonoma Estado Mexico, Ctr Conjunto Invest Quim Sustentable UAEM UNAM, Carretera Toluca Atlacomulco Km 14-5, Toluca 50200, Estado De Mexic, Mexico

[2] Univ Autonoma Estado Mexico, Fac Quim, Toluca 50120, Estado De Mexic, Mexico

[3] Univ North Texas, Dept Mat Sci & Engn, LAPOM, 1150 Union Circle 305310, Denton, TX USA

[4] Cornell Univ, Dept Fiber Sci & Apparel Design, 242 Van Rensselaer Hall, Ithaca, NY 14853 USA

来源：

MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS | 2016年 / 69卷

关键词：

Fibers; Mechanical properties; Agave lechuguilla; Silver nanocomposite; Heterotheca inuloides; Silk; IN-SITU SYNTHESIS; OPPORTUNITIES; CONSTITUENTS; CHALLENGES;

D O I：

10.1016/j.msec.2016.06.066

中图分类号：

TB3 [工程材料学]; R318.08 [生物材料学];

学科分类号：

0805 ; 080501 ; 080502 ;

摘要：

Silver nanoparticles (Ag NPs) were synthesized using a one-pot green methodology with aqueous extract of Heterotheca inuloides as a reducing agent, and the support of natural fibers: Agave lechuguilla and silk. UV-Vis spectroscopy, X-Ray photoelectron spectroscopy XPS and transmission electron microscopy TEM were used to characterize the resulting bionanocomposite fibers. The average size of the Ag NPs was 16 nm and they exhibited low polydispersity. XPS studies revealed the presence of only metallic Ag in the nanoparticles embedded in Agave. lechuguilla fibers. Significant antibacterial activities against gram-negative Fscherichia coli and gram-positive Staphylococcus aureus were determined. AgO as well as metallic Ag phases were detected when silk threads were used as a substrates hinting at the active role of substrate during the nucleation and growth of Ag NPs. These bionanocomposites have excellent mechanical properties in tension which in addition to the antibacterial properties indicate the potential use of these modified natural fibers in surgical and biomedical applications. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：429 / 436

页数：8

共 36 条

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