Modification of natural fibers from Thespesia lampas plant by in situ generation of silver nanoparticles in single-step hydrothermal method |
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| Authors: | B. Ashok Krittirash Yorseng N. Rajini N. Hariram Suchart Siengchin |
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| Affiliation: | 1. Department of Physics, Osmania University College of Engineering, Hyderabad, India;2. The Sirindhorn International Thai German Graduate School of Engineering (TGGS), King Mongkut’s University of Technology North Bangkok, Bangkok, Thailand;3. Center for Composite Materials, Department of Mechanical Engineering, Kalasalingam University, Krishnankoil, India;4. Department of Biotechnology, Kalasalingam University, Krishnankoil, India |
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| Abstract: | Ligno-cellulosic fibers have a great market and propose higher value addition and options to develop various products but they do not have inherent antimicrobial properties. In this study, a simple hydrothermal method was applied to build up antimicrobial properties to natural fibers by in situ-generating silver nanoparticles (AgNPs) in them. Herein, the ligno-cellulosic Thespesia lampas natural fibers were selected to develop antimicrobial activity using silver nitrate (AgNO3) solution by hydrothermal method. The modified fibers were characterized by SEM, FTIR, XRD, TGA, and antibacterial activity tests. The modified fibers had spherical AgNPs with an average size of 95?nm. The thermal stability of the modified fibers was higher than that of the unmodified fibers. The modified fibers exhibited good antibacterial activity against both the Gram negative and Gram positive bacteria. These modified fibers can be considered as fillers in polymer matrices to make antibacterial composites. |
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| Keywords: | Thespesia natural fibers in situ generation silver nanoparticles antibacterial activity thermal stability |
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