Green synthesis of silver nanoparticles and their antimicrobial activities

DOI

10.2991/iceesd-17.2017.138How to use a DOI?

Keywords

nanocellulose; periodate oxidation; silver nanoparticles; antimicrobial

Abstract

In the present study, nanocellulose, extracted from fully bleached kraft pulp by sulfuric acid hydrolysis, was firstly oxidized using periodate to obtain dialdehyde nanocellulose (DANC). Then, DANC was used as both reducing and stabilizing agent to prepare Ag-NPs. The synthesized Ag-NPs were characterized by using UV-Vis spectroscopy, X-ray diffraction (XRD), and atomic absorption spectroscopy (AAS). Furthermore, the antimicrobial activity was investigated. The addition of DANC to silver nitrate solution resulted in color change from white to dark brown at varied pH. The formation of Ag-NPs was evidenced by measuring the surface plasmon resonance peak at around 400 nm using UV-vis spectroscopy. XRD data showed diffraction peaks at 2 38.33§, 44.55§, 64.27§, 77.66§, which can be indexed to (111), (200), (220), (311), and (222) planes of pure silver, indicating he biosynthesis of silver nanoparticles The synthesized Ag-NPs showed high antimicrobial and bactericidal activity against Gram-positive and Gram-negative bacteria.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Hao Chen
AU  - Qinghua Xu
PY  - 2017/04
DA  - 2017/04
TI  - Green synthesis of silver nanoparticles and their antimicrobial activities
BT  - Proceedings of the 2017 6th International Conference on Energy, Environment and Sustainable Development (ICEESD 2017)
PB  - Atlantis Press
SP  - 753
EP  - 756
SN  - 2352-5401
UR  - https://doi.org/10.2991/iceesd-17.2017.138
DO  - 10.2991/iceesd-17.2017.138
ID  - Chen2017/04
ER  -