期刊
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
卷 29, 期 -, 页码 63-70出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jiec.2015.03.018
关键词
Surface modification; Nanocomposite; Magnetite; Silver; Antimicrobial
资金
- Thailand Research Fund (TRF) [DBG5580002]
- Thailand Toray Science Foundation (TTSF)
- Center of Excellence for Innovation in Chemistry (PERCH-CIC), Commission on Higher Education, Ministry of Education
Surface modification of magnetite nanoparticle (MNP) with cysteine for efficient conjugation with silver nanoparticle (AgNP) is herein presented. This novel nanocomposite was prepared via a specific binding interaction between thiol groups of cysteine coated on the MNP and the surface of AgNP. Transmission electron microscopy indicated the formation of the nanocomposite with 18-24 nm silver nanoparticles and 8-12 nm magnetite nanoparticles. Energy dispersive spectrometry verified the presence of both Ag and Fe in the nanocomposite. After repetitive adsorption-desorption-washing process, the nanocomposite retained higher than 90% antibacterial efficiency against Escherichia coli K12 for at least five recycling cycles. (C) 2015 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
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