Premium
Preparation of silver nanoparticle immobilized fibrillar silicate by poly(dopamine) surface functionalization
Author(s) -
Fu Ye,
Li Guofeng,
Tian Ming,
Wang Xing,
Zhang Liqun,
Wang Wencai
Publication year - 2014
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.39859
Subject(s) - surface modification , silicate , nanoparticle , materials science , chemical engineering , nanotechnology , surface (topology) , polymer chemistry , engineering , geometry , mathematics
Surface modified fibrillar silicate (FS) was prepared by dopamine oxide polymerization and self‐assembly of poly(dopamine) (PDA) on the FS surface, presynthesized silver nanoparticles subsequently adhered to the PDA functionalized FS (FS‐PDA) surface by simply dipping FS‐PDA in silver nanoparticles solution, owing to the metal‐binding ability of catechol and nitrogen‐containing groups on the PDA coating on the surface of FS. The chemical composition of the modified FS surface was determined by X‐ray photoelectron spectroscopy. Surface morphological changes of the FS nanofibers were observed by transmission electron microscopy. The results indicated that the in situ spontaneous oxidative polymerization of dopamine on the FS surface and the immobilization of Ag nanoparticles on the surface of FS were successful. The FS‐PDA/Ag demonstrated a significant enhancement in antibacterial properties compared to the pristine FS by using Escherichia coli as model strain. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014 , 131 , 39859.