We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Synthesis and attachment of silver and copper nanoparticles on cellulose nanofibers and comparative antibacterial study.
- Authors
Phan, Duy-Nam; Dorjjugder, Nasanjargal; Khan, Muhammad Qamar; Saito, Yusuke; Taguchi, Goro; Lee, Hoik; Mukai, Yasuhito; Kim, Ick-Soo
- Abstract
Metal nanoparticles are considered intriguing to academic society, due to a wide spectrum of applications in electronics, biomedical engineering, optics, and medicine. In this study, effective methods of decorating cellulose nanofibers (CNFs), deacetylated from cellulose acetate nanofibers, with silver nanoparticles (AgNPs) via ultraviolet radiation and copper nanoparticles (CuNPs) via chemical reduction were reported. The formation of metal nanoparticles was confirmed by scanning electron microscopy and transmission electron microscopy. The sizes and the metal contents of AgNPs incorporated CNFs (Ag/CNFs) were demonstrated to correlate well with the concentrations of immersion solutions; whereas sizes of CuNPs decorated CNFs, denoted as Cu/CNFs, did not change significantly upon the increased concentrations of wetting solutions. Bacterial inhibition zones and the bactericidal efficacy were investigated against both gram-negative and gram-positive bacteria; interestingly, the results revealed superior bactericidal activity against E. coli for Ag/CNFs and better antibacterial properties against B. subtilis for Cu/CNFs.
- Subjects
CELLULOSE acetate; SILVER nanoparticles; SCANNING transmission electron microscopy; METAL nanoparticles; CELLULOSE; NANOFIBERS; TRANSMISSION electron microscopy
- Publication
Cellulose, 2019, Vol 26, Issue 11, p6629
- ISSN
0969-0239
- Publication type
Article
- DOI
10.1007/s10570-019-02542-6