Silver coated anionic cellulose nanofiber composites for an efficient antimicrobial activity.
Herein, we report a comparative study of silver coated anionic cellulose nanocomposite before (CMC-Ag) and after (AgNPs/CMC) chemical reduction for antibacterial activity. Cellulose nanofibers were prepared by deacetylation of electrospun cellulose acetate nanofibers, which were then treated with sodium chloroacetate to prepare anionic cellulose nanofibers (CMC). Aqueous AgNO3 solution with different concentrations was employed to produce nanofiber composites. To obtain AgNPs/CMC, the resultant Ag/CMC nanofibers were chemically reduced with NaBH4. The nanocomposites were characterized by FE-SEM, FTIR, XPS and SEM-EDS. Antimicrobiality tests were conducted using S. aureus and Escherichia coli bacteria following standard test method JIS L1902, 2008. The EDS results confirmed higher silver content in CMC-Ag nanofibers than AgNPs/CMC nanofibers. The antimicrobial test and EDS results demonstrated higher silver release (larger halo width) by the former in comparison to later which confers better antimicrobiality by CMC-Ag nanofibers.
Department of Applied Bioscience, College of Life & Environment Science, Konkuk University, Seoul, South Korea.
Mayakrishnan
M
Gopiraman
Nano Fusion Technology Research Group, Division of Frontier Fibers, Institute for Fiber Engineering (IFES), Interdisciplinary Cluster for Cutting Edge Research (ICCER), Shinshu University, Tokida 3-15-1, Ueda, Nagano Prefecture, 386-8567, Japan.
Abdul Wahab
AW
Jatoi
Nano Fusion Technology Research Group, Division of Frontier Fibers, Institute for Fiber Engineering (IFES), Interdisciplinary Cluster for Cutting Edge Research (ICCER), Shinshu University, Tokida 3-15-1, Ueda, Nagano Prefecture, 386-8567, Japan.
Seki
S
Hiromichi
Nano Fusion Technology Research Group, Division of Frontier Fibers, Institute for Fiber Engineering (IFES), Interdisciplinary Cluster for Cutting Edge Research (ICCER), Shinshu University, Tokida 3-15-1, Ueda, Nagano Prefecture, 386-8567, Japan.
Kyohei
K
Yamaguchi
Department of Applied Organic Materials Engineering, Inha University, Inha-Ro 100, Nam-Gu, Incheon, South Korea.
Han-Yong
HY
Jeon
Department of Applied Bioscience, College of Life & Environment Science, Konkuk University, Seoul, South Korea. Electronic address: imcim@konkuk.ac.kr.
Ill-Min
IM
Chung
Nano Fusion Technology Research Group, Division of Frontier Fibers, Institute for Fiber Engineering (IFES), Interdisciplinary Cluster for Cutting Edge Research (ICCER), Shinshu University, Tokida 3-15-1, Ueda, Nagano Prefecture, 386-8567, Japan. Electronic address: kimicksoo.gr@gmail.com.
Kim
K
Ick Soo
D000900:Anti-Bacterial Agents / Q000737:chemistry* / Q000494:pharmacology*; D002482:Cellulose / Q000737:chemistry* / Q000494:pharmacology*; D004926:Escherichia coli / Q000187:drug effects; D053761:Nanocomposites / Q000737:chemistry*; D057139:Nanofibers / Q000737:chemistry*; D012834:Silver / Q000737:chemistry*; D013211:Staphylococcus aureus / Q000187:drug effects
D000900:Anti-Bacterial Agents; D012834:Silver; D002482:Cellulose
Acetone (Pub Chem CID: 180); Antimicrobiality; Chloroacetic acid (Pub Chem CID: 300); DMF (Pub Chem CID: 6228); Electrospinning; Nanocomposites; Reduction; Silver; Silver nitrate (Pub Chem CID: 24470); Sodium carbonate (Pub Chem CID: 10340); Sodium hydroxide (Pub Chem CID: 14798); Sodium tetrahydroborate (Pub Chem CID: 22959485)