title: Novel Cu@SiO2/bacterial cellulose nanofibers: Preparation and excellent performance in antibacterial activity.
abstract: The antibacterial composite based on bacterial cellulose (BC) was successfully prepared by in-situ synthesis of SiO2 coated Cu nanoparticles (Cu@SiO2/BC) and its properties were characterized. Its chemical structures and morphologies were evaluated by Fourier transformation infrared spectrum (FTIR), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). The results demonstrated that the SiO2 coated Cu particles were well homogeneously precipitated on the surface of BC. The Cu@SiO2/BC was more resistant to oxidation than the Cu nanoparticles impregnated into BC (Cu/BC) and then Cu@SiO2/BC could prolong the antimicrobial activity against Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli).
authors.affiliation: Chemicobiology and Functional Materials Institute of Nanjing University of Science and Technology, Xiao Ling Wei 200, Nanjing 210094, China; Department of Life Sciences of Lianyungang Teacher's College, Sheng Hu Lu 28, Lianyungang 222006, China.
authors.forename: Bo
authors.initials: B
authors.lastname: Ma
authors.affiliation: Chemicobiology and Functional Materials Institute of Nanjing University of Science and Technology, Xiao Ling Wei 200, Nanjing 210094, China.
authors.forename: Yang
authors.initials: Y
authors.lastname: Huang
authors.affiliation: Chemicobiology and Functional Materials Institute of Nanjing University of Science and Technology, Xiao Ling Wei 200, Nanjing 210094, China.
authors.forename: Chunlin
authors.initials: C
authors.lastname: Zhu
authors.affiliation: Chemicobiology and Functional Materials Institute of Nanjing University of Science and Technology, Xiao Ling Wei 200, Nanjing 210094, China.
authors.forename: Chuntao
authors.initials: C
authors.lastname: Chen
authors.affiliation: Chemicobiology and Functional Materials Institute of Nanjing University of Science and Technology, Xiao Ling Wei 200, Nanjing 210094, China.
authors.forename: Xiao
authors.initials: X
authors.lastname: Chen
authors.affiliation: Chemicobiology and Functional Materials Institute of Nanjing University of Science and Technology, Xiao Ling Wei 200, Nanjing 210094, China.
authors.forename: Mengmeng
authors.initials: M
authors.lastname: Fan
authors.affiliation: Chemicobiology and Functional Materials Institute of Nanjing University of Science and Technology, Xiao Ling Wei 200, Nanjing 210094, China. Electronic address: sundpe301@163.com.
authors.forename: Dongping
authors.initials: D
authors.lastname: Sun
mesh_terms: D000900:Anti-Bacterial Agents / Q000737:chemistry* / Q000494:pharmacology; D002482:Cellulose / Q000737:chemistry*; D003300:Copper / Q000737:chemistry*; D004926:Escherichia coli / Q000187:drug effects; D041822:Gluconacetobacter xylinus / Q000378:metabolism; D053768:Metal Nanoparticles / Q000737:chemistry; D008826:Microbial Sensitivity Tests; D008855:Microscopy, Electron, Scanning; D046529:Microscopy, Electron, Transmission; D057139:Nanofibers / Q000737:chemistry*; D056951:Photoelectron Spectroscopy; D012822:Silicon Dioxide / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared; D013211:Staphylococcus aureus / Q000187:drug effects; D014961:X-Ray Diffraction
chemical_list: D000900:Anti-Bacterial Agents; D012822:Silicon Dioxide; D003300:Copper; D002482:Cellulose
keywords: Antibacterial activity; Bacterial cellulose; Cu; Oxidation; SiO(2)