Synthesis of Ag‐NPs impregnated cellulose composite material: its possible role in wound healing and photocatalysis. Issue 4 (22nd September 2016)

• Record Type: Journal Article
• Authors: Ali, Attarad; Haq, Ihsan Ul; Akhtar, Javeed; Sher, Muhammad; Ahmed, Naveed; Zia, Muhammad
• Is Part Of: IET nanobiotechnology. Volume 11:Issue 4(2017)
• Page Start: 477
• Page End: 484
• Publication Date: 2016-09-22
• Subjects: silver -- nanoparticles -- particle reinforced composites -- nanocomposites -- filled polymers -- wounds -- nanomedicine -- biomedical materials -- photochemistry -- catalysis -- X‐ray diffraction -- Fourier transform infrared spectra -- scanning electron microscopy -- thermal stability -- thermal analysis -- antibacterial activity -- dyes -- wastewater treatment -- contaminated site remediation -- nanofabrication; silver nanoparticles -- impregnated cellulose composite -- wound healing -- photocatalysis -- natural biopolymer -- citrus waste -- powder X‐ray diffraction -- Fourier transform infrared spectroscopy -- scanning electron microscopy -- thermal stability -- thermo‐gravimetric analysis -- antibacterial activity -- disc diffusion assay -- Staphylococcus aureus -- Escherichia coli -- inhibition zone -- broth -- 2, 2‐diphenyl 1‐picryl‐hydrazyl radical scavenging activity -- total reducing power ability -- total antioxidant potential -- methylene‐blue dye -- sunlight irradiation -- wound dressing -- bacterial attack -- free radical scavenger -- wastewater purification -- bioremediation filters -- wound site -- time 60 min -- Ag; Biotechnology -- Periodicals; Nanotechnology -- Periodicals; 660.6
• DOI: 10.1049/iet-nbt.2016.0086
• Languages: English
• ISSNs: 1751-8741

Abstract

Abstract : Cellulose is the natural biopolymer normally used as supporting agent with enhanced applicability and properties. In present study, cellulose isolated from citrus waste is used for silver nanoparticles (Ag‐NPs) impregnation by a simple and reproducible method. The Ag‐NPs fabricated cellulose (Ag‐Cel) was characterised by powder X‐rays diffraction, Fortier transform infrared spectroscopy and scanning electron microscopy. The thermal stability was studied by thermo‐gravimetric analysis. The antibacterial activity performed by disc diffusion assay reveals good zone of inhibition against Staphylococcus aureus and Escherichia coli by Ag‐Cel as compared Ag‐NPs. The discs also displayed more than 90% reduction of S. aureus culture in broth within 150 min. The Ag‐Cel discs also demonstrated minor 2, 2‐diphenyl 1‐picryl‐hydrazyl radical scavenging activity and total reducing power ability while moderate total antioxidant potential was observed. Ag‐Cel effectively degrades methylene‐blue dye up to 63.16% under sunlight irradiation in limited exposure time of 60 min. The Ag‐NPs impregnated cellulose can be effectively used in wound dressing to prevent bacterial attack and scavenger of free radicals at wound site, and also as filters for bioremediation and wastewater purification.