Novel silver nano-wedges for killing microorganisms

Pourjavadi, A ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.1016/j.materresbull.2011.07.040
  3. Abstract:
  4. In the current study, for the first time, photochemical facile green synthesis of salep capped silver nano-wedges was reported via the wet chemical synthesis procedure. Sunlight-UV as an available reducing agent caused mild reduction of silver ions to the silver nano-wedges. Salep as an effective capping/shaping polysaccharide bioresource material was used in the reaction medium and caused creation of flower-like self-assembled structures of the silver nano-wedges. The formation of silver nano-wedges and their flower-like self-assembled structures was confirmed by SEM technique. Further investigations were carried out using UV-vis, FTIR, GPC and XRD data. The prepared silver nano-wedges showed potent biocidal activity against three classes of microorganisms (Escherichia coli Gram-negative bacteria, Staphylococcus aureus Gram-positive bacteria and Candida albicans fungus). The silver nano-wedges prepared with this method can be introduced as real poniards because of their unique shape and antibacterial/antifungal activity and would be promising nominees for a wide range of biomedical applications
  5. Keywords:
  6. A. Nanostructures ; A. Polymers ; C. Infrared spectroscopy ; C. X-ray diffraction ; B. Chemical synthesi ; Biocidal activity ; Biomedical applications ; Candida albicans ; Flower-like ; FTIR ; Gram-negative bacteria ; Gram-positive bacterium ; Green synthesis ; Reaction medium ; Self assembled structures ; Silver ions ; Staphylococcus aureus ; Wet chemical synthesis ; XRD ; Escherichia coli ; Infrared spectroscopy ; Medical applications ; Metal ions ; Microbiology ; Synthesis (chemical) ; X ray diffraction ; Bacteria
  7. Source: Materials Research Bulletin ; Volume 46, Issue 11 , 2011 , Pages 1860-1865 ; 00255408 (ISSN)
  8. URL: http://www.sciencedirect.com/science/article/pii/S0025540811003679