title: Understanding the stability of silver nanoparticles bio-fabricated using Acacia arabica (Babool gum) and its hostile effect on microorganisms.
abstract: We report green synthesis of stable silver nanoparticles (SNPs) from Acacia arabica gum and its anti-bacterial activity against gram-positive and gram-negative bacteria. UV-Vis spectral analysis of synthesized SNPs showed maximum peak at 462 nm initially and 435 nm after 24 h. Using Transmission Electron microscopy (TEM), the average size of synthesised SNPs was found to be ~35 nm. X-ray diffraction (XRD) and Selective area electron diffraction (SAED) pattern confirmed the crystalline nature of SNPs. Percentage conversion of Ag(+) ions into Ag° was calculated using ICP-AES and was found to be 94%. By calculating flocculation parameter, we could see that these SNPs are extremely stable under the influence of very high NaCl concentration up to 4.16 M. These stable SNPs can be used in various industrial and medical applications.
authors.affiliation: N.S.N. Research Center for Nanotechnology and Bionanotechnology, Ambernath, MS, India.
authors.forename: Mukeshchand
authors.initials: M
authors.lastname: Thakur
authors.forename: Sunil
authors.initials: S
authors.lastname: Pandey
authors.forename: Ashmi
authors.initials: A
authors.lastname: Mewada
authors.forename: Ritu
authors.initials: R
authors.lastname: Shah
authors.forename: Goldie
authors.initials: G
authors.lastname: Oza
authors.forename: Madhuri
authors.initials: M
authors.lastname: Sharon
mesh_terms: D000045:Acacia / Q000737:chemistry*; D000900:Anti-Bacterial Agents / Q000737:chemistry* / Q000494:pharmacology; D001412:Bacillus subtilis / Q000187:drug effects; D055772:Green Chemistry Technology; D006170:Gum Arabic / Q000737:chemistry*; D006801:Humans; D053758:Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D011552:Pseudomonas Infections / Q000188:drug therapy; D011550:Pseudomonas aeruginosa / Q000187:drug effects; D019163:Reducing Agents / Q000737:chemistry; D012834:Silver / Q000737:chemistry* / Q000494:pharmacology
chemical_list: D000900:Anti-Bacterial Agents; D019163:Reducing Agents; D012834:Silver; D006170:Gum Arabic