title: Synthesis of silver nanoparticles using A. indicum leaf extract and their antibacterial activity.
abstract: Green synthesis of silver nanoparticles has been achieved using environmentally acceptable plant extract. It is observed that Abutilon indicum leaf extract can reduce silver ions into silver nanoparticles within 15 min of reaction time. The formation and stability of the reduced silver nanoparticles in the colloidal solution were monitored by UV-Vis spectrophotometer analysis. The mean particle diameter of silver nanoparticles was calculated from the XRD pattern. FT-IR spectra of the leaf extract after the development of nanoparticles are determined to allow identification of possible functional groups responsible for the conversion of metal ions to metal nanoparticles. The AgNPs thus obtained showed highly potent antibacterial activity toward Gram-positive (Staphyloccocus aureus and Bacillus subtilis) and Gram-negative (Salmonella typhi and Escherichia coli) microorganisms.
authors.affiliation: Department of Physics, Annamalai University, Annamalainagar 608002, Tamil Nadu, India. Electronic address: ashokphy86@gmail.com.
authors.forename: S
authors.initials: S
authors.lastname: Ashokkumar
authors.affiliation: Department of Engg. Physics, Annamalai University, Annamalainagar 608002, Tamil Nadu, India. Electronic address: ambedraviphy@gmail.com.
authors.forename: S
authors.initials: S
authors.lastname: Ravi
authors.affiliation: Department of Physics, Annamalai University, Annamalainagar 608002, Tamil Nadu, India.
authors.forename: V
authors.initials: V
authors.lastname: Kathiravan
authors.affiliation: Department of Engg. Physics, Annamalai University, Annamalainagar 608002, Tamil Nadu, India.
authors.forename: S
authors.initials: S
authors.lastname: Velmurugan
mesh_terms: D000900:Anti-Bacterial Agents / Q000138:chemical synthesis / Q000494:pharmacology*; D001412:Bacillus subtilis / Q000187:drug effects / Q000302:isolation & purification; D060326:Chemistry Techniques, Synthetic; D004926:Escherichia coli / Q000187:drug effects / Q000302:isolation & purification; D055772:Green Chemistry Technology / Q000379:methods*; D006801:Humans; D019660:Malvaceae / Q000737:chemistry*; D053768:Metal Nanoparticles / Q000737:chemistry*; D008826:Microbial Sensitivity Tests; D008855:Microscopy, Electron, Scanning; D046529:Microscopy, Electron, Transmission; D010936:Plant Extracts / Q000737:chemistry*; D018515:Plant Leaves / Q000737:chemistry; D012485:Salmonella typhi / Q000187:drug effects / Q000302:isolation & purification; D012834:Silver / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared; D013211:Staphylococcus aureus / Q000187:drug effects / Q000302:isolation & purification; D014961:X-Ray Diffraction
chemical_list: D000900:Anti-Bacterial Agents; D010936:Plant Extracts; D012834:Silver
keywords: Abutilon indicum; Antimicrobial activity; Green synthesis; Nanoparticles