title: Biogenic synthesis of multi-applicative silver nanoparticles by using Ziziphus Jujuba leaf extract.
abstract: Herein, we are reporting for the first time one step biogenic synthesis of silver nanoparticles (AgNPs) at room temperature by using Ziziphus Jujuba leaf extract as a reducing and stabilizing agent. The process of nanoparticles preparation is green, rapid, environmentally benign and cost effective. The synthesized AgNPs were characterized by means of UV-Vis., XRD, FT-IR, TEM, DLS and Zeta potential. The absorption band centered at λmax 434 nm in UV-Vis. reflects surface plasmon resonance (SPR) of AgNPs. XRD analysis revealed, that biosynthesized AgNPs are crystalline in nature with the face centered cubic structure. FT-IR analysis indicates that nanoparticles were capped with the leaf extract. TEM images shows the synthesized nanoparticles are having different shapes with 20-30 nm size. The data obtained from DLS that support the hydrodynamic size of 28 nm. Zeta potential of -26.4 mV indicates that the nanoparticles were highly stable in colloidal state. The effect of pH, quantity of leaf extract and concentrations of AgNO3 were also studied to attend control over the particle size and stability. The synthesized AgNPs shows highly efficient catalytic activity towards the reduction of anthropogenic pollutant 4-nitrophenol (4-NP) and Methylene Blue (MB) for environmental protection. Synthesized AgNPs also exhibited good antimicrobial activity against Escherichia coli.
authors.affiliation: Nanomaterials Research Laboratory, Department of Chemistry, Shivaji University, Kolhapur 416004, M.S., India.
authors.forename: N L
authors.initials: NL
authors.lastname: Gavade
authors.affiliation: Nanomaterials Research Laboratory, Department of Chemistry, Shivaji University, Kolhapur 416004, M.S., India.
authors.forename: A N
authors.initials: AN
authors.lastname: Kadam
authors.affiliation: Nanomaterials Research Laboratory, Department of Chemistry, Shivaji University, Kolhapur 416004, M.S., India.
authors.forename: M B
authors.initials: MB
authors.lastname: Suwarnkar
authors.affiliation: Department of Biotechnology Engineering, KIT's College of Engineering, Kolhapur 416004, M.S., India.
authors.forename: V P
authors.initials: VP
authors.lastname: Ghodake
authors.affiliation: Nanomaterials Research Laboratory, Department of Chemistry, Shivaji University, Kolhapur 416004, M.S., India. Electronic address: kmg_chem@unishivaji.ac.in.
authors.forename: K M
authors.initials: KM
authors.lastname: Garadkar
mesh_terms: D000900:Anti-Bacterial Agents / Q000494:pharmacology; D002384:Catalysis; D004926:Escherichia coli / Q000187:drug effects; D055772:Green Chemistry Technology / Q000379:methods*; D006863:Hydrogen-Ion Concentration; D008027:Light; D053768:Metal Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D008826:Microbial Sensitivity Tests; D009596:Nitrophenols / Q000737:chemistry; D010316:Particle Size; D010936:Plant Extracts / Q000737:chemistry*; D018515:Plant Leaves / Q000737:chemistry*; D012542:Scattering, Radiation; D012834:Silver / Q000494:pharmacology*; D013056:Spectrophotometry, Ultraviolet; D017550:Spectroscopy, Fourier Transform Infrared; D055672:Static Electricity; D013997:Time Factors; D014961:X-Ray Diffraction; D031957:Ziziphus / Q000737:chemistry*
chemical_list: D000900:Anti-Bacterial Agents; D009596:Nitrophenols; D010936:Plant Extracts; D012834:Silver; C024836:4-nitrophenol
keywords: Ag nanoparticles; Antimicrobial activity; Biogenic synthesis; Reduction of 4-nitrophenol; XRD analysis; Ziziphus Jujuba leaf extract