title: Antibacterial activity of silver nanoparticles synthesized from serine.
abstract: Silver nanoparticles (Ag NPs) were synthesized by a simple microwave irradiation method using polyvinyl pyrrolidone (PVP) as a capping agent and serine as a reducing agent. UV-Visible spectra were used to confirm the formation of Ag NPs by observing the surface plasmon resonance (SPR) band at 443nm. The emission spectrum of Ag NPs showed an emission band at 484nm. In the presence of microwave radiation, serine acts as a reducing agent, which was confirmed by Fourier transformed infrared (FT-IR) spectrum. High-resolution transmission electron microscopy (HR-TEM) and high-resolution scanning electron microscopy (HR-SEM) were used to investigate the morphology of the synthesized sample. These images showed the sphere-like morphology. The elemental composition of the sample was determined by the energy dispersive X-ray analysis (EDX). Selected area electron diffraction (SAED) was used to find the crystalline nature of the Ag NPs. The electrochemical behavior of the synthesized Ag NPs was analyzed by the cyclic voltammetry (CV). Antibacterial experiments showed that the prepared Ag NPs showed relatively similar antibacterial activities, when compared with AgNO3 against Gram-positive and Gram-negative bacteria.
authors: Catalysis and Nanomaterials Research Laboratory, Department of Chemistry, Loyola College, Chennai 600 034, India; SRM Valliammai Engineering College, Department of Chemistry, Chennai 603 203, India.
authors: N
authors: N
authors: Jayaprakash
authors: Catalysis and Nanomaterials Research Laboratory, Department of Chemistry, Loyola College, Chennai 600 034, India. Electronic address: jjvijayaloyola@yahoo.co.in.
authors: J
authors: J
authors: Judith Vijaya
authors: Materials Division, School of Advanced Sciences, VIT University, Chennai Campus, Chennai 600 048, India.
authors: L
authors: L
authors: John Kennedy
authors: Department of Center for Advanced Study in Botany, University of Madras, Guindy Campus, Chennai 600 025, India.
authors: K
authors: K
authors: Priadharsini
authors: Department of Center for Advanced Study in Botany, University of Madras, Guindy Campus, Chennai 600 025, India.
authors: P
authors: P
authors: Palani
mesh_terms: D000900:Anti-Bacterial Agents / Q000737:chemistry* / Q000494:pharmacology; D006090:Gram-Negative Bacteria / Q000187:drug effects; D006094:Gram-Positive Bacteria / Q000187:drug effects; D053768:Metal Nanoparticles / Q000737:chemistry*; D008855:Microscopy, Electron, Scanning / Q000379:methods; D046529:Microscopy, Electron, Transmission / Q000379:methods; D010316:Particle Size; D012694:Serine / Q000737:chemistry*; D012834:Silver / Q000737:chemistry* / Q000494:pharmacology; D018030:Silver Compounds / Q000737:chemistry* / Q000494:pharmacology; D013052:Spectrometry, X-Ray Emission / Q000379:methods; D013056:Spectrophotometry, Ultraviolet / Q000379:methods; D017550:Spectroscopy, Fourier Transform Infrared / Q000379:methods; D014961:X-Ray Diffraction / Q000379:methods
chemical_list: D000900:Anti-Bacterial Agents; D018030:Silver Compounds; D012834:Silver; D012694:Serine
keywords: Electron microscopy; Microwave irradiation; Photoluminescence; Serine; Silver nanoparticles