title: Synthesis and characterisation of flower shaped zinc oxide nanostructures and its antimicrobial activity.
abstract: Flower shaped Zinc Oxide nanostructures was synthesized using a simple method without using any structure directing agents. Elemental analysis, crystalline nature, shape and size were examined using Powder X-ray Diffraction (XRD), scanning electron microscopy (SEM), High Resolution Transmission Electron Microscopy (HRTEM) and Energy Dispersive X-ray Spectroscopy (EDAX). XRD revealed the formation of hexagonal ZnO nanostructures. SEM and TEM analyses revealed the formation of crystalline ZnO flowers in which a bunch of ZnO nanorods assembled together to form a leaf like structure followed by flower shaped ZnO nanostructures. Thus synthesised ZnO nanostructures showed good antimicrobial activity towards gram-positive bacteria Staphylococcus aureus as well as gram-negative bacteria Escherichia coli with a MIC/MBC of 25mg/L.
authors.affiliation: Trace Elements Speciation Research Laboratory, Environmental and Analytical Chemistry Division, School of Advanced Sciences, VIT University, Vellore 632 014, TN, India.
authors.forename: Kesarla
authors.initials: K
authors.lastname: Mohan Kumar
authors.forename: Badal Kumar
authors.initials: BK
authors.lastname: Mandal
authors.forename: Etcherla
authors.initials: E
authors.lastname: Appala Naidu
authors.forename: Madhulika
authors.initials: M
authors.lastname: Sinha
authors.forename: Koppala
authors.initials: K
authors.lastname: Siva Kumar
authors.forename: Pamanji
authors.initials: P
authors.lastname: Sreedhara Reddy
mesh_terms: D000890:Anti-Infective Agents / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*; D004926:Escherichia coli / Q000187:drug effects; D008826:Microbial Sensitivity Tests; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure; D013052:Spectrometry, X-Ray Emission; D013211:Staphylococcus aureus / Q000187:drug effects; D014961:X-Ray Diffraction; D015034:Zinc Oxide / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*
chemical_list: D000890:Anti-Infective Agents; D015034:Zinc Oxide