Biosynthesis of novel zinc oxide nanoparticles (ZnO NPs) using endophytic bacteria Sphingobacterium thalpophilum

Neethipathi Rajabairavi, Chellappan Soundar Raju, Chandrasekaran Karthikeyan, Kandhan Varutharaju, Shanmugam Nethaji, Abdulrahman Syedahamed Haja Hameed, Appakan Shajahan

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

80 Scopus citations

Abstract

In the present work, we describe the synthesis of zinc oxide nanoparticles (ZnO NPs) using culture supernatant of endophytic bacterial isolate Sphingobacterium thalpophilum and their antibacterial efficiency against bacterial pathogens. In the process of reduction aqueous zinc nitrate being extra-cellular which lead to the development of an easy bioprocess for synthesis of ZnO NPs. The ZnO NPs were characterized by X-ray Powder Diffraction (XRD), Field emission scanning electron microscopy (FESEM) and Energy dispersive X-ray analysis (EDAX). Ultraviolet-Visible (UV-Vis) Spectrometer and Fourier transfer infrared rays (FTIR) analysis. Antibacterial efficiency of ZnO NPs are tested with two bacterial pathogens Pseudomonas aeruginosa and Enterobacter aerogens using the disc diffusion method to determine their ability as potential antimicrobial agents. This ZnO NPs showed improved antibacterial activity on both tested strains. This was confirmed by zone of inhibition measurements.

Original languageEnglish
Title of host publicationRecent Trends in Materials Science and Applications - Nanomaterials, Crystal Growth, Thin films, Quantum Dots, and Spectroscopy, Proceedings ICRTMSA 2016
EditorsJeyasingh Ebenezar
PublisherSpringer Science and Business Media, LLC
Pages245-254
Number of pages10
ISBN (Print)9783319448893
DOIs
StatePublished - 2017
EventInternational Conference on Recent Trends in Materials Science and Applications, ICRTMSA 2016 - Tiruchirappalli, India
Duration: 29 Feb 201629 Feb 2016

Publication series

NameSpringer Proceedings in Physics
Volume189
ISSN (Print)0930-8989
ISSN (Electronic)1867-4941

Conference

ConferenceInternational Conference on Recent Trends in Materials Science and Applications, ICRTMSA 2016
Country/TerritoryIndia
CityTiruchirappalli
Period29/02/1629/02/16

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