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Electrochemical sensing of dopamine and antibacterial properties of ZnO nanoparticles synthesized from solution combustion method

  • K. Manjunath
  • , K. Lingaraju
  • , D. Kumar
  • , H. Nagabhushan
  • , D. Samrat
  • , V. Reddy
  • , J. Dupont
  • , T. Ramakrishnappa
  • , G. Nagaraju

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

We have successfully synthesized ZnO nanoparticles (NPs) from solution combustion method using combustible fuel (Green gram). XRD pattern confirms that the prepared compound is composed of wurtzite hexagonal zinc-oxide. FTIR spectrum of ZnO NPs shows the band at 417 cm-1 associated with the characteristic vibration of Zn-O. The UV-Vis spectrum shows a strong absorption band at 365 nm which is blue shifted due to quantum confinement effect. TEM images show the average sizes of the nanoparticles are found to be almost 15-30 nm. The as-synthesized product shows good electrochemical sensing of dopamine. Furthermore the antibacterial properties of ZnO NPs were investigated by their bactericidal activity against four bacterial strains using the agar well diffusion method.

Original languageEnglish
Article number1550005
JournalInternational Journal of Nanoscience
Volume14
Issue number3
DOIs
StatePublished - 28 Jun 2015
Externally publishedYes

Keywords

  • Antibacterial activity
  • Combustion
  • Dopamine
  • Sensor
  • ZnO

ASJC Scopus subject areas

  • Biotechnology
  • Bioengineering
  • General Materials Science
  • Condensed Matter Physics
  • Computer Science Applications
  • Electrical and Electronic Engineering

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