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Synthesis of Silver Nanoparticles by Clinacanthus nutans Extract Supported with Identification of Flavonoids by UPLC-QTOF/MS and Its Antimicrobial Activity

  • Hazrulrizawati Abd Hamid
  • Roziasyahira Mutazah
Research paper
  • 13 Downloads
Part of the following topical collections:
  1. Chemistry

Abstract

The present study reported a simple method in synthesizing silver nanoparticles (AgNPs) by using Clinacanthus nutans extract. The UV–visible spectra showed the characteristic absorption peak at 480 nm, and the intensity was increased with the increase in plant extract ratio and incubation period. Analysis of particle size through FESEM, XRD and TEM revealed the average of synthesized AgNPs is 73.4 nm. The EDX analysis confirmed the formation of metallic nature of silver. The FTIR spectra indicated the role of carbonyl groups in the synthetic process and further confirmed by identification of flavonoids and their glycosides by UPLC-QTOF/MS. Antimicrobial activity of biosynthesized AgNPs shows effective inhibition against common bacterial strains including Bacillus subtilis, Enterococcus faecalis, Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa and Proteus vulgaris.

Keywords

Silver nanoparticles Clinacanthus nutans Antimicrobial activity UPLC-QTOF/MS Flavonoids 

Notes

Acknowledgements

Our sincere appreciation to the Universiti Malaysia Pahang for their support and granting research grant RDU170356 to HA Hamid.

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Copyright information

© Shiraz University 2018

Authors and Affiliations

  1. 1.Faculty of Industrial Sciences and TechnologyUniversiti Malaysia PahangGambang KuantanMalaysia

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