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Antimicrobial Activity of Biosynthesized Silver Nanoparticles Decorated Silica Nanoparticles

  • Sachin V. Otari
  • Sanjay K. S. Patel
  • Vipin C. Kalia
  • In-Won KimEmail author
  • Jung-Kul LeeEmail author
Short communications
  • 21 Downloads

Abstract

The production of cheap and effective compound for medicinal application is a major challenge for scientific community. So, several biological materials have been explored for the possible application in material synthesis which are useful in biomedical uses. Here, biomolecules from green tea leaves were functionalized on the surface of silicon dioxide nanoparticles (GSiO2 NPs). Next, the decoration silver (Ag) NPs on the surface of the GSiO2 NPs was observed in very short time of incubation in aqueous AgNO3. Ultraviolet–visible spectroscopy confirmed the formation of Ag NPs and the high-resolution transmission and scanning electron microscopies confirmed the decoration of spherical Ag NPs of 10 to 15 nm size on the surface of GSiO2 NPs. The antimicrobial activity of the Ag–GSiO2 NPs was determined against Staphylococcus aureus and Escherichia coli. The Ag–GSiO2 NPs displayed sustainable antimicrobial activity compared to Ag ions. The results indicate the potential value of Ag–GSiO2 NPs in surgical material and food processing.

Keywords

Biosynthesis Silver nanoparticles Green tea Biomolecules Antimicrobial 

Notes

Acknowledgements

This research was supported by Basic Science Research Program (2013M3A6A8073184, NRF-2018H1D3A2001746) through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT & Future Planning. This paper was written as part of Konkuk University’s research support program for its faculty on sabbatical leave in 2018.

Supplementary material

12088_2019_812_MOESM1_ESM.docx (353 kb)
Supplementary material 1 (DOCX 353 kb)

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Copyright information

© Association of Microbiologists of India 2019

Authors and Affiliations

  1. 1.Department of Chemical EngineeringKonkuk UniversitySeoulRepublic of Korea

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