Metallic nanoparticles augmented the antibacterial potency of Rhodomyrtus tomentosa acetone extract against Escherichia coli

Shiv Shankar; Sukanlaya Leejae; Lily Jaiswal; Supayang Piyawan Voravuthikunchai

doi:10.1016/j.micpath.2017.03.036

Metallic nanoparticles augmented the antibacterial potency of Rhodomyrtus tomentosa acetone extract against Escherichia coli

Microb Pathog. 2017 Jun:107:181-184. doi: 10.1016/j.micpath.2017.03.036. Epub 2017 Mar 30.

Authors

Shiv Shankar¹, Sukanlaya Leejae², Lily Jaiswal³, Supayang Piyawan Voravuthikunchai⁴

Affiliations

¹ Department of Microbiology, Faculty of Science and Natural Product Research Centre of Excellence, Prince of Songkla University, Hat Yai, 90112, Thailand; Department of Food Engineering and Bionanocomposite Research Institute, Mokpo National University, 61 Dorimri, Chungkyemyon, Muangun, 534-729, Jeonnam, Republic of Korea. Electronic address: shivbiotech@gmail.com.
² Department of Microbiology, Faculty of Science and Natural Product Research Centre of Excellence, Prince of Songkla University, Hat Yai, 90112, Thailand.
³ Molecular Recognition Materials Research Unit, Faculty of Pharmaceutical Sciences, Prince of Songkla University, Hat Yai, Songkhla, 90112, Thailand.
⁴ Department of Microbiology, Faculty of Science and Natural Product Research Centre of Excellence, Prince of Songkla University, Hat Yai, 90112, Thailand. Electronic address: supayang.v@psu.ac.th.

PMID: 28365322
DOI: 10.1016/j.micpath.2017.03.036

Abstract

The present study was focused on the preparation of gold, silver, and gold-silver-alloy nanoparticles using Rhodomyrtus tomentosa acetone extract (RAE). The synthesized nanoparticles showed the surface plasmon resonance absorption peak corresponding to gold and silver nanoparticle. However, Au-Ag-Alloy nanoparticles showed the single peak between the peaks of AuNPs and AgNPs. TEM observation ascertained the shape and size of nanoparticles. FTIR results indicated the involvement of RAE for the synthesis and capping of nanoparticles. Study on antibacterial activity demonstrated the enhanced activity of RAE capped on silver and Au-Ag-Alloy nanoparticles against Escherichia coli.

Keywords: Antibacterial; Escherichia coli; Nanoparticle; Rhodomyrtus tomentosa.

MeSH terms

Acetone / chemistry*
Anti-Bacterial Agents / chemistry*
Anti-Bacterial Agents / pharmacology
Drug Combinations
Drug Synergism
Escherichia coli / drug effects*
Gold / chemistry
Metal Nanoparticles / administration & dosage
Metal Nanoparticles / chemistry*
Metal Nanoparticles / ultrastructure
Microbial Sensitivity Tests
Microscopy, Electron, Transmission
Particle Size
Plant Extracts / administration & dosage
Plant Extracts / pharmacology*
Silver / chemistry
Spectrophotometry, Ultraviolet
Spectroscopy, Fourier Transform Infrared
Tracheophyta / chemistry*

Substances

Anti-Bacterial Agents
Drug Combinations
Plant Extracts
Acetone
Silver
Gold