Ag@Ag8W4O16 nanoroasted rice beads with photocatalytic, antibacterial and anticancer activity

Muthamizh Selvamani; Giribabu Krishnamoorthy; Manigandan Ramadoss; Praveen Kumar Sivakumar; Munusamy Settu; Suresh Ranganathan; Narayanan Vengidusamy

doi:10.1016/j.msec.2015.11.002

Ag@Ag8W4O16 nanoroasted rice beads with photocatalytic, antibacterial and anticancer activity

Mater Sci Eng C Mater Biol Appl. 2016 Mar:60:109-118. doi: 10.1016/j.msec.2015.11.002. Epub 2015 Nov 4.

Authors

Muthamizh Selvamani¹, Giribabu Krishnamoorthy¹, Manigandan Ramadoss¹, Praveen Kumar Sivakumar¹, Munusamy Settu¹, Suresh Ranganathan², Narayanan Vengidusamy³

Affiliations

¹ Department of Inorganic Chemistry, University of Madras, Guindy Campus, Chennai, 600 025, India.
² Department of Chemistry, SRM University, Ramapuram Campus, Chennai, 600 089, India.
³ Department of Inorganic Chemistry, University of Madras, Guindy Campus, Chennai, 600 025, India. Electronic address: vnnara@yahoo.co.in.

PMID: 26706513
DOI: 10.1016/j.msec.2015.11.002

Abstract

Increasing resistance of pathogens and cancer cell line towards antibiotics and anticancer agents has caused serious health problems in the past decades. Due to these problems in recent years, researchers have tried to combine nanotechnology with material science to have intrinsic antimicrobial and anticancer activity. The metals and metal oxides were investigated with respect to their antimicrobial and anticancer effects towards bacteria and cancer cell line. In the present work metal@metal tungstate (Ag@Ag8W4O16 nanoroasted rice beads) is investigated for antibacterial activity against Escherichia coli and Staphylococcus aureus using Mueller-Hinton broth and the anticancer activity against B16F10 cell line was studied. Silver decorated silver tungstate (Ag@Ag8W4O16) was synthesized by the microwave irradiation method using Cetyl Trimethyl Ammonium Bromide (CTAB). Ag@Ag8W4O16 was characterized by using various spectroscopic techniques. The phase and crystalline nature were analyzed by using XRD. The morphological analysis was carried out using Field Emission Scanning Electron Microscopy (FE-SEM), and High Resolution Transmission Electron Microscopy (HR-TEM). Further, Fourier Transform Infrared Spectroscopy (FT-IR) and Raman spectral analysis were carried out in order to ascertain the presence of functional groups in Ag@Ag8W4O16. The optical property was investigated using Diffuse Reflectance Ultraviolet-Visible Spectroscopy (DRS-UV-Vis) and the band gap was found to be 3.08eV. Surface area of the synthesized Ag@Ag8W4O16 wasanalyzed by BET analysis and Ag@Ag8W4O16 was utilized for the degradation of organic dyes methylene blue and rhodamine B. The morphology of the Ag@Ag8W4O16 resembles roasted rice beads with breath and length in nm range. The oxidation state of tungsten (W) and silver (Ag) was investigated using X-ray photoelectron spectroscopy (XPS).

Keywords: Antibacterial; Anticancer; Methylene blue; Nanoroasted rice beads; Photocatalyst; Rhodamine B.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Animals
Anti-Bacterial Agents / chemistry*
Anti-Bacterial Agents / pharmacology
Cell Line, Tumor
Escherichia coli / drug effects
Metal Nanoparticles / chemistry*
Mice
Nanotechnology / methods*
Oryza*
Silver / chemistry*
Silver / pharmacology
Staphylococcus aureus / drug effects

Substances

Anti-Bacterial Agents
Silver