Work

Microwave-assisted synthesis of silver nanoparticles and their application in catalytic, antibacterial and antioxidant activities

Year: 2018

Type: article

Abstract: Eco-friendly silver nanoparticles (AgNPs) were synthesized using a carboxymethylated gum kondagogu (CMGK) as capping and reducing agent by microwave irradiation method. Synthesized AgNPs were analyzed by TEM, showed spherical in shape with an average particle size distribution of 9 ± 2 nm. XRD results showed that the cubic-structured AgNPs with crystallite size of 8.6 nm. The synthesized CMGK capped AgNPs was tested for catalytic activity using hexacyanoferrate(III) in the presence of NaBH 4 and the impacts of catalyst dose and temperature were examined. The synthesized AgNPs demonstrated a huge antibacterial action on both Gram-positive and negative groups of microorganisms with inhibition zone of 23, 25 and 28 mm, respectively, for Bacillus subtilis , Bacillus cereus and Escherichia coli , they showed moderate antibacterial action (zone of inhibition 15 mm) with Pseudomonas aeruginosa. In addition, the ability of the AgNPs scavenging activity with different concentrations was studied using the DPPH radical scavenging.

Source: Journal of nanostructure in chemistry

DOI: 10.1007/s40097-018-0264-7

Authors: Kondaiah Seku, Bhagavanth Reddy Gangapuram, Babu Pejjai, Kishore Kumar Kadimpati, Narasimha Golla

Institutions: University of Technology and Applied Sciences - Shinas, Palamuru University, Yeungnam University

Language: English

Topic: Nanoparticles: synthesis and applications

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,690

Funder: University Grants Commission