Title of article :
Microwave‑assisted synthesis of silver nanoparticles and their application in catalytic, antibacterial and antioxidant activities
Author/Authors :
Seku, Kondaiah Department of Chemistry - Shinas College of Technology - Shinas, Sultanate of Oman , Reddy Gangapuram, Bhagavanth Department of Chemistry - Palamuru University - Mahbubnagar - Telangana, India , Pejjai, Babu School of Chemical Engineering - Yeungnam University - Gyeongsam, Republic of Korea , Kumar Kadimpati, Kishore Department of Pharmaceutics - Narayana Pharmacy College - Nellore - Andhra Pradesh, India , Golla, Narasimha Department of Engineering (Applied Science‑Chemistry) - Shinas College of Technology - Shinas, Sultanate of Oman
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 NaBH4
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.
Keywords :
Microwave irradiation , Silver nanoparticles , Antibacterial , Antioxidant , Catalytic activities
Journal title :
Astroparticle Physics
