Microwave-assisted synthesis of silver nanoparticles and their application in catalytic, antibacterial and antioxidant activities
| Autor: | Babu Pejjai, Narasimha Golla, Kishore Kumar Kadimpati, Bhagavanth Reddy Gangapuram, Kondaiah Seku |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Reducing agent
DPPH Bacillus cereus Nanochemistry 02 engineering and technology Bacillus subtilis 010402 general chemistry 01 natural sciences Silver nanoparticle Catalysis lcsh:Chemistry chemistry.chemical_compound Catalytic activities Microwave irradiation biology Chemistry 021001 nanoscience & nanotechnology biology.organism_classification 0104 chemical sciences Antibacterial lcsh:QD1-999 Particle size Silver nanoparticles Antioxidant 0210 nano-technology Nuclear chemistry |
| Zdroj: | Journal of Nanostructure in Chemistry, Vol 8, Iss 2, Pp 179-188 (2018) |
| ISSN: | 2193-8865 2008-9244 |
| DOI: | 10.1007/s40097-018-0264-7 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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