Green synthesis of multi-shaped silver nanoparticles: optical, morphological and antibacterial properties
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The manuscript deals with the green synthesis of anisotropic silver nanoparticles (AgNPs). For synthesis, the maltose has been used as reducing and polyvinyl pyrrolidone (PVP) as capping agent and the reaction has been initiated using microwave heating. A strong SPR band at 427 nm and a tail around 590 nm in UV–Vis spectrum of AgNPs, and TEM imaging confirmed the synthesis of anisotropic nanoparticles (NPs). Microwave irradiation time, silver precursor concentration and capping agent concentration affected the particle size as well as particle size distribution. Antibacterial behaviour of anisotropic AgNPs was better than their spherical counterparts.
KeywordsSilver Nanoparticles Maltose Green Synthesis Screen Print Electrode AgNO3 Concentration
Authors acknowledge the financial support received from Council of Scientific and Industrial Research (CSIR), Government of India, New Delhi, for the network project ‘BIOCERAM’, Project No. ESC-0103.
- 9.M.I. Dar, A.K. Chandiran, M. Gratzel, M.K. Nazeeruddin, S.A. Shivashankar, Controlled synthesis of TiO2 nanoparticles and nanospheres using a microwave assisted approach for their application in dye-sensitized solar cells. J. Mater. Chem. A 2(6), 1662–1667 (2014). doi: 10.1039/C3TA14130F CrossRefGoogle Scholar
- 32.J.P.A. Šileikaite, I. Prosycevas, S. Tamulevicius, Investigation of silver nanoparticles formation kinetics during reduction of silver nitrate with sodium citrate. Mater. Sci. (MEDŽIAGOTYRA) 15(1), 21–27 (2009)Google Scholar
- 37.T.H.A.H. Fujiwara, Formation of rod shape secondary aggregation of copper nanoparticles in aqueous solution of sodium borohydride with stabilizing polymer. J. Phys. 61, 394–398 (2007)Google Scholar
- 39.O.S. Oluwafemi, Y. Lucwaba, A. Gura, M. Masabeya, V. Ncapayi, O.O. Olujimi, S.P. Songca, A facile completely ‘green’ size tunable synthesis of maltose-reduced silver nanoparticles without the use of any accelerator. Colloids Surf. B 102, 718–723 (2013). doi: 10.1016/j.colsurfb.2012.09.001 CrossRefGoogle Scholar