BIOMIMETIC SYNTHESIS AND ANTIBACTERIAL PROPERTIES OF STRONTIUM OXIDE NANOPARTICLES USING OCIMUM SANCTUM LEAF EXTRACT
DOI:
https://doi.org/10.22159/ajpcr.2018.v11i3.20858Keywords:
Strontium oxide nanoparticles, Microwave irradiation, Antibacterial activity, Photoluminescence spectra, Reducing agent, BandgapAbstract
 Objective: The investigation and synthesis of nanoparticles using green chemical methods is an emerging field due to ecologically derived materials. In the present study, the reaction under microwave irradiation technique is proposed for synthesizing the strontium oxide nanoparticles (SrO NPs) by reacting the strontium nitrate powder with Ocimum sanctum L. leaf extract followed by heat treatment at 500oC for 2 h.
Methods: The crystalline nature, size, and morphological structure of the SrO powder sample were characterized by techniques such as powder X-ray diffraction (PXRD), scanning electron microscopy, ultraviolet (UV)-Vis spectroscopy, Fourier-transform infrared spectroscopy (FTIR) and photoluminescence (PL) spectral analysis. To investigate the antibacterial properties of SrO NPs, pathogens such as Escherichia coli, Staphylococcus aureus, Pseudomonas aeruginosa, Proteus vulgaris, Klebsiella pneumonia, and Morganella morganii was tested in Mueller–Hinton disc diffusion method.
Results: The particle size of the SrO NPs is calculated to be 42 nm using Debye–Scherrer equation. The SrO NPs exhibited absorption peak in the range of 250–350 nm centered at 274 nm in UV region. In addition, it is demonstrated that band gap energy was calculated to be 5.39 eV from Tauc's plot. The SrO NPs has shown the efficient antibacterial effect by inhibiting zone against Gram-negative bacteria.
Conclusion: The main aim of the study is to synthesize cost-effective and eco-friendly green synthesis of SrO NPs from the OS (O. sanctum) leaf extract and their characterization. The mechanism for the formation of SrO NPs in the presence of eugenol as reducing agent is also discussed. The present green chemical approach using plant-based materials for the synthesis of nanoparticles enhances the eco-friendliness, compatibility, effectiveness, and reduces the toxicity.
Downloads
References
George PP, Pol VG, Gedanken A. Synthesis and characterization of Nb2O5@C core-shell nanorods and Nb2O5 nanorods by reacting Nb(OEt)5 via RAPET (reaction under autogenic pressure at elevated temperatures) technique. Nanoscale Res Lett 2007;2:17-23.
George PP, Pol VG, Gedanken A, Gabashivili A, Cai M, Mance AM, et al. Selective coating of anatase and rutile TiO2 on carbon via ultrasound irradiation: Mitigating fuel cell catalyst degradation. J Fuel Cell Sci Tech 2008;5:41012-20.
George PP, Pol VG, Koltypin Y, Shirly Ben-David MS, Genish I, Gedanken A. Chemical reactions under autogenic pressure at elevated temperature to fabricate photo-luminescent Ga2O3 nanocrystals and their coatings. RSC Adv 2011;1:619-24.
George PP, Gedanken A. Ta2O5 nanobars and their composites: Synthesis and characterization. J Nanosci Tech 2008;8:5801-6.
George PP, Gedanken A. Synthesis, characterization, and photoluminescence properties of In2O3 nanocrystals encapsulated by carbon vesicles and neat In2O3 nanocrystals generated by the RAPET technique. Eur J Inorg Chem 2008;6:919-24.
George PP, Gedanken A, Perkas N, Zhong Z. Selective oxidation of CO in the presence of air over gold-based catalysts Au/TiO2/C (sonochemistry) and Au/TiO2/C (microwave). Ultrason Sonochem 2008;15:539-47.
Laurent C, Peigney A, Quenard O, Rousset A. Synthesis and characterization of alumina matrix nanocomposites containing carbon nanotubes. Key Eng Mater 1997;132:157-60.
Schmid HK, Aslan M, Assmann S, Nab R, Schmidt H. Microstructural characterization of Al2O3-SiC nan composites. Eur Ceram Soc1988;18:39-49.
Yang Y, Chen H, Zhao B, BaO X. Size control of ZnO nanoparticles via thermal decomposition of zinc acetate coated on organic additives. J Crystal Growth 2004;263:447-53.
Prasad KR, Miura N. Electrochemical synthesis and characterization of nanostructured tin oxide for electrochemical redox supercapacitors. Electrochem Commun 2004;6:849-52.
Athar T. Synthesis and characterization of strontium oxide nanoparticles via wet process. Mater Focus 2013;2:450-3.
Nemade KR, Waghuley SA. UV–VIS spectroscopic study of one-pot synthesized strontium oxide quantum dots. Results in Phy 2013;3:52-4.
Yuvasravana R, George PP, Devanna N. Synthesis and characterization of spinel metal aluminate by a simple microwave assisted green synthesis. Mater Today Proc 2017;4:10664-71.
Apsana G, George PP, Devanna N, Yuvasravana R. Enhanced morphology and efficient one-pot microwave Green synthesis of Ag3PO4 nanocubes and their optical and photocatalytic properties. J Bionanosci 2017;11:1-7.
Sridevi A, Sandhya A, Devi PS. Characterization and antibacterial studies of leaf assisted silver nanoparticles from Carica papaya: A green synthetic approach. Int J Pharm Pharm Sci 2015;7:143-6.
Bavani L, Inbakandan D, Renuka Devi J. In vivo toxicity studies of biosynthesized silver nanoparticles using Brassica oleraceae in zebra fish model. Int J Pharm Pharm Sci 2015;7:425-30.
Mayuri M, Rahul RD, Vishwas P, Snehal S, Nirmala RD, Rasika T. Comparative evaluation of antibacterial properties of different extracts of Mimusops elengi (bakul) and Ehretia laevis (ajaan) against salivary microflora. Asian J Pharm Clin Res 2015;8:217-9.
Elizabath A, Mythili S, Sathiavelu A. Synthesis of silver nanoparticles from the medicinal plant Bauhinia acuminata and Biophytum sensitivum–a comparative study of its biological activities with plant extract. Int J Appl Pharm 2017;9:22-9.
Kamath KK, Shabaraya AR. Comparison of antibacterial activity of leaves extracts of Tectona grandis, Mangifera indica, and Anacardium occidentale. Int J Curr Pharm Res 2017;9:36-9.
Kathirvel P. Chemical composition of essential oil of Ocimum basilicum L. (Basil) and its biological activities–an overview. J Crit Rev 2016;3:56-62.
Das SK, Vasudevan DM. Tulsi: The Indian holy plant. Nat Prod Radiance 2006;5:279-83.
Bindhani BK, Panigrahi AK. Biosynthesis and characterization of silver nanoparticles (SNPs) by using Leaf extracts of Ocimum sanctum L (Tulsi) and study of its antibacterial activities. Nanomed Nanotechnol 2015;S6:008.
Apsana G, George PP, Devanna N. Green synthesis and thermo, optical properties of M2P2O7 [M= Ca and Co] nanoparticles. Int J Pharm Bio Sci 2017;8:148-59.
Yuvasravana R, George PP. A green protocol for synthesis of MAl2O4, [M= Cu and Co] spinels under microwave irradiation method. Int J Nanosci 2016;15:1650033.
Yuvasravana R, George PP, Devanna N. Biosynthesis of MO- MCo2O4 [M=Zn and Cu] Composites from peel extract of pomegranate fruits –Punica granatumâ€. Int J Innov Res Sci Eng Tech 2017;6:5516-24.
Granados-Correa F, Bonifacio-Martinez J. Combustion synthesis process for the rapid preparation of high-purity SrO powders. Mater Sci Poland 2014;32:682-7.
Alavi MA, Morsali A. Syntheses and characterization of Sr(OH)2 and SrCO3 nanostructures by ultrasonic method. Ultrasonics Sonochem 2010;17:132-8.
Wang X, Song J, Gao L, Jin J, Zheng H, Zhang Z. Optical and electrochemical properties of nanosized NiO via thermal decomposition of nickel oxalate nanofibres. Nanotechnology 2005;16:37-9.
Lin Y, Yang Z, Cheng J, Wang L. Synthesis, characterization and antibacterial property of strontium half and totally substituted hydroxyapatite nanoparticles. J Wuhan Univ Tech Mater Sci Edu 2008;23:475-9.
Ravi ND, Balu R, Kumar TS. Strontium substituted calcium deficient hydroxyapatite nanoparticles: Synthesis, characterization and antibacterial properties. J Am Ceram Soc 2012;95:2700-8.
Pal A, Pehkonen SO, Yu LE, Ray MB. Photocatalytic inactivation of gram positive and gram negative bacteria using fluorescent light. J Photochem Photobiol Chem 2007;186:335-41.
Mulvaney P. Surface plasmon spectroscopy of nanosized metal particles. Langmuir 1996;12:788-800.
Published
How to Cite
Issue
Section
The publication is licensed under CC By and is open access. Copyright is with author and allowed to retain publishing rights without restrictions.
