Synthesis of silver nanoparticles using medicinal Zizyphus xylopyrus bark extract
| Autor: | Vidya Shetty Kodialbail, Aishwarya Devadiga, Babu Sumi Maria, M. B. Saidutta |
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| Rok vydání: | 2014 |
| Předmět: |
Materials science
Materials Science (miscellaneous) Sonication Inorganic chemistry Nanoparticle Nanochemistry Cell Biology Atomic and Molecular Physics and Optics Silver nanoparticle Silver nitrate chemistry.chemical_compound chemistry visual_art Drug delivery visual_art.visual_art_medium Bark Electrical and Electronic Engineering Physical and Theoretical Chemistry Surface plasmon resonance Biotechnology Nuclear chemistry |
| Zdroj: | Applied Nanoscience. 5:755-762 |
| ISSN: | 2190-5517 2190-5509 |
| Popis: | In the present paper, biosynthesis of silver nanoparticles using Zizyphus xylopyrus bark extract is reported. Z. xylopyrus bark extract is efficiently used for the biosynthesis of silver nanoparticles. UV-Visible spec- troscopy showed surface plasmon resonance peaks in the range 413-420 nm confirming the formation of silver nanoparticles. Different factors affecting the synthesis of silver nanoparticles like methodology for the preparation of extract, concentration of silver nitrate solution used for biosynthesis and initial pH of the reaction mixture were studied. The extract prepared with 10 mM AgNO3 solution by reflux extraction method at optimum initial pH of 11, resulted in higher conversion of silver ions to silver nanoparticles as compared with those prepared by open heating or ultrasonication. SEM analysis showed that the biosynthesized nanoparticles are spherical in nature and ranged from 60 to 70 nm in size. EDX suggested that the silver nanoparticles must be capped by the organic com- ponents present in the plant extract. This simple process for the biosynthesis of silver nanoparticles using aqueous extract of Z. xylopyrus is a green technology without the usage of hazardous and toxic solvents and chemicals and hence is environment friendly. The process has several advantages with reference to cost, compatibility for its application in medical and drug delivery, as well as for large-scale commercial production. |
| Databáze: | OpenAIRE |
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