Controlled synthesis and characterization of hollow flower-like silver nanostructures

Kamel AM Eid, Hassan ME AzzazyNovel Diagnostics and Therapeutics Group, Yousef Jameel Science and Technology Research Center, School of Sciences and Engineering, The American University in Cairo, New Cairo, EgyptBackground: The synthesis of anisotropic silver nanoparticles is a time-consuming proces...

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Autores principales:	Eid KAM, Azzazy HME
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2012
Materias:	Medicine (General) R5-920
Acceso en línea:	https://doaj.org/article/58630d84bca24dc88598ae66aeab232f
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spelling	oai:doaj.org-article:58630d84bca24dc88598ae66aeab232f2021-12-02T00:12:17ZControlled synthesis and characterization of hollow flower-like silver nanostructures1176-91141178-2013https://doaj.org/article/58630d84bca24dc88598ae66aeab232f2012-03-01T00:00:00Zhttp://www.dovepress.com/controlled-synthesis-and-characterization-of-hollow-flower-like-silver-a9534https://doaj.org/toc/1176-9114https://doaj.org/toc/1178-2013Kamel AM Eid, Hassan ME AzzazyNovel Diagnostics and Therapeutics Group, Yousef Jameel Science and Technology Research Center, School of Sciences and Engineering, The American University in Cairo, New Cairo, EgyptBackground: The synthesis of anisotropic silver nanoparticles is a time-consuming process and involves the use of expensive toxic chemicals and specialized laboratory equipment. The presence of toxic chemicals in the prepared anisotropic silver nanostructures hindered their medical application. The authors have developed a fast and inexpensive method for the synthesis of three-dimensional hollow flower-like silver nanostructures without the use of toxic chemicals.Methods: In this method, silver nitrate was reduced using dextrose in presence of trisodium citrate as a capping agent. Sodium hydroxide was added to enhance reduction efficacy of dextrose and reduce time of synthesis. The effects of all four agents on the shape and size of silver nanostructures were investigated.Results: Robust hollow flower-like silver nanostructures were successfully synthesized and ranged in size from 0.2 &micro;m to 5.0 &micro;m with surface area between 25&ndash;240 m2/g. Changing the concentration of silver nitrate, dextrose, sodium hydroxide, and trisodium citrate affected the size and shape of the synthesized structures, while changing temperature had no effect.Conclusion: The proposed method is simple, safe, and allows controlled synthesis of anisotropic silver nanostructures, which may represent promising tools as effective antimicrobial agents and for in vitro diagnostics. The synthesized hollow nanostructures may be used for enhanced drug encapsulation and sustained release.Keywords: silver nanoparticles, 3D hollow, flower-like, green synthesisEid KAMAzzazy HMEDove Medical PressarticleMedicine (General)R5-920ENInternational Journal of Nanomedicine, Vol 2012, Iss default, Pp 1543-1550 (2012)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine (General) R5-920
spellingShingle	Medicine (General) R5-920 Eid KAM Azzazy HME Controlled synthesis and characterization of hollow flower-like silver nanostructures
description	Kamel AM Eid, Hassan ME AzzazyNovel Diagnostics and Therapeutics Group, Yousef Jameel Science and Technology Research Center, School of Sciences and Engineering, The American University in Cairo, New Cairo, EgyptBackground: The synthesis of anisotropic silver nanoparticles is a time-consuming process and involves the use of expensive toxic chemicals and specialized laboratory equipment. The presence of toxic chemicals in the prepared anisotropic silver nanostructures hindered their medical application. The authors have developed a fast and inexpensive method for the synthesis of three-dimensional hollow flower-like silver nanostructures without the use of toxic chemicals.Methods: In this method, silver nitrate was reduced using dextrose in presence of trisodium citrate as a capping agent. Sodium hydroxide was added to enhance reduction efficacy of dextrose and reduce time of synthesis. The effects of all four agents on the shape and size of silver nanostructures were investigated.Results: Robust hollow flower-like silver nanostructures were successfully synthesized and ranged in size from 0.2 &micro;m to 5.0 &micro;m with surface area between 25&ndash;240 m2/g. Changing the concentration of silver nitrate, dextrose, sodium hydroxide, and trisodium citrate affected the size and shape of the synthesized structures, while changing temperature had no effect.Conclusion: The proposed method is simple, safe, and allows controlled synthesis of anisotropic silver nanostructures, which may represent promising tools as effective antimicrobial agents and for in vitro diagnostics. The synthesized hollow nanostructures may be used for enhanced drug encapsulation and sustained release.Keywords: silver nanoparticles, 3D hollow, flower-like, green synthesis
format	article
author	Eid KAM Azzazy HME
author_facet	Eid KAM Azzazy HME
author_sort	Eid KAM
title	Controlled synthesis and characterization of hollow flower-like silver nanostructures
title_short	Controlled synthesis and characterization of hollow flower-like silver nanostructures
title_full	Controlled synthesis and characterization of hollow flower-like silver nanostructures
title_fullStr	Controlled synthesis and characterization of hollow flower-like silver nanostructures
title_full_unstemmed	Controlled synthesis and characterization of hollow flower-like silver nanostructures
title_sort	controlled synthesis and characterization of hollow flower-like silver nanostructures
publisher	Dove Medical Press
publishDate	2012
url	https://doaj.org/article/58630d84bca24dc88598ae66aeab232f
work_keys_str_mv	AT eidkam controlledsynthesisandcharacterizationofhollowflowerlikesilvernanostructures AT azzazyhme controlledsynthesisandcharacterizationofhollowflowerlikesilvernanostructures
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Controlled synthesis and characterization of hollow flower-like silver nanostructures

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