Synthesis of silver nanoparticles using a biosurfactant produced in low-cost medium as stabilizing agent

Background A biosurfactant produced by Pseudomonas aeruginosa cultivated in a low-cost medium formulated with 2.5% vegetable oil refinery residue and 2.5% corn steep liquor and distilled water was employed to stabilize silver nanoparticles in the liquid phase. The particles were initially synthesize...

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Autores principales:	Farias,Charles B.B., Ferreira Silva,Aline, Diniz Rufino,Raquel, Moura Luna,Juliana, Gomes Souza,José Edson, Sarubbo,Leonie Asfora
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Valparaíso 2014
Materias:	Microbial surfactant Nanoscale materials Pseudomonas aeruginosa
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582014000300003
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spelling	oai:scielo:S0717-345820140003000032014-08-18Synthesis of silver nanoparticles using a biosurfactant produced in low-cost medium as stabilizing agentFarias,Charles B.B.Ferreira Silva,AlineDiniz Rufino,RaquelMoura Luna,JulianaGomes Souza,José EdsonSarubbo,Leonie Asfora Microbial surfactant Nanoscale materials Pseudomonas aeruginosa Background A biosurfactant produced by Pseudomonas aeruginosa cultivated in a low-cost medium formulated with 2.5% vegetable oil refinery residue and 2.5% corn steep liquor and distilled water was employed to stabilize silver nanoparticles in the liquid phase. The particles were initially synthesized using NaBH4 as reducing agent in biosurfactant reverse micelles and were extracted from the micellar solution to disperse in heptane. Results A silver particle size in the range of 1.13 nm was observed. The UV-vis absorption spectra proposed that silver nanoparticles could be formed in the reverse micelles and relatively stabilized for at least 3 months without passivator addition. The Transmission Electron Microscope (TEM) shows that the silver nanoparticles are of spherical form and relatively uniform. Conclusions This process provided a simpler route for nanoparticle synthesis compared to existing systems using whole organisms or partially purified biological extracts, showing that the low-cost biosurfactant can be used for nanoparticle synthesis as a non-toxic and biodegradable stabilizing agent.info:eu-repo/semantics/openAccessPontificia Universidad Católica de ValparaísoElectronic Journal of Biotechnology v.17 n.3 20142014-05-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582014000300003en10.1016/j.ejbt.2014.04.003
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Microbial surfactant Nanoscale materials Pseudomonas aeruginosa
spellingShingle	Microbial surfactant Nanoscale materials Pseudomonas aeruginosa Farias,Charles B.B. Ferreira Silva,Aline Diniz Rufino,Raquel Moura Luna,Juliana Gomes Souza,José Edson Sarubbo,Leonie Asfora Synthesis of silver nanoparticles using a biosurfactant produced in low-cost medium as stabilizing agent
description	Background A biosurfactant produced by Pseudomonas aeruginosa cultivated in a low-cost medium formulated with 2.5% vegetable oil refinery residue and 2.5% corn steep liquor and distilled water was employed to stabilize silver nanoparticles in the liquid phase. The particles were initially synthesized using NaBH4 as reducing agent in biosurfactant reverse micelles and were extracted from the micellar solution to disperse in heptane. Results A silver particle size in the range of 1.13 nm was observed. The UV-vis absorption spectra proposed that silver nanoparticles could be formed in the reverse micelles and relatively stabilized for at least 3 months without passivator addition. The Transmission Electron Microscope (TEM) shows that the silver nanoparticles are of spherical form and relatively uniform. Conclusions This process provided a simpler route for nanoparticle synthesis compared to existing systems using whole organisms or partially purified biological extracts, showing that the low-cost biosurfactant can be used for nanoparticle synthesis as a non-toxic and biodegradable stabilizing agent.
author	Farias,Charles B.B. Ferreira Silva,Aline Diniz Rufino,Raquel Moura Luna,Juliana Gomes Souza,José Edson Sarubbo,Leonie Asfora
author_facet	Farias,Charles B.B. Ferreira Silva,Aline Diniz Rufino,Raquel Moura Luna,Juliana Gomes Souza,José Edson Sarubbo,Leonie Asfora
author_sort	Farias,Charles B.B.
title	Synthesis of silver nanoparticles using a biosurfactant produced in low-cost medium as stabilizing agent
title_short	Synthesis of silver nanoparticles using a biosurfactant produced in low-cost medium as stabilizing agent
title_full	Synthesis of silver nanoparticles using a biosurfactant produced in low-cost medium as stabilizing agent
title_fullStr	Synthesis of silver nanoparticles using a biosurfactant produced in low-cost medium as stabilizing agent
title_full_unstemmed	Synthesis of silver nanoparticles using a biosurfactant produced in low-cost medium as stabilizing agent
title_sort	synthesis of silver nanoparticles using a biosurfactant produced in low-cost medium as stabilizing agent
publisher	Pontificia Universidad Católica de Valparaíso
publishDate	2014
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582014000300003
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Synthesis of silver nanoparticles using a biosurfactant produced in low-cost medium as stabilizing agent

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