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Synthesis of silver nanoparticles using a biosurfactant produced in low-cost medium as stabilizing agent Electron. J. Biotechnol.
Farias,Charles B.B.; Ferreira Silva,Aline; Diniz Rufino,Raquel; Moura Luna,Juliana; Gomes Souza,José Edson; Sarubbo,Leonie Asfora.
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...
Tipo: Journal article Palavras-chave: Microbial surfactant; Nanoscale materials; Pseudomonas aeruginosa.
Ano: 2014 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582014000300003
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