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Non-woven Membranes Electrospun from Polylactic Acid Incorporating Silver Nanoparticles as Biocide

Published online by Cambridge University Press:  19 March 2012

Haydee Vargas-Villagran ,
Elvia Teran-Salgado ,
Maraolina Dominguez-Diaz ,
Osvaldo Flores ,
Bernardo Campillo ,
Araceli Flores  and
Angel Romo-Uribe
Haydee Vargas-Villagran
Affiliation:
Laboratorio de Nanopolimeros y Coloides, Instituto de Ciencias Fisicas, Universidad Nacional Autonoma de Mexico, Cuernavaca, Mor. 62210, MEXICO.
Elvia Teran-Salgado
Affiliation:
Laboratorio de Nanopolimeros y Coloides, Instituto de Ciencias Fisicas, Universidad Nacional Autonoma de Mexico, Cuernavaca, Mor. 62210, MEXICO.
Maraolina Dominguez-Diaz
Affiliation:
Laboratorio de Nanopolimeros y Coloides, Instituto de Ciencias Fisicas, Universidad Nacional Autonoma de Mexico, Cuernavaca, Mor. 62210, MEXICO.
Osvaldo Flores
Affiliation:
Laboratorio de Nanopolimeros y Coloides, Instituto de Ciencias Fisicas, Universidad Nacional Autonoma de Mexico, Cuernavaca, Mor. 62210, MEXICO.
Bernardo Campillo
Affiliation:
Facultad de Quimica, Universidad Nacional Autonoma de Mexico, Cd. Universitaria, Mexico D.F. 04510, MEXICO.
Araceli Flores
Affiliation:
Instituto de Estructura de la Materia, C.S.I.C., Serrano 119, 28006 Madrid, SPAIN.
Angel Romo-Uribe*
Affiliation:
Laboratorio de Nanopolimeros y Coloides, Instituto de Ciencias Fisicas, Universidad Nacional Autonoma de Mexico, Cuernavaca, Mor. 62210, MEXICO.
*
*To whom correspondence should be addressed: aromo-uribe@fis.unam.mx
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Abstract

In this research, we describe the electrospinning processing of polylactic acid (PLA) and the influence of silver nanoparticles on the morphology and microstructure of produced non woven membranes thus produced. The PLA was electrospun from a chloroform solution and a filamentary and granular morphology was obtained, the filaments having an average diameter of 1.25 μm, When silver nanoparticles (of ca. 12 nm size) were incorporated, the filaments diameter was reduced to an average of 0.65 μm, and the density of beads was also reduced. The membranes were rather amorphous, as revealed by X-ray scattering, presumably due to the quenching process associated with the electrospinning process. Water contact angle measurements showed that silver nanoparticles induced significant hidrophobicity in the membranes as neat PLA membrane had a contact angle of 54° and PLA/Ag membrane exhibited an angle of 115°.

Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1376: Symposium S11 – Biomaterials for Medical Applications , 2012 , imrc11-1376-s11-p26
Copyright
Copyright © Materials Research Society 2012

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References

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