Gold nanoparticle / polymer nanofibrous composites by laser ablation and electrospinning

Date
2011
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Source Title
Materials Letters
Print ISSN
0167-577X
Electronic ISSN
Publisher
Elsevier BV
Volume
65
Issue
19-20
Pages
2941 - 2943
Language
English
Type
Article
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Abstract

Poly(vinylpyrolidone) (PVP) nanofibers incorporating gold nanoparticles (Au-NPs) were produced in combination with laser ablation and electrospinning techniques. The Au-NPs were directly synthesized in PVP solution by laser ablation and then, the electrospinning of PVP/Au-NPs solution was carried out for obtaining nanofibrous composites. The presence of Au-NPs in the PVP nanofibers was confirmed by SEM, TEM and EDX analyses. The SEM imaging elucidated that the electrospun PVP/Au-NPs nanofibers were bead-free having average fiber diameter of 810 ± 480 nm. The TEM imaging indicated that the Au-NPs were in spherical shape having diameters in the range of 5 to 20 nm and the Au-NPs were more or less dispersed homogeneously in the PVP nanofiber matrix. The FTIR study suggested the presence of molecular interactions between PVP matrix and the Au-NPs in the nanofibrous composites. The UV-Vis measurement confirmed the enhancement of the optical properties of the PVP/Au-NPs nanofibers in the solid state due to the surface plasma resonance effect of Au-NPs. © 2011 Elsevier B.V. All Rights Reserved.

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Keywords
Electrospinning, Laser ablation, Nanofibers, Gold nanoparticles, Nanocomposites, Polymeric composites
Citation
Published Version (Please cite this version)