Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/12937
Título: | Improvement of electrospun polymer fiber meshes pore size by femtosecond laser irradiation |
Autor(es): | Rebollar, Esther Cordero, Diego Martins, Albino Chiussi, Stefano Reis, R. L. Neves, N. M. Leon, Bétty |
Palavras-chave: | Pore size Femtosecond laser Fiber mesh Electrospinning Laser ablation |
Data: | 15-Fev-2011 |
Editora: | Elsevier 1 |
Revista: | Applied Surface Science |
Resumo(s): | Polymer meshes have recently attracted great attention due to their great variety of aplications in fields such as tissue engineering and drug delivery. Poly( -caprolactone) nanofibers were prepared by electrospinning giving rise to porous meshes. However, for some applications in tissue engineering where, for instance, cell migration into the inner regions of the mesh is aimed, the pore size obtained by conventional techniques is too narrow. To improve the pore size, laser irradiation with femtosecond pulses (i.e., negligible heat diffusion into the polymer material and confined excitation energy) is performed. A detailed study of the influence of the pulse energy, pulse length, and number of pulses on the topography of electrospun fiber meshes has been carried out, and the irradiated areas have been studied by scanning electron microscopy, contact angle measurements and spectroscopic techniques. The results show that using the optimal laser parameters, micropores are formed and the nature of the fibers is preserved. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/12937 |
DOI: | 10.1016/j.apsusc.2010.12.002 |
ISSN: | 0169-4332 |
Versão da editora: | http://www.sciencedirect.com/science/article/pii/S016943321001723X |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | 3B’s - Artigos em revistas/Papers in scientific journals |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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Improvement of Electrospun Polymer Fiber Meshes Pore Size by Femtosecond Laser Irradiation - Rebollar E, ... León B..pdf | Rebollar_Applied Surface Science 2011 | 606,21 kB | Adobe PDF | Ver/Abrir |