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Photoembossing for Surface Texturing of Films and Fibres forBiomedical Applications

Published online by Cambridge University Press:  03 February 2012

Nanayaa Freda Hughes-Brittain ,
Olivier T. Picot ,
Lin Qiu ,
Carlos Sanchez ,
Ton Peijs  and
Kees Bastiaansen
Nanayaa Freda Hughes-Brittain
Affiliation:
School of Engineering and Material Science. Centre for Material Research, Queen Mary University of London, London, United Kingdom
Olivier T. Picot
Affiliation:
School of Engineering and Material Science. Centre for Material Research, Queen Mary University of London, London, United Kingdom
Lin Qiu
Affiliation:
School of Engineering and Material Science. Centre for Material Research, Queen Mary University of London, London, United Kingdom
Carlos Sanchez
Affiliation:
Departmento de Fisica de la Materia Condensada. Faculta de Ciencias, Universidad de Zaragoza, Zaragoza, Spain
Ton Peijs
Affiliation:
School of Engineering and Material Science. Centre for Material Research, Queen Mary University of London, London, United Kingdom Faculty of Chemistry and Chemical Engineering, Eindhoven University, Eindhoven, Netherlands.
Kees Bastiaansen
Affiliation:
School of Engineering and Material Science. Centre for Material Research, Queen Mary University of London, London, United Kingdom Faculty of Chemistry and Chemical Engineering, Eindhoven University, Eindhoven, Netherlands.
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Abstract

Photoembossing is a technique used to create relief structures using apatterned contact photo-mask exposure and a thermal development step.Typically, the photopolymer consists of a polymer binder and a monomer in a1/1 ratio together with a photo-initiator which results in a solid andnon-tacky material at room temperature. Here, new mixtures forphotoembossing are presented which are potentially biocompatible. A polymerbinder such as poly (methyl methacrylate) with triacrylate monomer andbiocompatible photo-initiator Irgacure 369 is used. Photopolymer filmsproduced are successfully embossed with height of relief structurescontrolled by UV dosage and developing temperature. Furthermore, thephotopolymer blend is electrospun to form fibres with diameters of 5 μmwhich are then photoembossed. The photoembossed fibres showed homogenousreproducible surface textures. Biocompatibility is evaluated by culturinghuman umbilical vein endothelial cells (HUVECs) on films of thisphotopolymer blend. The study shows that photoembossing is a feasible methodof producing surface texturing on both films and electrospun fibres fortissue engineering applications.

Keywords

polymertexturefiber

Information

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1418: Symposium LL/MM – Gels and Biomedical Materials , 2012 , mrsf11-1418-mm02-08
Copyright
Copyright © Materials Research Society 2012

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References

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