Journal of Biomaterials Science, Polymer Edition ¶ 2004-01-01

Laser surface modification of silicone rubber to reduce platelet adhesion in vitro.

M T Khorasani, H Mirzadeh

Index: J. Biomater. Sci. Polym. Ed. 15(1) , 59-72, (2004)

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Abstract

To improve the blood compatibility, the surface of polydimethylsiloxane (PDMS) films were irradiated using a CO2-pulsed laser. Acrylamide (AAm) was grafted onto a pre-irradiated surface. The AAm-grafted and laser-treated films were characterized using different techniques. Platelet adhesion and activation onto the AAm-grafted PDMS, laser-treated (ungrafted) and unmodified PDMS film surfaces were compared. Data from in vitro assays indicated that the platelet adhesion was reduced on the AAm-grafted PDMS and laser treated PDMS films in comparison with the unmodified PDMS. The laser-irradiated sample showed the minimum platelet adhesion. It seems that laser irradiation onto a silicone rubber surface is a versatile technique to produce anti-thrombogenic surface for biomaterial applications.

Related Compounds

  • Dicumyl peroxide

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