AVS 47th International Symposium
    Plasma Science and Technology Thursday Sessions
       Session PS1-ThA

Paper PS1-ThA7
Surface Chemical Patterning by Plasma Polymerization

Thursday, October 5, 2000, 4:00 pm, Room 310

Session: Plasma-Surface Interactions II
Presenter: R.D. Short, University of Sheffield, UK
Authors: R.D. Short, University of Sheffield, UK
N. Bullett, University of Sheffield, UK
A.J. Beck, University of Sheffield, UK
C. Blomfield, Kratos Analytical, UK
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Plasma polymerization has been used to create chemically-patterned surfaces. The fidelity of the patterns is demonstrated by means of imaging TOFSIMS and XPS. The sequential plasma deposition of a hydrocarbon compound (1,7 octadiene) and a functionalized compound (allyl amine or acrylic acid) through electron microscope grids has been used to create surface patterns of amine and carboxyl, respectively, on polymer sheets. By this approach it has been possible to fabricated surfaces containing stripes of 75-150 microns and squares, of similar dimensions, of amine and carboxyl functionalities. These patterns have been used to spatially control protein adsorption, demonstrated using a fluorescent marker, and cell attachment and spreading.