Method for creating a cell growth surface on a polymeric substrate
First Claim
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1. An apparatus for treating a polymeric substrate surface comprising:
- a) a plasma mixing chamber having fluid communication with both a gas inlet and a microwave energy source;
b) a dual chambered treatment area having an inner treatment chamber contained within an outer treatment chamber, said inner treatment chamber having an opening in fluid communication with said outer chamber;
c) said plasma mixing chamber in fluid communication with said outer treatment chamber by means of an aperture;
d) a vacuum outlet line attached to said outer chamber; and
e) whereby said opening in said inner treatment chamber is aligned with said aperture and said conduit, said opening being spaced from said aperture a predetermined distance.
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Abstract
A method, apparatus and product for producing an advantaged cell growth surface. According to the present invention, a stream of plasma is comprised of activated gaseous species generated by a microwave source. This stream is directed at the surface of a polymer substrate in a controlled fashion such that the surface is imparted with attributes for cell adhesion far superior to that of untreated polymer or polymer treated by other known methods.
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17 Claims
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1. An apparatus for treating a polymeric substrate surface comprising:
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a) a plasma mixing chamber having fluid communication with both a gas inlet and a microwave energy source;
b) a dual chambered treatment area having an inner treatment chamber contained within an outer treatment chamber, said inner treatment chamber having an opening in fluid communication with said outer chamber;
c) said plasma mixing chamber in fluid communication with said outer treatment chamber by means of an aperture;
d) a vacuum outlet line attached to said outer chamber; and
e) whereby said opening in said inner treatment chamber is aligned with said aperture and said conduit, said opening being spaced from said aperture a predetermined distance. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 17)
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14. A polymer substrate having a working surface upon which cells can be cultured wherein the surface morphology has at least a 3 times increase when subjected to water where the surface morphology is determined by root mean square measurement.
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15. A polymer substrate having a working surface upon which cells can be cultured wherein the surface oxygen content is at least 20 percent as measured by electron microscopy for chemical analysis.
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16. The substrate of claim 16 wherein said polymer is polystyrene.
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