Microfluidic device with various surface properties fabricated in multilayer body by plasma etching
First Claim
1. A microfluidic device comprising:
- a multilayer body comprising at least one first polymer layer, said at least one first polymer layer comprising at least one micro-structure for performing analysis using electrochemical fluid properties, said micro-structure having a hydrophobic surface portion and a hydrophilic surface portion.
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Abstract
The technology is based on the plasma etching of organic polymer sheets partially protected by a metallic mask. The originality of the process is to pattern the surface properties by the same physical means as the one used for the three dimensional fabrication and simultaneously to this fabrication. Surface properties mean, but are not limited to hydrophobicity hydrophilicity, conductivity, reflectability, rugosity and more precisely the chemical and/or physical state of the surface. It is also possible to generate the desired fonctionalities, for instance carboxylic acid, ester, ether, amid or imide, during the etching process. The patterning of the different properties may be achieved by two different techniques that may be used separately or simultaneously.
37 Citations
49 Claims
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1. A microfluidic device comprising:
a multilayer body comprising at least one first polymer layer, said at least one first polymer layer comprising at least one micro-structure for performing analysis using electrochemical fluid properties, said micro-structure having a hydrophobic surface portion and a hydrophilic surface portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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36. A microfluidic device, comprising:
a multilayer body comprising at least one polymer layer coated with at least one protective layer having a recess, said polymer layer having a micro-structure at said recess, a wall of said micro-structure having a hydrophobic surface portion and a hydrophilic surface portion. - View Dependent Claims (37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48)
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49. A microfluidic device, comprising:
a plurality of polymer layers comprising a first polymer layer with hydrophilic surface properties and a second polymer layer with hydrophobic surface properties, said plurality of polymer layer having at least one micro-structure for performing analysis using electrochemical fluid properties.
Specification