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US 8,945,478 B2Granted
Microfabricated devices with coated or modified surface and method of making same
AssigneeP2i Ltd.
InventorStephen Coulson
Life of this patent
Estimating the term…
Abstract
A microfabricated device or component thereof, such as microfluidics or nanofluidics device having a uniform non-wetting or non-absorbing polymeric coating or surface modification formed on a surface thereof by ionization or activation technology such as plasma processing, to produce a surface energy of less than 15 mNm−1. The treatment enhances the free-flowing properties of a liquid through the device during use.
Claims20
A microfluidic device comprising:
- at least one chamber or tunnel or channel for the containment or flow of at least one fluid, said chamber or tunnel or channel having at least one dimension less than 1 mm and said chamber or tunnel or channel defining one or more surfaces for the containment or flow of the fluid, wherein the entire surfaces of the microfluidic device which, in use, would come into contact with the fluid are provided with a uniform non-wetting or non-absorbing polymeric coating or surface modification formed by plasma processing, and wherein the entire surfaces of the microfluidic device which, in use, would come into contact with the fluid have a surface energy value of less than 15 mNm−1.
Dependencies are inferred from the claim text.