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US 8,076,125 B2Granted
Imagewise patterning of films and devices comprising the same
AssigneeWorcester Polytechnic Institute
InventorW. Grant McGimpsey
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Abstract
The present invention is directed, at least in part, to methods for imagewise patterning of a surface. Such patterned surfaces can be used, e.g., in microfluidic devices. Accordingly, the present invention is also directed, at least in part, to nanopatterned devices which include a microchannel structure and methods for forming such devices.
Claims12
A method for imagewise patterning of a surface comprising:
- (a) forming a first substantially monolayer thick film on at least a portion of the surface, the first substantially monolayer thick film comprising a photo-labile molecule responsive to a first wavelength of light;
- (b) imagewise exposing at least a portion of the first substantially monolayer thick film to the first wavelength of light, such that a first irradiated portion is formed;
- (c) contacting at least a portion of the first irradiated portion with a first metal ion, such that a first metallic layer is formed;
- (d) forming a second substantially monolayer thick film on at least a portion of the first metallic layer, the second substantially monolayer thick film comprising a photo-labile molecule responsive to a second wavelength of light;
- (e) imagewise exposing at least a portion of one or more of the first and second substantially monolayer thick films with the second wavelength of light, such that a second irradiated portion is formed;
- (f) contacting at least a portion of the second irradiated portion with a second metal ion, such that a second metallic layer is formed;
- and
- (g) forming a cap layer on at least a portion of the second metallic layer by contacting at least a portion of the second metallic layer with a compound selected from the group consisting of:
- a photovoltaic molecule, a photochromic molecule, an analyte sensing molecule, and a capping molecule, wherein steps (d), (e), and (f) are repeated one or more times prior to step (g).
6 more elements
Dependencies are inferred from the claim text.