Fabrication of enclosed nanochannels using silica nanoparticles
First Claim
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1. A method of forming a nanochannel comprising:
- depositing a photosensitive film stack over a substrate;
forming a first pattern on the film stack using interferometric lithography to form a nanochannel;
forming a second pattern on the film stack using interferometric lithography and a mask aligner to form a barrier in the nanochannel;
depositing a plurality of silica nanoparticles to form a structure over the first pattern and the second pattern; and
removing the first pattern and the second pattern while retaining the structure formed by the plurality of silica nanoparticles, wherein the structure comprises an enclosed nanochannel with the barrier formed along a portion of the enclosed nanochannel.
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Abstract
In accordance with the invention, there is a method of forming a nanochannel including depositing a photosensitive film stack over a substrate and forming a pattern on the film stack using interferometric lithography. The method can further include depositing a plurality of silica nanoparticles to form a structure over the pattern and removing the pattern while retaining the structure formed by the plurality of silica nanoparticles, wherein the structure comprises an enclosed nanochannel.
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Citations
16 Claims
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1. A method of forming a nanochannel comprising:
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depositing a photosensitive film stack over a substrate; forming a first pattern on the film stack using interferometric lithography to form a nanochannel; forming a second pattern on the film stack using interferometric lithography and a mask aligner to form a barrier in the nanochannel; depositing a plurality of silica nanoparticles to form a structure over the first pattern and the second pattern; and removing the first pattern and the second pattern while retaining the structure formed by the plurality of silica nanoparticles, wherein the structure comprises an enclosed nanochannel with the barrier formed along a portion of the enclosed nanochannel. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A nanochannel device for selectively separating components of a fluid comprising:
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a first plurality of nanochannels, wherein each nanochannel comprises a first opening and a second opening of the first plurality of nanochannels; a second plurality of nanochannels, wherein each nanochannel comprises a first opening and a second opening of the second plurality of nanochannels; and a barrier positioned between the first plurality of nanochannels and the second plurality of nanochannels, wherein the barrier comprises a plurality of silica nanoparticles, wherein a space between adjacent silica nanoparticles functions as a pore to allow fluid to flow between the first plurality of nanochannels and the second plurality of nanochannels. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification