A method for producing a blood filter and a blood filter
AssigneesImec Vzw, Stichting IMEC Nederland
InventorsCian CUMMINS, Sandeep SEEMA SASEENDRAN, Aurelie HUMBERT, Fokko WIERINGA, Lucas LINDEBOOM, Geert LANGEREIS, Patrick VAN DEURSEN
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Abstract
A method for producing a blood filter, the blood filter being a filter for filtering blood, the method comprising providing a first layer; providing a block copolymer layer above the first layer; converting the block copolymer layer to a mask by selectively removing domains of the block copolymer layer; etching pores through the first layer in regions exposed by the mask; wherein a pore size is below 20 nm, the pore size preferably being 6.6 nm or smaller.
Claims15
A method for producing a blood filter, the blood filter being a filter for filtering blood, the method comprising
- providing a first layer;
- providing a block copolymer layer above the first layer;
- converting the block copolymer layer to a mask by selectively removing domains of the block copolymer layer;
- etching pores through the first layer in regions exposed by the mask;
- wherein a pore size is below 20 nm, the pore size preferably being 6.6 nm or smaller.
A blood filter for filtering blood, the blood filter comprising:
- a first layer;
- pores extending through the first layer, wherein a pore size is below 20 nm, the pore size preferably being 6.6 nm;
- wherein the pores of the first layer comprises a plurality of round holes and wherein the plurality of round holes are arranged as a first lattice in a first region of the first layer and as a second lattice in a second region of the first layer, the first and second lattice having same periodicity but different orientations, or
- wherein the pores of the first layer comprises a plurality of slits, and wherein each slit of the plurality of slits extends along a curved path across a surface of the first layer.
Dependencies are inferred from the claim text.