Two-dimensional materials and uses thereof
First Claim
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1. A process for forming a blood filtration device, comprising:
- exposing a multilayered material to ions provided by an ion source, the multilayered material comprising a first layer comprising a two-dimensional first material and a second layer of a second material in contact with the first layer, wherein the ions have an ion energy ranging from 1.0 keV to 10 keV, and a flux from 0.1 nA/mm2 to 100 nA/mm2; and
producing a perforated two-dimensional material by producing a plurality of through-holes in the two-dimensional first material by interacting the ions with the two-dimensional first material and with the second material;
forming at least two of a composite membrane comprising a porous substrate having a plurality of pores and a sheet of the perforated two-dimensional material disposed on a surface of the porous substrate and defining a top surface of the composite membrane, wherein the sheet of the perforated two-dimensional material covers at least a portion of the plurality of pores of the porous substrate and wherein at least one pore of the substrate is not covered by the sheet of the perforated two-dimensional material;
introducing one or more occluding moieties at least partially into the at least one uncovered pore to occlude the at least one uncovered pore;
incorporating at least two of the composite membranes to form the blood filtration device;
forming a cross-linked graphene platelet polymer membrane by reacting an epoxide-functionalized graphene platelet with a (meth)acrylate- or (meth)acrylamide-functionalized cross-linker; and
incorporating the cross-linked graphene platelet polymer membrane, having a plurality of cross-linked graphene platelets, into the blood filtration device,wherein the plurality of cross-linked graphene platelets have a graphene portion and a cross-linking portion, the cross-linking portion containing a 4- to 10-atom link.
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Abstract
Various systems and methods relating to two-dimensional materials such as graphene. A membrane include a cross-linked graphene platelet polymer that includes a plurality of cross-linked graphene platelets. The cross-linked graphene platelets include a graphene portion and a cross-linking portion. The cross-linking portion contains a 4 to 10 atom link. The cross-linked graphene platelet polymer is produced by reaction of an epoxide functionalized graphene platelet and a (meth)acrylate or (meth)acrylamide functionalized cross-linker.
681 Citations
15 Claims
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1. A process for forming a blood filtration device, comprising:
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exposing a multilayered material to ions provided by an ion source, the multilayered material comprising a first layer comprising a two-dimensional first material and a second layer of a second material in contact with the first layer, wherein the ions have an ion energy ranging from 1.0 keV to 10 keV, and a flux from 0.1 nA/mm2 to 100 nA/mm2; and producing a perforated two-dimensional material by producing a plurality of through-holes in the two-dimensional first material by interacting the ions with the two-dimensional first material and with the second material; forming at least two of a composite membrane comprising a porous substrate having a plurality of pores and a sheet of the perforated two-dimensional material disposed on a surface of the porous substrate and defining a top surface of the composite membrane, wherein the sheet of the perforated two-dimensional material covers at least a portion of the plurality of pores of the porous substrate and wherein at least one pore of the substrate is not covered by the sheet of the perforated two-dimensional material; introducing one or more occluding moieties at least partially into the at least one uncovered pore to occlude the at least one uncovered pore; incorporating at least two of the composite membranes to form the blood filtration device; forming a cross-linked graphene platelet polymer membrane by reacting an epoxide-functionalized graphene platelet with a (meth)acrylate- or (meth)acrylamide-functionalized cross-linker; and incorporating the cross-linked graphene platelet polymer membrane, having a plurality of cross-linked graphene platelets, into the blood filtration device, wherein the plurality of cross-linked graphene platelets have a graphene portion and a cross-linking portion, the cross-linking portion containing a 4- to 10-atom link. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification