Materials and methods for the immobilization of bioactive species onto polymeric substrates
First Claim
1. A material having bioactive species immobilized thereto, said material comprising:
- a support member;
a first layer comprised of at least one species of a polymeric surfactant non-covalently attached to the support member, wherein the polymeric surfactant is a different chemical species than the support member, wherein the polymeric surfactant is cross-linked to itself in situ with a cross-linking agent; and
at least one type of bioactive species attached to the cross-linking agent.
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Accused Products
Abstract
The present invention is directed to support members having surfaces that are rendered hydrophilic for use as a substrate for the immobilization of bioactive species thereon. The hydrophilic surfaces are chemically stable on the support member. The surfaces are also chemically variable to provide a variety of chemically functional groups for immobilization of bioactive species thereto. The surfaces comprise polymeric surfactants attached onto the surfaces of a support member and covalently cross-linked thereon to form a first layer. Hydrophilic polymers are then attached to the first layer on the support member to form a second layer thereon. The second layer is used to enhance the hydrophilicity of a support member, as well as, to provide a substrate for immobilizing bioactive species thereto. Methods for forming the first and second layers are also provided. In addition, methods for attaching bioactive substances to the hydrophilic polymers are provided.
432 Citations
33 Claims
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1. A material having bioactive species immobilized thereto, said material comprising:
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a support member; a first layer comprised of at least one species of a polymeric surfactant non-covalently attached to the support member, wherein the polymeric surfactant is a different chemical species than the support member, wherein the polymeric surfactant is cross-linked to itself in situ with a cross-linking agent; and at least one type of bioactive species attached to the cross-linking agent. - View Dependent Claims (2, 3, 4, 5, 7, 8, 9, 10)
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6. The material of claim I wherein the polymeric surfactant comprises a multifunctional copolymer comprised of at least one domain having a physicochemical affinity for the support member and at least one domain that is chemically reactive with the cross-linking agent.
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11. A material having immobilized bioactive species comprising:
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a hydrophobic support member; a first layer comprised of at least one species of a polymeric surfactant non-covalently attached to the support member and cross-linked to itself in situ with a cross-linking agent; and at least one type of bioactive species attached to the cross-linking agent. - View Dependent Claims (12, 13, 14, 15, 16, 32, 33)
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17. A material for immobilization of bioactive species thereto, said material comprising:
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a support member; a first layer comprising at least one species of a polymeric surfactant non-covalently attached to the support member, wherein the polymeric surfactant is a different chemical species than the support member, and wherein the polymeric surfactant is cross-linked to itself in situ; and a second layer comprising at least one species of a hydrophilic polymer covalently attached to the first layer, wherein the second layer has chemically reactive moieties for attaching bioactive species thereto. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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Specification