Use of porous polymer materials for storage of biological samples
First Claim
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1. A method of storing a whole blood sample for future analysis comprising applying the whole blood sample directly to a porous polymer monolith material medium and drying the whole blood sample such that the whole blood sample at least partially solidifies and adsorbs or adheres to the porous polymer monolith material;
- wherein the porous polymer monolith material medium is formed by a step-growth polymerization process, wherein the medium additionally comprises one or more supporting layers comprising a porous polymer matrix material, wherein the porous polymer matrix material of each of the one or more support layers is selected from a polyether, polyester, polycarbonate, polyanhydride, polythiophene polymer, and an epoxy resin, wherein the medium allows storage of the whole blood sample for at least one day, wherein the whole blood sample is applied directly to the medium, with the proviso that the porous polymer monolith material is polymerized onto or sits on the one or more supporting layers comprising the porous polymer matrix material without one or more intervening layers of functionality formed by photoinitiated grafting.
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Abstract
The present invention generally relates to the use of porous polymer materials as a medium for the storage of biological samples. The present invention also relates to a method of drying and storage of biological samples on the porous polymer materials. The biological samples include blood and blood plasma samples.
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Citations
24 Claims
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1. A method of storing a whole blood sample for future analysis comprising applying the whole blood sample directly to a porous polymer monolith material medium and drying the whole blood sample such that the whole blood sample at least partially solidifies and adsorbs or adheres to the porous polymer monolith material;
wherein the porous polymer monolith material medium is formed by a step-growth polymerization process, wherein the medium additionally comprises one or more supporting layers comprising a porous polymer matrix material, wherein the porous polymer matrix material of each of the one or more support layers is selected from a polyether, polyester, polycarbonate, polyanhydride, polythiophene polymer, and an epoxy resin, wherein the medium allows storage of the whole blood sample for at least one day, wherein the whole blood sample is applied directly to the medium, with the proviso that the porous polymer monolith material is polymerized onto or sits on the one or more supporting layers comprising the porous polymer matrix material without one or more intervening layers of functionality formed by photoinitiated grafting. - View Dependent Claims (5, 9, 13, 17, 21)
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2. A method of storing a whole blood sample for future analysis comprising:
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applying one or more whole blood samples directly to one or more regions of a porous polymer monolith material medium; partially drying the one or more whole blood samples applied to the medium such that the whole blood sample adsorbs or adheres to the porous polymer monolith material; optionally separating any one or more regions of the medium having the one or more whole blood sample applied thereto from regions without the one or more whole blood sample applied thereto; and optionally further drying the one or more whole blood samples applied to the one or more regions of the medium; wherein the porous polymer monolith material medium is formed by a step-growth polymerization process, wherein the medium additionally comprises one or more supporting layers comprising a porous polymer matrix material, wherein the porous polymer matrix material of each of the one or more support layers is selected from a polyether, polyester, polycarbonate, polyanhydride, polythiophene polymer, and an epoxy resin, wherein the medium allows storage of the whole blood sample for at least one day, wherein the whole blood sample is applied directly to the medium, with the proviso that the porous polymer monolith material is polymerized onto or sits on the one or more supporting layers comprising the porous polymer matrix material without one or more intervening layers of functionality formed by photoinitiated grafting. - View Dependent Claims (6, 10, 14, 18, 22)
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3. A method of analysis of a whole blood sample comprising detecting and identifying an analyte from the whole blood sample, wherein the whole blood sample was directly applied to a porous polymer monolith material medium such that the whole blood sample adsorbs or adheres to the porous polymer monolith material and stored for at least one day prior to detecting and identifying the analyte;
wherein the porous polymer monolith material medium is formed by a step-growth polymerization process, wherein the medium additionally comprises one or more supporting layers comprising a porous polymer matrix material, wherein the porous polymer matrix material of each of the one or more support layers is selected from a polyether, polyester, polycarbonate, polyanhydride, polythiophene polymer, and an epoxy resin, wherein the medium allows storage of the whole blood sample for at least one day, wherein the whole blood sample is applied directly to the medium, with the proviso that the porous polymer monolith material is polymerized onto or sits on the one or more supporting layers comprising the porous polymer matrix material without one or more intervening layers of functionality formed by photoinitiated grafting. - View Dependent Claims (7, 11, 15, 19, 23)
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4. A method for storing and subsequent analysis of a whole blood sample comprising one or more analytes selected from pharmaceutical agents, peptides, proteins, oligonucleotides, DNA, RNA, oligosaccharides and lipids, the method comprising:
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applying the whole blood sample comprising the one or more analytes directly to a porous polymer monolith material medium, wherein the porous polymer monolith material medium is formed by a step-growth polymerization process, wherein the medium additionally comprises one or more supporting layers comprising a porous polymer matrix material, wherein the porous polymer matrix material of each of the one or more support layers is selected from a polyether, polyester, polycarbonate, polyanhydride, polythiophene polymer, and an epoxy resin, wherein the medium allows storage of the whole blood sample for at least one day, wherein the whole blood sample is applied directly to the medium, with the proviso that the porous polymer monolith material is polymerized onto or sits on the one or more supporting layers comprising the porous polymer matrix material without one or more intervening layers of functionality formed by photoinitiated grafting; drying the whole blood sample applied to the medium such that the whole blood sample adsorbs or adheres to the porous polymer monolith material; storing the whole blood sample in the medium for at least one day; retrieving and optionally pre-treating the stored whole blood sample; and analyzing the retrieved and optionally pre-treated whole blood sample for the presence of one or more analytes. - View Dependent Claims (8, 12, 16, 20, 24)
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Specification