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Yavuz H, Andaç M, Uzun L, Say R, Denizli A. Molecular Recognition Based Iron Removal from Human Plasma with Imprinted Membranes. Int J Artif Organs 2018; 29:900-11. [PMID: 17033998 DOI: 10.1177/039139880602900911] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The aim of this study is to prepare ion-imprinted poly(2-hydroxyethyl methacrylate) (HEMA) based membranes which can be used for the selective removal of Fe3+ ions from Fe3+-overdosed human plasma. N-methacryloyl-(L)-glutamic acid (MAGA) was chosen as the ioncomplexing monomer. In the first step, Fe3+ was complexed with MAGA and then, the Fe3+-imprinted poly(HEMA-MAGA) membranes were prepared by UV-initiated photo-polymerization of HEMA and MAGA-Fe3+ complex in the presence of an initiator (benzoyl peroxide). After that, the template (i.e., Fe3+ ions) was removed by using 0.1 M EDTA solution at room temperature. The specific surface area of the Fe3+-imprinted poly(HEMA-MAGA) membranes was found to be 49.2 m2/g and the swelling ratio was 92%. According to the elemental analysis results, the polymeric membranes contained 145.7 μmol MAGA/g polymer. The maximum adsorption capacity was 164.2 μmol Fe3+/g membrane. The relative selectivity coefficients of ion-imprinted membranes for Fe3+/Zn2+ and Fe3+/Cr3+ were 12.6 and 62.5 times greater than the non-imprinted matrix, respectively. The Fe3+-imprinted poly(HEMA-MAGA) membranes could be used many times without decreasing their Fe3+ adsorption capacities significantly.
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Affiliation(s)
- H Yavuz
- Department of Chemistry, Biochemistry Division, Hacettepe University, Ankara - Turkey.
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Yameen B, Ali M, Álvarez M, Neumann R, Ensinger W, Knoll W, Azzaroni O. A facile route for the preparation of azide-terminated polymers. “Clicking” polyelectrolyte brushes on planar surfaces and nanochannels. Polym Chem 2010. [DOI: 10.1039/b9py00201d] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Candan N, Tüzmen N, Andac M, Andac CA, Say R, Denizli A. Cadmium removal out of human plasma using ion-imprinted beads in a magnetic column. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2009. [DOI: 10.1016/j.msec.2008.06.002] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Karabörk M, Ersöz A, Denizli A, Say R. Polymer−Clay Nanocomposite Iron Traps Based on Intersurface Ion-Imprinting. Ind Eng Chem Res 2008. [DOI: 10.1021/ie070885o] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Muharrem Karabörk
- Department of Chemistry, Anadolu University, Eskisehir, Turkey, Department of Chemistry, Hacettepe University, Ankara, Turkey, and Plant, Drug and Scientific Researches Center, Anadolu University, Eskisehir, Turkey
| | - Arzu Ersöz
- Department of Chemistry, Anadolu University, Eskisehir, Turkey, Department of Chemistry, Hacettepe University, Ankara, Turkey, and Plant, Drug and Scientific Researches Center, Anadolu University, Eskisehir, Turkey
| | - Adil Denizli
- Department of Chemistry, Anadolu University, Eskisehir, Turkey, Department of Chemistry, Hacettepe University, Ankara, Turkey, and Plant, Drug and Scientific Researches Center, Anadolu University, Eskisehir, Turkey
| | - Rídvan Say
- Department of Chemistry, Anadolu University, Eskisehir, Turkey, Department of Chemistry, Hacettepe University, Ankara, Turkey, and Plant, Drug and Scientific Researches Center, Anadolu University, Eskisehir, Turkey
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Aşır S, Uzun L, Türkmen D, Say R, Denizli A. Ion‐selective Imprinted Superporous Monolith for Cadmium Removal from Human Plasma. SEP SCI TECHNOL 2005. [DOI: 10.1080/01496390500385376] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Yavuz H, Say R, Denizli A. Iron removal from human plasma based on molecular recognition using imprinted beads. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2005. [DOI: 10.1016/j.msec.2005.04.005] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Andaç M, Say R, Denizli A. Molecular recognition based cadmium removal from human plasma. J Chromatogr B Analyt Technol Biomed Life Sci 2004; 811:119-26. [PMID: 15522710 DOI: 10.1016/j.jchromb.2004.08.024] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2003] [Accepted: 08/16/2004] [Indexed: 10/26/2022]
Abstract
Molecularly imprinted polymers (MIPs) are easy to prepare, stable, inexpensive and capable of molecular recognition. MIPs can be considered as affinity separation media. Cadmium is a carcinogenic and mutagenic element. There is no specific treatment available for acute or chronic metal poisoning. Besides supportive therapy and hemodialysis, metal poisoning is often treated with commercially available chelating agents including EDTA and dimercaprol. However, there is histopathological evidence for increased toxicity in animals when these agents are utilized. The aim of this study is to prepare ion-imprinted polymers, which can be used for the selective removal of Cd2+ ions from Cd2+-overdosed human plasma. N-Methacryloly-(L)-cysteinemethylester (MAC) was chosen as the complexing monomer. In the first step, Cd2+ was complexed with MAC and the Cd2+ -imprinted p(HEMA-MAC) beads were synthesized by suspension polymerization. After that, the template (i.e., Cd2+ ions) were removed using 0.1 M thiourea solution. The specific surface area of the Cd2+ -imprinted poly(HEMA-MAC) beads was found to be 19.4 m2/g with a size range of 63-140 microm in diameter and the swelling ratio was 78%. According to the elemental analysis results, the beads contained 42.1 micromol MAC/g polymer. The maximum adsorption capacity was 32.5 micromol Cd2+/g beads. The relative selectivity coefficients of imprinted beads for Cd2+/Pb2+ and Cd2+/Zn2+ were 7.8 and 1683 times greater than non-imprinted matrix, respectively. The Cd2+-imprinted poly(HEMA-MAC) beads could be used many times without decreasing their adsorption capacities significantly.
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Affiliation(s)
- Müge Andaç
- Biochemistry Division, Department of Chemistry, Hacettepe University, Ankara, Turkey
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Yıldırmaz G, Akgöl S, Yakup Arıca M, Sönmez H, Denizli A. Fluoride release from microporous poly(2-hydroxyethyl methacrylate) membranes. REACT FUNCT POLYM 2003. [DOI: 10.1016/s1381-5148(03)00047-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Denizli A, Yavuz H, Arpa C, Bektas S, Genç Ö. Cysteinylhexapeptide Attached Poly(2-Hydroxyethyl Methacrylate) Beads for Cd(II) Removal from Human Plasma in a Packed-Bed Column. SEP SCI TECHNOL 2003. [DOI: 10.1081/ss-120019413] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Uzun L, Denizli A. Metal-chelated polyamide hollow fibers for human serum albumin separation. J Appl Polym Sci 2002. [DOI: 10.1002/app.11298] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Comparison of adsorption performances of metal–chelated polyamide hollow fibre membranes in lysozyme separation. Colloids Surf B Biointerfaces 2002. [DOI: 10.1016/s0927-7765(01)00278-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Kayirhan-Denizli F, Arica MY, Denizli A. Fibronectin purification from human plasma in a packed-bed column system with gelatin immobilized PHEMA microspheres. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 2002; 12:479-89. [PMID: 11469779 DOI: 10.1163/156856201300194225] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Bioaffinity chromatography has a unique and powerful role that is used as a purification tool in the production of therapeutic plasma protein derivatives. In this study, a bioaffinity-ligand, i.e. gelatin, was covalently immobilized with PHEMA microspheres (150-200 microm in diameter). The affinity sorbent carrying 7.5 mg gelatin g(-1) polymer was then used to separate fibronectin from human plasma in a packed-bed column system. Fibronectin separation from human plasma on unmodified PHEMA microspheres was 0.45 mg g(-1), while much higher adsorption values, up to 21.8 mg g(-1), were obtained with gelatin-immobilized microspheres. The fibronectin adsorption capacity of the microspheres decreased with an increase in the recirculation rate of plasma. Fibronectin adsorption increased with decreasing temperature, and the maximum adsorption achieved at 4 degrees C (26.3 mg fibronectin g(-1)). Up to 94.7% of the adsorbed fibronectin was desorbed by using 2 M urea in the presence of 1 M sodium chloride as elution agent. The adsorption-desorption cycle was repeated ten times using the same affinity column. There was no remarkable reduction in the adsorption capacity of the gelatin-immobilized PHEMA microspheres.
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Affiliation(s)
- F Kayirhan-Denizli
- Turkish Atomic Energy Authority, Nuclear Research and Training Center, Ankara
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Abstract
Dye-ligands have been considered as one of the important alternatives to natural counterparts for specific affinity chromatography. Dye-ligands are able to bind most types of proteins, in some cases in a remarkably specific manner. They are commercially available, inexpensive, and can easily be immobilized, especially on matrices bearing hydroxyl groups. Although dyes are all synthetic in nature, they are still classified as affinity ligands because they interact with the active sites of many proteins mimicking the structure of the substrates, cofactors, or binding agents for those proteins. A number of textile dyes, known as reactive dyes, have been used for protein purification. Most of these reactive dyes consist of a chromophore (either azo dyes, anthraquinone, or phathalocyanine), linked to a reactive group (often a mono- or dichlorotriazine ring). The interaction between the dye ligand and proteins can be by complex combination of electrostatic, hydrophobic, hydrogen bonding. Selection of the supporting matrix is the first important consideration in dye-affinity systems. There are several methods for immobilization of dye molecules onto the support matrix, in which usually several intermediate steps are followed. Both the adsorption and elution steps should carefully be optimized/designed for a successful separation. Dye-affinity systems in the form of spherical sorbents or as affinity membranes have been used in protein separation.
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Affiliation(s)
- A Denizli
- Biochemistry Division, Department of Chemistry, Hacettepe University, 06532 Beytepe, Ankara, Turkey
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Şenel S, Akgöl S, Arica Y, Denizli A. Dye-affinity hollow-fibres and their lysozyme adsorption-desorption characteristics. POLYM INT 2001. [DOI: 10.1002/pi.759] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Zinc ion-promoted adsorption of lysozyme to Cibacron Blue F3GA-attached microporous polyamide hollow-fiber membranes. Colloids Surf A Physicochem Eng Asp 2001. [DOI: 10.1016/s0927-7757(00)00841-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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