1
|
Ion-imprinted-based nanochelators for iron(III) removal from synthetic gastric fluid. Polym Bull (Berl) 2021. [DOI: 10.1007/s00289-021-03932-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
2
|
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.
Collapse
Affiliation(s)
- H Yavuz
- Department of Chemistry, Biochemistry Division, Hacettepe University, Ankara - Turkey.
| | | | | | | | | |
Collapse
|
3
|
Çimen D, Göktürk I, Yılmaz F. Removal of iron by chelation with molecularly imprinted supermacroporous cryogel. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2015; 44:1158-66. [PMID: 25727711 DOI: 10.3109/21691401.2015.1011810] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Iron chelation therapy can be used for the selective removal of Fe(3+) ions from spiked human plasma by ion imprinting. N-Methacryloyl-(L)-glutamic acid (MAGA) was chosen as the chelating monomer. In the first step, MAGA was complexed with the Fe(3+) ions to prepare the precomplex, and then the ion-imprinted poly(hydroxyethyl methacrylate-N-methacryloyl-(L)-glutamic acid) [PHEMAGA-Fe(3+)] cryogel column was prepared by cryo-polymerization under a semi-frozen temperature of - 12°C for 24 h. Subsequently, the template, of Fe(3+) ions was removed from the matrix by using 0.1 M EDTA solution. The values for the specific surface area of the imprinted PHEMAGA-Fe(3+) and non-imprinted PHEMAGA cryogel were 45.74 and 7.52 m(2)/g respectively, with a pore size in the range of 50-200 μm in diameter. The maximum Fe(3+) adsorption capacity was 19.8 μmol Fe(3+)/g cryogel from aqueous solutions and 12.28 μmol Fe(3+)/g cryogel from spiked human plasma. The relative selectivity coefficients of ion-imprinted cryogel for Fe(3+)/Ni(2+) and Fe(3+)/Cd(2+) were 1.6 and 4.2-fold greater than the non-imprinted matrix, respectively. It means that the PHEMAGA-Fe(3+) cryogel possesses high selectivity to Fe(3+) ions, and could be used many times without significantly decreasing the adsorption capacity.
Collapse
Affiliation(s)
- Duygu Çimen
- a Department of Chemistry , Hacettepe University , Beytepe, Ankara , Turkey
| | - Ilgım Göktürk
- a Department of Chemistry , Hacettepe University , Beytepe, Ankara , Turkey.,b Division of Nanotechnology and Nanomedicine, Hacettepe University , Beytepe, Ankara , Turkey
| | - Fatma Yılmaz
- c Department of Chemistry Technology , Vocational School of Gerede , Bolu , Turkey
| |
Collapse
|
4
|
Gosecka M, Basinska T, Slomkowski S, Tracz A, Chehimi MM. Mechanism of particle formation in radical emulsion copolymerization of styrene with α-tert-butoxy-ω-vinylbenzyl-polyglycidol macromonomer. POLYMER 2014. [DOI: 10.1016/j.polymer.2013.12.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
5
|
Ergün B, Baydemir G, Andaç M, Yavuz H, Denizli A. Ion imprinted beads embedded cryogels for in vitro removal of iron from β-thalassemic human plasma. J Appl Polym Sci 2011. [DOI: 10.1002/app.35537] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
|
6
|
Özkara S, Say R, Andaç C, Denizli A. An Ion-Imprinted Monolith for in Vitro Removal of Iron out of Human Plasma with Beta Thalassemia. Ind Eng Chem Res 2008. [DOI: 10.1021/ie071471y] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Serpil Özkara
- Department of Chemistry, Biochemistry Division, Hacettepe University, Ankara, Turkey, Department of Chemistry, Anadolu University, Eskisehir, Turkey, and Department of Chemistry, Dicle University, Diyarbakir, Turkey
| | - Ridvan Say
- Department of Chemistry, Biochemistry Division, Hacettepe University, Ankara, Turkey, Department of Chemistry, Anadolu University, Eskisehir, Turkey, and Department of Chemistry, Dicle University, Diyarbakir, Turkey
| | - Cenk Andaç
- Department of Chemistry, Biochemistry Division, Hacettepe University, Ankara, Turkey, Department of Chemistry, Anadolu University, Eskisehir, Turkey, and Department of Chemistry, Dicle University, Diyarbakir, Turkey
| | - Adil Denizli
- Department of Chemistry, Biochemistry Division, Hacettepe University, Ankara, Turkey, Department of Chemistry, Anadolu University, Eskisehir, Turkey, and Department of Chemistry, Dicle University, Diyarbakir, Turkey
| |
Collapse
|
7
|
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
| |
Collapse
|
8
|
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]
|
9
|
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]
|
10
|
|
11
|
|
12
|
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.
Collapse
Affiliation(s)
- A Denizli
- Biochemistry Division, Department of Chemistry, Hacettepe University, 06532 Beytepe, Ankara, Turkey
| | | |
Collapse
|
13
|
Ibrahim EH, Denizli A, Bektaş S, Genç O, Pişkin E. Cadmium removal from human plasma by Cibacron Blue F3GA and thionein incorporated into polymeric microspheres. JOURNAL OF CHROMATOGRAPHY. B, BIOMEDICAL SCIENCES AND APPLICATIONS 1998; 720:217-24. [PMID: 9892085 DOI: 10.1016/s0378-4347(98)00441-1] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Poly(2-hydroxyethylmethacrylate-ethyleneglycoldimethacrylate) [poly(HEMA-EGDMA)] microspheres carrying Cibacron Blue F3GA and/or thionein were prepared and used for the removal of cadmium ions Cd(II) from human plasma. The poly(HEMA-EGDMA) microspheres, in the size range of 150-200 microm in diameter, were produced by a modified suspension copolymerization of HEMA and EGDMA. The reactive triazinyl dye-ligand Cibacron Blue F3GA was then covalently incorporated into the microspheres. The maximum dye incorporation was 16.5 micromol/g. Then, thionein was bound onto the Cibacron Blue F3GA-incorporated microspheres under different conditions. The maximum amount of thionein bound was 14.3 mg/g. The maximum amounts of Cd(II) ions removed from human plasma by poly(HEMA-EGDMA)-Cibacron Blue F3GA and poly(HEMA-EGDMA)-Cibacron Blue F3GA-thionein were of 17.5 mg/g and 38.0 mg/g, respectively. Cd(II) ions could be repeatedly adsorbed and desorbed with both types of microspheres without significant loss in their adsorption capacity.
Collapse
Affiliation(s)
- E H Ibrahim
- Department of Chemistry, Hacettepe University, Ankara, Turkey
| | | | | | | | | |
Collapse
|