PMID- 36871346 OWN - NLM STAT- MEDLINE DCOM- 20230314 LR - 20230314 IS - 1873-376X (Electronic) IS - 1570-0232 (Linking) VI - 1219 DP - 2023 Mar 15 TI - Preparation of magnetic poly(ethylene glycol dimethacrylate-N-Methacryloyl-(L)-glutamic acid) particles for thrombin purification. PG - 123653 LID - S1570-0232(23)00063-6 [pii] LID - 10.1016/j.jchromb.2023.123653 [doi] AB - In this study, magnetic poly(ethylene glycol dimethacrylate-N-methacryloyl-(L)-glutamic acid) (mPEGDMA-MAGA) particles were prepared by the dispersion polymerization in order to purify thrombin effectively. mPEGDMA-MAGA particles were synthesized by adding different ratios of magnetite (Fe(3)O(4)) to the medium in addition to the monomer phases EGDMA and MAGA. The characterization studies of mPEGDMA-MAGA particles were used by fourier transform infrared spectroscopy, zeta size measurement, scanning electron microscopy and electron spin resonance. mPEGDMA-MAGA particles were used in thrombin adsorption studies from aqueous thrombin solutions in both batch and magnetically stabilized fluidized bed (MSFB) system. Maximum adsorption capacity in pH 7.4 phosphate buffer solution is 964 IU/g polymer and 134 IU/g polymer in MSFB system and batch system, respectively. The developed magnetic affinity particles enabled the separation of thrombin from different patient serum samples in one step. It has also been observed that magnetic particles can be used repeatedly without significant reduction in adsorption capacity. CI - Copyright (c) 2023 Elsevier B.V. All rights reserved. FAU - Cimen, Duygu AU - Cimen D AD - Hacettepe University, Department of Chemistry, Ankara, Turkey. FAU - Bereli, Nilay AU - Bereli N AD - Hacettepe University, Department of Chemistry, Ankara, Turkey. FAU - Gunaydin, Serdar AU - Gunaydin S AD - University of Health Sciences, Department of Cardiovascular Surgery, Ankara City Hospital, Ankara, Turkey. FAU - Denizli, Adil AU - Denizli A AD - Hacettepe University, Department of Chemistry, Ankara, Turkey. Electronic address: denizli@hacettepe.edu.tr. LA - eng PT - Journal Article DEP - 20230228 PL - Netherlands TA - J Chromatogr B Analyt Technol Biomed Life Sci JT - Journal of chromatography. B, Analytical technologies in the biomedical and life sciences JID - 101139554 RN - 7BK5G69305 (ethylene dimethacrylate) RN - 3KX376GY7L (Glutamic Acid) RN - EC 3.4.21.5 (Thrombin) RN - 0 (Methacrylates) RN - 0 (poly(ethylene glycol)-dimethacrylate) RN - 3WJQ0SDW1A (Polyethylene Glycols) SB - IM MH - Humans MH - *Glutamic Acid MH - *Thrombin MH - Hydrogen-Ion Concentration MH - Methacrylates/chemistry MH - Polyethylene Glycols MH - Adsorption MH - Magnetic Phenomena OTO - NOTNLM OT - Magnetically stabilized fluidized bed (MSFB) system OT - Purification OT - Thrombin COIS- Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. EDAT- 2023/03/06 06:00 MHDA- 2023/03/15 06:00 CRDT- 2023/03/05 18:06 PHST- 2023/01/05 00:00 [received] PHST- 2023/02/21 00:00 [revised] PHST- 2023/02/23 00:00 [accepted] PHST- 2023/03/06 06:00 [pubmed] PHST- 2023/03/15 06:00 [medline] PHST- 2023/03/05 18:06 [entrez] AID - S1570-0232(23)00063-6 [pii] AID - 10.1016/j.jchromb.2023.123653 [doi] PST - ppublish SO - J Chromatogr B Analyt Technol Biomed Life Sci. 2023 Mar 15;1219:123653. doi: 10.1016/j.jchromb.2023.123653. Epub 2023 Feb 28.