1
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Kronek J, Minarčíková A, Kroneková Z, Majerčíková M, Strasser P, Teasdale I. Poly(2-isopropenyl-2-oxazoline) as a Versatile Functional Polymer for Biomedical Applications. Polymers (Basel) 2024; 16:1708. [PMID: 38932057 PMCID: PMC11207257 DOI: 10.3390/polym16121708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 04/16/2024] [Accepted: 05/23/2024] [Indexed: 06/28/2024] Open
Abstract
Functional polymers play an important role in various biomedical applications. From many choices, poly(2-isopropenyl-2-oxazoline) (PIPOx) represents a promising reactive polymer with great potential in various biomedical applications. PIPOx, with pendant reactive 2-oxazoline groups, can be readily prepared in a controllable manner via several controlled/living polymerization methods, such as living anionic polymerization, atom transfer radical polymerization (ATRP), reversible addition-fragmentation transfer (RAFT) or rare earth metal-mediated group transfer polymerization. The reactivity of pendant 2-oxazoline allows selective reactions with thiol and carboxylic group-containing compounds without the presence of any catalyst. Moreover, PIPOx has been demonstrated to be a non-cytotoxic polymer with immunomodulative properties. Post-polymerization functionalization of PIPOx has been used for the preparation of thermosensitive or cationic polymers, drug conjugates, hydrogels, brush-like materials, and polymer coatings available for drug and gene delivery, tissue engineering, blood-like materials, antimicrobial materials, and many others. This mini-review covers new achievements in PIPOx synthesis, reactivity, and use in biomedical applications.
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Affiliation(s)
- Juraj Kronek
- Department for Biomaterials Research, Polymer Institute of the Slovak Academy of Sciences, Dúbravská cesta 9, 845 41 Bratislava, Slovakia; (A.M.); (Z.K.); (M.M.)
| | - Alžbeta Minarčíková
- Department for Biomaterials Research, Polymer Institute of the Slovak Academy of Sciences, Dúbravská cesta 9, 845 41 Bratislava, Slovakia; (A.M.); (Z.K.); (M.M.)
| | - Zuzana Kroneková
- Department for Biomaterials Research, Polymer Institute of the Slovak Academy of Sciences, Dúbravská cesta 9, 845 41 Bratislava, Slovakia; (A.M.); (Z.K.); (M.M.)
| | - Monika Majerčíková
- Department for Biomaterials Research, Polymer Institute of the Slovak Academy of Sciences, Dúbravská cesta 9, 845 41 Bratislava, Slovakia; (A.M.); (Z.K.); (M.M.)
| | - Paul Strasser
- Institute of Polymer Chemistry, Johannes Kepler University, Altenbergerstrasse 69, 4040 Linz, Austria; (P.S.); (I.T.)
| | - Ian Teasdale
- Institute of Polymer Chemistry, Johannes Kepler University, Altenbergerstrasse 69, 4040 Linz, Austria; (P.S.); (I.T.)
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2
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Degirmenci A, Sanyal R, Sanyal A. Metal-Free Click-Chemistry: A Powerful Tool for Fabricating Hydrogels for Biomedical Applications. Bioconjug Chem 2024; 35:433-452. [PMID: 38516745 PMCID: PMC11036366 DOI: 10.1021/acs.bioconjchem.4c00003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 02/17/2024] [Accepted: 02/20/2024] [Indexed: 03/23/2024]
Abstract
Increasing interest in the utilization of hydrogels in various areas of biomedical sciences ranging from biosensing and drug delivery to tissue engineering has necessitated the synthesis of these materials using efficient and benign chemical transformations. In this regard, the advent of "click" chemistry revolutionized the design of hydrogels and a range of efficient reactions was utilized to obtain hydrogels with increased control over their physicochemical properties. The ability to apply the "click" chemistry paradigm to both synthetic and natural polymers as hydrogel precursors further expanded the utility of this chemistry in network formation. In particular, the ability to integrate clickable handles at predetermined locations in polymeric components enables the formation of well-defined networks. Although, in the early years of "click" chemistry, the copper-catalyzed azide-alkyne cycloaddition was widely employed, recent years have focused on the use of metal-free "click" transformations, since residual metal impurities may interfere with or compromise the biological function of such materials. Furthermore, many of the non-metal-catalyzed "click" transformations enable the fabrication of injectable hydrogels, as well as the fabrication of microstructured gels using spatial and temporal control. This review article summarizes the recent advances in the fabrication of hydrogels using various metal-free "click" reactions and highlights the applications of thus obtained materials. One could envision that the use of these versatile metal-free "click" reactions would continue to revolutionize the design of functional hydrogels geared to address unmet needs in biomedical sciences.
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Affiliation(s)
- Aysun Degirmenci
- Department
of Chemistry, Bogazici University, Bebek, Istanbul 34342, Türkiye
| | - Rana Sanyal
- Department
of Chemistry, Bogazici University, Bebek, Istanbul 34342, Türkiye
- Center
for Life Sciences and Technologies, Bogazici
University, Bebek, Istanbul 34342, Türkiye
| | - Amitav Sanyal
- Department
of Chemistry, Bogazici University, Bebek, Istanbul 34342, Türkiye
- Center
for Life Sciences and Technologies, Bogazici
University, Bebek, Istanbul 34342, Türkiye
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3
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Engel N, Hoffmann T, Behrendt F, Liebing P, Weber C, Gottschaldt M, Schubert US. Cryogels Based on Poly(2-oxazoline)s through Development of Bi- and Trifunctional Cross-Linkers Incorporating End Groups with Adjustable Stability. Macromolecules 2024; 57:2915-2927. [PMID: 38560346 PMCID: PMC10977347 DOI: 10.1021/acs.macromol.3c02030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 02/19/2024] [Accepted: 02/22/2024] [Indexed: 04/04/2024]
Abstract
1,4-Bis(iodomethyl)benzene and 1,3,5-tris(iodomethyl)benzene were used as initiators for the cationic ring-opening polymerization (CROP) of 2-ethyl-2-oxazoline (EtOx) and its copolymerization with tert-butyl (3-(4,5-dihydrooxazol-2-yl)propyl)carbamate (BocOx) or methyl 3-(4,5-dihydrooxazol-2-yl)propanoate (MestOx). Kinetic studies confirmed the applicability of these initiators. Termination with suitable nucleophiles resulted in two- and three-armed cross-linkers featuring acrylate, methacrylate, piperazine-acrylamide, and piperazine-methacrylamide as polymerizable ω-end groups. Matrix-assisted laser desorption/ionization mass spectrometry and nuclear magnetic resonance (NMR) spectroscopy confirmed the successful attachment of the respective ω-end groups at all initiation sites for every prepared cross-linkers. Except for acrylate, each ω-end group remained stable during deprotection of BocOx containing cross-linkers. The cryogels were prepared using EtOx-based cross-linkers, as confirmed by solid-state NMR spectroscopy, scanning electron microscopy, and thermogravimetric analysis. Stability tests revealed a complete dissolution of the acrylate-containing gels at pH = 14, whereas the piperazine-acrylamide-based cryogels featured excellent hydrolytic stability.
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Affiliation(s)
- Nora Engel
- Laboratory
of Organic Chemistry and Macromolecular Chemistry (IOMC), Friedrich Schiller University at Jena, Humboldtstraße 10, 07743 Jena, Germany
- Jena
Center for Soft Matter (JCSM), Friedrich
Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Tim Hoffmann
- Laboratory
of Organic Chemistry and Macromolecular Chemistry (IOMC), Friedrich Schiller University at Jena, Humboldtstraße 10, 07743 Jena, Germany
- Jena
Center for Soft Matter (JCSM), Friedrich
Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Florian Behrendt
- Laboratory
of Organic Chemistry and Macromolecular Chemistry (IOMC), Friedrich Schiller University at Jena, Humboldtstraße 10, 07743 Jena, Germany
- Jena
Center for Soft Matter (JCSM), Friedrich
Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Phil Liebing
- Institute
of Inorganic and Analytical Chemistry (IAAC), Friedrich Schiller University at Jena, Humboldtstraße 8, 07743 Jena, Germany
| | - Christine Weber
- Laboratory
of Organic Chemistry and Macromolecular Chemistry (IOMC), Friedrich Schiller University at Jena, Humboldtstraße 10, 07743 Jena, Germany
- Jena
Center for Soft Matter (JCSM), Friedrich
Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Michael Gottschaldt
- Laboratory
of Organic Chemistry and Macromolecular Chemistry (IOMC), Friedrich Schiller University at Jena, Humboldtstraße 10, 07743 Jena, Germany
- Jena
Center for Soft Matter (JCSM), Friedrich
Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Ulrich S. Schubert
- Laboratory
of Organic Chemistry and Macromolecular Chemistry (IOMC), Friedrich Schiller University at Jena, Humboldtstraße 10, 07743 Jena, Germany
- Jena
Center for Soft Matter (JCSM), Friedrich
Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
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4
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Drain BA, Becer RC. Hydrolysis of hydrophobic poly(2-oxazoline)s and their subsequent modification via aza-Michael addition. Des Monomers Polym 2023; 26:214-222. [PMID: 37840642 PMCID: PMC10569348 DOI: 10.1080/15685551.2023.2267232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Accepted: 10/02/2023] [Indexed: 10/17/2023] Open
Abstract
Partially hydrolysed poly(2-oxazoline)s possess unique properties. However, much of the focus in this area has been on water soluble poly(2-oxazoline)s. Where hydrophobic poly(2-oxazoline)s have been used, this is often for selective hydrolysis. However, hydrolysis of very hydrophobic polymers could lead to interesting solution behaviour. Herein, we describe universal conditions for the hydrolysis of poly(2-alkyl-2-oxazoline)s suitable for both hydrophobic and hydrophilic 2-oxazolines. We show that the system utilised gives comparable rates to that of water alone for poly(2-ethyl-2-oxazoline). In addition, poly(2-fatty acid-2-oxazoline) was hydrolysed using the developed system and was found to proceed in a controlled manner allowing the targeting of specific degrees of hydrolysis, albeit much slower than for poly(2-ethyl-2-oxazoline). Finally, we demonstrate the partial functionalisation of poly(2-oxazoline)-poly(ethylene imine) co-polymers via aza-Michael addition.
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Affiliation(s)
- Ben A. Drain
- Department of Chemistry, University of Warwick, Coventry, UK
- School of Engineering and Materials Science, Queen Mary University of London, London, UK
| | - Remzi C. Becer
- Department of Chemistry, University of Warwick, Coventry, UK
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5
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Yang L, Wang F, Ren P, Zhang T, Zhang Q. Poly(2-oxazoline)s: synthesis and biomedical applications. Macromol Res 2023. [DOI: 10.1007/s13233-023-00116-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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6
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Shaligram SV, Regen SL. Increased CO 2/N 2 selectivity of PTMSP by surface crosslinking. Chem Commun (Camb) 2022; 58:3557-3560. [PMID: 35199112 DOI: 10.1039/d2cc00065b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The surface crosslinking of poly[1-(trimethylsilyl)-1-propyne] (PTMSP) membranes by dithiothreitol under thiol-ene click reaction conditions has yielded membranes having CO2/N2 selectivities in excess of 30 with CO2 permeances in excess of 300 GPU (gas permeation units). The simplicity of this surface crosslinking strategy together with these permeation results suggests that PTMSP that is modified in such ways could lead to useful materials for the separation of CO2/N2 from flue gas and for certain other gaseous mixtures.
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Affiliation(s)
- Sayali V Shaligram
- Department of Chemistry Lehigh University, Bethlehem, Pennsylvania 18015, USA.
| | - Steven L Regen
- Department of Chemistry Lehigh University, Bethlehem, Pennsylvania 18015, USA.
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Brossier T, Benkhaled BT, Colpaert M, Volpi G, Guillaume O, Blanquer S, Lapinte V. Polyoxazoline Hydrogels fabricated by Stereolithography. Biomater Sci 2022; 10:2681-2691. [DOI: 10.1039/d2bm00138a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The development of hydrogel materials in additive manufacturing displaying stiff and strong mechanical properties while maintaining high water uptake, remains a great challenge. Taking advantage of the versatility of poly(oxazoline)...
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8
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Drain BA, Beyer VP, Cattoz B, Becer CR. Solvent Dependency in the Synthesis of Multiblock and Cyclic Poly(2-oxazoline)s. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c00529] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- B. A. Drain
- Department of Chemistry, University of Warwick, Coventry CV4 7AL, U.K
- School of Engineering and Materials Science, Queen Mary University of London, London E1 4NS, U.K
| | - V. P. Beyer
- Department of Chemistry, University of Warwick, Coventry CV4 7AL, U.K
- School of Engineering and Materials Science, Queen Mary University of London, London E1 4NS, U.K
| | - B. Cattoz
- Infineum UK Ltd, Milton Hill, Didcot OX13 6BD, U.K
| | - C. R. Becer
- Department of Chemistry, University of Warwick, Coventry CV4 7AL, U.K
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Majerčíková M, Nádaždy P, Chorvát D, Satrapinskyy L, Valentová H, Kroneková Z, Šiffalovič P, Kronek J, Zahoranová A. Effect of Dexamethasone on Thermoresponsive Behavior of Poly(2-Oxazoline) Diblock Copolymers. Polymers (Basel) 2021; 13:polym13091357. [PMID: 33919321 PMCID: PMC8122420 DOI: 10.3390/polym13091357] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 04/13/2021] [Accepted: 04/17/2021] [Indexed: 01/22/2023] Open
Abstract
Thermoresponsive polymers play an important role in designing drug delivery systems for biomedical applications. In this contribution, the effect of encapsulated hydrophobic drug dexamethasone on thermoresponsive behavior of diblock copolymers was studied. A small series of diblock copoly(2-oxazoline)s was prepared by combining thermoresponsive 2-n-propyl-2-oxazoline (nPrOx) and hydrophilic 2-methyl-2-oxazoline (MeOx) in two ratios and two polymer chain lengths. The addition of dexamethasone affected the thermoresponsive behavior of one of the copolymers, nPrOx20-MeOx180, in the aqueous medium by shifting the cloud point temperature to lower values. In addition, the formation of microparticles containing dexamethasone was observed during the heating of the samples. The morphology and number of microparticles were affected by the structure and concentration of copolymer, the drug concentration, and the temperature. The crystalline nature of formed microparticles was confirmed by polarized light microscopy, confocal Raman microscopy, and wide-angle X-ray scattering. The results demonstrate the importance of studying drug/polymer interactions for the future development of thermoresponsive drug carriers.
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Affiliation(s)
- Monika Majerčíková
- Department for Biomaterials Research, Polymer Institute of the Slovak Academy of Sciences, Dúbravská cesta 9, 845 41 Bratislava, Slovakia; (M.M.); (Z.K.)
| | - Peter Nádaždy
- Institute of Physics of the Slovak Academy of Sciences, Dúbravská cesta 9, 845 11 Bratislava, Slovakia; (P.N.); (P.Š.)
| | - Dušan Chorvát
- International Laser Centre, Department of Biophotonics, Ilkovičova 3, 841 04 Bratislava, Slovakia;
| | - Leonid Satrapinskyy
- Department of Experimental Physics, Faculty of Mathematics, Physics and Informatics, Comenius University, Mlynská Dolina, 842 48 Bratislava, Slovakia;
| | - Helena Valentová
- Faculty of Mathematics and Physics, Charles University, Ke Karlovu 3, 121 16 Prague 2, Czech Republic;
| | - Zuzana Kroneková
- Department for Biomaterials Research, Polymer Institute of the Slovak Academy of Sciences, Dúbravská cesta 9, 845 41 Bratislava, Slovakia; (M.M.); (Z.K.)
| | - Peter Šiffalovič
- Institute of Physics of the Slovak Academy of Sciences, Dúbravská cesta 9, 845 11 Bratislava, Slovakia; (P.N.); (P.Š.)
- Centre for Advanced Materials Application, Slovak Academy of Sciences, Dúbravská cesta 9, 845 11 Bratislava, Slovakia
| | - Juraj Kronek
- Department for Biomaterials Research, Polymer Institute of the Slovak Academy of Sciences, Dúbravská cesta 9, 845 41 Bratislava, Slovakia; (M.M.); (Z.K.)
- Correspondence: (J.K.); (A.Z.)
| | - Anna Zahoranová
- Institute of Applied Synthetic Chemistry, Vienna University of Technology, Getreidemarkt 9/163MC, A-1060 Vienna, Austria
- Correspondence: (J.K.); (A.Z.)
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10
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Kocak P, Oz UC, Bolat ZB, Ozkose UU, Gulyuz S, Tasdelen MA, Yilmaz O, Bozkir A, Sahin F, Telci D. The Utilization of Poly(2-ethyl-2-oxazoline)-b-Poly(ε-caprolactone) Ellipsoidal Particles for Intracellular BIKDDA Delivery to Prostate Cancer. Macromol Biosci 2020; 21:e2000287. [PMID: 33191572 DOI: 10.1002/mabi.202000287] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 10/08/2020] [Indexed: 11/10/2022]
Abstract
Prostate cancer is the most common cancer, which is about 15-20% among male cancers worldwide. As most common strategies such as radiotherapy, chemotherapy, or surgery alone can be unsuccessful in the treatment of prostate cancer, this study aims to develop a new approach to deliver newly generated proapoptotic gene, BIKDDA, to androgen independent prostate cancer cells, 22RV1, using new generation nanocarriers called ellipsoids. As far as it is known, this is the first study that assesses the ability of proapoptotic gene BIKDDA to induce apoptosis in prostate cancer cell. BIKDDA encapsulating PEtOx-b-PCL-based ellipsoids are fabricated by solvent-switch method, and their morphology, size, and BIKDDA content are characterized. Gene delivery efficiency of BIKDDA loaded PEtOx-b-PCL ellipsoids is demonstrated by analysis of BIK mRNA expression with real-time PCR. The apoptotic effect of PEtOx-b-PCL ellipsoids loaded with BIKDDA (EPs-BIKDDA) on 22RV1 is shown by Annexin V staining. The obtained results demonstrate that the treatment of 22RV1 cells with EPs-BIKDDA can significantly increase BIK mRNA levels by 4.5-fold leading to cell death. This study not only represents BIKDDA as a potential therapeutic strategy in prostate cancer but also the capacity of ellipsoids as promising in vivo gene delivery vehicles.
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Affiliation(s)
- Polen Kocak
- Department of Genetics and Bioengineering, Faculty of Engineering and Architecture, Yeditepe University, 26 Agustos Campus, Istanbul, 34755, Turkey
| | - Umut Can Oz
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Ankara University, Yenimahalle, Ankara, 06560, Turkey
| | - Zeynep Busra Bolat
- Department of Genetics and Bioengineering, Faculty of Engineering and Architecture, Yeditepe University, 26 Agustos Campus, Istanbul, 34755, Turkey.,Department of Molecular Biology and Genetics, Faculty of Engineering and Natural Sciences, Istanbul Sabahattin Zaim University, Kucukcekmece, Istanbul, 34303, Turkey
| | - Umut Ugur Ozkose
- U. U. Ozkose, S. Gulyuz, Dr. O. Yilmaz, Materials Institute, Marmara Research Center, TUBITAK, Gebze, Kocaeli, 41470, Turkey.,Department of Chemistry, Faculty of Science and Letters, Istanbul Technical University, Maslak, Istanbul, 34469, Turkey.,Department of Chemistry, Faculty of Science and Letters, Piri Reis University, Tuzla, Istanbul, 34940, Turkey
| | - Sevgi Gulyuz
- U. U. Ozkose, S. Gulyuz, Dr. O. Yilmaz, Materials Institute, Marmara Research Center, TUBITAK, Gebze, Kocaeli, 41470, Turkey.,Department of Chemistry, Faculty of Science and Letters, Istanbul Technical University, Maslak, Istanbul, 34469, Turkey
| | - Mehmet Atilla Tasdelen
- Department of Polymer Engineering, Faculty of Engineering, Yalova University, Yalova, 77200, Turkey
| | - Ozgur Yilmaz
- U. U. Ozkose, S. Gulyuz, Dr. O. Yilmaz, Materials Institute, Marmara Research Center, TUBITAK, Gebze, Kocaeli, 41470, Turkey
| | - Asuman Bozkir
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Ankara University, Yenimahalle, Ankara, 06560, Turkey
| | - Fikrettin Sahin
- Department of Genetics and Bioengineering, Faculty of Engineering and Architecture, Yeditepe University, 26 Agustos Campus, Istanbul, 34755, Turkey
| | - Dilek Telci
- Department of Genetics and Bioengineering, Faculty of Engineering and Architecture, Yeditepe University, 26 Agustos Campus, Istanbul, 34755, Turkey
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11
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Šrámková P, Zahoranová A, Kelar J, Kelar Tučeková Z, Stupavská M, Krumpolec R, Jurmanová J, Kováčik D, Černák M. Cold atmospheric pressure plasma: simple and efficient strategy for preparation of poly(2-oxazoline)-based coatings designed for biomedical applications. Sci Rep 2020; 10:9478. [PMID: 32528062 PMCID: PMC7289869 DOI: 10.1038/s41598-020-66423-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Accepted: 05/18/2020] [Indexed: 02/08/2023] Open
Abstract
Poly(2-oxazolines) (POx) are an attractive material of choice for biocompatible and bioactive coatings in medical applications. To prepare POx coatings, the plasma polymerization represents a fast and facile approach that is surface-independent. However, unfavorable factors of this method such as using the low-pressure regimes and noble gases, or poor control over the resulting surface chemistry limit its utilization. Here, we propose to overcome these drawbacks by using well-defined POx-based copolymers prepared by living cationic polymerization as a starting material. Chemically inert polytetrafluoroethylene (PTFE) is selected as a substrate due to its beneficial features for medical applications. The deposited POx layer is additionally post-treated by non-equilibrium plasma generated at atmospheric pressure. For this purpose, diffuse coplanar surface barrier discharge (DCSBD) is used as a source of "cold" homogeneous plasma, as it is operating at atmospheric pressure even in ambient air. Prepared POx coatings possess hydrophilic nature with an achieved water contact angle of 60°, which is noticeably lower in comparison to the initial value of 106° for raw PTFE. Moreover, the increased fibroblasts adhesion in comparison to raw PTFE is achieved, and the physical and biological properties of the POx-modified surfaces remain stable for 30 days.
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Affiliation(s)
- Petra Šrámková
- Department of Physical Electronics, Faculty of Science, Masaryk University, Kotlarska 2, 611 37, Brno, Czech Republic.
| | - Anna Zahoranová
- Dapartment for Biomaterials Research, Polymer Institute, Slovak Academy of Sciences, Dubravska cesta 9, 845 41, Bratislava, Slovakia
| | - Jakub Kelar
- Department of Physical Electronics, Faculty of Science, Masaryk University, Kotlarska 2, 611 37, Brno, Czech Republic
| | - Zlata Kelar Tučeková
- Department of Physical Electronics, Faculty of Science, Masaryk University, Kotlarska 2, 611 37, Brno, Czech Republic
| | - Monika Stupavská
- Department of Physical Electronics, Faculty of Science, Masaryk University, Kotlarska 2, 611 37, Brno, Czech Republic
| | - Richard Krumpolec
- Department of Physical Electronics, Faculty of Science, Masaryk University, Kotlarska 2, 611 37, Brno, Czech Republic
| | - Jana Jurmanová
- Department of Physical Electronics, Faculty of Science, Masaryk University, Kotlarska 2, 611 37, Brno, Czech Republic
| | - Dušan Kováčik
- Department of Physical Electronics, Faculty of Science, Masaryk University, Kotlarska 2, 611 37, Brno, Czech Republic
| | - Mirko Černák
- Department of Physical Electronics, Faculty of Science, Masaryk University, Kotlarska 2, 611 37, Brno, Czech Republic
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12
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Amirova A, Rodchenko S, Kurlykin M, Tenkovtsev A, Krasnou I, Krumme A, Filippov A. Synthesis and Investigation of Thermo-Induced Gelation of Partially Cross-Linked Poly-2-isopropyl-2-oxazoline in Aqueous Media. Polymers (Basel) 2020; 12:E698. [PMID: 32245164 PMCID: PMC7182854 DOI: 10.3390/polym12030698] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 03/17/2020] [Accepted: 03/18/2020] [Indexed: 12/19/2022] Open
Abstract
Water-soluble, partially cross-linked poly-2-isopropyl-2-oxazoline combining the properties of chemical and physical gels was synthesized by a two-step procedure. Thermally induced sol-gel transition in its aqueous solution was studied by rheology, light scattering, and turbidimetry. It was demonstrated that the synthesized product is bimodal; it consists of linear and cross-linked components. The cross-linked components are responsible for the gelation, while the linear ones abate the viscosity growth. Heating the solution above the phase transition temperature leads to the self-assembly of the particles into a physical gel. The combination of chemical and physical cross-linking was found to be a prospective route for thermosensitive gel development.
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Affiliation(s)
- Alina Amirova
- Institute of Macromolecular Compounds of the Russian Academy of Sciences, Bolshoy pr., 31, Saint Petersburg 199004, Russia
| | - Serafim Rodchenko
- Institute of Macromolecular Compounds of the Russian Academy of Sciences, Bolshoy pr., 31, Saint Petersburg 199004, Russia
| | - Mikhail Kurlykin
- Institute of Macromolecular Compounds of the Russian Academy of Sciences, Bolshoy pr., 31, Saint Petersburg 199004, Russia
| | - Andrey Tenkovtsev
- Institute of Macromolecular Compounds of the Russian Academy of Sciences, Bolshoy pr., 31, Saint Petersburg 199004, Russia
| | - Illia Krasnou
- Department of Materials and Environmental Technology, Tallinn University of Technology, Ehitajate tee 5, Tallinn 19086, Estonia
| | - Andres Krumme
- Department of Materials and Environmental Technology, Tallinn University of Technology, Ehitajate tee 5, Tallinn 19086, Estonia
| | - Alexander Filippov
- Institute of Macromolecular Compounds of the Russian Academy of Sciences, Bolshoy pr., 31, Saint Petersburg 199004, Russia
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13
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Segiet D, Jerusalem R, Katzenberg F, Tiller JC. Investigation of the swelling behavior of hydrogels derived from high‐molecular‐weight poly(2‐ethyl‐2‐oxazoline). JOURNAL OF POLYMER SCIENCE 2020. [DOI: 10.1002/pol.20190267] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Dominik Segiet
- Biomaterials and Polymer Science, Department of Biochemical and Chemical Engineering Dortmund Germany
| | - Robert Jerusalem
- Biomaterials and Polymer Science, Department of Biochemical and Chemical Engineering Dortmund Germany
| | - Frank Katzenberg
- Biomaterials and Polymer Science, Department of Biochemical and Chemical Engineering Dortmund Germany
| | - Joerg C. Tiller
- Biomaterials and Polymer Science, Department of Biochemical and Chemical Engineering Dortmund Germany
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14
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Catechol-modified poly(oxazoline)s with tunable degradability facilitate cell invasion and lateral cartilage integration. J IND ENG CHEM 2019. [DOI: 10.1016/j.jiec.2019.06.038] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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15
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Blöhbaum J, Paulus I, Pöppler AC, Tessmar J, Groll J. Influence of charged groups on the cross-linking efficiency and release of guest molecules from thiol-ene cross-linked poly(2-oxazoline) hydrogels. J Mater Chem B 2019; 7:1782-1794. [PMID: 32254920 PMCID: PMC6592217 DOI: 10.1039/c8tb02575d] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Accepted: 01/16/2019] [Indexed: 12/21/2022]
Abstract
We describe the preparation of hydrogels using highly functionalized poly(oxazoline) based polymeric precursors and cross-linking via UV mediated radical thiol-ene chemistry. Random copolymers were synthesized based on the combination of the more hydrophilic 2-methyl-2-oxazoline or the less hydrophilic monomer 2-ethyl-2-oxazoline with 2-(3-butenyl)-2-oxazoline. These copolymers were functionalized via a post-polymerization technique with thiol or cysteine functionality at the side chain. Hence, hydrogels were obtained, for which the thermo-responsive behavior, network density and correlated properties such as swelling and mechanics, as well as the possibility of electrostatic interaction, can be tuned. Cell culture tests demonstrated good cytocompatibility of the synthesized copolymers and hydrogels. A study with two low molecular weight substances, methylene blue and fluorescein sodium, was performed to investigate how the thermo-responsive behavior or the positive charge incorporated by cysteine could influence the interaction with the compounds. It was found that the interaction with the hydrogel network was strongly influenced by the chemical properties of the dye. A hydrophilic and positively charged hydrogel network was shown to be a promising candidate for the uptake and prolonged release of negatively charged low molecular weight substances.
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Affiliation(s)
- Julia Blöhbaum
- Department of Functional Materials in Medicine and Dentistry and Bavarian Polymer Institute (BPI)
, University of Würzburg
,
Pleicherwall 2
, 97070 Würzburg
, Germany
.
| | - Ilona Paulus
- Department of Functional Materials in Medicine and Dentistry and Bavarian Polymer Institute (BPI)
, University of Würzburg
,
Pleicherwall 2
, 97070 Würzburg
, Germany
.
| | - Ann-Christin Pöppler
- Institute of Organic Chemistry
, University of Würzburg
, Am Hubland
,
97074 Würzburg
, Germany
| | - Jörg Tessmar
- Department of Functional Materials in Medicine and Dentistry and Bavarian Polymer Institute (BPI)
, University of Würzburg
,
Pleicherwall 2
, 97070 Würzburg
, Germany
.
| | - Jürgen Groll
- Department of Functional Materials in Medicine and Dentistry and Bavarian Polymer Institute (BPI)
, University of Würzburg
,
Pleicherwall 2
, 97070 Würzburg
, Germany
.
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16
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Development of surface-attached thin film of non-fouling hydrogel from poly(2-oxazoline). JOURNAL OF POLYMER RESEARCH 2019. [DOI: 10.1007/s10965-018-1677-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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17
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Oudin A, Chauvin J, Gibot L, Rols MP, Balor S, Goudounèche D, Payré B, Lonetti B, Vicendo P, Mingotaud AF, Lapinte V. Amphiphilic polymers based on polyoxazoline as relevant nanovectors for photodynamic therapy. J Mater Chem B 2019; 7:4973-4982. [DOI: 10.1039/c9tb00118b] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Coumarin crosslinked polyoxazoline-based vectors developed for efficient photodynamic therapy.
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18
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Lorson T, Lübtow MM, Wegener E, Haider MS, Borova S, Nahm D, Jordan R, Sokolski-Papkov M, Kabanov AV, Luxenhofer R. Poly(2-oxazoline)s based biomaterials: A comprehensive and critical update. Biomaterials 2018; 178:204-280. [DOI: 10.1016/j.biomaterials.2018.05.022] [Citation(s) in RCA: 204] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Revised: 05/11/2018] [Accepted: 05/14/2018] [Indexed: 02/06/2023]
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19
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Dargaville TR, Park J, Hoogenboom R. Poly(2‐oxazoline) Hydrogels: State‐of‐the‐Art and Emerging Applications. Macromol Biosci 2018; 18:e1800070. [DOI: 10.1002/mabi.201800070] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Revised: 03/28/2018] [Indexed: 12/22/2022]
Affiliation(s)
- Tim R. Dargaville
- Institute of Health and Biomedical Innovation Science and Engineering Faculty Queensland University of Technology Queensland 4001 Australia
| | - Jong‐Ryul Park
- Institute of Health and Biomedical Innovation Science and Engineering Faculty Queensland University of Technology Queensland 4001 Australia
| | - Richard Hoogenboom
- Supramolecular Chemistry Group Centre of Macromolecular Chemistry (CMaC) Department of Organic and Macromolecular Chemistry Ghent University Krijgslaan 281 S4 B‐9000 Ghent Belgium
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20
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Hrdlička L, Šrámková P, Prousek J, Kronek J. Environmental toxicity study of poly(2-oxazoline)s. CHEMICAL PAPERS 2018. [DOI: 10.1007/s11696-018-0410-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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