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Babuka D, Kolouchova K, Loukotova L, Sedlacek O, Groborz O, Skarkova A, Zhigunov A, Pavlova E, Hoogenboom R, Hruby M, Stepanek P. Self-Assembly, Drug Encapsulation, and Cellular Uptake of Block and Gradient Copolymers of 2-Methyl-2-oxazine and 2- n-Propyl/butyl-2-oxazoline. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c01794] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- David Babuka
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovskeho sq. 2, Prague 6 162 06, Czech Republic
- Department of Biophysics, Institute of Physics, Faculty of Mathematics and Physics, Charles University, Ke Karlovu 3, Prague 2 121 16, Czech Republic
| | - Kristyna Kolouchova
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovskeho sq. 2, Prague 6 162 06, Czech Republic
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, Hlavova 8, Prague 2 128 00, Czech Republic
| | - Lenka Loukotova
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovskeho sq. 2, Prague 6 162 06, Czech Republic
| | - Ondrej Sedlacek
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, Hlavova 8, Prague 2 128 00, Czech Republic
- Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281-S4, 9000 Ghent, Belgium
| | - Ondrej Groborz
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovskeho sq. 2, Prague 6 162 06, Czech Republic
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo sq. 542, Prague 6 162 06, Czech Republic
- Institute of Biophysics and Informatics, Charles University, First Faculty of Medicine, Salmovská 1, Prague 2 120 00, Czech Republic
| | - Aneta Skarkova
- Department of Cell Biology, Charles University, Vinicna 7, Prague 12843, Czech Republic
- Biotechnology and Biomedicine Centre of the Academy of Sciences and Charles University (BIOCEV), Prumyslova 595, Vestec u Prahy 25242, Czech Republic
| | - Alexander Zhigunov
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovskeho sq. 2, Prague 6 162 06, Czech Republic
| | - Ewa Pavlova
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovskeho sq. 2, Prague 6 162 06, Czech Republic
| | - Richard Hoogenboom
- Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281-S4, 9000 Ghent, Belgium
| | - Martin Hruby
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovskeho sq. 2, Prague 6 162 06, Czech Republic
| | - Petr Stepanek
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovskeho sq. 2, Prague 6 162 06, Czech Republic
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Oleszko-Torbus N. Recent Advances in Modifications, Properties and Applications of 2-Isopropyl-2-Oxazoline (Co)Polymers. POLYM REV 2021. [DOI: 10.1080/15583724.2021.1993252] [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]
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Oleszko-Torbus N, Mendrek B, Kowalczuk A, Wałach W, Trzebicka B, Utrata-Wesołek A. The Role of Polymer Structure in Formation of Various Nano- and Microstructural Materials: 30 Years of Research in the Laboratory of Nano- and Microstructural Materials at the Centre of Polymer and Carbon Materials PAS. Polymers (Basel) 2021; 13:2892. [PMID: 34502932 PMCID: PMC8434041 DOI: 10.3390/polym13172892] [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: 08/06/2021] [Revised: 08/25/2021] [Accepted: 08/26/2021] [Indexed: 11/16/2022] Open
Abstract
The review summarizes the research carried out in the Laboratory of Nano- and Microstructural Materials at the Centre of Polymer and Carbon Materials, Polish Academy of Sciences (CMPW PAS). Studies carried out for many years under the guidance of Professor Andrzej Dworak led to the development and exploration of the mechanisms of oxirane and cyclic imine polymerization and controlled radical polymerization of methacrylate monomers. Based on that knowledge, within the last three decades, macromolecules with the desired composition, molar mass and topology were obtained and investigated. The ability to control the structure of the synthesized polymers turned out to be important, as it provided a way to tailor the physiochemical properties of the materials to their specific uses. Many linear polymers and copolymers as well as macromolecules with branched, star, dendritic and hyperbranched architectures were synthesized. Thanks to the applied controlled polymerization techniques, it was possible to obtain hydrophilic, hydrophobic, amphiphilic and stimulus-sensitive polymers. These tailor-made polymers with controlled properties were used for the construction of various types of materials, primarily on the micro- and nanoscales, with a wide range of possible applications, mainly in biomedicine. The diverse topology of polymers, and thus their properties, made it possible to obtain various types of polymeric nanostructures and use them as nanocarriers by encapsulation of biologically active substances. Additionally, polymer layers were obtained with features useful in medicine, particularly regenerative medicine and tissue engineering.
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Affiliation(s)
| | | | | | | | - Barbara Trzebicka
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 41-819 Zabrze, Poland; (N.O.-T.); (B.M.); (A.K.); (W.W.)
| | - Alicja Utrata-Wesołek
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 41-819 Zabrze, Poland; (N.O.-T.); (B.M.); (A.K.); (W.W.)
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Van Guyse JFR, Bera D, Hoogenboom R. Adamantane Functionalized Poly(2-oxazoline)s with Broadly Tunable LCST-Behavior by Molecular Recognition. Polymers (Basel) 2021; 13:374. [PMID: 33530443 PMCID: PMC7865518 DOI: 10.3390/polym13030374] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 01/20/2021] [Accepted: 01/21/2021] [Indexed: 01/27/2023] Open
Abstract
Smart or adaptive materials often utilize stimuli-responsive polymers, which undergo a phase transition in response to a given stimulus. So far, various stimuli have been used to enable the modulation of drug release profiles, cell-interactive behavior, and optical and mechanical properties. In this respect, molecular recognition is a powerful tool to fine-tune the stimuli-responsive behavior due to its high specificity. Within this contribution, a poly(2-oxazoline) copolymer bearing adamantane side chains was synthesized via triazabicyclodecene-catalyzed amidation of the ester side chains of a poly(2-ethyl-2-oxazoline-stat-2-methoxycarbonylpropyl-2-oxazoline) statistical copolymer. Subsequent complexation of the pendant adamantane groups with sub-stoichiometric amounts (0-1 equivalents) of hydroxypropyl β-cyclodextrin or β-cyclodextrin enabled accurate tuning of its lower critical solution temperature (LCST) over an exceptionally wide temperature range, spanning from 30 °C to 56 °C. Furthermore, the sharp thermal transitions display minimal hysteresis, suggesting a reversible phase transition of the complexed polymer chains (i.e., the β-cyclodextrin host collapses together with the polymers) and a minimal influence by the temperature on the supramolecular association. Analysis of the association constant of the polymer with hydroxypropyl β-cyclodextrin via 1H NMR spectroscopy suggests that the selection of the macrocyclic host and rational polymer design can have a profound influence on the observed thermal transitions.
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Affiliation(s)
| | | | - 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; (J.F.R.V.G.); (D.B.)
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Amirova A, Rodchenko S, Kurlykin M, Tenkovtsev A, Krasnou I, Krumme A, Filippov A. Intermolecular interaction of thermoresponsive poly‐2‐isopropyl‐2‐oxazoline in solutions and interpolymer complex with fiber‐forming polyethylene oxide. J Appl Polym Sci 2021. [DOI: 10.1002/app.49708] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Alina Amirova
- Institute of Macromolecular Compounds of the Russian Academy of Sciences Saint Petersburg Russia
| | - Serafim Rodchenko
- Institute of Macromolecular Compounds of the Russian Academy of Sciences Saint Petersburg Russia
| | - Mikhail Kurlykin
- Institute of Macromolecular Compounds of the Russian Academy of Sciences Saint Petersburg Russia
| | - Andrey Tenkovtsev
- Institute of Macromolecular Compounds of the Russian Academy of Sciences Saint Petersburg Russia
| | - Illia Krasnou
- Department of Materials and Environmental Technology Tallinn University of Technology Tallinn Estonia
| | - Andres Krumme
- Department of Materials and Environmental Technology Tallinn University of Technology Tallinn Estonia
| | - Alexander Filippov
- Institute of Macromolecular Compounds of the Russian Academy of Sciences Saint Petersburg Russia
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Otulakowski Ł, Kasprów M, Strzelecka A, Dworak A, Trzebicka B. Thermal Behaviour of Common Thermoresponsive Polymers in Phosphate Buffer and in Its Salt Solutions. Polymers (Basel) 2020; 13:E90. [PMID: 33379398 PMCID: PMC7795651 DOI: 10.3390/polym13010090] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 12/18/2020] [Accepted: 12/22/2020] [Indexed: 12/14/2022] Open
Abstract
Thermoresponsive polymers are a promising material for drug nanocarrier preparation, which makes the study of their aggregation in physiological conditions very important. In this paper, the thermal behaviour of the thermoresponsive polymers poly(N-isopropylacrylamide), poly(2-isopropyl-2-oxazoline-co-2-n-propyl-2-oxazoline) and poly[(2-hydroxyethyl methacrylate)-co-oligo(ethylene glycol) methyl ether methacrylate] were studied in phosphate buffer (PBS) and solutions of its salts in concentration as in PBS. The thermal response of the polymers was measured using UV-Vis and dynamic light scattering (DLS). The salts shifted the cloud point temperature (TCP) of the (co)polymers to higher values compared to the TCP of aqueous polymer solutions. In PBS and NaCl solutions, all polymers exhibited an unexpected and previously unreported transmittance profile. During heating, an additional aggregation of polymers appeared above the TCP accompanied by the formation of a precipitate. In monosodium phosphate solutions and pure water, the studied polymers showed lower critical solution temperature (LCST-type) behaviour. DLS measurements showed that a salt influenced the size of the resulting polymer particles. The sizes and stability of particles depended on the heating rate. In PBS and NaCl solutions, the size of particles in the dispersion decreased above 60 °C, and the precipitate appeared on the bottom of the cuvette. The additional aggregation of polymer and its falling out of solution may hinder the removal of carriers from the body and has to be taken into account when preparing nanocarriers.
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Affiliation(s)
| | | | | | | | - Barbara Trzebicka
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, M. Curie-Skłodowskiej 34, 41-819 Zabrze, Poland; (Ł.O.); (M.K.); (A.S.); (A.D.)
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Poly(2-oxazoline) Matrices with Temperature-Dependent Solubility-Interactions with Water and Use for Cell Culture. MATERIALS 2020; 13:ma13122702. [PMID: 32545841 PMCID: PMC7344873 DOI: 10.3390/ma13122702] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 06/10/2020] [Accepted: 06/11/2020] [Indexed: 12/22/2022]
Abstract
In this work, we studied the stability of matrices with temperature-dependent solubility and their interactions with water at physiological temperature for their application in cell culture in vitro. Gradient copolymers of 2-isopropyl- with 2-n-propyl-2-oxazoline (P(iPrOx-nPrOx)) were used to prepare the matrices. The comonomer ratio during polymerization was chosen such that the cloud point temperature (TCP) of the copolymer was below 37 °C while the glass transition (Tg) was above 37 °C. The role of the support for matrices in the context of their stability in aqueous solution was examined. Therefore, matrices in the form of both self-supported bulk polymer materials (fibrillar mats and molds) and polymer films supported on the silica slides were examined. All of the matrices remained undissolved when incubated in water at a temperature above TCP. For the self-supported mats and molds, we observed the loss of shape stability, but, in the case of films supported on silica slides, only slight changes in morphology were observed. For a more in-depth investigation of the origin of the shape deformation of self-supported matrices, we analyzed the wettability, thickness, and water uptake of films on silica support because the matrices remained undeformed under these conditions. It was found that, above the TCP of P(iPrOx-nPrOx), the wettability of the films decreased, but at the same time the films absorbed water and swelled. We examined how this specific behavior of the supported films influenced the culture of fibroblasts. The temperature-dependent solubility of the matrices and the possibility of noninvasive cell separation were also examined.
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