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Yang M, Haider MS, Forster S, Hu C, Luxenhofer R. Synthesis and Investigation of Chiral Poly(2,4-disubstituted-2-oxazoline)-Based Triblock Copolymers, Their Self-Assembly, and Formulation with Chiral and Achiral Drugs. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c00229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Mengshi Yang
- Functional Polymer Materials, Chair for Chemical Technology of Material Synthesis, Institute for Functional Materials and Biofabrication, Department of Chemistry and Pharmacy, Julius-Maximilians-University Würzburg, Röntgenring 11, 97070 Würzburg, Germany
| | - Malik Salman Haider
- Functional Polymer Materials, Chair for Chemical Technology of Material Synthesis, Institute for Functional Materials and Biofabrication, Department of Chemistry and Pharmacy, Julius-Maximilians-University Würzburg, Röntgenring 11, 97070 Würzburg, Germany
| | - Stefan Forster
- Functional Polymer Materials, Chair for Chemical Technology of Material Synthesis, Institute for Functional Materials and Biofabrication, Department of Chemistry and Pharmacy, Julius-Maximilians-University Würzburg, Röntgenring 11, 97070 Würzburg, Germany
| | - Chen Hu
- Functional Polymer Materials, Chair for Chemical Technology of Material Synthesis, Institute for Functional Materials and Biofabrication, Department of Chemistry and Pharmacy, Julius-Maximilians-University Würzburg, Röntgenring 11, 97070 Würzburg, Germany
| | - Robert Luxenhofer
- Functional Polymer Materials, Chair for Chemical Technology of Material Synthesis, Institute for Functional Materials and Biofabrication, Department of Chemistry and Pharmacy, Julius-Maximilians-University Würzburg, Röntgenring 11, 97070 Würzburg, Germany
- Soft Matter Chemistry, Department of Chemistry and Helsinki Institute of Sustainability Science, Faculty of Science, University of Helsinki, P.O. Box 55, 00014 Helsinki, Finland
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Ďorďovič V, Verbraeken B, Hogenboom R, Kereïche S, Matějíček P, Uchman M. Tuning of Thermoresponsivity of a Poly(2-alkyl-2-oxazoline) Block Copolymer by Interaction with Surface-Active and Chaotropic Metallacarborane Anion. Chem Asian J 2018; 13:838-845. [PMID: 29384259 DOI: 10.1002/asia.201701720] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Indexed: 11/08/2022]
Abstract
Thermoresponsive nanoparticles based on the interaction of metallacarboranes, bulky chaotropic and surface-active anions, and poly(2-alkyl-2-oxazoline) block copolymers were prepared. Recently, the great potential of metallacarboranes have been recognized in biomedicine and many delivery nanosystems have been proposed. However, none of them are thermoresponsive. Therefore, a thermoresponsive block copolymer, poly(2-methyl-2-oxazoline)-block-poly(2-n-propyl-2-oxazoline) (PMeOx-PPrOx), was synthesized to encapsulate metallacarboranes. Light scattering, NMR spectroscopy, isothermal titration calorimetry, and cryogenic TEM were used to characterize all solutions of the formed nanoparticles. The cloud-point temperature (TCP ) of the block copolymer was observed at 30 °C and polymeric micelles formed above this temperature. Cobalt bis(dicarbollide) anion (COSAN) interacts with both polymeric segments. Depending on the COSAN concentration, this affinity influenced the phase transition of the thermoresponsive PPrOx block. The TCP shifted to lower values at a lower COSAN content. At higher COSAN concentrations, the hybrid nanoparticles are fragmented into relatively small pieces. This system is also thermoresponsive, whereby an increase in temperature leads to higher polymer mobility and COSAN release.
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Affiliation(s)
- Vladimír Ďorďovič
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40, Prague 2, Czech Republic
| | - Bart Verbraeken
- Supramolecular Chemistry Group, Department of Organic and Macromolecular chemistry, Faculty of Sciences, Ghent University, Krijgslaan 281-S4, B-9000, Gent, Belgium
| | - Richard Hogenboom
- Supramolecular Chemistry Group, Department of Organic and Macromolecular chemistry, Faculty of Sciences, Ghent University, Krijgslaan 281-S4, B-9000, Gent, Belgium
| | - Sami Kereïche
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40, Prague 2, Czech Republic.,Institute of Biology and Medical Genetics, First Faculty of Medicine, Charles University and General University Hospital in Prague, Purkynie Ustav, Albertov 4, 12 801, Prague, Czech Republic
| | - Pavel Matějíček
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40, Prague 2, Czech Republic
| | - Mariusz Uchman
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40, Prague 2, Czech Republic
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Brendel JC, Schacher FH. Block Copolymer Self-Assembly in Solution-Quo Vadis? Chem Asian J 2018; 13:230-239. [DOI: 10.1002/asia.201701542] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Indexed: 11/06/2022]
Affiliation(s)
- Johannes C. Brendel
- Institute of Organic Chemistry and Macromolecular Chemistry; Friedrich-Schiller-University Jena; Humboldtstraße 10 07743 Jena Germany
- Jena Center for Soft Matter (JCSM); Friedrich-Schiller-University Jena; Philosophenweg 7 07743 Jena Germany
| | - Felix H. Schacher
- Institute of Organic Chemistry and Macromolecular Chemistry; Friedrich-Schiller-University 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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Kondo M, Takahashi R, Qiu XP, Winnik FM, Terao K, Sato T. Small-angle X-ray scattering from the concentrated bulk phase separated from an amphiphilic block-copolymer solution. Polym J 2017. [DOI: 10.1038/pj.2016.124] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Diehl C, Schlaad H. Polyoxazoline-based crystalline microspheres for carbohydrate-protein recognition. Chemistry 2010; 15:11469-72. [PMID: 19784968 DOI: 10.1002/chem.200901420] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Christina Diehl
- Department of Colloid Chemistry, Max Planck Institute of Colloids and Interfaces, Research Campus Golm, 14424 Potsdam, Germany
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Lobert M, Thijs H, Erdmenger T, Eckardt R, Ulbricht C, Hoogenboom R, Schubert U. Synthesis, Microwave-Assisted Polymerization, and Polymer Properties of Fluorinated 2-Phenyl-2-oxazolines: A Systematic Study. Chemistry 2008; 14:10396-407. [DOI: 10.1002/chem.200800671] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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