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Künzel-Tenner A, Kirsch C, Dolynchuk O, Rößner L, Wach M, Kempe F, von Unwerth T, Lederer A, Sebastiani D, Armbrüster M, Sommer M. Proton-Conducting Membranes from Polyphenylenes Containing Armstrong's Acid. Macromolecules 2024; 57:1238-1247. [PMID: 38370913 PMCID: PMC10870345 DOI: 10.1021/acs.macromol.3c02123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 01/10/2024] [Accepted: 01/16/2024] [Indexed: 02/20/2024]
Abstract
This study demonstrates the use of 1,5-naphthalenedisulfonic acid as a suitable building block for the efficient and economic preparation of alternating sulfonated polyphenylenes with high ion-exchange capacity (IEC) via Suzuki polycondensation. Key to large molar masses is the use of an all-meta-terphenyl comonomer instead of m-phenyl, the latter giving low molar masses and brittle materials. A protection/deprotection strategy for base-stable neopentyl sulfonates is successfully implemented to improve the solubility and molar mass of the polymers. Solution-based deprotection of polyphenylene neopentyl sulfonates at 150 °C in dimethylacetamide eliminates isopentylene quantitatively, resulting in membranes with high IEC (2.93 mequiv/g) and high proton conductivity (σ = 138 mS/cm). Water solubility of these copolymers with high IEC requires thermal cross-linking to prevent their dissolution under operating conditions. By balancing the temperature and time of the cross-linking process, water uptake can be restricted to 50 wt %, retaining an IEC of 2.33 mequiv/g and a conductivity of 85 mS/cm. Chemical stability is addressed by treatment of the membranes under Fenton's conditions and by considering barrier heights for desulfonation using density functional theory (DFT) calculations. The DFT results suggest that 1,5-disulfonated naphthalenes are at least as stable as sulfonated polyphenylenes against desulfonation.
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Affiliation(s)
- Andy Künzel-Tenner
- Institut
für Chemie, Polymerchemie, Technische
Universität Chemnitz, Straße der Nationen 62, 09111 Chemnitz, Germany
| | - Christoph Kirsch
- Institut
für Chemie, Theoretische Chemie, Martin-Luther-Universität Halle-Wittenberg, Von-Danckelmann-Platz 4, 06120 Halle, Germany
| | - Oleksandr Dolynchuk
- Experimental
Polymer Physics, Martin Luther University
Halle-Wittenberg, Von-Danckelmann-Platz
3, 06120 Halle, Germany
| | - Leonard Rößner
- Institut
für Chemie, Materialien für Innovative Energiekonzepte, Technische Universität Chemnitz, Straße der Nationen 62, 09111 Chemnitz, Germany
| | - Maxime Wach
- Institut
für Automobilforschung, Technische
Universität Chemnitz, Reichenhainer Straße 70, 09126 Chemnitz, Germany
| | - Fabian Kempe
- Institut
für Chemie, Polymerchemie, Technische
Universität Chemnitz, Straße der Nationen 62, 09111 Chemnitz, Germany
| | - Thomas von Unwerth
- Institut
für Automobilforschung, Technische
Universität Chemnitz, Reichenhainer Straße 70, 09126 Chemnitz, Germany
| | - Albena Lederer
- Leibniz
Institut für Polymerforschung Dresden e. V., Hohe Straße 6, 01069 Dresden, Germany
- Department
of Chemistry and Polymer Science, Stellenbosch
University, Private Bag
X1, 7602 Matieland, South Africa
| | - Daniel Sebastiani
- Institut
für Chemie, Theoretische Chemie, Martin-Luther-Universität Halle-Wittenberg, Von-Danckelmann-Platz 4, 06120 Halle, Germany
| | - Marc Armbrüster
- Institut
für Chemie, Materialien für Innovative Energiekonzepte, Technische Universität Chemnitz, Straße der Nationen 62, 09111 Chemnitz, Germany
| | - Michael Sommer
- Institut
für Chemie, Polymerchemie, Technische
Universität Chemnitz, Straße der Nationen 62, 09111 Chemnitz, Germany
- Forschungszentrum
MAIN, TU Chemnitz, Rosenbergstraße 6, 09126 Chemnitz, Germany
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Kiriy N, Özenler S, Voigt P, Kobsch O, Meier-Haack J, Arnhold K, Janke A, Muza UL, Geisler M, Lederer A, Pospiech D, Kiriy A, Voit B. Optimizing the Ion Conductivity and Mechanical Stability of Polymer Electrolyte Membranes Designed for Use in Lithium Ion Batteries: Combining Imidazolium-Containing Poly(ionic liquids) and Poly(propylene carbonate). Int J Mol Sci 2024; 25:1595. [PMID: 38338873 PMCID: PMC10855450 DOI: 10.3390/ijms25031595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 01/23/2024] [Accepted: 01/24/2024] [Indexed: 02/12/2024] Open
Abstract
State-of-the-art Li batteries suffer from serious safety hazards caused by the reactivity of lithium and the flammable nature of liquid electrolytes. This work develops highly efficient solid-state electrolytes consisting of imidazolium-containing polyionic liquids (PILs) and lithium bis(trifluoromethane sulfonyl)imide (LiTFSI). By employing PIL/LiTFSI electrolyte membranes blended with poly(propylene carbonate) (PPC), we addressed the problem of combining ionic conductivity and mechanical properties in one material. It was found that PPC acts as a mechanically reinforcing component that does not reduce but even enhances the ionic conductivity. While pure PILs are liquids, the tricomponent PPC/PIL/LiTFSI blends are rubber-like materials with a Young's modulus in the range of 100 MPa. The high mechanical strength of the material enables fabrication of mechanically robust free-standing membranes. The tricomponent PPC/PIL/LiTFSI membranes have an ionic conductivity of 10-6 S·cm-1 at room temperature, exhibiting conductivity that is two orders of magnitude greater than bicomponent PPC/LiTFSI membranes. At 60 °C, the conductivity of PPC/PIL/LiTFSI membranes increases to 10-5 S·cm-1 and further increases to 10-3 S·cm-1 in the presence of plasticizers. Cyclic voltammetry measurements reveal good electrochemical stability of the tricomponent PIL/PPC/LiTFSI membrane that potentially ranges from 0 to 4.5 V vs. Li/Li+. The mechanically reinforced membranes developed in this work are promising electrolytes for potential applications in solid-state batteries.
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Affiliation(s)
- Nataliya Kiriy
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Str. 6, 01069 Dresden, Germany
| | - Sezer Özenler
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Str. 6, 01069 Dresden, Germany
| | - Pauline Voigt
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Str. 6, 01069 Dresden, Germany
| | - Oliver Kobsch
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Str. 6, 01069 Dresden, Germany
| | - Jochen Meier-Haack
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Str. 6, 01069 Dresden, Germany
| | - Kerstin Arnhold
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Str. 6, 01069 Dresden, Germany
| | - Andreas Janke
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Str. 6, 01069 Dresden, Germany
| | - Upenyu L. Muza
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Str. 6, 01069 Dresden, Germany
| | - Martin Geisler
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Str. 6, 01069 Dresden, Germany
- Department Chemistry and Polymer Science, Stellenbosch University, Matieland 7600, South Africa
| | - Albena Lederer
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Str. 6, 01069 Dresden, Germany
- Department Chemistry and Polymer Science, Stellenbosch University, Matieland 7600, South Africa
| | - Doris Pospiech
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Str. 6, 01069 Dresden, Germany
| | - Anton Kiriy
- beeOLED GmbH, Niedersedlitzer Strasse 75c, 01257 Dresden, Germany
| | - Brigitte Voit
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Str. 6, 01069 Dresden, Germany
- Organische Chemie der Polymere, Technische Universität Dresden, 01062 Dresden, Germany
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Firdaus S, Boye S, Janke A, Friedel P, Janaszewska A, Appelhans D, Müller M, Klajnert-Maculewicz B, Voit B, Lederer A. Advancing Antiamyloidogenic Activity by Fine-Tuning Macromolecular Topology. Biomacromolecules 2023; 24:5797-5806. [PMID: 37939018 DOI: 10.1021/acs.biomac.3c00817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2023]
Abstract
Amyloid β peptide can aggregate into thin β-sheet fibrils or plaques deposited on the extracellular matrix, which is the hallmark of Alzheimer's disease. Multifunctional macromolecular structures play an important role in inhibiting the aggregate formation of amyloidogenic materials and thus are promising candidates with antiamyloidogenic characteristics for the development of next-generation therapeutics. In this study, we evaluate how small differences in the dendritic topology of these structures influence their antiamyloidogenic activity by the comparison of "perfectly dendritic" and "pseudodendritic" macromolecules, both decorated with mannose units. Their compactness, the position of surface units, and the size of glyco-architectures influence their antiamyloidogenic activity against Aβ 40, a major component of amyloid plaques. For the advanced analysis of the aggregation of the Aβ peptide, we introduce asymmetric flow field flow fractionation as a suitable method for the quantification of large and delicate structures. This alternative method focuses on the quantification of complex aggregates of Aβ 40 and glycodendrimer/glyco-pseudodendrimer over different time intervals of incubation, showing a good correlation to ThT assay and CD spectroscopy results. Kinetic studies of the second-generation glyco-pseudodendrimer revealed maximum inhibition of Aβ 40 aggregates, verified with atomic force microscopy. The second-generation glyco-pseudodendrimer shows the best antiamyloidogenic properties confirming that macromolecular conformation in combination with optimal functional group distribution is the key to its performance. These molecular properties were validated and confirmed by molecular dynamics simulation.
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Affiliation(s)
- Shamila Firdaus
- Leibniz-Institut für Polymerforschung Dresden, Hohe Straße 6, 01069 Dresden, Germany
| | - Susanne Boye
- Leibniz-Institut für Polymerforschung Dresden, Hohe Straße 6, 01069 Dresden, Germany
| | - Andreas Janke
- Leibniz-Institut für Polymerforschung Dresden, Hohe Straße 6, 01069 Dresden, Germany
| | - Peter Friedel
- Leibniz-Institut für Polymerforschung Dresden, Hohe Straße 6, 01069 Dresden, Germany
| | - Anna Janaszewska
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, 90-136 Łódź, Poland
| | - Dietmar Appelhans
- Leibniz-Institut für Polymerforschung Dresden, Hohe Straße 6, 01069 Dresden, Germany
| | - Martin Müller
- Leibniz-Institut für Polymerforschung Dresden, Hohe Straße 6, 01069 Dresden, Germany
- Technische Universität Dresden, 01062 Dresden, Germany
| | - Barbara Klajnert-Maculewicz
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, 90-136 Łódź, Poland
| | - Brigitte Voit
- Leibniz-Institut für Polymerforschung Dresden, Hohe Straße 6, 01069 Dresden, Germany
- Technische Universität Dresden, 01062 Dresden, Germany
| | - Albena Lederer
- Leibniz-Institut für Polymerforschung Dresden, Hohe Straße 6, 01069 Dresden, Germany
- Department Chemistry and Polymer Science, Stellenbosch University, 7602 Matieland, South Africa
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Wagner D, Wienerroither V, Scherrer M, Thalhammer M, Faschinger F, Lederer A, Hau HM, Sucher R, Kornprat P. Value of sarcopenia in the resection of colorectal liver metastases-a systematic review and meta-analysis. Front Oncol 2023; 13:1241561. [PMID: 37841447 PMCID: PMC10569723 DOI: 10.3389/fonc.2023.1241561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Accepted: 08/07/2023] [Indexed: 10/17/2023] Open
Abstract
Introduction Sarcopenia is defined as a decline in muscle function as well as muscle mass. Sarcopenia itself and sarcopenic obesity, defined as sarcopenia in obese patients, have been used as surrogates for a worse prognosis in colorectal cancer. This review aims to determine if there is evidence for sarcopenia as a prognostic parameter in colorectal liver metastases (CRLM). Methods PubMed, Embase, Cochrane Central, Web of Science, SCOPUS, and CINAHL databases were searched for articles that were selected in accordance with the PRISMA guidelines. The primary outcomes were overall survival (OS) and disease-free survival (DFS). A random effects meta-analysis was conducted. Results After eliminating duplicates and screening abstracts (n = 111), 949 studies were screened, and 33 publications met the inclusion criteria. Of them, 15 were selected after close paper review, and 10 were incorporated into the meta-analysis, which comprised 825 patients. No significant influence of sarcopenia for OS (odds ratio (OR), 2.802 (95% confidence interval (CI), 1.094-1.11); p = 0.4) or DFS (OR, 1.203 (95% CI, 1.162-1.208); p = 0.5) was found, although a trend was defined toward sarcopenia. Sarcopenia significantly influenced postoperative complication rates (OR, 7.905 (95% CI, 1.876-3.32); p = 0.001) in two studies where data were available. Conclusion Existing evidence on the influence of sarcopenia on postoperative OS as well as DFS in patients undergoing resection for CRLM exists. We were not able to confirm that sarcopenic patients have a significantly worse OS and DFS in our analysis, although a trend toward this hypothesis was visible. Sarcopenia seems to influence complication rates but prospective studies are needed.
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Muza UL, Ehrlich L, Pospiech D, Lederer A. High-Resolution Tracking of Multiple Distributions in Metallic Nanostructures: Advanced Analysis Was Carried Out with Novel 3D Correlation Thermal Field-Flow Fractionation. Anal Chem 2023. [PMID: 37441802 DOI: 10.1021/acs.analchem.3c01651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/15/2023]
Abstract
Multifunctional metallic nanostructures are essential in the architecture of modern technology. However, their characterization remains challenging due to their hybrid nature. In this study, we present a novel photoreduction-based protocol for augmenting the inherent properties of imidazolium-containing ionic polymers (IIP)s through orthogonal functionalization with gold nanoparticles (Au NPs) to produce IIP_Au NPs, as well as novel and advanced characterization via three-dimensional correlation thermal field-flow fractionation (3DCoThFFF). Coordination chemistry is applied to anchor Au3+ onto the nitrogen atom of the imidazolium rings, for subsequent photoreduction to Au NPs using UV irradiation. Thermal field-flow fractionation (ThFFF) and the localized surface plasmon resonance (LSPR) of Au NPs are both dependent on size, shape, and composition, thus synergistically co-opted herein to develop mutual correlation for the advanced analysis of 3D spectral data. With 3DCoThFFF, multiple sizes, shapes, compositions, and their respective distributions are synchronously correlated using time-resolved LSPR, as derived from multiple two-dimensional UV-vis spectra per unit ThFFF retention time. As such, higher resolutions and sensitivities are observed relative to those of regular ThFFF and batch UV-vis. In addition, 3DCoThFFF is shown to be highly suitable for monitoring and evaluating the thermostability and dynamics of the metallic nanostructures through the sequential correlation of UV-vis spectra measured under incremental ThFFF temperature gradients. Comparable sizes are measured for IIP and IIP_Au NPs. However, distinct elution profiles and UV-vis absorbances are recorded, thereby reaffirming the versatility of ThFFF as a robust tool for validating the successful functionalization of IIP with Au to produce IIP_Au NPs.
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Affiliation(s)
- Upenyu L Muza
- Leibniz-Institut für Polymerforschung Dresden e.V., Center Macromolecular Structure Analysis, Hohe Straße 6, 01069 Dresden, Germany
| | - Lisa Ehrlich
- Leibniz-Institut für Polymerforschung Dresden e.V., Institute Macromolecular Chemistry, Hohe Straße 6, 01069 Dresden, Germany
| | - Doris Pospiech
- Leibniz-Institut für Polymerforschung Dresden e.V., Institute Macromolecular Chemistry, Hohe Straße 6, 01069 Dresden, Germany
| | - Albena Lederer
- Leibniz-Institut für Polymerforschung Dresden e.V., Center Macromolecular Structure Analysis, Hohe Straße 6, 01069 Dresden, Germany
- Stellenbosch University, Department of Chemistry and Polymer Science, 7602 Matieland, South Africa
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Stamboliyska B, Belishki S, Haralampiev N, Yancheva D, Velcheva E, Penkova P, Lederer A, Fischer D. The Wall Paintings in the Russian Church St. Nicholas in Sofia: a Technological Study by Integrated Analytical Approach. C R Acad Bulg Sci 2023. [DOI: 10.7546/crabs.2023.03.06] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
Abstract
For the first time, wall paintings of 20th century Russian artists in Bulgaria were analysed by means of complementary analytical methods. Representative samples collected from the Russian church St. Nicholas in Sofia, decorated by the famous Russian artists Vasily Perminov, Michail Maletski and Nikolay Shelehov during different periods of time, were examined by means of micro-Raman spectroscopy, attenuated total reflectance-Fourier transform infrared (ATR-FTIR) spectroscopy and X-Ray fluorescence (XRF). The results of the study reveal that colourful palette was achieved by using various pigment mixtures of traditional and modern synthetic pigment as titanium white, barium white, calcite, chrome green, green earth, hematite, ultramarine, madder lake, carbon black, vermilion, Naples yellow. The analysis of the paint binders allow to conclude that Maletski and Shelehov have used egg tempera as painting technique, while Perminov has worked in two painting techniques - oil and egg tempera.
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Ehrlich L, Pospiech D, Muza UL, Lederer A, Muche J, Fischer D, Uhlmann P, Tzschöckell F, Muench S, Hager MD, Schubert US. Chloride Ion‐Containing Polymeric Ionic Liquids for Application as Electrolytes in Solid‐State Batteries. MACROMOL CHEM PHYS 2023. [DOI: 10.1002/macp.202300015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
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Palinske M, Muza UL, Moreno S, Appelhans D, Boye S, Schweins R, Lederer A. Potential of Small‐Angle Neutron Scattering for Evaluating Protein Locus within a Polymersome. MACROMOL CHEM PHYS 2023. [DOI: 10.1002/macp.202300014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
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Mutlu H, Lederer A. Shaping the Future of Macromolecular Chemistry: A Successful Path from the Start. MACROMOL CHEM PHYS 2023. [DOI: 10.1002/macp.202200434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Hatice Mutlu
- Soft Matter Synthesis Laboratory Karlsruhe Institute of Technology (KIT) Hermann‐von‐Helmholtz‐Platz 1 D‐76344 Eggenstein‐Leopoldshafen Germany
- Institute of Materials Science Mulhouse UMR 7361 CNRS/ University of Upper Alsace 15 rue Jean Starcky, 68057 Mulhouse Cedex France
| | - Albena Lederer
- Center Macromolecular Structure Analysis Leibniz‐Institut für Polymerforschung Dresden e.V. Hohe Str. 6 D‐01069 Dresden Germany
- Department of Chemistry and Polymer Science Stellenbosch University Matieland 7602 South Africa
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Palinske M, Muza UL, Moreno S, Appelhans D, Boye S, Schweins R, Lederer A. Potential of Small‐Angle Neutron Scattering for Evaluating Protein Locus within a Polymersome. MACROMOL CHEM PHYS 2023. [DOI: 10.1002/macp.202370002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Boye S, Muza U, Geisler M, Lederer A. Field-Flow Fractionation: Extended Frontiers to Supramolecular and Complex Polymer Materials. LCGC Eur 2022. [DOI: 10.56530/lcgc.eu.lk4689u6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
In this extended special feature to celebrate the 35th anniversary edition of LCGC Europe, leading figures from the separation science community explore contemporary trends in separation science and identify possible future developments.
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Affiliation(s)
- Susanne Boye
- Leibniz- Institut für Polymerforschung Dresden e.V
| | - Upenyu Muza
- Leibniz- Institut für Polymerforschung Dresden e.V
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12
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Ehrlich L, Pospiech D, Muza UL, Lederer A, Muche J, Fischer D, Uhlmann P, Tzschöckell F, Muench S, Hager MD, Schubert US. Chloride Ion‐Containing Polymeric Ionic Liquids for Application as Electrolytes in Solid‐State Batteries. MACROMOL CHEM PHYS 2022. [DOI: 10.1002/macp.202200317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Lisa Ehrlich
- Leibniz‐Institut für Polymerforschung Dresden e.V. Hohe Straße 6 01069 Dresden Germany
- Organic Chemistry of Polymers Technische Universität Dresden 01062 Dresden Germany
| | - Doris Pospiech
- Leibniz‐Institut für Polymerforschung Dresden e.V. Hohe Straße 6 01069 Dresden Germany
| | - Upenyu L. Muza
- Leibniz‐Institut für Polymerforschung Dresden e.V. Hohe Straße 6 01069 Dresden Germany
| | - Albena Lederer
- Leibniz‐Institut für Polymerforschung Dresden e.V. Hohe Straße 6 01069 Dresden Germany
- Department Chemistry and Polymer Science Stellenbosch University Matieland 7602 South Africa
| | - Julia Muche
- Leibniz‐Institut für Polymerforschung Dresden e.V. Hohe Straße 6 01069 Dresden Germany
| | - Dieter Fischer
- Leibniz‐Institut für Polymerforschung Dresden e.V. Hohe Straße 6 01069 Dresden Germany
| | - Petra Uhlmann
- Leibniz‐Institut für Polymerforschung Dresden e.V. Hohe Straße 6 01069 Dresden Germany
| | - Felix Tzschöckell
- Lehrstuhl für Organische und Makromolekulare Chemie (IOMC) Friedrich‐Schiller‐Universität Jena Humboldtstraße 10 07743 Jena Germany
- Center for Energy and Environmental Chemistry Jena (CEEC Jena) Friedrich‐Schiller‐Universität Jena Philosophenweg 7a 07743 Jena Germany
| | - Simon Muench
- Lehrstuhl für Organische und Makromolekulare Chemie (IOMC) Friedrich‐Schiller‐Universität Jena Humboldtstraße 10 07743 Jena Germany
- Center for Energy and Environmental Chemistry Jena (CEEC Jena) Friedrich‐Schiller‐Universität Jena Philosophenweg 7a 07743 Jena Germany
| | - Martin D. Hager
- Lehrstuhl für Organische und Makromolekulare Chemie (IOMC) Friedrich‐Schiller‐Universität Jena Humboldtstraße 10 07743 Jena Germany
- Center for Energy and Environmental Chemistry Jena (CEEC Jena) Friedrich‐Schiller‐Universität Jena Philosophenweg 7a 07743 Jena Germany
| | - Ulrich S. Schubert
- Lehrstuhl für Organische und Makromolekulare Chemie (IOMC) Friedrich‐Schiller‐Universität Jena Humboldtstraße 10 07743 Jena Germany
- Center for Energy and Environmental Chemistry Jena (CEEC Jena) Friedrich‐Schiller‐Universität Jena Philosophenweg 7a 07743 Jena Germany
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Palinske M, Muza UL, Moreno S, Appelhans D, Boye S, Schweins R, Lederer A. The Potential of Small‐Angle Neutron Scattering for Evaluating Protein Locus within a Polymersome. MACROMOL CHEM PHYS 2022. [DOI: 10.1002/macp.202200300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Max Palinske
- Leibniz‐Institut für Polymerforschung Dresden e.V. Hohe Str. 6 1069 Dresden Germany
- Technische Universität Dresden School of Science 01062 Dresden Germany
| | - Upenyu L. Muza
- Leibniz‐Institut für Polymerforschung Dresden e.V. Hohe Str. 6 1069 Dresden Germany
| | - Silvia Moreno
- Leibniz‐Institut für Polymerforschung Dresden e.V. Hohe Str. 6 1069 Dresden Germany
| | - Dietmar Appelhans
- Leibniz‐Institut für Polymerforschung Dresden e.V. Hohe Str. 6 1069 Dresden Germany
| | - Susanne Boye
- Leibniz‐Institut für Polymerforschung Dresden e.V. Hohe Str. 6 1069 Dresden Germany
| | - Ralf Schweins
- Institut Laue‐Langevin DS / LSS, CS 20 156, 71 Avenue des Martyrs Grenoble 38042 France
| | - Albena Lederer
- Leibniz‐Institut für Polymerforschung Dresden e.V. Hohe Str. 6 1069 Dresden Germany
- Department of Chemistry and Polymer Science Stellenbosch University Private Bag X1 Matieland 7602 South Africa
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Knapp M, Moore T, Lockhart J, Lederer A, Kimball M. Restaurant-based Healthy Eating Program and Other Factors Influence Customer Food Choices in New Orleans, Louisiana. J Acad Nutr Diet 2022. [DOI: 10.1016/j.jand.2022.06.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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15
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le Roux WH, Matthews M, Lederer A, van Reenen AJ, Malgas-Enus R. First report of Schiff-base nickel nanoparticle-catalyzed oligomerization and polymerization of norbornene. J Catal 2022. [DOI: 10.1016/j.jcat.2021.11.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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16
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Kang Y, Zhao X, Han X, Ji X, Chen Q, Pasch H, Lederer A, Liu Y. Conformation and persistence length of chitosan in aqueous solutions of different ionic strengths via asymmetric flow field-flow fractionation. Carbohydr Polym 2021; 271:118402. [PMID: 34364548 DOI: 10.1016/j.carbpol.2021.118402] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 06/01/2021] [Accepted: 07/01/2021] [Indexed: 12/24/2022]
Abstract
Conformation of chitosan in acidic aqueous solutions is strongly influenced by ionic strength, but the conventional employed size exclusion chromatography is limited to high ionic strength. Here we show that conformation of chitosan in acetate buffer down to millimolar ionic strength can be studied via asymmetric flow field-flow fractionation (AF4), where the separation is governed by the diffusion properties of the chitosan molecules and assisted by the electrostatic repulsion of the polyelectrolyte from the channel membrane. The size of chitosan decreases with ionic strength due to increasing screening of the polyelectrolyte effect. The persistence length of chitosan in the solutions, obtained by fitting the conformation plot by the wormlike chain model, decreases linearly with the Debye screening length from 44.5 nm at a salt concentration of 1.25 mM dominated by the electrostatic contribution to 8.6 nm in 800 mM acetate buffer close to its intrinsic persistence length of 7.7 nm.
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Affiliation(s)
- Yu Kang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China; University of Science and Technology of China, Hefei 230026, China
| | - Xinyue Zhao
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China; University of Science and Technology of China, Hefei 230026, China
| | - Xintong Han
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Xiangling Ji
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China; University of Science and Technology of China, Hefei 230026, China
| | - Quan Chen
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China; University of Science and Technology of China, Hefei 230026, China
| | - Harald Pasch
- Department of Chemistry and Polymer Science, University of Stellenbosch, Private Bag X1, 7602 Matieland, South Africa
| | - Albena Lederer
- Department of Chemistry and Polymer Science, University of Stellenbosch, Private Bag X1, 7602 Matieland, South Africa; Leibniz-Institut für Polymerforschung Dresden e.V., 01069 Dresden, Germany
| | - Yonggang Liu
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China.
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17
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Kaupbayeva B, Murata H, Matyjaszewski K, Russell AJ, Boye S, Lederer A. A comprehensive analysis in one run - in-depth conformation studies of protein-polymer chimeras by asymmetrical flow field-flow fractionation. Chem Sci 2021; 12:13848-13856. [PMID: 34760170 PMCID: PMC8549772 DOI: 10.1039/d1sc03033g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 09/24/2021] [Indexed: 01/04/2023] Open
Abstract
Polymer-based protein engineering has enabled the synthesis of a variety of protein-polymer conjugates that are widely applicable in therapeutic, diagnostic and biotechnological industries. Accurate characterizations of physical-chemical properties, in particular, molar masses, sizes, composition and their dispersities are critical parameters that determine the functionality and conformation of protein-polymer conjugates and are important for creating reproducible manufacturing processes. Most of the current characterization techniques suffer from fundamental limitations and do not provide an accurate understanding of a sample's true nature. In this paper, we demonstrate the advantage of asymmetrical flow field-flow fractionation (AF4) coupled with multiple detectors for the characterization of a library of complex, zwitterionic and neutral protein-polymer conjugates. This method allows for determination of intrinsic physical properties of protein-polymer chimeras from a single, rapid measurement.
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Affiliation(s)
- Bibifatima Kaupbayeva
- Department of Biological Sciences, Carnegie Mellon University 4400 Fifth Avenue Pittsburgh PA 15213 USA
- Center for Polymer-Based Protein Engineering, Carnegie Mellon University 5000 Forbes Avenue Pittsburgh PA 15213 USA
| | - Hironobu Murata
- Center for Polymer-Based Protein Engineering, Carnegie Mellon University 5000 Forbes Avenue Pittsburgh PA 15213 USA
| | - Krzysztof Matyjaszewski
- Center for Polymer-Based Protein Engineering, Carnegie Mellon University 5000 Forbes Avenue Pittsburgh PA 15213 USA
- Department of Chemistry, Carnegie Mellon University 4400 Fifth Avenue Pittsburgh PA 15213 USA
| | - Alan J Russell
- Department of Biological Sciences, Carnegie Mellon University 4400 Fifth Avenue Pittsburgh PA 15213 USA
- Center for Polymer-Based Protein Engineering, Carnegie Mellon University 5000 Forbes Avenue Pittsburgh PA 15213 USA
- Department of Chemistry, Carnegie Mellon University 4400 Fifth Avenue Pittsburgh PA 15213 USA
- Department of Chemical Engineering, Carnegie Mellon University 5000 Forbes Avenue Pittsburgh PA 15213 USA
| | - Susanne Boye
- Center Macromolecular Structure Analysis, Leibniz-Institut für Polymerforschung Dresden e.V. Hohe Straße 6 Dresden 01069 Germany
| | - Albena Lederer
- Center Macromolecular Structure Analysis, Leibniz-Institut für Polymerforschung Dresden e.V. Hohe Straße 6 Dresden 01069 Germany
- Stellenbosch University, Department of Chemistry and Polymer Science Private Bag X1 Matieland 7602 South Africa
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18
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Moreno S, Boye S, Ajeilat HGA, Michen S, Tietze S, Voit B, Lederer A, Temme A, Appelhans D. Multivalent Protein-Loaded pH-Stable Polymersomes: First Step toward Protein Targeted Therapeutics. Macromol Biosci 2021; 21:e2100102. [PMID: 34355506 DOI: 10.1002/mabi.202100102] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 07/22/2021] [Indexed: 12/19/2022]
Abstract
Synthetic platforms for mimicking artificial organelles or for designing multivalent protein therapeutics for targeting cell surface, extracellular matrix, and tissues are in the focus of this study. Furthermore, the availability of a multi-functionalized and stimuli-responsive carrier system is required that can be used for sequential in situ and/or post loading of different proteins combined with post-functionalization steps. Until now, polymersomes exhibit excellent key characteristics to fulfill those requirements, which allow specific transport of proteins and the integration of proteins in different locations of polymeric vesicles. Herein, different approaches to fabricate multivalent protein-loaded, pH-responsive, and pH-stable polymersomes are shown, where a combination of therapeutic action and targeting can be achieved, by first choosing two model proteins such as human serum albumin and avidin. Validation of the molecular parameters of the multivalent biohybrids is performed by dynamic light scattering, cryo-TEM, fluorescence spectroscopy, and asymmetrical flow-field flow fractionation combined with light scattering techniques. To demonstrate targeting functions of protein-loaded polymersomes, avidin post-functionalized polymersomes are used for the molecular recognition of biotinylated cell surface receptors. These versatile protein-loaded polymersomes present new opportunities for designing sophisticated biomolecular nanoobjects in the field of (extracellular matrix) protein therapeutics.
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Affiliation(s)
- Silvia Moreno
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, Dresden, 01069, Germany
| | - Susanne Boye
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, Dresden, 01069, Germany
| | | | - Susanne Michen
- Department of Neurosurgery, Section Experimental Neurosurgery/Tumor Immunology, University Hospital Carl Gustav Carus, TU Dresden, Dresden, 01307, Germany
| | - Stefanie Tietze
- Department of Neurosurgery, Section Experimental Neurosurgery/Tumor Immunology, University Hospital Carl Gustav Carus, TU Dresden, Dresden, 01307, Germany
| | - Brigitte Voit
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, Dresden, 01069, Germany.,Faculty of Chemistry, Technische Universität Dresden, Dresden, 01062, Germany
| | - Albena Lederer
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, Dresden, 01069, Germany.,Department of Chemistry and Polymer Science, Stellenbosch University, Private Bag X1, Matieland, 7602, South Africa
| | - Achim Temme
- Department of Neurosurgery, Section Experimental Neurosurgery/Tumor Immunology, University Hospital Carl Gustav Carus, TU Dresden, Dresden, 01307, Germany.,German Cancer Consortium (DKTK), partner site Dresden, Germany; German Cancer Research Center (DKFZ), Heidelberg, Germany, National Center for Tumor Diseases (NCT), Fetscherstraße 74, Dresden, 01307, Germany
| | - Dietmar Appelhans
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, Dresden, 01069, Germany
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19
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Wang X, Moreno S, Boye S, Wang P, Liu X, Lederer A, Voit B, Appelhans D. Artificial Organelles with Orthogonal-Responsive Membranes for Protocell Systems: Probing the Intrinsic and Sequential Docking and Diffusion of Cargo into Two Coexisting Avidin-Polymersomes. Adv Sci (Weinh) 2021; 8:e2004263. [PMID: 34105298 PMCID: PMC8188225 DOI: 10.1002/advs.202004263] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 02/07/2021] [Indexed: 05/19/2023]
Abstract
The challenge of effective integration and use of artificial organelles with orthogonal-responsive membranes and their communication in eukaryotic protocells is to understand the intrinsic membrane characteristics. Here, a novel photo-crosslinked and pH-responsive polymersome (Psome B) with 2-(N,N'-diisopropylamino)ethyl units in the membrane and its respective Avidin-Psome B hybrids, are reported as good candidates for artificial organelles. Biotinylated (macro)molecules are able to dock and diffuse into Avidin-Psome B to carry out biological activity in a pH- and size-dependent manner. Combined with another polymersome (Psome A) with 2-(N,N'-diethylamino)ethyl units in the membrane, two different pH-responsive polymersomes for mimicking different organelles in one protocell system are reported. The different intrinsic docking and diffusion processes of cargo (macro)molecules through the membranes of coexisting Psome A and B are pH-dependent as confirmed using pH titration-dynamic light scattering (DLS). Psome A and B show separated "open", "closing/opening", and "closed" states at various pH ranges with different membrane permeability. The results pave the way for the construction of multicompartmentalized protocells with controlled communications between different artificial organelles.
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Affiliation(s)
- Xueyi Wang
- Leibniz‐Institut für Polymerforschung Dresden e.V.Hohe Straße 6Dresden01069Germany
- Organic Chemistry of PolymersTechnische Universität DresdenDresden01062Germany
| | - Silvia Moreno
- Leibniz‐Institut für Polymerforschung Dresden e.V.Hohe Straße 6Dresden01069Germany
| | - Susanne Boye
- Leibniz‐Institut für Polymerforschung Dresden e.V.Hohe Straße 6Dresden01069Germany
| | - Peng Wang
- Leibniz‐Institut für Polymerforschung Dresden e.V.Hohe Straße 6Dresden01069Germany
- Organic Chemistry of PolymersTechnische Universität DresdenDresden01062Germany
| | - Xiaoling Liu
- College of Polymer Science and EngineeringSichuan UniversityChengdu610065P. R. China
| | - Albena Lederer
- Leibniz‐Institut für Polymerforschung Dresden e.V.Hohe Straße 6Dresden01069Germany
- Department of Chemistry and Polymer ScienceStellenbosch UniversityMatieland7602South Africa
| | - Brigitte Voit
- Leibniz‐Institut für Polymerforschung Dresden e.V.Hohe Straße 6Dresden01069Germany
- Organic Chemistry of PolymersTechnische Universität DresdenDresden01062Germany
| | - Dietmar Appelhans
- Leibniz‐Institut für Polymerforschung Dresden e.V.Hohe Straße 6Dresden01069Germany
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20
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Kaupbayeva B, Boye S, Munasinghe A, Murata H, Matyjaszewski K, Lederer A, Colina CM, Russell AJ. Molecular Dynamics-Guided Design of a Functional Protein-ATRP Conjugate That Eliminates Protein-Protein Interactions. Bioconjug Chem 2021; 32:821-832. [PMID: 33784809 DOI: 10.1021/acs.bioconjchem.1c00098] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Even the most advanced protein-polymer conjugate therapeutics do not eliminate antibody-protein and receptor-protein recognition. Next-generation bioconjugate drugs will need to replace stochastic selection with rational design to select desirable levels of protein-protein interaction while retaining function. The "Holy Grail" for rational design would be to generate functional enzymes that are fully catalytic with small molecule substrates while eliminating interaction between the protein surface and larger molecules. Using chymotrypsin, an important enzyme that is used to treat pancreatic insufficiency, we have designed a series of molecular chimeras with varied grafting densities and shapes. Guided by molecular dynamic simulations and next-generation molecular chimera characterization with asymmetric flow field-flow fractionation chromatography, we grew linear, branched, and comb-shaped architectures from the surface of the protein by atom-transfer radical polymerization. Comb-shaped polymers, grafted from the surface of chymotrypsin, completely prevented enzyme inhibition with protein inhibitors without sacrificing the ability of the enzyme to catalyze the hydrolysis of a peptide substrate. Asymmetric flow field-flow fractionation coupled with multiangle laser light scattering including dynamic light scattering showed that nanoarmor designed with comb-shaped polymers was particularly compact and spherical. The polymer structure significantly increased protein stability and reduced protein-protein interactions. Atomistic molecular dynamic simulations predicted that a dense nanoarmor with long-armed comb-shaped polymer would act as an almost perfect molecular sieve to filter large ligands from substrates. Surprisingly, a conjugate that was composed of 99% polymer was needed before the elimination of protein-protein interactions.
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Affiliation(s)
- Bibifatima Kaupbayeva
- Department of Biological Sciences, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States.,Center for Polymer-Based Protein Engineering, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Susanne Boye
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, Dresden 01069, Germany
| | - Aravinda Munasinghe
- Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States.,George & Josephine Butler Polymer Research Laboratory, University of Florida, Gainesville, Florida 32611, United States
| | - Hironobu Murata
- Center for Polymer-Based Protein Engineering, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Krzysztof Matyjaszewski
- Center for Polymer-Based Protein Engineering, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, Pennsylvania 15213, United States.,Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Albena Lederer
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, Dresden 01069, Germany.,Technische Universität Dresden, 01062, Dresden, Germany.,Stellenbosch University, Department of Chemistry and Polymer Science, Private Bag X1, Matieland 7602, South Africa
| | - Coray M Colina
- Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States.,George & Josephine Butler Polymer Research Laboratory, University of Florida, Gainesville, Florida 32611, United States.,Department of Materials Science and Engineering, University of Florida, Gainesville, Florida 32611, United States
| | - Alan J Russell
- Department of Biological Sciences, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States.,Center for Polymer-Based Protein Engineering, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, Pennsylvania 15213, United States.,Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States.,Department of Chemical Engineering, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, Pennsylvania 15213, United States
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21
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Geervliet E, Moreno S, Baiamonte L, Booijink R, Boye S, Wang P, Voit B, Lederer A, Appelhans D, Bansal R. Matrix metalloproteinase-1 decorated polymersomes, a surface-active extracellular matrix therapeutic, potentiates collagen degradation and attenuates early liver fibrosis. J Control Release 2021; 332:594-607. [PMID: 33737203 DOI: 10.1016/j.jconrel.2021.03.016] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 03/08/2021] [Accepted: 03/12/2021] [Indexed: 02/07/2023]
Abstract
Liver fibrosis affects millions of people worldwide and is rising vastly over the past decades. With no viable therapies available, liver transplantation is the only curative treatment for advanced diseased patients. Excessive accumulation of aberrant extracellular matrix (ECM) proteins, mostly collagens, produced by activated hepatic stellate cells (HSCs), is a hallmark of liver fibrosis. Several studies have suggested an inverse correlation between collagen-I degrading matrix metalloproteinase-1 (MMP-1) serum levels and liver fibrosis progression highlighting reduced MMP-1 levels are associated with poor disease prognosis in patients with liver fibrosis. We hypothesized that delivery of MMP-1 might potentiate collagen degradation and attenuate fibrosis development. In this study, we report a novel approach for the delivery of MMP-1 using MMP-1 decorated polymersomes (MMPsomes), as a surface-active vesicle-based ECM therapeutic, for the treatment of liver fibrosis. The storage-stable and enzymatically active MMPsomes were fabricated by a post-loading of Psomes with MMP-1. MMPsomes were extensively characterized for the physicochemical properties, MMP-1 surface localization, stability, enzymatic activity, and biological effects. Dose-dependent effects of MMP-1, and effects of MMPsomes versus MMP-1, empty polymersomes (Psomes) and MMP-1 + Psomes on gene and protein expression of collagen-I, MMP-1/TIMP-1 ratio, migration and cell viability were examined in TGFβ-activated human HSCs. Finally, the therapeutic effects of MMPsomes, compared to MMP-1, were evaluated in vivo in carbon-tetrachloride (CCl4)-induced early liver fibrosis mouse model. MMPsomes exhibited favorable physicochemical properties, MMP-1 surface localization and improved therapeutic efficacy in TGFβ-activated human HSCs in vitro. In CCl4-induced early liver fibrosis mouse model, MMPsomes inhibited intra-hepatic collagen-I (ECM marker, indicating early liver fibrosis) and F4/80 (marker for macrophages, indicating liver inflammation) expression. In conclusion, our results demonstrate an innovative approach of MMP-1 delivery, using surface-decorated MMPsomes, for alleviating liver fibrosis.
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Affiliation(s)
- Eline Geervliet
- Translational Liver Research, Department of Medical Cell Biophysics, Technical Medical Centre, Faculty of Science and Technology, University of Twente, Drienerlolaan 5, 7522 NB Enschede, the Netherlands
| | - Silvia Moreno
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, 01069 Dresden, Germany
| | - Luca Baiamonte
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, 01069 Dresden, Germany
| | - Richell Booijink
- Translational Liver Research, Department of Medical Cell Biophysics, Technical Medical Centre, Faculty of Science and Technology, University of Twente, Drienerlolaan 5, 7522 NB Enschede, the Netherlands
| | - Susanne Boye
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, 01069 Dresden, Germany
| | - Peng Wang
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, 01069 Dresden, Germany; Technische Universität Dresden, Organic Chemistry of Polymers, 01062 Dresden, Germany
| | - Brigitte Voit
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, 01069 Dresden, Germany; Technische Universität Dresden, Organic Chemistry of Polymers, 01062 Dresden, Germany
| | - Albena Lederer
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, 01069 Dresden, Germany; Department of Chemistry and Polymer Science, Stellenbosch University, Matieland 7602, South Africa.
| | - Dietmar Appelhans
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, 01069 Dresden, Germany.
| | - Ruchi Bansal
- Translational Liver Research, Department of Medical Cell Biophysics, Technical Medical Centre, Faculty of Science and Technology, University of Twente, Drienerlolaan 5, 7522 NB Enschede, the Netherlands.
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22
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Muza UL, Boye S, Lederer A. Dealing with the complexity of conjugated and self‐assembled polymer‐nanostructures using field‐flow fractionation. ACTA ACUST UNITED AC 2021. [DOI: 10.1002/ansa.202100008] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Upenyu L. Muza
- Center Macromolecular Structure Analysis Leibniz‐Institut für Polymerforschung Dresden Dresden Germany
| | - Susanne Boye
- Center Macromolecular Structure Analysis Leibniz‐Institut für Polymerforschung Dresden Dresden Germany
| | - Albena Lederer
- Center Macromolecular Structure Analysis Leibniz‐Institut für Polymerforschung Dresden Dresden Germany
- Department of Chemistry and Polymer Science Stellenbosch University Matieland South Africa
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23
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Lathwal S, Yerneni SS, Boye S, Muza UL, Takahashi S, Sugimoto N, Lederer A, Das SR, Campbell PG, Matyjaszewski K. Engineering exosome polymer hybrids by atom transfer radical polymerization. Proc Natl Acad Sci U S A 2021; 118:e2020241118. [PMID: 33384328 PMCID: PMC7812758 DOI: 10.1073/pnas.2020241118] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Exosomes are emerging as ideal drug delivery vehicles due to their biological origin and ability to transfer cargo between cells. However, rapid clearance of exogenous exosomes from the circulation as well as aggregation of exosomes and shedding of surface proteins during storage limit their clinical translation. Here, we demonstrate highly controlled and reversible functionalization of exosome surfaces with well-defined polymers that modulate the exosome's physiochemical and pharmacokinetic properties. Using cholesterol-modified DNA tethers and complementary DNA block copolymers, exosome surfaces were engineered with different biocompatible polymers. Additionally, polymers were directly grafted from the exosome surface using biocompatible photo-mediated atom transfer radical polymerization (ATRP). These exosome polymer hybrids (EPHs) exhibited enhanced stability under various storage conditions and in the presence of proteolytic enzymes. Tuning of the polymer length and surface loading allowed precise control over exosome surface interactions, cellular uptake, and preserved bioactivity. EPHs show fourfold higher blood circulation time without altering tissue distribution profiles. Our results highlight the potential of precise nanoengineering of exosomes toward developing advanced drug and therapeutic delivery systems using modern ATRP methods.
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Affiliation(s)
- Sushil Lathwal
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, PA 15213
- The Center for Nucleic Acids Science and Technology, Carnegie Mellon University, Pittsburgh, PA 15213
| | | | - Susanne Boye
- Polymer Separation Group, Leibniz-Institut für Polymerforschung Dresden e.V., 01069 Dresden, Germany
| | - Upenyu L Muza
- Department of Chemistry and Polymer Science, Stellenbosch University, Matieland, 7602 Stellenbosch, South Africa
| | - Shuntaro Takahashi
- Frontier Institute for Biomolecular Engineering Research, Konan University, 650-0047 Kobe, Japan
| | - Naoki Sugimoto
- Frontier Institute for Biomolecular Engineering Research, Konan University, 650-0047 Kobe, Japan
- Graduate School of Frontiers of Innovative Research in Science and Technology, Konan University, 650-0047 Kobe, Japan
| | - Albena Lederer
- Polymer Separation Group, Leibniz-Institut für Polymerforschung Dresden e.V., 01069 Dresden, Germany
- Department of Chemistry and Polymer Science, Stellenbosch University, Matieland, 7602 Stellenbosch, South Africa
- Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, 01062 Dresden, Germany
| | - Subha R Das
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, PA 15213;
- The Center for Nucleic Acids Science and Technology, Carnegie Mellon University, Pittsburgh, PA 15213
| | - Phil G Campbell
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213;
- Engineering Research Accelerator, Carnegie Mellon University, Pittsburgh, PA 15213
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24
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Engelke J, Boye S, Tuten BT, Barner L, Barner-Kowollik C, Lederer A. Critical Assessment of the Application of Multidetection SEC and AF4 for the Separation of Single-Chain Nanoparticles. ACS Macro Lett 2020; 9:1569-1575. [PMID: 35617058 DOI: 10.1021/acsmacrolett.0c00519] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The intramolecular chain collapse of linear precursors with systematic variation of molar mass and ligation group density (5, 15, and 30 mol %) into single-chain nanoparticles (SCNPs) was studied by two different separation approaches. The efficiency of size exclusion chromatography with quadruple detection (SEC-D4) was compared to asymmetrical field flow fractionation hyphenated to quintuple detection (AF4-D5) in organic solvent. The application of the unique combination of advanced detection to different separation principles opens up the opportunity to critically evaluate the determination of molar masses and different types of radii for an in-depth understanding of the structural properties affected by the internal folding process. This is achieved by a detailed comparison of assets, drawbacks, and limitations of these approaches based on the systematical screening of different chain lengths and sizes of the precursors and the SCNPs. Furthermore, an alternative strategy for quantitative determination of intramolecular ligation density by a combination of AF4 and UV detection is introduced.
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Affiliation(s)
- Johanna Engelke
- Leibniz-Institut für Polymerforschung Dresden, Hohe Str. 6, 01069 Dresden, Germany
- School of Science, Technische Universität Dresden, 01062 Dresden, Germany
- School of Chemistry and Physics, Queensland University of Technology, 4000 Brisbane, Australia
| | - Susanne Boye
- Leibniz-Institut für Polymerforschung Dresden, Hohe Str. 6, 01069 Dresden, Germany
| | - Bryan T. Tuten
- School of Chemistry and Physics, Queensland University of Technology, 4000 Brisbane, Australia
- Centre for Materials Science, Queensland University of Technology, 2 George Street, Brisbane, QLD 4000, Australia
| | - Leonie Barner
- School of Chemistry and Physics, Queensland University of Technology, 4000 Brisbane, Australia
- Centre for Materials Science, Queensland University of Technology, 2 George Street, Brisbane, QLD 4000, Australia
- Institute for Future Environments, Queensland University of Technology, Brisbane, QLD 4000, Australia
| | - Christopher Barner-Kowollik
- School of Chemistry and Physics, Queensland University of Technology, 4000 Brisbane, Australia
- Centre for Materials Science, Queensland University of Technology, 2 George Street, Brisbane, QLD 4000, Australia
| | - Albena Lederer
- Leibniz-Institut für Polymerforschung Dresden, Hohe Str. 6, 01069 Dresden, Germany
- School of Science, Technische Universität Dresden, 01062 Dresden, Germany
- Department of Chemistry and Polymer Science, Stellenbosch University, Private Bag X1, Matieland 7602, South Africa
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25
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Moreno S, Boye S, Lederer A, Falanga A, Galdiero S, Lecommandoux S, Voit B, Appelhans D. Avidin Localizations in pH-Responsive Polymersomes for Probing the Docking of Biotinylated (Macro)molecules in the Membrane and Lumen. Biomacromolecules 2020; 21:5162-5172. [PMID: 33180486 DOI: 10.1021/acs.biomac.0c01276] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
To mimic organelles and cells and to construct next-generation therapeutics, asymmetric functionalization and location of proteins for artificial vesicles is thoroughly needed to emphasize the complex interplay of biological units and systems through spatially separated and spatiotemporal controlled actions, release, and communications. For the challenge of vesicle (= polymersome) construction, the membrane permeability and the location of the cargo are important key characteristics that determine their potential applications. Herein, an in situ and post loading process of avidin in pH-responsive and photo-cross-linked polymersomes is developed and characterized. First, loading efficiency, main location (inside, lumen, outside), and release of avidin under different conditions have been validated, including the pH-stable presence of avidin in polymersomes' membrane outside and inside. This advantageous approach allows us to selectively functionalize the outer and inner membranes as well as the lumen with several bio(macro)molecules, generally suited for the construction of asymmetrically functionalized artificial organelles. In addition, a fluorescence resonance energy transfer (FRET) effect was used to study the permeability or uptake of the polymersome membrane against a broad range of biotinylated (macro)molecules (different typology, sizes, and shapes) under different conditions.
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Affiliation(s)
- Silvia Moreno
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, 01069 Dresden, Germany
| | - Susanne Boye
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, 01069 Dresden, Germany
| | - Albena Lederer
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, 01069 Dresden, Germany.,School of Science, Technische Universität Dresden, 01062 Dresden, Germany.,Department of Chemistry and Polymer Science, Stellenbosch University, Private Bag X1, Matieland 7602, South Africa
| | - Annarita Falanga
- Department of Pharmacy, CiRPEB, University of Naples "Federico II", Via Mezzocannone 16, 80134 Naples, Italy
| | - Stefania Galdiero
- Department of Pharmacy, CiRPEB, University of Naples "Federico II", Via Mezzocannone 16, 80134 Naples, Italy
| | - Sébastien Lecommandoux
- Universite de Bordeaux, ENSCPB, 16 Avenue Pey Berland, 33607 Pessac, Cedex, France.,CNRS, Laboratoire de Chimie des Polymeres Organiques, UMR, 5629 Pessac, France
| | - Brigitte Voit
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, 01069 Dresden, Germany.,Organic Chemistry of Polymers, Technische Universität Dresden, 01062 Dresden, Germany
| | - Dietmar Appelhans
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, 01069 Dresden, Germany
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26
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Plüschke L, Ndiripo A, Mundil R, Merna J, Pasch H, Lederer A. Fractionation of chain walking polyethylene and elucidation of branching, conformation and molar mass distributions. International Journal of Polymer Analysis and Characterization 2020. [DOI: 10.1080/1023666x.2020.1840865] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Laura Plüschke
- Leibniz-Institut für Polymerforschung Dresden e.V., Dresden, Germany
- Technische Universität Dresden, Dresden, Germany
| | - Anthony Ndiripo
- Department of Chemistry and Polymer Science, Stellenbosch University, Stellenbosch, South Africa
| | - Robert Mundil
- Department of Polymers, University of Chemistry and Technology, Prague, Czech Republic
| | - Jan Merna
- Department of Polymers, University of Chemistry and Technology, Prague, Czech Republic
| | - Harald Pasch
- Department of Chemistry and Polymer Science, Stellenbosch University, Stellenbosch, South Africa
| | - Albena Lederer
- Leibniz-Institut für Polymerforschung Dresden e.V., Dresden, Germany
- Technische Universität Dresden, Dresden, Germany
- Department of Chemistry and Polymer Science, Stellenbosch University, Stellenbosch, South Africa
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27
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Geisler M, Plüschke L, Merna J, Lederer A. The Role of Solubility in Thermal Field-Flow Fractionation: A Revisited Theoretical Approach for Tuning the Separation of Chain Walking Polymerized Polyethylene. Anal Chem 2020; 92:14822-14829. [DOI: 10.1021/acs.analchem.0c03686] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Martin Geisler
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Str. 6, 01069 Dresden, Germany
- Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, 01162 Dresden, Germany
| | - Laura Plüschke
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Str. 6, 01069 Dresden, Germany
- Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, 01162 Dresden, Germany
| | - Jan Merna
- Department of Polymers, University of Chemistry and Technology Prague, Technická 5, 166 28 Prague 6, Czech Republic
| | - Albena Lederer
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Str. 6, 01069 Dresden, Germany
- Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, 01162 Dresden, Germany
- Department of Chemistry and Polymer Science, Stellenbosch University, Private Bag X1, Matieland 7602, South Africa
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28
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Moreno S, Sharan P, Engelke J, Gumz H, Boye S, Oertel U, Wang P, Banerjee S, Klajn R, Voit B, Lederer A, Appelhans D. Light-Driven Proton Transfer for Cyclic and Temporal Switching of Enzymatic Nanoreactors. Small 2020; 16:e2002135. [PMID: 32783385 DOI: 10.1002/smll.202002135] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 05/25/2020] [Indexed: 06/11/2023]
Abstract
Temporal activation of biological processes by visible light and subsequent return to an inactive state in the absence of light is an essential characteristic of photoreceptor cells. Inspired by these phenomena, light-responsive materials are very attractive due to the high spatiotemporal control of light irradiation, with light being able to precisely orchestrate processes repeatedly over many cycles. Herein, it is reported that light-driven proton transfer triggered by a merocyanine-based photoacid can be used to modulate the permeability of pH-responsive polymersomes through cyclic, temporally controlled protonation and deprotonation of the polymersome membrane. The membranes can undergo repeated light-driven swelling-contraction cycles without losing functional effectiveness. When applied to enzyme loaded-nanoreactors, this membrane responsiveness is used for the reversible control of enzymatic reactions. This combination of the merocyanine-based photoacid and pH-switchable nanoreactors results in rapidly responding and versatile supramolecular systems successfully used to switch enzymatic reactions ON and OFF on demand.
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Affiliation(s)
- Silvia Moreno
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, Dresden, 01069, Germany
| | - Priyanka Sharan
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, Dresden, 01069, Germany
- Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, Dresden, 01062, Germany
- Materials Science Centre, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India
| | - Johanna Engelke
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, Dresden, 01069, Germany
- Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, Dresden, 01062, Germany
| | - Hannes Gumz
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, Dresden, 01069, Germany
- Center for Advancing Electronics Dresden, Technische Universität Dresden, Dresden, 01062, Germany
| | - Susanne Boye
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, Dresden, 01069, Germany
| | - Ulrich Oertel
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, Dresden, 01069, Germany
| | - Peng Wang
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, Dresden, 01069, Germany
- Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, Dresden, 01062, Germany
| | - Susanta Banerjee
- Materials Science Centre, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India
| | - Rafal Klajn
- Department of Organic Chemistry, Weizmann Institute of Science, Rehovot, 76100, Israel
| | - Brigitte Voit
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, Dresden, 01069, Germany
- Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, Dresden, 01062, Germany
- Center for Advancing Electronics Dresden, Technische Universität Dresden, Dresden, 01062, Germany
| | - Albena Lederer
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, Dresden, 01069, Germany
- Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, Dresden, 01062, Germany
- Department of Chemistry and Polymer Science, Stellenbosch University, Private Bag X1, Matieland, 7602, South Africa
| | - Dietmar Appelhans
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, Dresden, 01069, Germany
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29
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Krieg E, Gupta K, Dahl A, Lesche M, Boye S, Lederer A, Shih WM. A smart polymer for sequence-selective binding, pulldown, and release of DNA targets. Commun Biol 2020; 3:369. [PMID: 32651444 PMCID: PMC7351716 DOI: 10.1038/s42003-020-1082-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Accepted: 06/17/2020] [Indexed: 11/26/2022] Open
Abstract
Selective isolation of DNA is crucial for applications in biology, bionanotechnology, clinical diagnostics and forensics. We herein report a smart methanol-responsive polymer (MeRPy) that can be programmed to bind and separate single- as well as double-stranded DNA targets. Captured targets are quickly isolated and released back into solution by denaturation (sequence-agnostic) or toehold-mediated strand displacement (sequence-selective). The latter mode allows 99.8% efficient removal of unwanted sequences and 79% recovery of highly pure target sequences. We applied MeRPy for the depletion of insulin, glucagon, and transthyretin cDNA from clinical next-generation sequencing (NGS) libraries. This step improved the data quality for low-abundance transcripts in expression profiles of pancreatic tissues. Its low cost, scalability, high stability and ease of use make MeRPy suitable for diverse applications in research and clinical laboratories, including enhancement of NGS libraries, extraction of DNA from biological samples, preparative-scale DNA isolations, and sorting of DNA-labeled non-nucleic acid targets. Krieg et al. describe a methanol responsive polymer that can capture complementary DNA using grafted oligonucleotides. They successfully demonstrate its efficacy with simultaneous and sequence-specific isolation of three target genes (cDNA) from clinical NGS libraries with high efficiency. This method is fast, effective, scalable, modular, and versatile.
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Affiliation(s)
- Elisha Krieg
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA, USA. .,Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, MA, USA. .,Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA, USA. .,Leibniz-Institut für Polymerforschung Dresden e.V., Dresden, Germany. .,School of Science, Technische Universität Dresden, Dresden, Germany.
| | - Krishna Gupta
- Leibniz-Institut für Polymerforschung Dresden e.V., Dresden, Germany.,Biotechnology Center (BIOTEC), Technische Universität Dresden, Dresden, Germany
| | - Andreas Dahl
- DRESDEN-concept Genome Center, Center for Molecular and Cellular Bioengineering, Technische Universität Dresden, Dresden, Germany
| | - Mathias Lesche
- DRESDEN-concept Genome Center, Center for Molecular and Cellular Bioengineering, Technische Universität Dresden, Dresden, Germany
| | - Susanne Boye
- Leibniz-Institut für Polymerforschung Dresden e.V., Dresden, Germany
| | - Albena Lederer
- Leibniz-Institut für Polymerforschung Dresden e.V., Dresden, Germany.,School of Science, Technische Universität Dresden, Dresden, Germany
| | - William M Shih
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA, USA. .,Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, MA, USA. .,Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA, USA.
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30
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Anke F, Boye S, Spannenberg A, Lederer A, Heller D, Beweries T. Dehydropolymerisation of Methylamine Borane and an N-Substituted Primary Amine Borane Using a PNP Fe Catalyst. Chemistry 2020; 26:7889-7899. [PMID: 32118328 PMCID: PMC7383739 DOI: 10.1002/chem.202000809] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Indexed: 01/30/2023]
Abstract
Dehydropolymerisation of methylamine borane (H3 B⋅NMeH2 ) using the well-known iron amido complex [(PNP)Fe(H)(CO)] (PNP=N(CH2 CH2 PiPr2 )2 ) (1) gives poly(aminoborane)s by a chain-growth mechanism. In toluene, rapid dehydrogenation of H3 B⋅NMeH2 following first-order behaviour as a limiting case of a more general underlying Michaelis-Menten kinetics is observed, forming aminoborane H2 B=NMeH, which selectively couples to give high-molecular-weight poly(aminoborane)s (H2 BNMeH)n and only traces of borazine (HBNMe)3 by depolymerisation after full conversion. Based on a series of comparative experiments using structurally related Fe catalysts and dimethylamine borane (H3 B⋅NMe2 H) polymer formation is proposed to occur by nucleophilic chain growth as reported earlier computationally and experimentally. A silyl functionalised primary borane H3 B⋅N(CH2 SiMe3 )H2 was studied in homo- and co-dehydropolymerisation reactions to give the first examples for Si containing poly(aminoborane)s.
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Affiliation(s)
- Felix Anke
- Leibniz-Institut für Katalyse e.V.Albert-Einstein-Str. 29a18059RostockGermany
| | - Susanne Boye
- Leibniz-Institut für Polymerforschung DresdenHohe Str. 601069DresdenGermany
| | - Anke Spannenberg
- Leibniz-Institut für Katalyse e.V.Albert-Einstein-Str. 29a18059RostockGermany
| | - Albena Lederer
- Leibniz-Institut für Polymerforschung DresdenHohe Str. 601069DresdenGermany
- Technische Universität Dresden01062DresdenGermany
| | - Detlef Heller
- Leibniz-Institut für Katalyse e.V.Albert-Einstein-Str. 29a18059RostockGermany
| | - Torsten Beweries
- Leibniz-Institut für Katalyse e.V.Albert-Einstein-Str. 29a18059RostockGermany
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31
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Hannß M, Abbate RA, Mitzenheim E, Alkhalaf M, Böhm W, Lederer A, Henle T. Association of Enzymatically and Nonenzymatically Functionalized Caseins Analyzed by Size-Exclusion Chromatography and Light-Scattering Techniques. J Agric Food Chem 2020; 68:2773-2782. [PMID: 32013417 DOI: 10.1021/acs.jafc.9b06592] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The influence of covalent protein modifications resulting from the Maillard reaction (glycation) of casein and lactose on the noncovalent association behavior of the protein was studied. Nonenzymatic cross-linking with methylglyoxal (MGO) and glutaraldehyde (GTA) as well as enzymatic cross-linking with microbial transglutaminase (mTG) was investigated in comparison. Molar mass, particle size, and conformational characteristics of nonmicellar casein associates as well as the extent of intraparticle protein cross-linking were examined utilizing size-exclusion chromatography (SEC) combined with UV detection and static and dynamic light scattering. Cross-linking resulted in the stabilization of a certain fraction of casein associates, with particle sizes of approximately 30 nm in radius of gyration (Rg), and promoted an incorporation of further casein molecules into those particles, yielding molar masses (Mw) of 1.0-1.2 × 106 g/mol. When caseins were additionally conjugated with lactose during the early Maillard reaction, a further growth of the associates up to approximately 50 nm in Rg with a Mw of 2.1 × 106 g/mol was observed. Furthermore, glycation reactions induced a transition from slightly elongated, random-coil structures toward more anisotropic conformations. Associates consisting of caseins cross-linked with GTA appeared to preserve the original particle conformation.
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Affiliation(s)
- Mariella Hannß
- Chair of Food Chemistry, Technische Universität Dresden, 01062 Dresden, Germany
| | - Raffaele Andrea Abbate
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Str. 6, 01069 Dresden, Germany
- School of Science, Technische Universität Dresden, 01062 Dresden, Germany
| | - Eva Mitzenheim
- Chair of Food Chemistry, Technische Universität Dresden, 01062 Dresden, Germany
| | - Mahmoud Alkhalaf
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Str. 6, 01069 Dresden, Germany
- School of Science, Technische Universität Dresden, 01062 Dresden, Germany
| | - Wendelin Böhm
- Chair of Food Chemistry, Technische Universität Dresden, 01062 Dresden, Germany
| | - Albena Lederer
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Str. 6, 01069 Dresden, Germany
- School of Science, Technische Universität Dresden, 01062 Dresden, Germany
| | - Thomas Henle
- Chair of Food Chemistry, Technische Universität Dresden, 01062 Dresden, Germany
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32
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Engelke J, Tuten BT, Schweins R, Komber H, Barner L, Plüschke L, Barner-Kowollik C, Lederer A. An in-depth analysis approach enabling precision single chain nanoparticle design. Polym Chem 2020. [DOI: 10.1039/d0py01045f] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis of single chain nanoparticles (SCNPs) is a vibrant field in macromolecular science. However, to achieve an in-depth understanding of the nature of intramolecular polymer folding, a step-change in the methodologies for SCNP analysis is required.
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Affiliation(s)
- Johanna Engelke
- School of Chemistry and Physics
- Queensland University of Technology (QUT)
- Brisbane
- Australia
- Leibniz-Institut für Polymerforschung Dresden
| | - Bryan T. Tuten
- School of Chemistry and Physics
- Queensland University of Technology (QUT)
- Brisbane
- Australia
- Centre for Materials Science
| | - Ralf Schweins
- Institut Laue-Langevin
- DS/LSS
- CS 20 156
- 38042 Grenoble CEDEX 9
- France
| | - Hartmut Komber
- Leibniz-Institut für Polymerforschung Dresden
- 01069 Dresden
- Germany
| | - Leonie Barner
- School of Chemistry and Physics
- Queensland University of Technology (QUT)
- Brisbane
- Australia
- Centre for Materials Science
| | - Laura Plüschke
- Leibniz-Institut für Polymerforschung Dresden
- 01069 Dresden
- Germany
- School of Science
- Technische Universität Dresden
| | - Christopher Barner-Kowollik
- School of Chemistry and Physics
- Queensland University of Technology (QUT)
- Brisbane
- Australia
- Centre for Materials Science
| | - Albena Lederer
- Leibniz-Institut für Polymerforschung Dresden
- 01069 Dresden
- Germany
- School of Science
- Technische Universität Dresden
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33
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Geisler M, Smith WC, Plüschke L, Mundil R, Merna J, Williams SKR, Lederer A. Topology Analysis of Chain Walking Polymerized Polyethylene: An Alternative Approach for the Branching Characterization by Thermal FFF. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b01410] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Martin Geisler
- Polymer Separation Group, Leibniz-Institut für Polymerforschung Dresden e. V., Hohe Str. 6, 01069 Dresden, Germany
- Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, 01062 Dresden, Germany
| | - William C. Smith
- Department of Chemistry, Colorado School of Mines, Golden, Colorado 80401, United States
| | - Laura Plüschke
- Polymer Separation Group, Leibniz-Institut für Polymerforschung Dresden e. V., Hohe Str. 6, 01069 Dresden, Germany
- Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, 01062 Dresden, Germany
| | - Robert Mundil
- Department of Polymers, University of Chemistry and Technology Prague, Technická 5, 166 28 Praha 6, Czech Republic
| | - Jan Merna
- Department of Polymers, University of Chemistry and Technology Prague, Technická 5, 166 28 Praha 6, Czech Republic
| | | | - Albena Lederer
- Polymer Separation Group, Leibniz-Institut für Polymerforschung Dresden e. V., Hohe Str. 6, 01069 Dresden, Germany
- Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, 01062 Dresden, Germany
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34
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Daeg J, Xu X, Zhao L, Boye S, Janke A, Temme A, Zhao J, Lederer A, Voit B, Shi X, Appelhans D. Bivalent Peptide- and Chelator-Containing Bioconjugates as Toolbox Components for Personalized Nanomedicine. Biomacromolecules 2019; 21:199-213. [DOI: 10.1021/acs.biomac.9b01127] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Jennifer Daeg
- Leibniz-Institut für Polymerforschung Dresden e.V., Dresden 01069, Germany
- Technische Universität Dresden, Dresden 01062, Germany
| | - Xiaoying Xu
- Leibniz-Institut für Polymerforschung Dresden e.V., Dresden 01069, Germany
- Technische Universität Dresden, Dresden 01062, Germany
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People’s Republic of China
| | - Lingzhou Zhao
- Department of Nuclear Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, 100 Haining Road, Shanghai 200080, People’s Republic of China
| | - Susanne Boye
- Leibniz-Institut für Polymerforschung Dresden e.V., Dresden 01069, Germany
| | - Andreas Janke
- Leibniz-Institut für Polymerforschung Dresden e.V., Dresden 01069, Germany
| | - Achim Temme
- Department of Neurosurgery, Section Experimental Neurosurgery and Tumor Immunology, Universitätsklinikum Carl Gustav Carus, Dresden 01307, Germany
| | - Jinhua Zhao
- Department of Nuclear Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, 100 Haining Road, Shanghai 200080, People’s Republic of China
| | - Albena Lederer
- Leibniz-Institut für Polymerforschung Dresden e.V., Dresden 01069, Germany
| | - Brigitte Voit
- Leibniz-Institut für Polymerforschung Dresden e.V., Dresden 01069, Germany
- Technische Universität Dresden, Dresden 01062, Germany
| | - Xiangyang Shi
- Department of Nuclear Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, 100 Haining Road, Shanghai 200080, People’s Republic of China
| | - Dietmar Appelhans
- Leibniz-Institut für Polymerforschung Dresden e.V., Dresden 01069, Germany
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35
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Murata H, Baker SL, Kaupbayeva B, Lewis DJ, Zhang L, Boye S, Lederer A, Russell AJ. Ligands and characterization for effective bio‐atom‐transfer radical polymerization. Journal of Polymer Science 2019. [DOI: 10.1002/pola.29504] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Hironobu Murata
- Center for Polymer‐Based Protein Engineering, Carnegie Mellon University, 5000 Forbes Avenue Pittsburgh Pennsylvania 15213
| | - Stefanie L. Baker
- Center for Polymer‐Based Protein Engineering, Carnegie Mellon University, 5000 Forbes Avenue Pittsburgh Pennsylvania 15213
- Department of Biomedical Engineering Scott Hall 4N201, Carnegie Mellon University, 5000 Forbes Avenue Pittsburgh Pennsylvania 15213
| | - Bibifatima Kaupbayeva
- Center for Polymer‐Based Protein Engineering, Carnegie Mellon University, 5000 Forbes Avenue Pittsburgh Pennsylvania 15213
- Department of Biological Sciences Carnegie Mellon University, 4400 Fifth Avenue Pittsburgh Pennsylvania 15213
| | - Dylan J. Lewis
- Center for Polymer‐Based Protein Engineering, Carnegie Mellon University, 5000 Forbes Avenue Pittsburgh Pennsylvania 15213
- Department of Chemical Engineering Carnegie Mellon University, 5000 Forbes Avenue Pittsburgh Pennsylvania 15213
| | - Libin Zhang
- Center for Polymer‐Based Protein Engineering, Carnegie Mellon University, 5000 Forbes Avenue Pittsburgh Pennsylvania 15213
- Department of Chemical Engineering Carnegie Mellon University, 5000 Forbes Avenue Pittsburgh Pennsylvania 15213
| | - Susanne Boye
- Leibniz‐Institut für Polymerforschung Dresden e.V., Hohe Straße 6 Dresden 01069 Germany
| | - Albena Lederer
- Leibniz‐Institut für Polymerforschung Dresden e.V., Hohe Straße 6 Dresden 01069 Germany
- Technische Universität Dresden 01062 Dresden Germany
| | - Alan J. Russell
- Center for Polymer‐Based Protein Engineering, Carnegie Mellon University, 5000 Forbes Avenue Pittsburgh Pennsylvania 15213
- Department of Biomedical Engineering Scott Hall 4N201, Carnegie Mellon University, 5000 Forbes Avenue Pittsburgh Pennsylvania 15213
- Department of Biological Sciences Carnegie Mellon University, 4400 Fifth Avenue Pittsburgh Pennsylvania 15213
- Department of Chemical Engineering Carnegie Mellon University, 5000 Forbes Avenue Pittsburgh Pennsylvania 15213
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37
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Smith WC, Geisler M, Lederer A, Williams SKR. Thermal Field-Flow Fractionation for Characterization of Architecture in Hyperbranched Aromatic-Aliphatic Polyesters with Controlled Branching. Anal Chem 2019; 91:12344-12351. [DOI: 10.1021/acs.analchem.9b02664] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- William C. Smith
- Department of Chemistry, Colorado School of Mines, Golden, Colorado 80401, United States
| | - Martin Geisler
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Strasse 6, 01069 Dresden, Germany
- School of Science, Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, 01062 Dresden, Germany
| | - Albena Lederer
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Strasse 6, 01069 Dresden, Germany
- School of Science, Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, 01062 Dresden, Germany
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38
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Dockhorn R, Plüschke L, Geisler M, Zessin J, Lindner P, Mundil R, Merna J, Sommer JU, Lederer A. Polyolefins Formed by Chain Walking Catalysis-A Matter of Branching Density Only? J Am Chem Soc 2019; 141:15586-15596. [PMID: 31438682 DOI: 10.1021/jacs.9b06785] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Recently developed chain walking (CW) catalysis is an elegant approach to produce materials with controllable structure and properties. However, there is still a lack in understanding of how the reaction mechanism influences the macromolecular structures. In this study, a series of dendritic polyethylenes (PE) synthesized by Pd-α-diimine-complex through CW catalysis (CWPE) is investigated by means of theory and experiment. Thereby, the exceptional ability of in situ tailoring polymer structure by varying synthesis parameters was exploited to tune the branching architecture, which allowed us to establish a precise relationship between synthesis, structure, and solution properties. The systematically produced polymers were characterized by state-of-the-art multidetector separation and neutron scattering experiments as well as atomic force microscopy to access molecular properties of CWPE. On a global scale, the CWPE appear in a worm-like conformation independently on the synthesis conditions. However, severe differences in their contraction factors suggested that CWPE differ substantially in topology. These observations were verified by NMR studies that showed that CWPE possess a constant total number of branches but varying branching distribution. Small angle neutron scattering experiments gave access to structural characteristics from global to segmental scale and revealed the unique heterogeneity of CWPE, which is predominantly based on differences in their dendritic side chains. The experimental data were compared to theoretical CW structures modeled with different reaction-to-walking probabilities. Simple theoretical arguments predict a crossover from dendritic to linear topologies yielding a structural range from purely linear to dendritic chain growth. Yet, comparison of theoretical and empirical scattering curves gave the first evidence that a transition state to worm-like topologies is actually experimentally accessible. This crossover regime is characterized by linear global features and dendritic local substructures contrary to randomly hyperbranched systems. Instead, the obtained CWPE systems have characteristics of disordered dendritic bottle brushes and can be adjusted by the walking rate/reaction probability of the catalyst.
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Affiliation(s)
- Ron Dockhorn
- Leibniz Institute of Polymer Research Dresden , Hohe Strasse 6 , 01069 Dresden , Germany
| | - Laura Plüschke
- Leibniz Institute of Polymer Research Dresden , Hohe Strasse 6 , 01069 Dresden , Germany.,Technische Universität Dresden , 01062 Dresden , Germany
| | - Martin Geisler
- Leibniz Institute of Polymer Research Dresden , Hohe Strasse 6 , 01069 Dresden , Germany.,Technische Universität Dresden , 01062 Dresden , Germany
| | - Johanna Zessin
- Leibniz Institute of Polymer Research Dresden , Hohe Strasse 6 , 01069 Dresden , Germany.,Technische Universität Dresden , 01062 Dresden , Germany
| | - Peter Lindner
- Institut Laue-Langevin (ILL) , 71 Avenue des Martyrs , 38000 Grenoble , France
| | - Robert Mundil
- University of Chemistry and Technology Prague , Technická 5 , 16628 Prague 6 , Czech Republic
| | - Jan Merna
- University of Chemistry and Technology Prague , Technická 5 , 16628 Prague 6 , Czech Republic
| | - Jens-Uwe Sommer
- Leibniz Institute of Polymer Research Dresden , Hohe Strasse 6 , 01069 Dresden , Germany.,Technische Universität Dresden , 01062 Dresden , Germany
| | - Albena Lederer
- Leibniz Institute of Polymer Research Dresden , Hohe Strasse 6 , 01069 Dresden , Germany.,Technische Universität Dresden , 01062 Dresden , Germany
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39
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Fingernagel J, Boye S, Kietz A, Höbel S, Wozniak K, Moreno S, Janke A, Lederer A, Aigner A, Temme A, Voit B, Appelhans D. Mono- and Polyassociation Processes of Pentavalent Biotinylated PEI Glycopolymers for the Fabrication of Biohybrid Structures with Targeting Properties. Biomacromolecules 2019; 20:3408-3424. [DOI: 10.1021/acs.biomac.9b00667] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Johannes Fingernagel
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Strasse 6, D-01069 Dresden, Germany
- Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, D-01062 Dresden, Germany
| | - Susanne Boye
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Strasse 6, D-01069 Dresden, Germany
| | - André Kietz
- Clinical Pharmacology, Faculty of Medicine, Rudolf-Boehm-Institute of Pharmacology and Toxicology, University of Leipzig, Härtelstrasse 16-18, D-04107 Leipzig, Germany
| | - Sabrina Höbel
- Clinical Pharmacology, Faculty of Medicine, Rudolf-Boehm-Institute of Pharmacology and Toxicology, University of Leipzig, Härtelstrasse 16-18, D-04107 Leipzig, Germany
| | - Katarzyna Wozniak
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Strasse 6, D-01069 Dresden, Germany
| | - Silvia Moreno
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Strasse 6, D-01069 Dresden, Germany
| | - Andreas Janke
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Strasse 6, D-01069 Dresden, Germany
| | - Albena Lederer
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Strasse 6, D-01069 Dresden, Germany
- Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, D-01062 Dresden, Germany
| | - Achim Aigner
- Clinical Pharmacology, Faculty of Medicine, Rudolf-Boehm-Institute of Pharmacology and Toxicology, University of Leipzig, Härtelstrasse 16-18, D-04107 Leipzig, Germany
| | - Achim Temme
- Experimental Neurosurgery/Tumor Immunology, TU Dresden, D-01307 Dresden, Germany
- German Cancer Consortium (DKTK), Partner site Dresden, German Cancer Research Center (DKFZ), D-69120 Heidelberg, Germany
- National Center for Tumor Diseases (NCT), D-01307 Dresden, Germany
| | - Brigitte Voit
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Strasse 6, D-01069 Dresden, Germany
- Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, D-01062 Dresden, Germany
| | - Dietmar Appelhans
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Strasse 6, D-01069 Dresden, Germany
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40
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Pospiech D, Korwitz A, Eckstein K, Komber H, Jehnichen D, Suckow M, Lederer A, Arnhold K, Göbel M, Bremer M, Hoffmann A, Fischer S, Werner A, Walther T, Brünig H, Voit B. Fiber formation and properties of polyester/lignin blends. J Appl Polym Sci 2019. [DOI: 10.1002/app.48257] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Doris Pospiech
- Leibniz‐Institut für Polymerforschung Dresden e. V., Hohe Str. 6 01069 Dresden Germany
| | - Andreas Korwitz
- Leibniz‐Institut für Polymerforschung Dresden e. V., Hohe Str. 6 01069 Dresden Germany
| | - Kathrin Eckstein
- Leibniz‐Institut für Polymerforschung Dresden e. V., Hohe Str. 6 01069 Dresden Germany
| | - Hartmut Komber
- Leibniz‐Institut für Polymerforschung Dresden e. V., Hohe Str. 6 01069 Dresden Germany
| | - Dieter Jehnichen
- Leibniz‐Institut für Polymerforschung Dresden e. V., Hohe Str. 6 01069 Dresden Germany
| | - Marcus Suckow
- Leibniz‐Institut für Polymerforschung Dresden e. V., Hohe Str. 6 01069 Dresden Germany
| | - Albena Lederer
- Leibniz‐Institut für Polymerforschung Dresden e. V., Hohe Str. 6 01069 Dresden Germany
| | - Kerstin Arnhold
- Leibniz‐Institut für Polymerforschung Dresden e. V., Hohe Str. 6 01069 Dresden Germany
| | - Michael Göbel
- Leibniz‐Institut für Polymerforschung Dresden e. V., Hohe Str. 6 01069 Dresden Germany
| | - Martina Bremer
- Technische Universität DresdenWood and Plant Chemistry, Pienner Str. 19 01737 Tharandt Germany
| | - Anton Hoffmann
- Technische Universität DresdenWood and Plant Chemistry, Pienner Str. 19 01737 Tharandt Germany
| | - Steffen Fischer
- Technische Universität DresdenWood and Plant Chemistry, Pienner Str. 19 01737 Tharandt Germany
| | - Anett Werner
- Technische Universität DresdenInstitute of Natural Materials Technology, ZINT, Berg Str. 120 01069 Dresden Germany
| | - Thomas Walther
- Technische Universität DresdenInstitute of Natural Materials Technology, ZINT, Berg Str. 120 01069 Dresden Germany
| | - Harald Brünig
- Leibniz‐Institut für Polymerforschung Dresden e. V., Hohe Str. 6 01069 Dresden Germany
| | - Brigitte Voit
- Leibniz‐Institut für Polymerforschung Dresden e. V., Hohe Str. 6 01069 Dresden Germany
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41
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Abbate RA, Raak N, Boye S, Janke A, Rohm H, Jaros D, Lederer A. Asymmetric flow field flow fractionation for the investigation of caseins cross-linked by microbial transglutaminase. Food Hydrocoll 2019. [DOI: 10.1016/j.foodhyd.2019.01.043] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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42
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Gorzkiewicz M, Appelhans D, Boye S, Lederer A, Voit B, Klajnert-Maculewicz B. Effect of the Structure of Therapeutic Adenosine Analogues on Stability and Surface Electrostatic Potential of their Complexes with Poly(propyleneimine) Dendrimers. Macromol Rapid Commun 2019; 40:e1900181. [PMID: 31136015 DOI: 10.1002/marc.201900181] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Revised: 05/13/2019] [Indexed: 01/10/2023]
Abstract
Poly(propyleneimine) glycodendrimers are proposed as nanocarriers for triphosphate forms of anticancer adenosine analogues to improve the efficiency of chemotherapy and to overcome drug resistance mechanisms. This approach has proven successful for fludarabine administration-an autonomous way of cellular entry of a nucleotide-dendrimer noncovalent complex enables an increase in the intracellular accumulation and cytotoxic activity of the active metabolite of the drug. However, the attempt to apply an analogous strategy for clofarabine results in the inhibition of drug activity. To better understand this phenomenon, characterization and comparison of drug-dendrimer complexes were needed to indicate the differences in their surface properties and the strengths of fludarabine-dendrimer and clofarabine-dendrimer interactions. Here, zeta potential measurements, ultrafiltration, and asymmetric flow field-flow fractionation are applied to determine the surface electrostatic potential and stability of nucleotide-dendrimer formulations. This approach significantly extends the authors' research on the complexation potential of perfectly branched macromolecules, ultimately explaining previously observed differences and their consequences.
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Affiliation(s)
- Michał Gorzkiewicz
- Department of General Biophysics Faculty of Biology and Environmental Protection, University of Lodz, 141/143 Pomorska St., 90-236, Lodz, Poland
| | - Dietmar Appelhans
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, 01069, Dresden, Germany
| | - Susanne Boye
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, 01069, Dresden, Germany
| | - Albena Lederer
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, 01069, Dresden, Germany.,Technische Universität Dresden, 01062, Dresden, Germany
| | - Brigitte Voit
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, 01069, Dresden, Germany.,Technische Universität Dresden, 01062, Dresden, Germany
| | - Barbara Klajnert-Maculewicz
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, 01069, Dresden, Germany.,Department of General Biophysics Faculty of Biology and Environmental Protection, University of Lodz, 141/143 Pomorska St., 90-236, Lodz, Poland
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43
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Gumz H, Boye S, Iyisan B, Krönert V, Formanek P, Voit B, Lederer A, Appelhans D. Toward Functional Synthetic Cells: In-Depth Study of Nanoparticle and Enzyme Diffusion through a Cross-Linked Polymersome Membrane. Adv Sci (Weinh) 2019; 6:1801299. [PMID: 30989019 PMCID: PMC6446602 DOI: 10.1002/advs.201801299] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Revised: 12/04/2018] [Indexed: 05/19/2023]
Abstract
Understanding the diffusion of nanoparticles through permeable membranes in cell mimics paves the way for the construction of more sophisticated synthetic protocells with control over the exchange of nanoparticles or biomacromolecules between different compartments. Nanoparticles postloading by swollen pH switchable polymersomes is investigated and nanoparticles locations at or within polymersome membrane and polymersome lumen are precisely determined. Validation of transmembrane diffusion properties is performed based on nanoparticles of different origin-gold, glycopolymer protein mimics, and the enzymes myoglobin and esterase-with dimensions between 5 and 15 nm. This process is compared with the in situ loading of nanoparticles during polymersome formation and analyzed by advanced multiple-detector asymmetrical flow field-flow fractionation (AF4). These experiments are supported by complementary i) release studies of protein mimics from polymersomes, ii) stability and cyclic pH switches test for in polymersome encapsulated myoglobin, and iii) cryogenic transmission electron microscopy studies on nanoparticles loaded polymersomes. Different locations (e.g., membrane and/or lumen) are identified for the uptake of each protein. The protein locations are extracted from the increasing scaling parameters and the decreasing apparent density of enzyme-containing polymersomes as determined by AF4. Postloading demonstrates to be a valuable tool for the implementation of cell-like functions in polymersomes.
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Affiliation(s)
- Hannes Gumz
- Leibniz‐Institut für Polymerforschung Dresden e.V.Hohe Straße 601069DresdenGermany
- School of ScienceFaculty of Chemistry and Food ChemistryTechnische Universität Dresden01062DresdenGermany
- Cluster of Excellence “Center for Advancing Electronics Dresden”Technische Universität Dresden01062DresdenGermany
| | - Susanne Boye
- Leibniz‐Institut für Polymerforschung Dresden e.V.Hohe Straße 601069DresdenGermany
| | - Banu Iyisan
- Max‐Planck‐Institute for Polymer ResearchAckermannweg 1055128MainzGermany
| | - Vera Krönert
- Leibniz‐Institut für Polymerforschung Dresden e.V.Hohe Straße 601069DresdenGermany
| | - Petr Formanek
- Leibniz‐Institut für Polymerforschung Dresden e.V.Hohe Straße 601069DresdenGermany
| | - Brigitte Voit
- Leibniz‐Institut für Polymerforschung Dresden e.V.Hohe Straße 601069DresdenGermany
- School of ScienceFaculty of Chemistry and Food ChemistryTechnische Universität Dresden01062DresdenGermany
- Cluster of Excellence “Center for Advancing Electronics Dresden”Technische Universität Dresden01062DresdenGermany
| | - Albena Lederer
- Leibniz‐Institut für Polymerforschung Dresden e.V.Hohe Straße 601069DresdenGermany
- School of ScienceFaculty of Chemistry and Food ChemistryTechnische Universität Dresden01062DresdenGermany
| | - Dietmar Appelhans
- Leibniz‐Institut für Polymerforschung Dresden e.V.Hohe Straße 601069DresdenGermany
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44
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Raak N, Brehm L, Abbate RA, Henle T, Lederer A, Rohm H, Jaros D. Self-association of casein studied using enzymatic cross-linking at different temperatures. FOOD BIOSCI 2019. [DOI: 10.1016/j.fbio.2019.01.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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45
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Engelke J, Brandt J, Barner-Kowollik C, Lederer A. Strengths and limitations of size exclusion chromatography for investigating single chain folding – current status and future perspectives. Polym Chem 2019. [DOI: 10.1039/c9py00336c] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Synthetic approaches for Single-Chain Nanoparticles (SCNPs) developed rapidly during the last decade, opening a multitude of avenues for the design of functional macromolecular chains able to collapse into defined nanoparticles. However, the analytical evaluation of the SCNP formation process still requires critical improvements.
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Affiliation(s)
- Johanna Engelke
- Polymer Separation Group
- Leibniz-Institut für Polymerforschung Dresden e.V
- 01069 Dresden
- Germany
- Technische Universität Dresden
| | - Josef Brandt
- Polymer Separation Group
- Leibniz-Institut für Polymerforschung Dresden e.V
- 01069 Dresden
- Germany
| | - Christopher Barner-Kowollik
- School of Chemistry
- Physics and Mechanical Engineering
- Queensland University of Technology (QUT)
- Brisbane
- Australia
| | - Albena Lederer
- Polymer Separation Group
- Leibniz-Institut für Polymerforschung Dresden e.V
- 01069 Dresden
- Germany
- Technische Universität Dresden
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46
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Greyling G, Lederer A, Pasch H. Thermal Field-Flow Fractionation for the Investigation of the Thermoresponsive Nature of Star and Linear Polystyrene. MACROMOL CHEM PHYS 2018. [DOI: 10.1002/macp.201800417] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Guilaume Greyling
- Department of Chemistry and Polymer Science University of Stellenbosch; Private Bag X1; 7602 Matieland South Africa
| | - Albena Lederer
- Leibniz Institute of Polymer Research Dresden, Hohe Straße 6; D-01069 Dresden and Technische Universität Dresden; D-01062 Dresden Germany
| | - Harald Pasch
- Department of Chemistry and Polymer Science University of Stellenbosch; Private Bag X1; 7602 Matieland South Africa
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47
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Trose M, Reiß M, Reiß F, Anke F, Spannenberg A, Boye S, Lederer A, Arndt P, Beweries T. Dehydropolymerisation of methylamine borane using a dinuclear 1,3-allenediyl bridged zirconocene complex. Dalton Trans 2018; 47:12858-12862. [PMID: 30156242 DOI: 10.1039/c8dt03311k] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The dinuclear zirconocene chloride complex 1 is a highly active precatalyst for the dehydropolymerisation of methylamine borane. Comparison with mononuclear Zr chlorides and related dinuclear complexes suggests that the nature of the bridging motif is essential for the unique reactivity of 1.
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Affiliation(s)
- M Trose
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein-Str. 29a, 18059 Rostock, Germany.
| | - M Reiß
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein-Str. 29a, 18059 Rostock, Germany.
| | - F Reiß
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein-Str. 29a, 18059 Rostock, Germany.
| | - F Anke
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein-Str. 29a, 18059 Rostock, Germany.
| | - A Spannenberg
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein-Str. 29a, 18059 Rostock, Germany.
| | - S Boye
- Leibniz-Institut für Polymerforschung Dresden, Hohe Str. 6, 01069 Dresden, Germany
| | - A Lederer
- Leibniz-Institut für Polymerforschung Dresden, Hohe Str. 6, 01069 Dresden, Germany and Technische Universität Dresden, 01062 Dresden, Germany
| | - P Arndt
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein-Str. 29a, 18059 Rostock, Germany.
| | - T Beweries
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein-Str. 29a, 18059 Rostock, Germany.
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48
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49
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Rossner C, Letofsky-Papst I, Fery A, Lederer A, Kothleitner G. Thermoreversible Surface Polymer Patches: A Cryogenic Transmission Electron Microscopy Investigation. Langmuir 2018; 34:8622-8628. [PMID: 29958497 DOI: 10.1021/acs.langmuir.8b01742] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Hybrid core-shell type nanoparticles from gold nanoparticle cores and poly( N-isopropylacrylamide) shells were investigated with regard to their structural plasticity. Reversible addition-fragmentation chain transfer polymerization was used to synthesize well-defined polymers that can be readily anchored onto the gold nanoparticle surface. The polymer shell morphologies were directly visualized in their native solution state at high resolution by cryogenic transmission electron microscopy, and the microscopic results were further corroborated by dynamic light scattering. Different environmental conditions and brush architectures are covered by our experiments, which leads to distinct thermally induced responses. These responses include constrained dewetting of the nanoparticle surface at temperatures above the lower critical solution temperature of poly( N-isopropylacrylamide), leading to surface polymer patches. This effect provides a novel approach toward breaking the symmetry of nanoparticle interactions, and we show first evidence for its impact on the formation of colloidal superstructures.
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Affiliation(s)
| | | | - Andreas Fery
- Cluster of Excellence Centre for Advancing Electronics Dresden (cfaed) , Technische Universität Dresden , D-01062 Dresden , Germany
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50
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Firdaus S, Geisler M, Friedel P, Banerjee S, Appelhans D, Voit B, Lederer A. Glyco-pseudodendrimers on a Polyester Basis: Synthesis and Investigation of Protein-Pseudodendrimer Interaction. Macromol Rapid Commun 2018; 39:e1800364. [PMID: 29984438 DOI: 10.1002/marc.201800364] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 06/08/2018] [Indexed: 11/09/2022]
Abstract
Molar mass and end group number of a hyperbranched polyester are significantly increased by its transformation to a pseudodendrimer. Three generations of pseudodendrimers are obtained from hyperbranched aliphatic polyester core by modification with a protected AB*2 monomer. A sequence of protection and deprotection steps leads to OH-terminated pseudodendrimers. NMR studies confirm maximum degree of branching in the first generation, which slightly decreases in the next two generations. Uniform, dense molecular structure formation was confirmed by MD simulation. Further modification to glyco-pseudodendrimers was performed with α-D-mannose leading to high molar masses and dense distribution of sugar units. The interaction of these sugar units with a plant lectin concanavalin A (Con A) was investigated using dynamic light scattering and cryogenic transmission electron microscopy. The protein-interaction studies of the glyco-pseudodendrimers confirm a loose network with Con A. The interaction activity depends on the generation number and modification degree.
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Affiliation(s)
- Shamila Firdaus
- Polymer Separation Group, Institute of Macromolecular Chemistry, Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Strasse 6, 01069, Dresden, Germany
- School of Science, Technische Universität Dresden, 01062, Dresden, Germany
| | - Martin Geisler
- Polymer Separation Group, Institute of Macromolecular Chemistry, Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Strasse 6, 01069, Dresden, Germany
- School of Science, Technische Universität Dresden, 01062, Dresden, Germany
| | - Peter Friedel
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Strasse 6, 01069, Dresden, Germany
| | - Susanta Banerjee
- Materials Science Centre, Indian Institute of Technology, Kharagpur, 721302, India
| | - Dietmar Appelhans
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Strasse 6, 01069, Dresden, Germany
| | - Brigitte Voit
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Strasse 6, 01069, Dresden, Germany
- Organic Chemistry of Polymers, Technische Universität Dresden, 01062, Dresden, Germany
| | - Albena Lederer
- Polymer Separation Group, Institute of Macromolecular Chemistry, Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Strasse 6, 01069, Dresden, Germany
- School of Science, Technische Universität Dresden, 01062, Dresden, Germany
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