1
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Allam T, Balderston DE, Chahal MK, Hilton KLF, Hind CK, Keers OB, Lilley RJ, Manwani C, Overton A, Popoola PIA, Thompson LR, White LJ, Hiscock JR. Tools to enable the study and translation of supramolecular amphiphiles. Chem Soc Rev 2023; 52:6892-6917. [PMID: 37753825 DOI: 10.1039/d3cs00480e] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/28/2023]
Abstract
This tutorial review focuses on providing a summary of the key techniques used for the characterisation of supramolecular amphiphiles and their self-assembled aggregates; from the understanding of low-level molecular interactions, to materials analysis, use of data to support computer-aided molecular design and finally, the translation of this class of compounds for real world application, specifically within the clinical setting. We highlight the common methodologies used for the study of traditional amphiphiles and build to provide specific examples that enable the study of specialist supramolecular systems. This includes the use of nuclear magnetic resonance spectroscopy, mass spectrometry, X-ray scattering techniques (small- and wide-angle X-ray scattering and single crystal X-ray diffraction), critical aggregation (or micelle) concentration determination methodologies, machine learning, and various microscopy techniques. Furthermore, this review provides guidance for working with supramolecular amphiphiles in in vitro and in vivo settings, as well as the use of accessible software programs, to facilitate screening and selection of druggable molecules. Each section provides: a methodology overview - information that may be derived from the use of the methodology described; a case study - examples for the application of these methodologies; and a summary section - providing methodology specific benefits, limitations and future applications.
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Affiliation(s)
- Thomas Allam
- School of Chemistry, University of Southampton, University Road, Southampton, SO17 1BJ, UK
| | - Dominick E Balderston
- School of Chemistry and Forensic Science, University of Kent, Canterbury, CT2 7NH, UK.
| | - Mandeep K Chahal
- School of Chemistry and Forensic Science, University of Kent, Canterbury, CT2 7NH, UK.
| | - Kira L F Hilton
- School of Chemistry and Forensic Science, University of Kent, Canterbury, CT2 7NH, UK.
| | - Charlotte K Hind
- Research and Evaluation, UKHSA, Porton Down, Salisbury SP4 0JG, UK
| | - Olivia B Keers
- School of Chemistry and Forensic Science, University of Kent, Canterbury, CT2 7NH, UK.
| | - Rebecca J Lilley
- School of Chemistry and Forensic Science, University of Kent, Canterbury, CT2 7NH, UK.
| | - Chandni Manwani
- School of Chemistry and Forensic Science, University of Kent, Canterbury, CT2 7NH, UK.
| | - Alix Overton
- School of Chemistry and Forensic Science, University of Kent, Canterbury, CT2 7NH, UK.
| | - Precious I A Popoola
- School of Chemistry and Forensic Science, University of Kent, Canterbury, CT2 7NH, UK.
| | - Lisa R Thompson
- School of Chemistry and Forensic Science, University of Kent, Canterbury, CT2 7NH, UK.
| | - Lisa J White
- School of Chemistry and Forensic Science, University of Kent, Canterbury, CT2 7NH, UK.
| | - Jennifer R Hiscock
- School of Chemistry and Forensic Science, University of Kent, Canterbury, CT2 7NH, UK.
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2
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Gubarev AS, Lezov AA, Mikusheva NG, Perevyazko I, Senchukova AS, Lezova AA, Podsevalnikova AN, Rogozhin VB, Enke M, Winter A, Schubert US, Tsvetkov NV. Hydrodynamic Characteristics and Conformational Parameters of Ferrocene-Terpyridine-Based Polymers. Polymers (Basel) 2022; 14:polym14091776. [PMID: 35566943 PMCID: PMC9104623 DOI: 10.3390/polym14091776] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 04/04/2022] [Accepted: 04/19/2022] [Indexed: 02/04/2023] Open
Abstract
Nowadays, the study of metallopolymers is one of the fastest growing areas of polymer science. Metallopolymers have great potential for application in multiple technological and various biomedical processes. The macromolecules with the possibility of varying the number and type of metal ions along the entire length of the polymer chain are of particular interest. In this regard, this study presents results on two successfully synthesized homopolymers, random and block copolymers based on PMMA, containing ferrocene and terpyridine moieties in the side chain. Different architectures of copolymers may attribute interesting properties when creating complexes with various metal ions. A detailed hydrodynamic study of these structures was carried out, the consistency of hydrodynamic data was established using the concept of a hydrodynamic invariant, the absolute values of the molar masses of the studied objects were calculated, and the conformational parameters of macromolecules were determined. Using the Fixman-Stockmayer theory, the equilibrium rigidities of the studied systems were calculated and the relationship between the chemical structure and conformational characteristics was established. The studied copolymers can be attributed to the class of flexible-chain macromolecules. An increase in the equilibrium rigidity value with an increase of the side chain, which is characteristic of comb-shaped polymers, was determined.
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Affiliation(s)
- Alexander S. Gubarev
- Department of Molecular Biophysics and Polymer Physics, St. Petersburg University, Universitetskaya Nab. 7/9, 199034 Saint-Petersburg, Russia; (A.S.G.); (A.A.L.); (N.G.M.); (I.P.); (A.S.S.); (A.A.L.); (A.N.P.); (V.B.R.)
| | - Alexey A. Lezov
- Department of Molecular Biophysics and Polymer Physics, St. Petersburg University, Universitetskaya Nab. 7/9, 199034 Saint-Petersburg, Russia; (A.S.G.); (A.A.L.); (N.G.M.); (I.P.); (A.S.S.); (A.A.L.); (A.N.P.); (V.B.R.)
| | - Nina G. Mikusheva
- Department of Molecular Biophysics and Polymer Physics, St. Petersburg University, Universitetskaya Nab. 7/9, 199034 Saint-Petersburg, Russia; (A.S.G.); (A.A.L.); (N.G.M.); (I.P.); (A.S.S.); (A.A.L.); (A.N.P.); (V.B.R.)
| | - Igor Perevyazko
- Department of Molecular Biophysics and Polymer Physics, St. Petersburg University, Universitetskaya Nab. 7/9, 199034 Saint-Petersburg, Russia; (A.S.G.); (A.A.L.); (N.G.M.); (I.P.); (A.S.S.); (A.A.L.); (A.N.P.); (V.B.R.)
| | - Anna S. Senchukova
- Department of Molecular Biophysics and Polymer Physics, St. Petersburg University, Universitetskaya Nab. 7/9, 199034 Saint-Petersburg, Russia; (A.S.G.); (A.A.L.); (N.G.M.); (I.P.); (A.S.S.); (A.A.L.); (A.N.P.); (V.B.R.)
| | - Alexandra A. Lezova
- Department of Molecular Biophysics and Polymer Physics, St. Petersburg University, Universitetskaya Nab. 7/9, 199034 Saint-Petersburg, Russia; (A.S.G.); (A.A.L.); (N.G.M.); (I.P.); (A.S.S.); (A.A.L.); (A.N.P.); (V.B.R.)
| | - Anna N. Podsevalnikova
- Department of Molecular Biophysics and Polymer Physics, St. Petersburg University, Universitetskaya Nab. 7/9, 199034 Saint-Petersburg, Russia; (A.S.G.); (A.A.L.); (N.G.M.); (I.P.); (A.S.S.); (A.A.L.); (A.N.P.); (V.B.R.)
| | - Vyacheslav B. Rogozhin
- Department of Molecular Biophysics and Polymer Physics, St. Petersburg University, Universitetskaya Nab. 7/9, 199034 Saint-Petersburg, Russia; (A.S.G.); (A.A.L.); (N.G.M.); (I.P.); (A.S.S.); (A.A.L.); (A.N.P.); (V.B.R.)
| | - Marcel Enke
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstr. 10, 07743 Jena, Germany; (M.E.); (A.W.)
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Andreas Winter
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstr. 10, 07743 Jena, Germany; (M.E.); (A.W.)
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Ulrich S. Schubert
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstr. 10, 07743 Jena, Germany; (M.E.); (A.W.)
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
- Correspondence: (U.S.S.); (N.V.T.)
| | - Nikolai V. Tsvetkov
- Department of Molecular Biophysics and Polymer Physics, St. Petersburg University, Universitetskaya Nab. 7/9, 199034 Saint-Petersburg, Russia; (A.S.G.); (A.A.L.); (N.G.M.); (I.P.); (A.S.S.); (A.A.L.); (A.N.P.); (V.B.R.)
- Correspondence: (U.S.S.); (N.V.T.)
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3
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Metallo-Supramolecular Complexation Behavior of Terpyridine- and Ferrocene-Based Polymers in Solution-A Molecular Hydrodynamics Perspective. Polymers (Basel) 2022; 14:polym14050944. [PMID: 35267767 PMCID: PMC8912760 DOI: 10.3390/polym14050944] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 02/21/2022] [Accepted: 02/22/2022] [Indexed: 02/01/2023] Open
Abstract
The contribution deals with the synthesis of the poly(methacrylate)-based copolymers, which contain ferrocene and/or terpyridine moieties in the side chains, and the subsequent analysis of their self-assembly behavior upon supramolecular/coordination interactions with Eu3+ and Pd2+ ions in dilute solutions. Both metal ions provoke intra and inter molecular complexation that results in the formation of large supra-macromolecular assembles of different conformation/shapes. By applying complementary analytical approaches (i.e., sedimentation-diffusion analysis in the analytical ultracentrifuge, dynamic light scattering, viscosity and density measurements, morphology studies by electron microscopy), a map of possible conformational states/shapes was drawn and the corresponding fundamental hydrodynamic and macromolecular characteristics of metallo-supramolecular assemblies at various ligand-to-ion molar concentration ratios (M/L) in extremely dilute polymer solutions (c[η]≈0.006) were determined. It was shown that intramolecular complexation is already detected at (L≈0.1), while at M/L>0.5 solution/suspension precipitates. Extreme aggregation/agglomeration behavior of such dilute polymer solutions at relatively “high” metal ion content is explained from the perspective of polymer-solvent and charge interactions that will accompany the intramolecular complexation due to the coordination interactions.
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4
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Wang Y, Thies-Weesie DM, Bosman ED, van Steenbergen MJ, van den Dikkenberg J, Shi Y, Lammers T, van Nostrum CF, Hennink WE. Tuning the size of all-HPMA polymeric micelles fabricated by solvent extraction. J Control Release 2022; 343:338-346. [DOI: 10.1016/j.jconrel.2022.01.042] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 01/23/2022] [Accepted: 01/24/2022] [Indexed: 12/14/2022]
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5
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Valderrama OJ, Nischang I. Reincarnation of the Analytical Ultracentrifuge: Emerging Opportunities for Nanomedicine. Anal Chem 2021; 93:15805-15815. [PMID: 34806364 DOI: 10.1021/acs.analchem.1c03116] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The analytical ultracentrifuge (AUC) and the modern field of analytical ultracentrifugation found its inception approximately a century ago. We highlight the scope of its major experimental opportunities as a transport-based method, contemporary and up-and-coming investigation potential for polymers, polymer-drug conjugates, polymer assemblies, as well as medical nanoparticles. Special focus lies on molar mass estimates of unimeric polymeric species, self-assemblies in solution, and (co)localization of multicomponent systems in solution alongside the material-biofluid interactions. We close with present challenges and incentives for future research.
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Affiliation(s)
- Olenka Jibaja Valderrama
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany.,Jena Center for Soft Matter, Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Ivo Nischang
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany.,Jena Center for Soft Matter, Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
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6
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Amponsah-Efah KK, Demeler B, Suryanarayanan R. Characterizing Drug-Polymer Interactions in Aqueous Solution with Analytical Ultracentrifugation. Mol Pharm 2020; 18:246-256. [PMID: 33264020 DOI: 10.1021/acs.molpharmaceut.0c00849] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
We present a new approach for characterizing drug-polymer interactions in aqueous media, using sedimentation velocity analytical ultracentrifugation (AUC). We investigated the potential interaction of ketoconazole (KTZ), a poorly water-soluble drug, with polyacrylic acid (PAA) and a polyvinyl caprolactam-polyvinyl acetate-polyethylene glycol graft copolymer (Soluplus) in aqueous buffers. The effect of the polymer on the sedimentation coefficient of the drug was the observable metric. The drug alone, when subjected to AUC, exhibited a very narrow sedimentation peak at 0.2 Svedberg (S), in agreement with the expectation for a monomeric drug with a molar mass < 1000 Dalton. Conversely, the neat polymers showed broad profiles with higher sedimentation coefficients, reflecting their larger more heterogeneous size distributions. The sedimentation profiles of the drug-polymer mixtures were expectedly different from the profile of the neat drug. With KTZ-Soluplus, a complete shift to faster sedimentation times (indicative of an interaction) was observed, while with KTZ-PAA, a split peak indicated the existence of the drug in both free and interacting states. The sedimentation profile of carbamazepine, a second model drug, in the presence of hydroxypropyl methyl cellulose acetate succinate (HPMCAS, another polymer) revealed multiple "populations" of drug-polymer species, very similar to the sedimentation profile of neat HPMCAS. The interactions probed by AUC were compared with the results from isothermal titration calorimetry. In vitro dissolution tests performed on amorphous solid dispersions prepared with the same drug-polymer pairs suggested that the interactions may play a role in prolonging drug supersaturation. The results show the possibility of characterizing drug-polymer interactions in aqueous solution with high hydrodynamic resolution, addressing a major challenge frequently encountered in the mechanistic investigations of the dissolution behavior of amorphous solid dispersions.
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Affiliation(s)
- Kweku K Amponsah-Efah
- Department of Pharmaceutics, University of Minnesota, 308 Harvard St SE, Minneapolis, Minnesota 55455, United States
| | - Borries Demeler
- Department of Chemistry and Biochemistry, University of Lethbridge, 4401 University Drive, Lethbridge, Alberta T1K 3M4, Canada
| | - Raj Suryanarayanan
- Department of Pharmaceutics, University of Minnesota, 308 Harvard St SE, Minneapolis, Minnesota 55455, United States
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7
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Rey M, Uttinger MJ, Peukert W, Walter J, Vogel N. Probing particle heteroaggregation using analytical centrifugation. SOFT MATTER 2020; 16:3407-3415. [PMID: 32154548 DOI: 10.1039/d0sm00026d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The controlled aggregation of colloidal particles is not only a widespread natural phenomenon but also serves as a tool to design complex building blocks with tailored shape and functionalities. However, the quantitative characterization of such heteroaggregation processes remains challenging. Here, we demonstrate the use of analytical centrifugation to characterize the heteroaggregation of silica particles and soft microgels bearing similar surface charges. We investigate the attachment as well as the stability of the formed heteroaggregates as a function of particle to microgel surface ratio, microgel size and the influence of temperature. The attachment of microgels onto the colloidal particles induces a change in the sedimentation coefficient, which is used to quantitatively identify the number of attached microgels. We corroborate the shift in sedimentation coefficient by computer simulations of the frictional properties of heteroaggregates via a modified Brownian dynamic algorithm. The comparison between theoretical investigations and experiments suggest that the microgels deform and flatten upon attachment.
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Affiliation(s)
- Marcel Rey
- Institute of Particle Technology (LFG), Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Cauerstrasse 4, 91058 Erlangen, Germany. and Interdisciplinary Center for Functional Particle Systems (FPS), Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Haberstrasse 9a, 91058 Erlangen, Germany
| | - Maximilian J Uttinger
- Institute of Particle Technology (LFG), Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Cauerstrasse 4, 91058 Erlangen, Germany. and Interdisciplinary Center for Functional Particle Systems (FPS), Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Haberstrasse 9a, 91058 Erlangen, Germany
| | - Wolfgang Peukert
- Institute of Particle Technology (LFG), Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Cauerstrasse 4, 91058 Erlangen, Germany. and Interdisciplinary Center for Functional Particle Systems (FPS), Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Haberstrasse 9a, 91058 Erlangen, Germany
| | - Johannes Walter
- Institute of Particle Technology (LFG), Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Cauerstrasse 4, 91058 Erlangen, Germany. and Interdisciplinary Center for Functional Particle Systems (FPS), Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Haberstrasse 9a, 91058 Erlangen, Germany
| | - Nicolas Vogel
- Institute of Particle Technology (LFG), Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Cauerstrasse 4, 91058 Erlangen, Germany. and Interdisciplinary Center for Functional Particle Systems (FPS), Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Haberstrasse 9a, 91058 Erlangen, Germany
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8
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Wang Y, Astruc D, Abd-El-Aziz AS. Metallopolymers for advanced sustainable applications. Chem Soc Rev 2019; 48:558-636. [PMID: 30506080 DOI: 10.1039/c7cs00656j] [Citation(s) in RCA: 100] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Since the development of metallopolymers, there has been tremendous interest in the applications of this type of materials. The interest in these materials stems from their potential use in industry as catalysts, biomedical agents in healthcare, energy storage and production as well as climate change mitigation. The past two decades have clearly shown exponential growth in the development of many new classes of metallopolymers that address these issues. Today, metallopolymers are considered to be at the forefront for discovering new and sustainable heterogeneous catalysts, therapeutics for drug-resistant diseases, energy storage and photovoltaics, molecular barometers and thermometers, as well as carbon dioxide sequesters. The focus of this review is to highlight the advances in design of metallopolymers with specific sustainable applications.
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Affiliation(s)
- Yanlan Wang
- Liaocheng University, Department of Chemistry and Chemical Engineering, 252059, Liaocheng, China.
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9
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Grube M, Leiske MN, Schubert US, Nischang I. POx as an Alternative to PEG? A Hydrodynamic and Light Scattering Study. Macromolecules 2018. [DOI: 10.1021/acs.macromol.7b02665] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Mandy Grube
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstraße 10, 07743 Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Meike N. Leiske
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstraße 10, 07743 Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Ulrich S. Schubert
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstraße 10, 07743 Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Ivo Nischang
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstraße 10, 07743 Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
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10
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Perevyazko I, Trützschler AK, Gubarev A, Lebedeva E, Traeger A, Schubert US, Tsvetkov N. Molecular and structural analysis via hydrodynamic methods: Cationic poly(2-aminoethyl-methacrylate)s. POLYMER 2017. [DOI: 10.1016/j.polymer.2017.10.032] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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11
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Nischang I, Perevyazko I, Majdanski T, Vitz J, Festag G, Schubert US. Hydrodynamic Analysis Resolves the Pharmaceutically-Relevant Absolute Molar Mass and Solution Properties of Synthetic Poly(ethylene glycol)s Created by Varying Initiation Sites. Anal Chem 2016; 89:1185-1193. [DOI: 10.1021/acs.analchem.6b03615] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Ivo Nischang
- Laboratory
of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstraße 10, 07743 Jena, Germany
- Jena
Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Igor Perevyazko
- Department
of Molecular Biophysics and Physics of Polymers, St. Petersburg State University, Universitetskaya nab. 7/9, 199034, Saint Petersburg, Russia
| | - Tobias Majdanski
- Laboratory
of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstraße 10, 07743 Jena, Germany
- Jena
Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Jürgen Vitz
- Laboratory
of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstraße 10, 07743 Jena, Germany
- Jena
Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Grit Festag
- Laboratory
of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstraße 10, 07743 Jena, Germany
- Jena
Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Ulrich S. Schubert
- Laboratory
of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstraße 10, 07743 Jena, Germany
- Jena
Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
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12
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Winter A, Schubert US. Synthesis and characterization of metallo-supramolecular polymers. Chem Soc Rev 2016; 45:5311-57. [PMID: 27218823 DOI: 10.1039/c6cs00182c] [Citation(s) in RCA: 249] [Impact Index Per Article: 31.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The incorporation of metal centers into the backbone of polymers has led to the development of a broad range of organometallic and coordination compounds featuring properties that are relevant for potential applications in diverse areas of research, ranging from energy storage/conversion to bioactive or self-healing materials. In this review, the basic concepts and synthetic strategies leading to these types of materials as well as the scope of available characterization techniques will be summarized and discussed.
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Affiliation(s)
- Andreas Winter
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstr. 10, 07743 Jena, Germany.
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13
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Chen L, Huang Z, Xu JF, Wang Z, Zhang X. Controllable supramolecular polymerization through self-sorting of aliphatic and aromatic motifs. Polym Chem 2016. [DOI: 10.1039/c5py01923k] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Self-sorting is one of the effective strategies to realize control over supramolecular polymerization.
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Affiliation(s)
- Linghui Chen
- The Key Lab of Organic Optoelectronics & Molecular Engineering
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- P. R. China
| | - Zehuan Huang
- The Key Lab of Organic Optoelectronics & Molecular Engineering
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- P. R. China
| | - Jiang-Fei Xu
- The Key Lab of Organic Optoelectronics & Molecular Engineering
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- P. R. China
| | - Zhiqiang Wang
- The Key Lab of Organic Optoelectronics & Molecular Engineering
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- P. R. China
| | - Xi Zhang
- The Key Lab of Organic Optoelectronics & Molecular Engineering
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- P. R. China
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14
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Yang L, Tan X, Wang Z, Zhang X. Supramolecular Polymers: Historical Development, Preparation, Characterization, and Functions. Chem Rev 2015; 115:7196-239. [DOI: 10.1021/cr500633b] [Citation(s) in RCA: 906] [Impact Index Per Article: 100.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Liulin Yang
- Key Laboratory of Organic Optoelectronics & Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Xinxin Tan
- Key Laboratory of Organic Optoelectronics & Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Zhiqiang Wang
- Key Laboratory of Organic Optoelectronics & Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Xi Zhang
- Key Laboratory of Organic Optoelectronics & Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing 100084, China
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15
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Pavlov GM, Knop K, Okatova OV, Schubert US. Star-Brush-Shaped Macromolecules: Peculiar Properties in Dilute Solution. Macromolecules 2013. [DOI: 10.1021/ma400160f] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Georges M. Pavlov
- Laboratory
of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstr. 10, 07743 Jena, Germany
- Jena
Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
- Department
of Physics, St. Petersburg University, and Institute of
Macromolecular Compounds, Russian Academy of Science, 199004 St. Petersburg, Russia
| | - Katrin Knop
- Laboratory
of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstr. 10, 07743 Jena, Germany
- Jena
Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Olga V. Okatova
- Department
of Physics, St. Petersburg University, and Institute of
Macromolecular Compounds, Russian Academy of Science, 199004 St. Petersburg, Russia
| | - Ulrich S. Schubert
- Laboratory
of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstr. 10, 07743 Jena, Germany
- Jena
Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
- Dutch Polymer Institute (DPI), P.O. Box 902, 5600 AX Eindhoven, The Netherlands
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16
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Chen SG, Yu Y, Zhao X, Ma Y, Jiang XK, Li ZT. Highly stable chiral (A)6-B supramolecular copolymers: a multivalency-based self-assembly process. J Am Chem Soc 2011; 133:11124-7. [PMID: 21721526 DOI: 10.1021/ja205059z] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A novel type of chiral layered supramolecular copolymer with high molecular weight has been assembled from a hydrogen bonded C(6)-symmetric zinc porphyrin hexamer and chiral C(3)-symmetric pyridine hexadentate linkers driven by multivalent zinc porphyrin-pyridine coordination. UV-vis, circular dichroism, and static light scattering experiments revealed that the formation of the layered supramolecular copolymers is at first dynamically controlled and then becomes thermodynamically controlled.
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Affiliation(s)
- Shi-Gui Chen
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
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17
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Schuck P, Zhao H. Editorial for the special issue of methods "Modern Analytical Ultracentrifugation". Methods 2011; 54:1-3. [PMID: 21536133 DOI: 10.1016/j.ymeth.2011.04.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/22/2011] [Indexed: 10/18/2022] Open
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18
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Whittell GR, Hager MD, Schubert US, Manners I. Functional soft materials from metallopolymers and metallosupramolecular polymers. NATURE MATERIALS 2011; 10:176-88. [PMID: 21336298 DOI: 10.1038/nmat2966] [Citation(s) in RCA: 729] [Impact Index Per Article: 56.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Synthetic polymers containing metal centres are emerging as an interesting and broad class of easily processable materials with properties and functions that complement those of state-of-the-art organic macromolecular materials. A diverse range of different metal centres can be harnessed to tune macromolecular properties, from transition- and main-group metals to lanthanides. Moreover, the linkages that bind the metal centres can vary almost continuously from strong, essentially covalent bonds that lead to irreversible or 'static' binding of the metal to weak and labile, non-covalent coordination interactions that allow for reversible, 'dynamic' or 'metallosupramolecular', binding. Here we review recent advances and challenges in the field and illustrate developments towards applications as emissive and photovoltaic materials; as optical limiters; in nanoelectronics, information storage, nanopatterning and sensing; as macromolecular catalysts and artificial enzymes; and as stimuli-responsive materials. We focus on materials in which the metal centres provide function; although they can also play a structural role, systems where this is solely their purpose have not been discussed.
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19
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Wandrey C, Hasegawa U, van der Vlies AJ, O'Neil C, Angelova N, Hubbell JA. Analytical ultracentrifugation to support the development of biomaterials and biomedical devices. Methods 2010; 54:92-100. [PMID: 21146611 DOI: 10.1016/j.ymeth.2010.12.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2010] [Revised: 11/26/2010] [Accepted: 12/03/2010] [Indexed: 11/19/2022] Open
Abstract
Analytical ultracentrifugation (AUC) primarily serves to investigate hydrodynamic and thermodynamic properties of natural and synthetic macromolecules and colloids in solution, dispersion or suspension. Beside such more conventional use, AUC can support materials development particularly by combining different optical systems, if the AUC is equipped with such, or using complementary data evaluation approaches. In this context, an Optima XL-I equipped with absorbance (AO) and interference optics (IO) was used alone or complementary to study the success of conjugation of biopolymers, to evaluate the completeness of the incorporation of macromolecules into micelles and vesicles, and to analyze the composition and homogeneity of macromolecular assemblies. The combination of AO and IO proved covalent binding of concanavalin A to dextran without macromolecular degradation as well as the formation of mixed micelles composed of two types of block copolymers. Further, AUC contributed to analyze the homogeneity, purity, size and size distribution of carbon monoxide-releasing macromolecular assemblies. These case studies revealed that the application possibilities of AUC are by far not completely discovered but can still be extended.
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Affiliation(s)
- Christine Wandrey
- Institute of Bioengineering (IBI) and Institute of Chemical Sciences and Engineering (ISIC), Ecole Polytechnique Fédérale de Lausanne, Lausanne CH-1015, Switzerland.
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20
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Zhao H, Brown PH, Balbo A, Fernández-Alonso MDC, Polishchuck N, Chaudhry C, Mayer ML, Ghirlando R, Schuck P. Accounting for solvent signal offsets in the analysis of interferometric sedimentation velocity data. Macromol Biosci 2010; 10:736-45. [PMID: 20480511 PMCID: PMC7469924 DOI: 10.1002/mabi.200900456] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Sedimentation velocity (SV) analytical ultracentrifugation has re-emerged as an important tool in the characterization of biological macromolecules and nanoparticles. The computational analysis of the evolution of the macromolecular concentration profile allows the characterization of many hydrodynamic and thermodynamic properties of the macromolecules and their interactions. The Rayleigh interference optical system is often the detection method of choice, for its usually superior data quality and the wide applicability of refractive index sensitive detection. However, the interference optical system is also sensitive to the redistribution of co-solvent molecules, which are not of primary experimental interest. In principle, their contribution can be eliminated by an exact geometric and compositional match of the sample solution and the reference solution, achieving the complete optical subtraction of unwanted buffer signals. Unfortunately, in practice, this can often not be perfectly achieved for various reasons, leading to signal offsets arising from unmatched sedimentation of solvent components. If unrecognized, this can lead to significant misfit, accompanied by significant errors in the macromolecular sedimentation parameters. In the present work, we describe an approach of computationally accounting for signals from sedimenting buffer components through explicitly modeling their redistribution with Lamm equation solutions, implemented in the software SEDFIT. We demonstrate how this can restore the SV analysis to yield a high quality fit of the data and to provide correct macromolecular sedimentation parameters.
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Affiliation(s)
- Huaying Zhao
- Dynamics of Macromolecular Assembly, Laboratory of Bioengineering and Physical Science, NIBIB, National Institutes of Health, Bethesda, Maryland, USA.
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21
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Lattuada M, Olivo C, Gauer C, Storti G, Morbidelli M. Application of asymmetric flow-field flow fractionation to the characterization of colloidal dispersions undergoing aggregation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:7062-7071. [PMID: 20143795 DOI: 10.1021/la904390h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The characterization of complex colloidal dispersions is a relevant and challenging problem in colloidal science. In this work, we show how asymmetric flow-field flow fractionation (AF4) coupled to static light scattering can be used for this purpose. As an example of complex colloidal dispersions, we have chosen two systems undergoing aggregation. The first one is a conventional polystyrene latex undergoing reaction-limited aggregation, which leads to the formation of fractal clusters with well-known structure. The second one is a dispersion of elastomeric colloidal particles made of a polymer with a low glass transition temperature, which undergoes coalescence upon aggregation. Samples are withdrawn during aggregation at fixed times, fractionated with AF4 using a two-angle static light scattering unit as a detector. We have shown that from the analysis of the ratio between the intensities of the scattered light at the two angles the cluster size distribution can be recovered, without any need for calibration based on standard elution times, provided that the geometry and scattering properties of particles and clusters are known. The nonfractionated samples have been characterized also by conventional static and dynamic light scattering to determine their average radius of gyration and hydrodynamic radius. The size distribution of coalescing particles has been investigated also through image analysis of cryo-scanning electron microscopy (SEM) pictures. The average radius of gyration and the average hydrodynamic radius of the nonfractionated samples have been calculated and successfully compared to the values obtained from the size distributions measured by AF4. In addition, the data obtained are also in good agreement with calculations made with population balance equations.
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Affiliation(s)
- Marco Lattuada
- Department of Chemistry and Applied Biosciences, Institute for Chemical- and Bioengineering, Wolfgang-Pauli-Strasse 10, CH-8093 Zürich, Switzerland
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22
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Wild A, Schlütter F, Pavlov GM, Friebe C, Festag G, Winter A, Hager MD, Cimrová V, Schubert US. π-Conjugated Donor and Donor-Acceptor Metallo-Polymers. Macromol Rapid Commun 2010; 31:868-74. [DOI: 10.1002/marc.200900889] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2009] [Revised: 02/01/2010] [Indexed: 11/10/2022]
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23
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Pavlov GM, Perevyazko I, Schubert US. Velocity Sedimentation and Intrinsic Viscosity Analysis of Polystyrene Standards with a Wide Range of Molar Masses. MACROMOL CHEM PHYS 2010. [DOI: 10.1002/macp.200900602] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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24
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Pavlov GM, Amorós D, Ott C, Zaitseva II, Garcia de la Torre J, Schubert US. Hydrodynamic Analysis of Well-Defined Flexible Linear Macromolecules of Low Molar Mass. Macromolecules 2009. [DOI: 10.1021/ma901027u] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Georges M. Pavlov
- Laboratory of Macromolecular Chemistry and Nanoscience,Eindhoven University of Technology, PO Box 513, 5600 MB Eindhoven, Netherlands
- Departments of Physics, St. Petersburg University, Ulianovskaya Str. 1, 198504 St. Petersburg, Russia
| | - Diego Amorós
- Departamento de Quimica Fisica, Universidad de Murcia, 30071, Murcia, Spain
| | - Christina Ott
- Laboratory of Macromolecular Chemistry and Nanoscience,Eindhoven University of Technology, PO Box 513, 5600 MB Eindhoven, Netherlands
| | - Inna I. Zaitseva
- Departments of Physics, St. Petersburg University, Ulianovskaya Str. 1, 198504 St. Petersburg, Russia
| | | | - Ulrich S. Schubert
- Laboratory of Macromolecular Chemistry and Nanoscience,Eindhoven University of Technology, PO Box 513, 5600 MB Eindhoven, Netherlands
- Laboratory of Organic and Macromolecular Chemistry, Friedrich-Schiller-University Jena, Humboldtstrasse 10, 07743 Jena, Germany
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25
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Illien B, Ying R. Molar mass, radius of gyration and second virial coefficient from new static light scattering equations for dilute solutions: application to 21 (macro)molecules. Chemphyschem 2009; 10:1097-105. [PMID: 19308986 DOI: 10.1002/cphc.200800490] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
New static light scattering (SLS) equations for dilute binary solutions are derived. Contrarily to the usual SLS equations [Carr-Zimm (CZ)], the new equations have no need for the experimental absolute Rayleigh ratio of a reference liquid and solely rely on the ratio of scattered intensities of solutions and solvent. The new equations, which are based on polarizability equations, take into account the usual refractive index increment partial differential n/partial differential rho(2) complemented by the solvent specific polarizability and a term proportional to the slope of the solution density rho versus the solute mass concentration rho(2) (density increment). Then all the equations are applied to 21 (macro)molecules with a wide range of molar mass (0.2<M<8000 kg mol(-1)). On the studied dataset with M<200 kg mol(-1), the new equations clearly achieve a better agreement with supplier M values. For macromolecules (M>500 kg mol(-1)), for which the scattered intensity is no longer independent of the scattering angle, the new equations give the same value of the radius of gyration as the CZ equation and consistent values of the second virial coefficient.
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Affiliation(s)
- Bertrand Illien
- Université de Nantes, UFR des Sciences et des Techniques, Laboratoire Chimie Et Interdisciplinarité, Synthèse, Analyse, Modélisation, UMR CNRS no 6230, B.P. 92208, Nantes 3, France.
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26
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Hao XT, Ryan T, Bailey MF, Smith TA. Molar Mass Determination of Water-Soluble Light-Emitting Conjugated Polymers by Fluorescence-Based Analytical Ultracentrifugation. Macromolecules 2009. [DOI: 10.1021/ma802475s] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xiao-Tao Hao
- School of Chemistry, The University of Melbourne, Victoria 3010, Australia, and Department of Biochemistry and Molecular Biology and The Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Victoria 3010, Australia
| | - Tim Ryan
- School of Chemistry, The University of Melbourne, Victoria 3010, Australia, and Department of Biochemistry and Molecular Biology and The Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Victoria 3010, Australia
| | - Michael F. Bailey
- School of Chemistry, The University of Melbourne, Victoria 3010, Australia, and Department of Biochemistry and Molecular Biology and The Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Victoria 3010, Australia
| | - Trevor A. Smith
- School of Chemistry, The University of Melbourne, Victoria 3010, Australia, and Department of Biochemistry and Molecular Biology and The Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Victoria 3010, Australia
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27
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Affiliation(s)
- Sriparna Chakrabarti
- a University of Maryland, Department of Chemistry and Biochemistry , College Park, MD, 20742, USA
| | - Lyle Isaacs
- a University of Maryland, Department of Chemistry and Biochemistry , College Park, MD, 20742, USA
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28
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Aslund A, Herland A, Hammarström P, Nilsson KPR, Jonsson BH, Inganäs O, Konradsson P. Studies of luminescent conjugated polythiophene derivatives: enhanced spectral discrimination of protein conformational states. Bioconjug Chem 2007; 18:1860-8. [PMID: 17939727 DOI: 10.1021/bc700180g] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Improved probes for amyloid fibril formation are advantageous for the early detection and better understanding of this disease-associated process. Here, we report a comparative study of eight luminescent conjugated polythiophene derivates (LCPs) and their discrimination of a protein (insulin) in the native or amyloid-like fibrillar state. For two of the LCPs, the synthesis is reported. Compared to their monomer-based analogues, trimer-based LCPs showed significantly better optical signal specificity for amyloid-like fibrils, seen from increased quantum yield and spectral shift. The trimer-based LCPs alone were highly quenched and showed little interaction with native insulin, as seen from analytical ultracentrifugation and insignificant spectral differences from the trimer-based LCP in buffered and native protein solution. Hence, the trimer-based LCPs showed enhanced discrimination between the amyloid-like fibrillar state and the corresponding native protein.
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Affiliation(s)
- Andreas Aslund
- Chemistry, IFM, Linköping University, SE-581 83, Linköping, Sweden
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29
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Schmittel M, Kalsani V, Michel C, Mal P, Ammon H, Jäckel F, Rabe JP. Towards Nanotubular Structures with Large Voids: Dynamic Heteroleptic Oligophenanthroline Metallonanoscaffolds and their Solution-State Properties. Chemistry 2007; 13:6223-37. [PMID: 17508376 DOI: 10.1002/chem.200700020] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The assembly of a rigid macrocycle with two exotopic phenanthroline binding sites in combination with linear bis- or trisphenanthrolines and copper(I) ions is used to generate nanoscale double and triple deckers, the latter showing a tubular structure. With supramolecular chemistry expanding to dynamic, large cavity, nanoscale structures, it becomes increasingly important to use robust assembly protocols as well as reliable characterization techniques. To fully elucidate and to describe the dynamic nature of metallonanoscaffolds with large voids, we applied a battery of both direct and indirect solution-state characterization methods. These methods along with the conventional direct methods provide a very useful tool for characterizing tubular nanoscaffold aggregates.
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Affiliation(s)
- Michael Schmittel
- Center of Micro and Nanochemistry and Engineering, Organische Chemie I, Universität Siegen, Adolf-Reichwein-Str. 2, 57068 Siegen, Germany.
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30
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Rasa M, Meier MAR, Schubert US. Transport of Guest Molecules by Unimolecular Micelles Evidenced in Analytical Ultracentrifugation Experiments. Macromol Rapid Commun 2007. [DOI: 10.1002/marc.200700115] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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31
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Raşa M, Lohmeijer BGG, Hofmeier H, Thijs HML, Schubert D, Schubert US, Tziatzios C. Characterization of Metallo-Supramolecular Block Copolymers by Analytical Ultracentrifugation. MACROMOL CHEM PHYS 2006. [DOI: 10.1002/macp.200600235] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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