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Du R, Bao T, Kong D, Zhang Q, Jia X. Cyclodextrins-Based Polyrotaxanes: From Functional Polymers to Applications in Electronics and Energy Storage Materials. Chempluschem 2024; 89:e202300706. [PMID: 38567455 DOI: 10.1002/cplu.202300706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 02/11/2024] [Accepted: 03/29/2024] [Indexed: 04/04/2024]
Abstract
The concept of polyrotaxane comes from the rotaxane structure in the supramolecular field. It is a mechanically interlocked supramolecular assembly composed of linear polymer chains and cyclic molecules. Over recent decades, the synthesis and application of polyrotaxanes have seen remarkable growth. Particularly, cyclodextrin-based polyrotaxanes have been extensively reported due to the low-price raw materials, good biocompatibility, and ease of modification. Hence, it is also one of the most promising mechanically interlocking supramolecules for wide industrialization in the future. Polyrotaxanes are widely introduced into materials such as elastomers, hydrogels, and engineering polymers to improve their mechanical properties or impart functionality to the materials. In these materials, polyrotaxane acts as a slidable cross-linker to dissipate energy through sliding or assist in dispersing stress concentration in the cross-linked network, thereby enhancing the toughness of the materials. Further, the unique sliding-ring effect of cyclodextrin-based polyrotaxanes has pioneered advancements in stretchable electronics and energy storage materials. This includes their innovative use in stretchable conductive composite and binders for anodes, addressing critical challenges in these fields. In this mini-review, our focus is to highlight the current progress and potential wider applications in the future, underlining their transformative impact across various domains of material science.
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Affiliation(s)
- Ruichun Du
- Key Laboratory of High Performance Polymer Material and Technology of MOE, Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, P. R. China
| | - Tianwei Bao
- Key Laboratory of High Performance Polymer Material and Technology of MOE, Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, P. R. China
| | - Deshuo Kong
- Key Laboratory of High Performance Polymer Material and Technology of MOE, Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, P. R. China
| | - Qiuhong Zhang
- Key Laboratory of High Performance Polymer Material and Technology of MOE, Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, P. R. China
- State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing, 210093, P. R. China
| | - Xudong Jia
- Key Laboratory of High Performance Polymer Material and Technology of MOE, Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, P. R. China
- State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing, 210093, P. R. China
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2
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Kali G, Haddadzadegan S, Bernkop-Schnürch A. Cyclodextrins and derivatives in drug delivery: New developments, relevant clinical trials, and advanced products. Carbohydr Polym 2024; 324:121500. [PMID: 37985088 DOI: 10.1016/j.carbpol.2023.121500] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 09/21/2023] [Accepted: 10/13/2023] [Indexed: 11/22/2023]
Abstract
Cyclodextrins (CD) and derivatives are functional excipients that can improve the bioavailability of numerous drugs. Because of their drug solubility improving properties they are used in many pharmaceutical products. Furthermore, the stability of small molecular drugs can be improved by the incorporation in CDs and an unpleasant taste and smell can be masked. In addition to well-established CD derivatives including hydroxypropyl-β-CD, hydroxypropyl-γ-CD, methylated- β-CD and sulfobutylated- β-CD, there are promising new derivatives in development. In particular, CD-based polyrotaxanes exhibiting cellular uptake enhancing properties, CD-polymer conjugates providing sustained drug release, enhanced cellular uptake, and mucoadhesive properties, and thiolated CDs showing mucoadhesive, in situ gelling, as well as permeation and cellular uptake enhancing properties will likely result in innovative new drug delivery systems. Relevant clinical trials showed various new applications of CDs such as the formation of CD-based nanoparticles, stabilizing properties for protein drugs or the development of ready-to-use injection systems. Advanced products are making use of various benefical properties of CDs at the same time. Within this review we provide an overview on these recent developments and take an outlook on how this class of excipients will further shape the landscape of drug delivery.
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Affiliation(s)
- Gergely Kali
- Department of Pharmaceutical Technology, Institute of Pharmacy, University of Innsbruck, Innsbruck 6020, Austria
| | - Soheil Haddadzadegan
- Department of Pharmaceutical Technology, Institute of Pharmacy, University of Innsbruck, Innsbruck 6020, Austria
| | - Andreas Bernkop-Schnürch
- Department of Pharmaceutical Technology, Institute of Pharmacy, University of Innsbruck, Innsbruck 6020, Austria.
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3
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Inoue K, Ito T, Shimizu Y, Ito K, Terashima K. Cross-Linking-Filler Composite Materials of Functionalized Hexagonal Boron Nitride and Polyrotaxane Elastomer. ACS Macro Lett 2023; 12:48-53. [PMID: 36562729 DOI: 10.1021/acsmacrolett.2c00636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
This study demonstrates cross-linking-filler composites in which covalent bonds between the fillers and polymer chains act as the main cross-linking points for the development of flexible and thermally conductive materials. Cross-linking-filler composites are fabricated using functionalized hexagonal boron nitride (hBN) fillers and polyrotaxane, called slide-ring polymers. The hBN particles modified with a carbon layer were produced by plasma processing in hydroquinone aqueous solution and functionalized with isocyanate groups. As the functionalized hBN provides cross-linking points for polyrotaxane, the cross-linking-filler composites can reduce cross-linking agents among polyrotaxane and exhibit considerable flexibility. Young's moduli of the cross-linking-filler composites are much lower than those of previously reported polyrotaxane composites while retaining their toughness. These values are relatively close to those of unfilled polyrotaxane elastomers, despite containing hBN fillers with a content of 50 wt %. Thus, the cross-linking-filler composites exhibit a combination of flexibility and thermal conductivity, which few hBN/elastomer composites have achieved.
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Affiliation(s)
- Kenichi Inoue
- Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba277-8561, Japan.,AIST-UTokyo Advanced Operando-Measurement Technology Open Innovation Laboratory (OPERANDO-OIL), National Institute of Advanced Industrial Science and Technology (AIST), Kashiwa Research Complex II, 5-1-5 Kashiwanoha, Kashiwa, Chiba277-8589, Japan
| | - Tsuyohito Ito
- Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba277-8561, Japan
| | - Yoshiki Shimizu
- AIST-UTokyo Advanced Operando-Measurement Technology Open Innovation Laboratory (OPERANDO-OIL), National Institute of Advanced Industrial Science and Technology (AIST), Kashiwa Research Complex II, 5-1-5 Kashiwanoha, Kashiwa, Chiba277-8589, Japan
| | - Kohzo Ito
- Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba277-8561, Japan
| | - Kazuo Terashima
- Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba277-8561, Japan.,AIST-UTokyo Advanced Operando-Measurement Technology Open Innovation Laboratory (OPERANDO-OIL), National Institute of Advanced Industrial Science and Technology (AIST), Kashiwa Research Complex II, 5-1-5 Kashiwanoha, Kashiwa, Chiba277-8589, Japan
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4
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Mohammed AFA, Othman MH, Taharabaru T, Elamin KM, Ito K, Inoue M, El-Badry M, Saleh KI, Onodera R, Motoyama K, Higashi T. Stabilization and Movable Ligand-Modification by Folate-Appended Polyrotaxanes for Systemic Delivery of siRNA Polyplex. ACS Macro Lett 2022; 11:1225-1229. [PMID: 36215131 DOI: 10.1021/acsmacrolett.2c00462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
To achieve a systemic targeted delivery of siRNA using polymeric carriers, there is a dilemma between ligand modification and stabilization of the polyplex. Namely, ligand modification often leads to destabilization of the polyplex in the blood circulation. In fact, we previously developed cyclodextrin (CD)/polyamidoamine dendrimer conjugates (CDE) as siRNA carriers, and the interaction of CDE/siRNA was decreased by the conjugation with folate-polyethylene glycol, leading to the destabilization. To overcome this dilemma, in this study, folate-appended polyrotaxanes (Fol-PRX) were developed. Fol-PRX stabilized CDE/siRNA polyplex by intermolecularly connecting CDE molecules through a host-guest interaction between adamantane at the terminals of Fol-PRX and β-CD in the polyplex. Moreover, the intermolecular connection of the polyplex with Fol-PRX provided movable folate moieties on the surface. As a result, Fol-PRXs enhanced the in vivo antitumor activity of the polyplex after intravenous administration, suggesting their utility as the dual-functional materials for systemic delivery of siRNA polyplexes.
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Affiliation(s)
- Ahmed Fouad Abdelwahab Mohammed
- Graduate School of Pharmaceutical Sciences, Kumamoto-University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan.,Priority Organization for Innovation and Excellence, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan.,Faculty of Pharmacy, Minia University, Minia 61519, Egypt
| | - Mahmoud H Othman
- Graduate School of Pharmaceutical Sciences, Kumamoto-University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan.,Faculty of Pharmacy, Al-Azhar University, Assiut, 71524, Egypt.,Faculty of Pharmacy, Assiut University, 71515 Assiut, Egypt
| | - Toru Taharabaru
- Graduate School of Pharmaceutical Sciences, Kumamoto-University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan
| | - Khaled M Elamin
- Graduate School of Pharmaceutical Sciences, Kumamoto-University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan
| | - Kohzo Ito
- Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa City, Chiba 277-8561, Japan
| | - Masamichi Inoue
- Graduate School of Pharmaceutical Sciences, Kumamoto-University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan
| | | | - Khaled I Saleh
- Faculty of Pharmacy, Al-Azhar University, Assiut, 71524, Egypt
| | - Risako Onodera
- Graduate School of Pharmaceutical Sciences, Kumamoto-University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan
| | - Keiichi Motoyama
- Graduate School of Pharmaceutical Sciences, Kumamoto-University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan
| | - Taishi Higashi
- Graduate School of Pharmaceutical Sciences, Kumamoto-University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan.,Priority Organization for Innovation and Excellence, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan.,Institute of Industrial Nanomaterials, Kumamoto University, Kumamoto, 860-8555, Japan
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5
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Uehara S, Wang Y, Ootani Y, Ozawa N, Kubo M. Molecular-Level Elucidation of a Fracture Process in Slide-Ring Gels via Coarse-Grained Molecular Dynamics Simulations. Macromolecules 2022. [DOI: 10.1021/acs.macromol.1c01981] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Shuichi Uehara
- Institute for Materials Research, Tohoku University, 2-1-1 Katahira,
Aoba-ku, Sendai 980-8577, Japan
- Department of Materials Science, Graduate School of Engineering, Tohoku University, 6-6-02 Aoba, Aramaki, Aoba-ku, Sendai 980-8579, Japan
| | - Yang Wang
- Institute for Materials Research, Tohoku University, 2-1-1 Katahira,
Aoba-ku, Sendai 980-8577, Japan
- Department of Mechanical Systems Engineering, Graduate School of Engineering, Tohoku University, 6-6-01 Aoba, Aramaki, Aoba-ku, Sendai 980-8579, Japan
| | - Yusuke Ootani
- Institute for Materials Research, Tohoku University, 2-1-1 Katahira,
Aoba-ku, Sendai 980-8577, Japan
| | - Nobuki Ozawa
- Institute for Materials Research, Tohoku University, 2-1-1 Katahira,
Aoba-ku, Sendai 980-8577, Japan
- New Industry Creation Hatchery Center, Tohoku University, 6-6-10 Aoba, Aramaki, Aoba-ku, Sendai 980-8579, Japan
| | - Momoji Kubo
- Institute for Materials Research, Tohoku University, 2-1-1 Katahira,
Aoba-ku, Sendai 980-8577, Japan
- New Industry Creation Hatchery Center, Tohoku University, 6-6-10 Aoba, Aramaki, Aoba-ku, Sendai 980-8579, Japan
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6
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Guo F, Li K, Wu J, Wang Y, Zhang L. Sliding dynamics of ring chain on a knotted polymer in rotaxane. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.124226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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7
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Utatsu K, Kogo T, Taharabaru T, Onodera R, Motoyama K, Higashi T. Supramolecular polymer-based transformable material for reversible PEGylation of protein drugs. Mater Today Bio 2021; 12:100160. [PMID: 34841242 PMCID: PMC8605344 DOI: 10.1016/j.mtbio.2021.100160] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 11/12/2021] [Accepted: 11/13/2021] [Indexed: 12/04/2022] Open
Abstract
We herein developed a transformable mixing-type material for reversible PEGylation of protein drugs using a supramolecular backbone polymer, that is, polyrotaxane possessing both amino groups and PEG chains (PEG-NH2-PRX). We expected that PEG-NH2-PRX provides amino groups to interact with protein drugs on demand because the mobility of amino groups in PEG-NH2-PRX was high. In fact, PEG-NH2-PRX formed complexes with protein drugs efficiently compared to PEGylated amino-dextran (PEG-NH2-DEX), a control material fabricated with a macromolecular backbone polymer. Moreover, PEG-NH2-PRX markedly improved the stability of antibodies and prolonged the hypoglycemic effects of insulin without loss of bioactivity, compared to PEG-NH2-DEX. These findings suggest that the supramolecular material, PEG-NH2-PRX, is a promising reversible PEGylation material for protein drugs compared to macromolecular materials.
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Affiliation(s)
- Kosei Utatsu
- Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto, 862-0973, Japan
| | - Tetsuya Kogo
- Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto, 862-0973, Japan
| | - Toru Taharabaru
- Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto, 862-0973, Japan
| | - Risako Onodera
- Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto, 862-0973, Japan
| | - Keiichi Motoyama
- Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto, 862-0973, Japan
| | - Taishi Higashi
- Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto, 862-0973, Japan
- Priority Organization for Innovation and Excellence, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto, 862-0973, Japan
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8
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Tran JA, Madsen J, Skov AL. Novel polyrotaxane cross-linkers as a versatile platform for slide-ring silicone. BIOINSPIRATION & BIOMIMETICS 2021; 16:025002. [PMID: 33470978 DOI: 10.1088/1748-3190/abdd9f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 01/19/2021] [Indexed: 06/12/2023]
Abstract
Slide-ring elastomers have garnered a lot of interest for their potential use in dielectric elastomer actuators due to their intrinsically soft nature and high elasticity. However, the use of sliding cross-linkers has been constrained by their low miscibility with commonly used elastomer precursors and the specialized curing chemistries that are necessary for incorporating them into networks. Here, we have presented a method to produce vinyl functional polyrotaxane cross-linkers that are compatible with polysiloxanes and can be processed by industrially scalable methods. The sliding silicone films that were fabricated with these novel cross-linkers were highly extensible (>350%) and did not exhibit strain hardening even at high elongation. The composite films also retained the favorable dielectric properties of silicone elastomers such as the characteristic low dielectric loss. The modified polyrotaxanes present a robust platform for producing a new class of sliding silicone elastomers with well-defined networks structures.
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Affiliation(s)
- Jakob-Anhtu Tran
- Danish Polymer Center, Department of Chemical and Biochemical Engineering, Technical University of Denmark, Søltofts Plads, Building 227, 2800 Kgs. Lyngby, Denmark
| | - Jeppe Madsen
- Danish Polymer Center, Department of Chemical and Biochemical Engineering, Technical University of Denmark, Søltofts Plads, Building 227, 2800 Kgs. Lyngby, Denmark
| | - Anne Ladegaard Skov
- Danish Polymer Center, Department of Chemical and Biochemical Engineering, Technical University of Denmark, Søltofts Plads, Building 227, 2800 Kgs. Lyngby, Denmark
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Gao M, Lu H, Song R, Ye L, Zhang A, Feng Z. Synthesis and Characterization of Polyrotaxanes Comprising γ‐CDs and Distal Azide‐Terminated PHEMA Using Propargylamine Monosubstituted β‐CDs as End Stoppers. MACROMOL CHEM PHYS 2020. [DOI: 10.1002/macp.202000157] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Ming Gao
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications School of Materials Science and Engineering Beijing Institute of Technology Beijing 100081 China
| | - Hang Lu
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications School of Materials Science and Engineering Beijing Institute of Technology Beijing 100081 China
| | - Rong‐Hao Song
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications School of Materials Science and Engineering Beijing Institute of Technology Beijing 100081 China
| | - Lin Ye
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications School of Materials Science and Engineering Beijing Institute of Technology Beijing 100081 China
| | - Ai‐Ying Zhang
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications School of Materials Science and Engineering Beijing Institute of Technology Beijing 100081 China
| | - Zeng‐Guo Feng
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications School of Materials Science and Engineering Beijing Institute of Technology Beijing 100081 China
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10
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Su H, Chen W, Li L, Li B, Zhang ZY, Li C. Coordination-Driven Poly[2]Pseudorotaxanes in Highly Polar Organic Solvent. Front Chem 2020; 8:579. [PMID: 32850622 PMCID: PMC7406859 DOI: 10.3389/fchem.2020.00579] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Accepted: 06/04/2020] [Indexed: 11/13/2022] Open
Abstract
Self-assembly of polypseudorotaxanes in high-polar organic solvents is difficult due to remarkably weak interactions between macrocycles and axles. Reported here is a novel metal-coordinated poly[2]pseudorotaxane constructed by pillar[5]arene, 1,4-bis(4-pyridyl pyridinium)butane, and [PdCl2(PhCN)2] in highly polar organic solvent of dimethyl sulfoxide (DMSO). Utilizing a combination of 1H NMR, NOESY, DOSY, DLS, SEM, and viscosity measurements, the formation of polypseudorotaxane was shown to be dependent on the concentration of [2]pseudorotaxanes/[PdCl2(PhCN)2] and temperature. Furthermore, a temperature-responsive supramolecular gel with reversibly gel-sol transformation was obtained via spontaneous assembly of the polypseudorotaxanes at high concentrations.
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Affiliation(s)
- Hang Su
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai, China.,Department of Chemistry, Center for Supramolecular Chemistry and Catalysis, Shanghai University, Shanghai, China
| | - Wei Chen
- Department of Chemistry, Center for Supramolecular Chemistry and Catalysis, Shanghai University, Shanghai, China
| | - Liang Li
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai, China
| | - Bin Li
- Department of Chemistry, Center for Supramolecular Chemistry and Catalysis, Shanghai University, Shanghai, China
| | - Zhi-Yuan Zhang
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin, China
| | - Chunju Li
- Department of Chemistry, Center for Supramolecular Chemistry and Catalysis, Shanghai University, Shanghai, China.,Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin, China
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11
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Hanafusa A, Ando S, Ozawa S, Ito M, Hasegawa R, Mayumi K, Ito K. Viscoelastic relaxation attributed to the molecular dynamics of polyrotaxane confined in an epoxy resin network. Polym J 2020. [DOI: 10.1038/s41428-020-0373-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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12
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Yamazaki Y, Nakaya S, Ito K, Kato K. Analysis of High-Molecular-Weight Polyrotaxanes by MALDI-TOF-MS Using 3-Aminoquinoline-Based Ionic Liquid Matrix. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2020; 31:1180-1188. [PMID: 32297746 DOI: 10.1021/jasms.9b00084] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Polyrotaxane (PR) is a necklace-like supramolecule composed of cyclic components, such as cyclodextrin (CD), and a threading polymer capped with bulky end groups. PR exhibits peculiar mechanical properties attributed to the intermolecular cross-links with CD. Various CD molecules threaded on a linear PEG chain are often modified with chemical groups to add specific physicochemical properties. In general, the stoichiometry between CD and the PEG chain is a significant parameter that defines the unique physical properties of CD-based polyrotaxane (CD-PR). To date, mass spectrometry (MS) has been applied to investigate the molecular distribution of CD-PR, modifications of CD, and the threaded ratio of CD. However, only molecular weights (MWs) up to several 10s of kDa can be subjected to such analysis, whereas the MW of CD-PR used as industrial materials is much greater. Herein, we applied two ionic liquid matrices composed of 3-aminoquinoline and a high mass detector to analyze PRs using MALDI-TOF-MS. High to very high MW PRs in the range of 90-700 kDa were successfully analyzed using this method. The threaded ratio of CD was estimated from a single MW of CD, PEG, and PR. The ratios obtained were consistent with that obtained using 1H NMR. Furthermore, a single-stranded form of PR in γ-cyclodextrin threaded PR (γCD-PR) was clearly distinguished from a double-stranded form, which is only possible in γCD -PR because of its large host cavity.
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Affiliation(s)
- Yuzo Yamazaki
- Global Application Development Center, Analytical & Measuring Instruments Division, Shimadzu Corporation, 1, Nishinokyo-Kuwabaracho, Nakagyo-ku, Kyoto 604-8511, Japan
| | - Shuuichi Nakaya
- Global Application Development Center, Analytical & Measuring Instruments Division, Shimadzu Corporation, 1, Nishinokyo-Kuwabaracho, Nakagyo-ku, Kyoto 604-8511, Japan
| | - Kozo Ito
- Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan
| | - Kazuaki Kato
- Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan
- Research and Services Division of Materials Data and Integrated System, National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan
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13
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Shi CY, Zhang Q, Yu CY, Rao SJ, Yang S, Tian H, Qu DH. An Ultrastrong and Highly Stretchable Polyurethane Elastomer Enabled by a Zipper-Like Ring-Sliding Effect. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e2000345. [PMID: 32350950 DOI: 10.1002/adma.202000345] [Citation(s) in RCA: 68] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 04/04/2020] [Accepted: 04/06/2020] [Indexed: 06/11/2023]
Abstract
Elastomers with excellent mechanical properties are in substantial demand for various applications, but there is always a tradeoff between their mechanical strength and stretchability. For example, partially replacing strong covalent crosslinking by weak sacrificial bonds can enhance the stretchability but also usually decreases the mechanical strength. To surmount this inherent tradeoff, a supramolecular strategy of introducing a zipper-like sliding-ring mechanism in a hydrogen-bond-crosslinked polyurethane network is proposed. A very small amount (0.5 mol%) of an external additive (pseudo[2]rotaxane crosslinker) can dramatically increase both the mechanical strength and elongation of this polyurethane network by nearly one order of magnitude. Based on the investigation of the relationship between molecular structure and mechanical properties, this enhancement is attributable to a unique molecular-level zipper-like ring-sliding motion, which efficiently dissipates mechanical work in the solvent-free network. This research not only provides a distinct and general strategy for the construction of high-performance elastomers but also paves the way for the practical application of artificial molecular machines toward solvent-free polyurethane networks.
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Affiliation(s)
- Chen-Yu Shi
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China
| | - Qi Zhang
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China
| | - Cheng-Yuan Yu
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China
| | - Si-Jia Rao
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China
| | - Shun Yang
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China
| | - He Tian
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China
| | - Da-Hui Qu
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China
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14
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Gao M, Lu H, Song RH, Ye L, Zhang AY, Feng ZG. Polyrotaxanes created by end-capping polypseudorotaxanes self-assembled from β-CDs with distal azide terminated PHEMA using propargylamine monosubstituted β-CDs. Polym Chem 2020. [DOI: 10.1039/c9py01619h] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
When a distal azide terminated PHEMA was allowed to self-assemble with varying amounts of β-CDs in water, followed by in situ reaction with PA-β-CDs via the CuAAC, linear polyrotaxanes (PRs) and a mixture of linear and hyperbranched PRs were obtained.
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Affiliation(s)
- Ming Gao
- School of Materials Science and Engineering
- Beijing Institute of Technology
- Beijing 100081
- China
| | - Hang Lu
- School of Materials Science and Engineering
- Beijing Institute of Technology
- Beijing 100081
- China
| | - Rong-hao Song
- School of Materials Science and Engineering
- Beijing Institute of Technology
- Beijing 100081
- China
| | - Lin Ye
- School of Materials Science and Engineering
- Beijing Institute of Technology
- Beijing 100081
- China
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications
| | - Ai-ying Zhang
- School of Materials Science and Engineering
- Beijing Institute of Technology
- Beijing 100081
- China
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications
| | - Zeng-guo Feng
- School of Materials Science and Engineering
- Beijing Institute of Technology
- Beijing 100081
- China
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications
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15
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Lee DH, Tamura A, Arisaka Y, Seo JH, Yui N. Mechanically Reinforced Gelatin Hydrogels by Introducing Slidable Supramolecular Cross-Linkers. Polymers (Basel) 2019; 11:E1787. [PMID: 31683825 PMCID: PMC6918157 DOI: 10.3390/polym11111787] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 10/26/2019] [Accepted: 10/29/2019] [Indexed: 12/19/2022] Open
Abstract
Tough mechanical properties are generally required for tissue substitutes used in regeneration of damaged tissue, as these substitutes must be able to withstand the external physical force caused by stretching. Gelatin, a biopolymer derived from collagen, is a biocompatible and cell adhesive material, and is thus widely utilized as a component of biomaterials. However, the application of gelatin hydrogels as a tissue substitute is limited owing to their insufficient mechanical properties. Chemical cross-linking is a promising method to improve the mechanical properties of hydrogels. We examined the potential of the chemical cross-linking of gelatin hydrogels with carboxy-group-modified polyrotaxanes (PRXs), a supramolecular polymer comprising a poly(ethylene glycol) chain threaded into the cavity of α-cyclodextrins (α-CDs), to improve mechanical properties such as stretchability and toughness. Cross-linking gelatin hydrogels with threading α-CDs in PRXs could allow for freely mobile cross-linking points to potentially improve the mechanical properties. Indeed, the stretchability and toughness of gelatin hydrogels cross-linked with PRXs were slightly higher than those of the hydrogels with the conventional chemical cross-linkers 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide (EDC)/N-hydroxysuccinimide (NHS). In addition, the hysteresis loss of gelatin hydrogels cross-linked with PRXs after repeated stretching and relaxation cycles in a hydrated state was remarkably improved in comparison with that of conventional cross-linked hydrogels. It is considered that the freely mobile cross-linking points of gelatin hydrogels cross-linked with PRXs attenuates the stress concentration. Accordingly, gelatin hydrogels cross-linked with PRXs would provide excellent mechanical properties as biocompatible tissue substitutes exposed to a continuous external physical force.
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Affiliation(s)
- Dae Hoon Lee
- Department of Organic Biomaterials, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kanda-Surugadai, Chiyoda, Tokyo 101-0062, Japan.
| | - Atsushi Tamura
- Department of Organic Biomaterials, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kanda-Surugadai, Chiyoda, Tokyo 101-0062, Japan.
| | - Yoshinori Arisaka
- Department of Organic Biomaterials, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kanda-Surugadai, Chiyoda, Tokyo 101-0062, Japan.
| | - Ji-Hun Seo
- Department of Materials Science and Engineering, School of Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Korea.
| | - Nobuhiko Yui
- Department of Organic Biomaterials, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kanda-Surugadai, Chiyoda, Tokyo 101-0062, Japan.
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16
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Yasuda Y, Hidaka Y, Mayumi K, Yamada T, Fujimoto K, Okazaki S, Yokoyama H, Ito K. Molecular Dynamics of Polyrotaxane in Solution Investigated by Quasi-Elastic Neutron Scattering and Molecular Dynamics Simulation: Sliding Motion of Rings on Polymer. J Am Chem Soc 2019; 141:9655-9663. [PMID: 31090404 DOI: 10.1021/jacs.9b03792] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
In this study, we investigated the molecular dynamics of polyrotaxane (PR), composed of α-cyclodextrins (CDs) and a poly(ethylene glycol) (PEG) axial chain, in solution by means of quasi-elastic neutron scattering (QENS) measurements and full-atomistic molecular dynamics (MD) simulations. From QENS experiments, we estimated the diffusion coefficients of CD and PEG monomers in PR, which are in quantitative agreement with those obtained by MD simulations. By analyzing the simulation results, we succeeded, for the first time, in observing and quantifying the sliding motion of CD along a PEG chain. The diffusion coefficient for the sliding motion is almost 6 times lower than that of the translational diffusion of CD in PR at room temperature. The retardation of the sliding motion is caused by the energy barrier on PEG produced by molecular interactions between CD and PEG. We propose a simple equation to describe the diffusion coefficient of the sliding dynamics in PR by combining the Einstein-Stokes diffusion model and a one-dimensional jump diffusion model. This work provides a general strategy for the molecular designs to control the sliding motion in PR.
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Affiliation(s)
- Yusuke Yasuda
- Department of Advanced Materials Science, School of Frontier Sciences , The University of Tokyo , 5-1-5 Kashiwa-noha , Kashiwa , Chiba 277-8561 , Japan
| | - Yuta Hidaka
- Department of Advanced Materials Science, School of Frontier Sciences , The University of Tokyo , 5-1-5 Kashiwa-noha , Kashiwa , Chiba 277-8561 , Japan
| | - Koichi Mayumi
- Department of Advanced Materials Science, School of Frontier Sciences , The University of Tokyo , 5-1-5 Kashiwa-noha , Kashiwa , Chiba 277-8561 , Japan
| | - Takeshi Yamada
- Neutron Science and Technology Center , Comprehensive Research Organization for Science and Society (CROSS) , IQBRC Building, 162-1 Shirakata , Tokai, Naka , Ibaraki 319-1106 , Japan
| | - Kazushi Fujimoto
- Department of Materials Chemistry , Nagoya University , Furo-cho , Chikusa-ku, Nagoya 464-8603 , Japan
| | - Susumu Okazaki
- Department of Materials Chemistry , Nagoya University , Furo-cho , Chikusa-ku, Nagoya 464-8603 , Japan
| | - Hideaki Yokoyama
- Department of Advanced Materials Science, School of Frontier Sciences , The University of Tokyo , 5-1-5 Kashiwa-noha , Kashiwa , Chiba 277-8561 , Japan
| | - Kohzo Ito
- Department of Advanced Materials Science, School of Frontier Sciences , The University of Tokyo , 5-1-5 Kashiwa-noha , Kashiwa , Chiba 277-8561 , Japan
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17
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Pruksawan S, Samitsu S, Yokoyama H, Naito M. Homogeneously Dispersed Polyrotaxane in Epoxy Adhesive and Its Improvement in the Fracture Toughness. Macromolecules 2019. [DOI: 10.1021/acs.macromol.8b02450] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Sirawit Pruksawan
- Research and Services Division of Materials Data and Integrated System (MaDIS), National Institute for Materials Science (NIMS), 1-2-1, Sengen, Tsukuba, Ibaraki 305-0047, Japan
- Program in Materials Science and Engineering, Graduate School of Pure and Applied Sciences, University of Tsukuba, 1-1-1, Tenodai, Tsukuba, Ibaraki 305-8571, Japan
| | - Sadaki Samitsu
- Research and Services Division of Materials Data and Integrated System (MaDIS), National Institute for Materials Science (NIMS), 1-2-1, Sengen, Tsukuba, Ibaraki 305-0047, Japan
| | - Hideaki Yokoyama
- Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Toudaikasiwakyanpasu, Kashiwanoha, Kashiwa-shi, Chiba 277-8561, Japan
| | - Masanobu Naito
- Research and Services Division of Materials Data and Integrated System (MaDIS), National Institute for Materials Science (NIMS), 1-2-1, Sengen, Tsukuba, Ibaraki 305-0047, Japan
- Program in Materials Science and Engineering, Graduate School of Pure and Applied Sciences, University of Tsukuba, 1-1-1, Tenodai, Tsukuba, Ibaraki 305-8571, Japan
- Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Toudaikasiwakyanpasu, Kashiwanoha, Kashiwa-shi, Chiba 277-8561, Japan
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