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Yamamoto T, Taguchi R, Yan Z, Ejima R, Xu L, Nakahata M, Kamon Y, Hashidzume A. Interaction of Cyclodextrins with Amphiphilic Alternating Cooligomers Possessing the Dense Triazole Backbone. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:7178-7191. [PMID: 38506447 DOI: 10.1021/acs.langmuir.4c00330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/21/2024]
Abstract
The interaction of cyclodextrins (CDs) with structure-controlled polymers is expected to provide significant insights into macromolecular recognition. However, the interaction of CDs with structure-controlled polymers has been an underexamined issue of investigation. Herein, alternating amphiphilic cooligomers (oligoCnAH, where n denotes the carbon number of alkyl groups; n = 4, 8, and 12) were synthesized by copper(I)-catalyzed azide-alkyne cycloaddition polymerization of heterodimers of 4-azido-5-hexynoic acid (AH) derivatives carrying N-alkylamide and t-butyl (tBu) ester side chains, followed by hydrolysis of the tBu ester, to study the interaction of CDs with oligoCnAH by 1H NMR, nuclear Overhauser effect spectroscopy, and pulse-field-gradient spin-echo NMR. These NMR studies indicated that αCD interacted with oligoC4AH, αCD and βCD interacted with oligoC8AH, and all CDs interacted with oligoC12AH. Based on the equilibrium models proposed, the binding constants were evaluated for the binary mixtures, which showed interaction. Comparing the interactions of the CDs/oligoC12AH binary mixtures with those of the binary mixtures of CDs and alternating copolymers of sodium maleate and dodecyl vinyl ether (polyC12M), it is concluded that oligoC12AH forms less stable micelles than does polyC12M presumably because of the lower molecular weight, the hydrophilic amide groups in the side chain, and the longer interval between neighboring C12 groups in oligoC12AH.
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Affiliation(s)
- Tomoaki Yamamoto
- Department of Macromolecular Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Ryoichi Taguchi
- Department of Macromolecular Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Zijun Yan
- Department of Polymer Materials and Engineering, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Ryo Ejima
- Department of Macromolecular Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Linlin Xu
- Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Masaki Nakahata
- Department of Macromolecular Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Yuri Kamon
- Administrative Department, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Akihito Hashidzume
- Department of Macromolecular Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
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Höglsperger F, Betz T, Ravoo BJ. Reversible Photoresponsive Modulation of Osmotic Pressure via Macromolecular Host-Guest Interaction. ACS Macro Lett 2022; 11:537-542. [PMID: 35575318 DOI: 10.1021/acsmacrolett.2c00133] [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
The high spatiotemporal resolution of light as an external stimulus allows the control of shape, mechanical properties, and even forces generated by photoresponsive soft materials. For this purpose, supramolecular systems that respond readily and reversibly to photoirradiation and convert microscopic changes into macroscopic effects are needed. This work demonstrates the reversible light-responsive modulation of the osmotic pressure of an aqueous solution of an azobenzene-containing polymer (azopolymer) and α-cyclodextrin. Osmometry shows that this multivalent and photoresponsive host-guest complex can be used to modulate the concentration of solutes in the solution. Upon alternating irradiation with UV and blue light, the osmolality is reversibly switched by 28 mOsm kg-1. The switching amplitude increases linearly with the concentration of azopolymer and cyclodextrin. This drastic change in osmotic pressure is achieved by carefully designing an azopolymer that provides multivalent interactions as well as high water solubility. In this way, our study demonstrates a tunable control of colligative properties by photoinduced modulation of supramolecular interactions.
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Affiliation(s)
- Fabian Höglsperger
- Center for Soft Nanoscience and Organic Chemistry Institute, Westfälische Wilhelms-Universität Münster, Busso-Peus-Str. 10, Münster 48149, Germany
| | - Timo Betz
- Third Institute of Physics─Biophysics, University of Göttingen, Friedrich-Hund-Platz 1, 37077 Göttingen, Germany
| | - Bart Jan Ravoo
- Center for Soft Nanoscience and Organic Chemistry Institute, Westfälische Wilhelms-Universität Münster, Busso-Peus-Str. 10, Münster 48149, Germany
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Higuchi Y, Takafuji Y. [Controlling Cell Dynamics by Cell-surface Modification]. YAKUGAKU ZASSHI 2021; 141:661-665. [PMID: 33952748 DOI: 10.1248/yakushi.20-00219-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Although the concept of a drug delivery system (DDS) is usually applied to conventional drug therapy, it is also important for cell-based therapy. The surface manipulation of living cells represents a powerful tool for controlling cell behaviors in the body, such as enhancement of cell-cell interactions, targeted delivery of cells, and protection from immunological rejection. Functional groups, including amines, thiols, and carbonyls, offer excellent opportunities for chemical modification through the formation of covalent bonds with exogenous molecules. Non-natural reactive groups introduced by metabolic labeling were recently utilized for targeted chemical modification. On the other hand, noncovalent strategies are also available; two major examples are electrostatic interaction with a negative charge on the cell surface and hydrophobic insertion or interaction with the cell membrane. In this study, we analyzed factors affecting cell surface modifications using PEG-lipid and succeeded in enhancing the efficacy of modification by cyclodextrin. Then, mesenchymal stem cells (MSCs), whose therapeutic effect has been demonstrated at the clinical stage and which have been clinically used as a drug, were decorated with PEG-lipid conjugates having a targeted ligand such as peptide or scFv, which are recognized by ICAM1. The peptide or scFv decoration enhanced the cell adhesion of MSCs on cytokine treated-endothelial cells. This technique will prompt the targeted delivery of MSCs to intended therapy sites, and underscores the promise of cell surface engineering as a tool for improving cell-based therapy.
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Affiliation(s)
- Yuriko Higuchi
- Graduate School of Pharmaceutical Sciences, Kyoto University
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Lazzari F, Manfredi A, Alongi J, Marinotto D, Ferruti P, Ranucci E. d-, l- and d,l-Tryptophan-Based Polyamidoamino Acids: pH-Dependent Structuring and Fluorescent Properties. Polymers (Basel) 2019; 11:E543. [PMID: 30960527 PMCID: PMC6473350 DOI: 10.3390/polym11030543] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Revised: 03/19/2019] [Accepted: 03/20/2019] [Indexed: 12/29/2022] Open
Abstract
Chiral polyamidoamino acids were obtained by polyaddition of N,N'-methylenebisacrylamide with d-, d,l- and l-tryptophan (M-d-Trp, M-d,l-Trp and M-l-Trp). l-tryptophan/glycine copolymers, M-G-l-Trp₅, M-G-l-Trp10, M-G-l-Trp20 and M-G-l-Trp40, were prepared from l-tryptophan/glycine mixtures. These polymers were amphoteric, with acid-base properties similar to those of the parent amino acids. The l-tryptophan/glycine copolymers with high glycine content were water soluble in the pH range 2-12. M-G-l-Trp40 showed a solubility gap centred at pH 4.5 and all tryptophan homopolymers were soluble only at pH > 7. Dynamic light scattering measurements performed in their solubility ranges, namely 2-11 M-G-l-Trp₅, M-G-l-Trp10 and M-G-l-Trp20 and 7-11 for M-G-l-Trp40, M-d-Trp, M-l-Trp and M-d,l-Trp, showed that the size of all samples did not significantly vary with pH. Both M-l-Trp and M-G-l-Trp copolymers showed pH-dependent circular dichroism spectra in the wavelength interval 200⁻280 nm, revealing structuring. All samples were fluorescent. Their emission spectra were unstructured and, if normalized for their tryptophan content, almost superimposable at the same pH, providing evidence that only tryptophan governed the photoluminescence properties. Changing pH induced in all cases a slight shift of the emission wavelength maximum ascribed to the modification of the microenvironment surrounding the indole ring induced by different protonation degrees.
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Affiliation(s)
- Federica Lazzari
- Dipartimento di Chimica, Università degli Studi di Milano, via C. Golgi 19, 20133 Milano, Italy.
| | - Amedea Manfredi
- Dipartimento di Chimica, Università degli Studi di Milano, via C. Golgi 19, 20133 Milano, Italy.
| | - Jenny Alongi
- Dipartimento di Chimica, Università degli Studi di Milano, via C. Golgi 19, 20133 Milano, Italy.
| | - Daniele Marinotto
- Istituto di Scienze e Tecnologie Molecolari (ISTM-CNR), via C. Golgi 19, 20133 Milano, Italy.
| | - Paolo Ferruti
- Dipartimento di Chimica, Università degli Studi di Milano, via C. Golgi 19, 20133 Milano, Italy.
| | - Elisabetta Ranucci
- Dipartimento di Chimica, Università degli Studi di Milano, via C. Golgi 19, 20133 Milano, Italy.
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Wang J, Qiu Z, Wang Y, Li L, Guo X, Pham DT, Lincoln SF, Prud'homme RK. Supramolecular polymer assembly in aqueous solution arising from cyclodextrin host-guest complexation. Beilstein J Org Chem 2016; 12:50-72. [PMID: 26877808 PMCID: PMC4734410 DOI: 10.3762/bjoc.12.7] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2015] [Accepted: 12/11/2015] [Indexed: 01/27/2023] Open
Abstract
The employment of cyclodextrin host–guest complexation to construct supramolecular assemblies with an emphasis on polymer networks is reviewed. The main driving force for this supramolecular assembly is host–guest complexation between cyclodextrin hosts and guest groups either of which may be discrete molecular species or substituents on a polymer backbone. The effects of such complexation on properties at the molecular and macroscopic levels are discussed. It is shown that cyclodextrin complexation may be used to design functional polymer materials with tailorable properties, especially for photo-, pH-, thermo- and redox-responsiveness and self-healing.
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Affiliation(s)
- Jie Wang
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Zhiqiang Qiu
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Yiming Wang
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Li Li
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Xuhong Guo
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Duc-Truc Pham
- Departmant of Chemistry, University of Adelaide, Adelaide, SA 5005, Australia
| | - Stephen F Lincoln
- Departmant of Chemistry, University of Adelaide, Adelaide, SA 5005, Australia
| | - Robert K Prud'homme
- Department of Chemical Engineering, Princeton University, Princeton, NJ 08544, USA
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Harada A, Takashima Y, Nakahata M. Supramolecular polymeric materials via cyclodextrin-guest interactions. Acc Chem Res 2014; 47:2128-40. [PMID: 24911321 DOI: 10.1021/ar500109h] [Citation(s) in RCA: 581] [Impact Index Per Article: 58.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
CONSPECTUS: Cyclodextrins (CDs) have many attractive functions, including molecular recognition, hydrolysis, catalysis, and polymerization. One of the most important uses of CDs is for the molecular recognition of hydrophobic organic guest molecules in aqueous solutions. CDs are desirable host molecules because they are environmentally benign and offer diverse functions. This Account demonstrates some of the great advances in the development of supramolecular materials through host-guest interactions within the last 10 years. In 1990, we developed topological supramolecular complexes with CDs, polyrotaxane, and CD tubes, and these preparation methods take advantage of self-organization between the CDs and the polymers. The combination of polyrotaxane with αCD forms a hydrogel through the interaction of αCDs with the OH groups on poly(ethylene glycol). We categorized these polyrotaxane chemistries within main chain type complexes. At the same time, we studied the interactions of side chain type supramolecular complexes with CDs. In these systems the guest molecules modified the polymers and selectively formed inclusion complexes with CDs. The systems that used low molecular weight compounds did not show such selectivity with CDs. The multivalency available within the complex cooperatively enhances the selective binding of CD with guest molecules via the polymer side chains, a phenomenon that is analogous to binding patterns observed in antigen-antibody complexes. To incorporate the molecular recognition properties of CDs within the polymer side chains, we first prepared stimuli-responsive sol-gel switching materials through host-guest interactions. We chose azobenzene derivatives for their response to light and ferrocene derivatives for their response to redox conditions. The supramolecular materials were both redox-responsive and self-healing, and these properties resulted from host-guest interactions. These sol-gels with built in switches gave us insight for creating materials that were self-healing or could serve as artificial muscle. Furthermore, we developed another self-healing material with CD inclusion complexes that showed selective self-healing properties after its surface was cut. These CD self-healing materials do not include chemical cross-linkers; instead the inclusion complex of CDs with guest molecules stabilized the material's strength. However, by introducing chemical cross-linkers into the hydrogels, we produced materials that could expand and contract. The chemical cross-linked hydrogels with responsive groups bent in response to external stimuli, and the cross-linkers controlled the ratio of inclusion complexes. Furthermore, we used the molecular recognition of CDs to achieve macroscopic self-assemblies, and this chemistry can direct these macroscopic objects into even larger aggregated structures. As we have demonstrated, reversible host-guest interactions have tremendous potential for the creation of a wide variety of functional materials.
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Affiliation(s)
- Akira Harada
- Department
of Macromolecular Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
- Japan Science and Technology Agency (JST), Core Research for Evolutional Science and Technology
(CREST), 7 Gobancho, Chiyoda, Tokyo 102-0076, Japan
| | - Yoshinori Takashima
- Department
of Macromolecular Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Masaki Nakahata
- Department
of Macromolecular Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
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Mori H, Takahashi E, Ishizuki A, Nakabayashi K. Tryptophan-Containing Block Copolymers Prepared by RAFT Polymerization: Synthesis, Self-Assembly, and Chiroptical and Sensing Properties. Macromolecules 2013. [DOI: 10.1021/ma400596r] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Hideharu Mori
- Department
of Polymer Science and Engineering and ‡Department of Organic Device Engineering, Graduate School of Science and Engineering, Yamagata University, 4-3-16, Jonan, Yonezawa 992-8510, Japan
| | - Eri Takahashi
- Department
of Polymer Science and Engineering and ‡Department of Organic Device Engineering, Graduate School of Science and Engineering, Yamagata University, 4-3-16, Jonan, Yonezawa 992-8510, Japan
| | - Ai Ishizuki
- Department
of Polymer Science and Engineering and ‡Department of Organic Device Engineering, Graduate School of Science and Engineering, Yamagata University, 4-3-16, Jonan, Yonezawa 992-8510, Japan
| | - Kazuhiro Nakabayashi
- Department
of Polymer Science and Engineering and ‡Department of Organic Device Engineering, Graduate School of Science and Engineering, Yamagata University, 4-3-16, Jonan, Yonezawa 992-8510, Japan
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Harada A, Takashima Y. Macromolecular Recognition and Macroscopic Interactions by Cyclodextrins. CHEM REC 2013; 13:420-31. [DOI: 10.1002/tcr.201300006] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2013] [Indexed: 11/08/2022]
Affiliation(s)
- Akira Harada
- Department of Macromolecular Science; Graduate School of Science; Osaka University; Toyonaka Osaka 560-0043 Japan
| | - Yoshinori Takashima
- Department of Macromolecular Science; Graduate School of Science; Osaka University; Toyonaka Osaka 560-0043 Japan
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Lopez-Lopez M, Montilla F, Olivares M, Lebron JA, Moya ML, Lopez-Cornejo P. Interaction between monomers of two surfactants derived from the [Ru(2,2'-bpy)(3)](2+) complex and α, β and γ-cyclodextrins: formation of [2]- and [3]-pseudorotaxanes. Dalton Trans 2013; 42:6171-81. [PMID: 23525374 DOI: 10.1039/c3dt32197e] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two new surfactants derived from the tris(2,2'-bipyridine) ruthenium(II) complex, [Ru(2,2'-bpy)(3)](2+), were synthesized and characterized: the double-tailed [Ru(2,2'-bipy)2(4,4'-(C(11)H(23))(2)-2,2'-bipy)](2+) surfactant (RuC11) and the mono-tailed [Ru(2,2'-bipy)(2)(4-(CH(3))-4'-(C(13)H(27))-2,2'-bipy)](2+) surfactant (RuC13). The main characteristic of these species is the presence of an inorganic complex as the polar head of the surfactant with interesting luminescence properties, which were used to study the interaction of these cationic surfactants with α-, β- and γ-cyclodextrins (CD). The results showed the formation of [2]- and [3]-pseudorotaxanes. The binding constant values as well as the stoichiometry of the complexes formed were obtained; the results were confirmed, from a qualitative point of view, with NMR spectra.
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Affiliation(s)
- M Lopez-Lopez
- Departamento de Ingeniería Química, Química Física y Química, Orgánica, Universidad de Huelva, Campus El Carmen, Facultad de Ciencias Experimentales, E-21071, Spain
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Srivastava A, Singh P, Kumar R, Verma SK, Kharwar RN. Indole-based polymer and its silver nanocomposite as advanced antibacterial agents: synthetic path, kinetics of polymerization and applications. POLYM INT 2012. [DOI: 10.1002/pi.4283] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Oi W, Isobe M, Hashidzume A, Harada A. Macromolecular recognition: discrimination between human and bovine serum albumins by cyclodextrins. Macromol Rapid Commun 2011; 32:501-5. [PMID: 21433206 DOI: 10.1002/marc.201000699] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2010] [Revised: 12/06/2010] [Indexed: 11/11/2022]
Abstract
The interactions of cyclodextrins (CDs) with human serum albumin (HSA) and bovine serum albumin (BSA) were investigated by two-dimensional nuclear Overhauser effect spectroscopy (2D NOESY), steady state fluorescence, isothermal titration calorimetry, and circular dichroism spectroscopy. 2D NOESY indicates that α-CD and β-CD, but not γ-CD, interact with the aromatic amino acid residues on HSA. On the other hand, the 2D NOESY signals between CDs and BSA are not significantly correlated. Hence, CDs can discriminate the subtle protein structural differences of HSA and BSA.
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Affiliation(s)
- Wataru Oi
- Department of Macromolecular Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
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Hashidzume A, Tanaka A, Sato T. Interaction of poly(N-acryloyl-amino acids) with saccharides in aqueous media. POLYMER 2010. [DOI: 10.1016/j.polymer.2009.10.070] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Affiliation(s)
- Akira Harada
- Department of Macromolecular Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Akihito Hashidzume
- Department of Macromolecular Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Hiroyasu Yamaguchi
- Department of Macromolecular Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Yoshinori Takashima
- Department of Macromolecular Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
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Taura D, Taniguchi Y, Hashidzume A, Harada A. Macromolecular Recognition of Cyclodextrin: Inversion of Selectivity of β
-Cyclodextrin toward Adamantyl Groups Induced by Macromolecular Chains. Macromol Rapid Commun 2009; 30:1741-4. [DOI: 10.1002/marc.200900283] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2009] [Revised: 05/26/2009] [Accepted: 05/28/2009] [Indexed: 11/08/2022]
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Ren L, He L, Sun T, Dong X, Chen Y, Huang J, Wang C. Dual-Responsive Supramolecular Hydrogels from Water-Soluble PEG-Grafted Copolymers and Cyclodextrin. Macromol Biosci 2009; 9:902-10. [DOI: 10.1002/mabi.200900021] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Taura D, Hashidzume A, Okumura Y, Harada A. Cooperative Complexation of α-Cyclodextrin with Alternating Copolymers of Sodium Maleate and Dodecyl Vinyl Ether with Varying Molecular Weights. Macromolecules 2008. [DOI: 10.1021/ma800026h] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Daisuke Taura
- Department of Macromolecular Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560–0043, Japan
| | - Akihito Hashidzume
- Department of Macromolecular Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560–0043, Japan
| | - Yasushi Okumura
- Department of Macromolecular Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560–0043, Japan
| | - Akira Harada
- Department of Macromolecular Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560–0043, Japan
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Interaction of cyclodextrins with side chains of water soluble polymers: A simple model for biological molecular recognition and its utilization for stimuli-responsive systems. POLYMER 2006. [DOI: 10.1016/j.polymer.2006.06.021] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Tomatsu I, Hashidzume A, Harada A. Cyclodextrin-Based Side-Chain Polyrotaxane with Unidirectional Inclusion in Aqueous Media. Angew Chem Int Ed Engl 2006; 45:4605-8. [PMID: 16791894 DOI: 10.1002/anie.200601081] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Itsuro Tomatsu
- Department of Macromolecular Science, Graduate School of Science, Osaka University Toyonaka, Osaka 560-0043, Japan
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Tomatsu I, Hashidzume A, Harada A. Cyclodextrin-Based Side-Chain Polyrotaxane with Unidirectional Inclusion in Aqueous Media. Angew Chem Int Ed Engl 2006. [DOI: 10.1002/ange.200601081] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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