1
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New Low-Dimensional Hybrid Perovskitoids Based on Lead Bromide with Organic Cations from Charge-Transfer Complexes. CRYSTALS 2021. [DOI: 10.3390/cryst11111424] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
We have obtained a series of low-dimensional hybrid perovskitoids (often referred to as perovskites) based on lead bromide. As organic cations, the derivatives of polyaromatic and conjugated molecules, such as anthracene, pyrene and (E)-stilbene, were chosen to form charge-transfer complexes with various organic acceptors for use as highly tunable components of hybrid perovskite solar cells. X-ray diffraction analysis showed these crystalline materials to be new 1D- and pseudo-layered 0D-perovskitoids with lead bromide octahedra featuring different sharing modes, such as in unusual mini-rods of four face- and edge-shared octahedra. Thanks to the low dimensionality, they can be of use in another type of optoelectronic device, photodetectors.
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2
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Mohamadhoseini M, Mohamadnia Z. Supramolecular self-healing materials via host-guest strategy between cyclodextrin and specific types of guest molecules. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2020.213711] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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3
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Itami T, Hashidzume A, Kamon Y, Yamaguchi H, Harada A. The macroscopic shape of assemblies formed from microparticles based on host-guest interaction dependent on the guest content. Sci Rep 2021; 11:6320. [PMID: 33737714 PMCID: PMC7973530 DOI: 10.1038/s41598-021-85816-z] [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: 11/25/2020] [Accepted: 03/08/2021] [Indexed: 11/08/2022] Open
Abstract
Biological macroscopic assemblies have inspired researchers to utilize molecular recognition to develop smart materials in these decades. Recently, macroscopic self-assemblies based on molecular recognition have been realized using millimeter-scale hydrogel pieces possessing molecular recognition moieties. During the study on macroscopic self-assembly based on molecular recognition, we noticed that the shape of assemblies might be dependent on the host-guest pair. In this study, we were thus motivated to study the macroscopic shape of assemblies formed through host-guest interaction. We modified crosslinked poly(sodium acrylate) microparticles, i.e., superabsorbent polymer (SAP) microparticles, with β-cyclodextrin (βCD) and adamantyl (Ad) residues (βCD(x)-SAP and Ad(y)-SAP microparticles, respectively, where x and y denote the mol% contents of βCD and Ad residues). Then, we studied the self-assembly behavior of βCD(x)-SAP and Ad(y)-SAP microparticles through the complexation of βCD with Ad residues. There was a threshold of the βCD content in βCD(x)-SAP microparticles for assembly formation between x = 22.3 and 26.7. On the other hand, the shape of assemblies was dependent on the Ad content, y; More elongated assemblies were formed at a higher y. This may be because, at a higher y, small clusters formed in an early stage can stick together even upon collisions at a single contact point to form elongated aggregates, whereas, at a smaller y, small clusters stick together only upon collisions at multiple contact points to give rather circular assemblies. On the basis of these observations, the shape of assembly formed from microparticles can be controlled by varying y.
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Affiliation(s)
- Takahiro Itami
- Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka, 560-0043, Japan
| | - Akihito Hashidzume
- Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka, 560-0043, Japan.
| | - Yuri Kamon
- Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka, 560-0043, Japan
| | - Hiroyasu Yamaguchi
- Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka, 560-0043, Japan
| | - Akira Harada
- The Institute of Scientific and Industrial Research, Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka, 567-0047, Japan.
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4
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Wang J, Hou H, Hu Y, Lin J, Wu M, Zheng Z, Xu X. Visible-light-induced direct construction of amide bond from carboxylic acids with amines in aqueous solution. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2020.152801] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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5
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Hashidzume A, Itami T, Kamon Y, Harada A. A Simplified Model for Multivalent Interaction Competing with a Low Molecular Weight Competitor. CHEM LETT 2020. [DOI: 10.1246/cl.200501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Akihito Hashidzume
- Department of Macromolecular Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Takahiro Itami
- Department of Macromolecular Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Yuri Kamon
- Department of Macromolecular Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Akira Harada
- The Institute of Scientific and Industrial Research, Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
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6
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Hashidzume A, Yamaguchi H, Harada A. Cyclodextrin-Based Rotaxanes: from Rotaxanes to Polyrotaxanes and Further to Functional Materials. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900090] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Akihito Hashidzume
- Graduate School of Science; Osaka Univerisy; 1-1 Machikaneyama-cho Toyonaka, Osaka 560-0043 Japan
| | - Hiroyasu Yamaguchi
- Graduate School of Science; Osaka Univerisy; 1-1 Machikaneyama-cho Toyonaka, Osaka 560-0043 Japan
| | - Akira Harada
- Graduate School of Science; Osaka Univerisy; 1-1 Machikaneyama-cho Toyonaka, Osaka 560-0043 Japan
- Current address: The Institute of Scientific and Industrial Research; Osaka University; 8-1 Mihogaoka Ibaraki, Osaka 567-0047 Japan
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7
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Williams PE, Walsh-Korb Z, Jones ST, Lan Y, Scherman OA. Stress Dissipation in Cucurbit[8]uril Ternary Complex Small Molecule Adhesives. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:13104-13109. [PMID: 29965772 DOI: 10.1021/acs.langmuir.8b00894] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The ability to control supramolecular and macroscopic self-assembly and disassembly holds great potential for responsive, reversible adhesives that can efficiently broker stresses accumulated between two surfaces. Here, cucurbit[8]uril is used to directly adhere two functionalized mica substrates creating surface-surface interactions that are held together through photoreversible CB[8] heteroternary complexes. Comparison of single-molecule, bulk, and macroscopic adhesion behavior give insight into cooperativity and stress dissipation in dynamic adhesive systems.
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Affiliation(s)
- Paul E Williams
- Melville Laboratory for Polymer Synthesis, Department of Chemistry , University of Cambridge , Lensfield Road , Cambridge CB2 1EW , United Kingdom
| | - Zarah Walsh-Korb
- Melville Laboratory for Polymer Synthesis, Department of Chemistry , University of Cambridge , Lensfield Road , Cambridge CB2 1EW , United Kingdom
| | - Samuel T Jones
- Melville Laboratory for Polymer Synthesis, Department of Chemistry , University of Cambridge , Lensfield Road , Cambridge CB2 1EW , United Kingdom
| | - Yang Lan
- Melville Laboratory for Polymer Synthesis, Department of Chemistry , University of Cambridge , Lensfield Road , Cambridge CB2 1EW , United Kingdom
| | - Oren A Scherman
- Melville Laboratory for Polymer Synthesis, Department of Chemistry , University of Cambridge , Lensfield Road , Cambridge CB2 1EW , United Kingdom
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8
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Heinz D, Amado E, Kressler J. Polyphilicity-An Extension of the Concept of Amphiphilicity in Polymers. Polymers (Basel) 2018; 10:E960. [PMID: 30960885 PMCID: PMC6403972 DOI: 10.3390/polym10090960] [Citation(s) in RCA: 13] [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: 08/07/2018] [Revised: 08/23/2018] [Accepted: 08/23/2018] [Indexed: 12/12/2022] Open
Abstract
Recent developments in synthetic pathways as simple reversible-deactivation radical polymerization (RDRP) techniques and quantitative post-polymerization reactions, most notoriously 'click' reactions, leading to segmented copolymers, have broadened the molecular architectures accessible to polymer chemists as a matter of routine. Segments can be blocks, grafted chains, branchings, telechelic end-groups, covalently attached nanoparticles, nanodomains in networks, even sequences of random copolymers, and so on. In this review, we describe the variety of the segmented synthetic copolymers landscape from the point of view of their chemical affinity, or synonymous philicity, in bulk or with their surroundings, such as solvents, permeant gases, and solid surfaces. We focus on recent contributions, current trends, and perspectives regarding polyphilic copolymers, which have, in addition to hydrophilic and lipophilic segments, other philicities, for example, towards solvents, fluorophilic entities, ions, silicones, metals, nanoparticles, and liquid crystalline moieties.
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Affiliation(s)
- Daniel Heinz
- Department of Chemistry, Martin Luther University Halle-Wittenberg, D-06099 Halle (Saale), Germany.
| | - Elkin Amado
- Department of Chemistry, Martin Luther University Halle-Wittenberg, D-06099 Halle (Saale), Germany.
| | - Jörg Kressler
- Department of Chemistry, Martin Luther University Halle-Wittenberg, D-06099 Halle (Saale), Germany.
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9
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Hofman AH, van Hees IA, Yang J, Kamperman M. Bioinspired Underwater Adhesives by Using the Supramolecular Toolbox. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1704640. [PMID: 29356146 DOI: 10.1002/adma.201704640] [Citation(s) in RCA: 282] [Impact Index Per Article: 47.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Revised: 10/02/2017] [Indexed: 05/25/2023]
Abstract
Nature has developed protein-based adhesives whose underwater performance has attracted much research attention over the last few decades. The adhesive proteins are rich in catechols combined with amphiphilic and ionic features. This combination of features constitutes a supramolecular toolbox, to provide stimuli-responsive processing of the adhesive, to secure strong adhesion to a variety of surfaces, and to control the cohesive properties of the material. Here, the versatile interactions used in adhesives secreted by sandcastle worms and mussels are explored. These biological principles are then put in a broader perspective, and synthetic adhesive systems that are based on different types of supramolecular interactions are summarized. The variety and combinations of interactions that can be used in the design of new adhesive systems are highlighted.
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Affiliation(s)
- Anton H Hofman
- Physical Chemistry and Soft Matter, Wageningen University, Stippeneng 4, 6708 WE, Wageningen, The Netherlands
| | - Ilse A van Hees
- Physical Chemistry and Soft Matter, Wageningen University, Stippeneng 4, 6708 WE, Wageningen, The Netherlands
| | - Juan Yang
- Rolls-Royce@NTU Corporate Lab, Nanyang Technological University, 65 Nanyang Drive, Singapore, 637460, Singapore
| | - Marleen Kamperman
- Physical Chemistry and Soft Matter, Wageningen University, Stippeneng 4, 6708 WE, Wageningen, The Netherlands
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10
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Zheng Y, Kobayashi Y, Sekine T, Takashima Y, Hashidzume A, Yamaguchi H, Harada A. Visible chiral discrimination via macroscopic selective assembly. Commun Chem 2018. [DOI: 10.1038/s42004-017-0003-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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11
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Macroscopic Supramolecular Assembly and Its Applications. CHINESE JOURNAL OF POLYMER SCIENCE 2017. [DOI: 10.1007/s10118-018-2069-z] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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12
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Yadav S, Deka SR, Tiwari K, Sharma AK, Kumar P. Multi-Stimuli Responsive Self-Assembled Nanostructures Useful for Colon Drug Delivery. IEEE Trans Nanobioscience 2017; 16:764-772. [DOI: 10.1109/tnb.2017.2757958] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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13
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Kikuchi K, Tatewaki Y, Okada S. Synthesis and Solid-State Polymerization of a Macrocyclic Compound with Two Butadiyne Units. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2017. [DOI: 10.1246/bcsj.20160418] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Kohei Kikuchi
- Graduate School of Science and Engineering, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510
| | - Yoko Tatewaki
- Division of Applied Chemistry, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei, Tokyo 184-8588
| | - Shuji Okada
- Graduate School of Organic Materials Science, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510
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14
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Walsh-Korb Z, Yu Y, Janeček ER, Lan Y, Del Barrio J, Williams PE, Zhang X, Scherman OA. Single-Molecule Force Spectroscopy Quantification of Adhesive Forces in Cucurbit[8]Uril Host-Guest Ternary Complexes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:1343-1350. [PMID: 28055217 DOI: 10.1021/acs.langmuir.6b03457] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Cucurbit[8]uril (CB[8]) heteroternary complexes display certain characteristics making them well-suited for molecular level adhesives. In particular, careful choice of host-guest binding pairs enables specific, fully reversible adhesion. Understanding the effect of the environment is also critical when developing new molecular level adhesives. Here we explore the binding forces involved in the methyl viologen·CB[8]·naphthol heteroternary complex using single-molecule force spectroscopy (SMFS) under a variety of conditions. From SMFS, the interaction of a single ternary complex was found to be in the region of 140 pN. Additionally, a number of surface interactions could be readily differentiated using the SMFS technique allowing for a deeper understanding of the dynamic heteroternary CB[8] system on the single-molecule scale.
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Affiliation(s)
- Zarah Walsh-Korb
- Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge , Lensfield Road, Cambridge, CB2 1EW, United Kingdom
| | - Ying Yu
- Department of Chemistry, Tsinghua University , Beijing 100084, China
| | - Emma-Rose Janeček
- Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge , Lensfield Road, Cambridge, CB2 1EW, United Kingdom
| | - Yang Lan
- Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge , Lensfield Road, Cambridge, CB2 1EW, United Kingdom
| | - Jesús Del Barrio
- Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge , Lensfield Road, Cambridge, CB2 1EW, United Kingdom
| | - Paul E Williams
- Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge , Lensfield Road, Cambridge, CB2 1EW, United Kingdom
| | - Xi Zhang
- Department of Chemistry, Tsinghua University , Beijing 100084, China
| | - Oren A Scherman
- Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge , Lensfield Road, Cambridge, CB2 1EW, United Kingdom
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15
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Nakahata M, Takashima Y, Harada A. Supramolecular Polymeric Materials Containing Cyclodextrins. Chem Pharm Bull (Tokyo) 2017; 65:330-335. [DOI: 10.1248/cpb.c16-00778] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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16
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Yadav S, Deka SR, Verma G, Sharma AK, Kumar P. Photoresponsive amphiphilic azobenzene–PEG self-assembles to form supramolecular nanostructures for drug delivery applications. RSC Adv 2016. [DOI: 10.1039/c5ra26658k] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Self-assembled smart nanostructures have emerged as controlled and site-specific systems for drug delivery applications.
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Affiliation(s)
- Santosh Yadav
- Nucleic Acids Research Laboratory
- CSIR-Institute of Genomics and Integrative Biology
- Delhi 110007
- India
- Academy of Scientific and Innovative Research
| | - Smriti Rekha Deka
- Nucleic Acids Research Laboratory
- CSIR-Institute of Genomics and Integrative Biology
- Delhi 110007
- India
| | - Geeta Verma
- Nucleic Acids Research Laboratory
- CSIR-Institute of Genomics and Integrative Biology
- Delhi 110007
- India
| | - Ashwani Kumar Sharma
- Nucleic Acids Research Laboratory
- CSIR-Institute of Genomics and Integrative Biology
- Delhi 110007
- India
| | - Pradeep Kumar
- Nucleic Acids Research Laboratory
- CSIR-Institute of Genomics and Integrative Biology
- Delhi 110007
- India
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17
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Deng G, Ma Q, Yu H, Zhang Y, Yan Z, Liu F, Liu C, Jiang H, Chen Y. Macroscopic Organohydrogel Hybrid from Rapid Adhesion between Dynamic Covalent Hydrogel and Organogel. ACS Macro Lett 2015; 4:467-471. [PMID: 35596315 DOI: 10.1021/acsmacrolett.5b00096] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A macroscopic organohydrogel hybrid was prepared by fast adhesion between the hydrogel and organogel which often repel each other. The two original gels were prepared by condensation of two poly(ethylene glycol) (PEG) gelators in anisole and water, respectively. Reversible acylhydrazone bonds formed in the condensation act as linking points of the polymer networks in the gels. When the two gels were brought into contact, a robust hybridized gel was obtained in 10 min. An emulsion layer formed at the interface between the two gels and dynamic chemistry of acylhydrazone bonding are key factors in rapid adhesion of the two inherently different gels. We hope this finding will enable the development of intelligent soft objects whose macroscopic water and oil phases contain different functional components.
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Affiliation(s)
- Guohua Deng
- School
of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Qian Ma
- School
of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Hongxia Yu
- School
of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Yunfei Zhang
- School
of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Zhichao Yan
- Beijing
National Laboratory for Molecular Sciences, CAS Key Laboratory of
Engineering Plastics, Joint Laboratory of Polymer Science and Materials,
Institute of Chemistry, The Chinese Academy of Sciences, Beijing 100190, China
| | - Fuyong Liu
- Beijing
National Laboratory for Molecular Sciences, CAS Key Laboratory of
Engineering Plastics, Joint Laboratory of Polymer Science and Materials,
Institute of Chemistry, The Chinese Academy of Sciences, Beijing 100190, China
| | - Chenyang Liu
- Beijing
National Laboratory for Molecular Sciences, CAS Key Laboratory of
Engineering Plastics, Joint Laboratory of Polymer Science and Materials,
Institute of Chemistry, The Chinese Academy of Sciences, Beijing 100190, China
| | - Huanfeng Jiang
- School
of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Yongming Chen
- Key
Laboratory for Polymeric Composite and Functional Materials of Ministry
of Education, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China
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18
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Liu BW, Zhou H, Zhou ST, Yuan JY. Macromolecules based on recognition between cyclodextrin and guest molecules: Synthesis, properties and functions. Eur Polym J 2015. [DOI: 10.1016/j.eurpolymj.2015.01.017] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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19
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Kadokawa JI, Tanaka K, Hatanaka D, Yamamoto K. Preparation of multiformable supramolecular gels through helical complexation by amylose in vine-twining polymerization. Polym Chem 2015. [DOI: 10.1039/c5py00753d] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Supramolecular hydrogels with macroscopic interfacial healing behavior were obtained through helical complexation by amylose in vine-twining polymerization using poly(γ-glutamic acid-graft-ε-caprolactone), which were further converted into cryo- and ion gels.
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Affiliation(s)
- Jun-ichi Kadokawa
- Department of Chemistry
- Biotechnology
- and Chemical Engineering
- Graduate School of Science and Engineering
- Kagoshima University
| | - Kazuya Tanaka
- Department of Chemistry
- Biotechnology
- and Chemical Engineering
- Graduate School of Science and Engineering
- Kagoshima University
| | - Daisuke Hatanaka
- Department of Chemistry
- Biotechnology
- and Chemical Engineering
- Graduate School of Science and Engineering
- Kagoshima University
| | - Kazuya Yamamoto
- Department of Chemistry
- Biotechnology
- and Chemical Engineering
- Graduate School of Science and Engineering
- Kagoshima University
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20
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Buscher T, Barroso Á, Denz C, Studer A. Synthesis and photo-postmodification of zeolite L based polymer brushes. Polym Chem 2015. [DOI: 10.1039/c5py00425j] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Zeolite L macroinitiators are used for controlled radical copolymerization of a photo-active monomer and subsequent spin trapping of nitroxides results in diversely functionalized particles.
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Affiliation(s)
- Tim Buscher
- Westfälische Wilhelms-Universität Münster
- Organic Chemistry Institute
- 48149 Münster
- Germany
| | - Álvaro Barroso
- Westfälische Wilhelms-Universität Münster
- Institute of Applied Physics
- 48149 Münster
- Germany
| | - Cornelia Denz
- Westfälische Wilhelms-Universität Münster
- Institute of Applied Physics
- 48149 Münster
- Germany
| | - Armido Studer
- Westfälische Wilhelms-Universität Münster
- Organic Chemistry Institute
- 48149 Münster
- Germany
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21
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Wang J, Wang X, Yang F, Shen H, You Y, Wu D. Self-assembly behavior of a linear-star supramolecular amphiphile based on host-guest complexation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:13014-13020. [PMID: 25310380 DOI: 10.1021/la503295z] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A star polymer, β-cyclodextrin-poly(l-lactide) (β-CD-PLLA), and a linear polymer, azobenzene-poly(ethylene glycol) (Azo-PEG), could self-assemble into a supramolecular amphiphilic copolymer (β-CD-PLLA@Azo-PEG) based on the host-guest interaction between β-CD and azobenzene moieties. This linear-star supramolecular amphiphilic copolymer further self-assembled into a variety of morphologies, including sphere-like micelle, carambola-like micelle, naan-like micelle, shuttle-like lamellae, tube-like fiber, and random curled-up lamellae, by tuning the length of hydrophilic or hydrophobic chains. The variation of morphology was closely related to the topological structure and block ratio of the supramolecular amphiphiles. These self-assembly structures could disassemble upon an ultraviolet (UV) light irradiation.
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Affiliation(s)
- Juan Wang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China
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22
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Nakamura T, Takashima Y, Hashidzume A, Yamaguchi H, Harada A. A metal-ion-responsive adhesive material via switching of molecular recognition properties. Nat Commun 2014; 5:4622. [PMID: 25099995 PMCID: PMC4143919 DOI: 10.1038/ncomms5622] [Citation(s) in RCA: 94] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2014] [Accepted: 07/08/2014] [Indexed: 12/25/2022] Open
Abstract
Common adhesives stick to a wide range of materials immediately after they are applied to the surfaces. To prevent indiscriminate sticking, smart adhesive materials that adhere to a specific target surface only under particular conditions are desired. Here we report a polymer hydrogel modified with both β-cyclodextrin (βCD) and 2,2'-bipyridyl (bpy) moieties (βCD-bpy gel) as a functional adhesive material responding to metal ions as chemical stimuli. The adhesive property of βCD-bpy gel based on interfacial molecular recognition is expressed by complexation of metal ions to bpy that controlled dissociation of supramolecular cross-linking of βCD-bpy. Moreover, adhesion of βCD-bpy gel exhibits selectivity on the kinds of metal ions, depending on the efficiency of metal-bpy complexes in cross-linking. Transduction of two independent chemical signals (metal ions and host-guest interactions) is achieved in this adhesion system, which leads to the development of highly orthogonal macroscopic joining of multiple objects.
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Affiliation(s)
- Takashi Nakamura
- Department of Macromolecular Science, Graduate School of Science, Osaka University, 1-1 Machikaneyamacho, Toyonaka, Osaka 560-0043, Japan
| | - Yoshinori Takashima
- Department of Macromolecular Science, Graduate School of Science, Osaka University, 1-1 Machikaneyamacho, Toyonaka, Osaka 560-0043, Japan
| | - Akihito Hashidzume
- Department of Macromolecular Science, Graduate School of Science, Osaka University, 1-1 Machikaneyamacho, Toyonaka, Osaka 560-0043, Japan
| | - Hiroyasu Yamaguchi
- Department of Macromolecular Science, Graduate School of Science, Osaka University, 1-1 Machikaneyamacho, Toyonaka, Osaka 560-0043, Japan
| | - Akira Harada
- Department of Macromolecular Science, Graduate School of Science, Osaka University, 1-1 Machikaneyamacho, Toyonaka, Osaka 560-0043, Japan
- Japan Science and Technology Agency (JST), Core Research for Evolutional Science and Technology (CREST), 7 Gobancho, Chiyoda-ku, Tokyo 102-0076, Japan
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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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24
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Li Z, Hao A, Hao J. Formation of heat-triggered supramolecular organogel in which β-cyclodextrin as sole gelator. Colloids Surf A Physicochem Eng Asp 2014. [DOI: 10.1016/j.colsurfa.2013.08.078] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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25
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Sajisha VS, Maitra U. Remarkable isomer-selective gelation of aromatic solvents by a polymorph of a urea-linked bile acid–amino acid conjugate. RSC Adv 2014. [DOI: 10.1039/c4ra08957j] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
A urea-linked bile acid–amino acid conjugate was developed as a remarkable isomer-selective gelator for various disubstituted aromatic solvents. Polymorphism shown by the urea derivative was studied in detail which showed that only the amorphous polymorph acts as a gelator, but not the crystalline one.
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Affiliation(s)
| | - Uday Maitra
- Department of Organic Chemistry
- Indian Institute of Science
- Bangalore 560012, India
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26
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Fang W, Liu X, Lu Z, Tu T. Photoresponsive metallo-hydrogels based on visual discrimination of the positional isomers through selective thixotropic gel collapse. Chem Commun (Camb) 2014; 50:3313-6. [DOI: 10.1039/c3cc49402k] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Incorporating the visual discrimination of 2,2′-bipyridine and self-healing properties, a novel photo-switchable metallo-hydrogel system is fabricated using a pincer-type Cu(ii) complex and 2,2′-azopyridine.
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Affiliation(s)
- Weiwei Fang
- Department of Chemistry
- Fudan University
- Shanghai, China
| | - Xiyu Liu
- Department of Chemistry
- Fudan University
- Shanghai, China
| | - Zhengwei Lu
- Department of Chemistry
- Fudan University
- Shanghai, China
| | - Tao Tu
- Department of Chemistry
- Fudan University
- Shanghai, China
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Hai-xu L, Li-ming T. MACROSCOPIC SELF-ASSEMBLY OF ORGANOGELS THROUGH QUADRUPLE HYDROGEN BONDING. ACTA POLYM SIN 2013. [DOI: 10.3724/sp.j.1105.2013.13183] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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28
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Tu T, Fang W, Sun Z. Visual-size molecular recognition based on gels. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2013; 25:5304-5313. [PMID: 24089348 DOI: 10.1002/adma.201301914] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2013] [Revised: 05/28/2013] [Indexed: 06/02/2023]
Abstract
Since their discovery, stimuli-responsive organogels have garnered considerable and increasing attention from a broad range of research fields. In consideration of an one-dimensional ordered relay in anisotropic phase, the assembled gel networks can amplify various properties of the functional moieties possessed by the gelator molecules. Recently, substantial efforts have been focused on the development of facile, straightforward, and low-cost molecular recognition approaches by using nanostructured gel matrices as visual sensing platforms. In this research news, the recent progresses in macroscopic or visual-size molecular recognition for a number of homologues, isomers, and anions, as well as extremely challenging chiral enantiomers, using polymer and molecular gels are reviewed. Several strategies--including guest molecular competition, hydrogen-bonding blocking, and metal-coordination--for visual discrimination are included. Finally, the future trends and potential application in facile visual-size molecular recognition based on organogel matrices are highlighted.
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Affiliation(s)
- Tao Tu
- Department of Chemistry, Fudan University, 220 Handan Road, Shanghai, 200433 PR China.
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29
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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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30
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Affiliation(s)
- Yajuan Li
- College of Science, Hebei University of Science and Technology, Yuhua Road 70, Shijiazhuang, 050080, P.R. China
| | - Xiaojing Wang
- College of Science, Hebei University of Science and Technology, Yuhua Road 70, Shijiazhuang, 050080, P.R. China
| | - Tao Yu
- College of Science, Hebei University of Science and Technology, Yuhua Road 70, Shijiazhuang, 050080, P.R. China
| | - Zichuan Ma
- College of Chemistry and Material Sciences, Hebei Normal University, Yuhua Road 113, Shijiazhuang, 050024, P.R. China
| | - Xudong Yu
- College of Science, Hebei University of Science and Technology, Yuhua Road 70, Shijiazhuang, 050080, P.R. China
| | - Shengtao Xing
- College of Chemistry and Material Sciences, Hebei Normal University, Yuhua Road 113, Shijiazhuang, 050024, P.R. China
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31
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Zheng Y, Hashidzume A, Harada A. pH-Responsive Self-Assembly by Molecular Recognition on a Macroscopic Scale. Macromol Rapid Commun 2013; 34:1062-6. [DOI: 10.1002/marc.201300324] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2013] [Revised: 04/22/2013] [Indexed: 11/06/2022]
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32
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HARADA A. Macroscopic Self-Assembly and Self-Healing Through Molecular Recognition. KOBUNSHI RONBUNSHU 2013. [DOI: 10.1295/koron.70.617] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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