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Yang D, Liu M, Xiao X, Tao Z, Redshaw C. Polymeric self-assembled cucurbit[n]urils: Synthesis, structures and applications. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2020.213733] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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2
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Polysaccharide-based supramolecular drug delivery systems mediated via host-guest interactions of cucurbiturils. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2020.08.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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3
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Zou L, Addonizio CJ, Su B, Sis MJ, Braegelman AS, Liu D, Webber MJ. Supramolecular Hydrogels via Light-Responsive Homoternary Cross-Links. Biomacromolecules 2020; 22:171-182. [PMID: 32804483 DOI: 10.1021/acs.biomac.0c00950] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Host-guest physical cross-linking has been used to prepare supramolecular hydrogels for various biomedical applications. More recent efforts to endow these materials with stimuli-responsivity offers an opportunity to precisely tune their function for a target use. In the context of light-responsive materials, azobenzenes are one prevailing motif. Here, an asymmetric azobenzene was explored for its ability to form homoternary complexes with the cucurbit[8]uril macrocycle, exhibiting an affinity (Keq) of 6.21 × 1010 M-2 for sequential binding, though having negative cooperativity. Copolymers were first prepared from different and tunable ratios of NIPAM and DMAEA, and DMAEA groups were then postsynthetically modified with this asymmetric azobenzene. Upon macrocycle addition, these polymers formed supramolecular hydrogels; relaxation dynamics increased with temperature due to temperature-dependent affinity reduction for the ternary complex. Application of UV light disrupted the supramolecular motif through azobenzene photoisomerization, prompting a gel-to-sol transition in the hydrogel. Excitingly, within several minutes at room temperature, thermal relaxation of azobenzene to its trans state afforded rapid hydrogel recovery. By revealing this supramolecular motif and employing facile means for its attachment onto pre-synthesized polymers, the approach described here may further enable stimuli-directed control of supramolecular hydrogels for a number of applications.
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Affiliation(s)
- Lei Zou
- University of Notre Dame, Department of Chemical & Biomolecular Engineering, Notre Dame, Indiana 46556, United States
| | - Christopher J Addonizio
- University of Notre Dame, Department of Chemical & Biomolecular Engineering, Notre Dame, Indiana 46556, United States
| | - Bo Su
- University of Notre Dame, Department of Chemical & Biomolecular Engineering, Notre Dame, Indiana 46556, United States
| | - Matthew J Sis
- University of Notre Dame, Department of Chemical & Biomolecular Engineering, Notre Dame, Indiana 46556, United States
| | - Adam S Braegelman
- University of Notre Dame, Department of Chemical & Biomolecular Engineering, Notre Dame, Indiana 46556, United States
| | - Dongping Liu
- University of Notre Dame, Department of Chemical & Biomolecular Engineering, Notre Dame, Indiana 46556, United States
| | - Matthew J Webber
- University of Notre Dame, Department of Chemical & Biomolecular Engineering, Notre Dame, Indiana 46556, United States
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4
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Stimuli-chromism of photoswitches in smart polymers: Recent advances and applications as chemosensors. Prog Polym Sci 2019. [DOI: 10.1016/j.progpolymsci.2019.101149] [Citation(s) in RCA: 109] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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5
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Thomas SS, Tang H, Bohne C. Noninnocent Role of Na+ Ions in the Binding of the N-Phenyl-2-naphthylammonium Cation as a Ditopic Guest with Cucurbit[7]uril. J Am Chem Soc 2019; 141:9645-9654. [DOI: 10.1021/jacs.9b03691] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Suma S. Thomas
- Department of Chemistry and Centre for Advanced Materials and Related Technologies (CAMTEC), University of Victoria, P.O. Box 1700 STN CSC, Victoria, British Columbia V8W 2Y2, Canada
| | - Hao Tang
- Department of Chemistry and Centre for Advanced Materials and Related Technologies (CAMTEC), University of Victoria, P.O. Box 1700 STN CSC, Victoria, British Columbia V8W 2Y2, Canada
| | - Cornelia Bohne
- Department of Chemistry and Centre for Advanced Materials and Related Technologies (CAMTEC), University of Victoria, P.O. Box 1700 STN CSC, Victoria, British Columbia V8W 2Y2, Canada
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6
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Min KP, Kim GW. Photo-Rheological Fluid-Based Colorimetric Ultraviolet Light Intensity Sensor. SENSORS 2019; 19:s19051128. [PMID: 30841650 PMCID: PMC6427374 DOI: 10.3390/s19051128] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 02/26/2019] [Accepted: 02/28/2019] [Indexed: 11/16/2022]
Abstract
This study presents an introduction to a new type of ultraviolet (UV) light intensity sensor using photo-rheological (PR) fluids whose properties, such as color, can be changed by UV light. When the PR fluids were irradiated by UV light, colorimetric transitions were observed. Effectively, this means that their color changed gradually from yellow to red. The degree of the color change depended on the UV light intensity and was characterized by the hue value of the images acquired with a compact image sensor. We demonstrated that UV light-responsive capabilities can be readily imparted to PR fluids, and that the colorimetric responses to different UV light intensities can be used to measure the UV light intensities.
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Affiliation(s)
- Kyung-Pyo Min
- Department of Mechanical Engineering, Inha University, Incheon 22212, Korea.
| | - Gi-Woo Kim
- Department of Mechanical Engineering, Inha University, Incheon 22212, Korea.
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Wei J, Jin TT, Yin YF, Jiang XM, Zheng ST, Zhan TG, Cui J, Liu LJ, Kong LC, Zhang KD. Red-light-responsive molecular encapsulation in water: an ideal combination of photochemistry and host–guest interaction. Org Chem Front 2019. [DOI: 10.1039/c8qo01157e] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Red-light-responsive CB[8]-mediated host–guest system featured with high photoisomerization ratio was fabricated which could be used as molecular container with red-light-activated release ability.
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8
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Pazos E, Novo P, Peinador C, Kaifer AE, García MD. Cucurbit[8]uril (CB[8])‐Based Supramolecular Switches. Angew Chem Int Ed Engl 2018; 58:403-416. [DOI: 10.1002/anie.201806575] [Citation(s) in RCA: 96] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Indexed: 01/05/2023]
Affiliation(s)
- Elena Pazos
- Departamento de Química Facultade de Ciencias and Centro de Investigacións Científicas Avanzadas (CICA) Universidade da Coruña 15071, A Coruña Spain
| | - Paula Novo
- Departamento de Química Facultade de Ciencias and Centro de Investigacións Científicas Avanzadas (CICA) Universidade da Coruña 15071, A Coruña Spain
| | - Carlos Peinador
- Departamento de Química Facultade de Ciencias and Centro de Investigacións Científicas Avanzadas (CICA) Universidade da Coruña 15071, A Coruña Spain
| | - Angel E. Kaifer
- Department of Chemistry University of Miami Coral Gables FL 33124 USA
| | - Marcos D. García
- Departamento de Química Facultade de Ciencias and Centro de Investigacións Científicas Avanzadas (CICA) Universidade da Coruña 15071, A Coruña Spain
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9
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Pazos E, Novo P, Peinador C, Kaifer AE, García MD. Supramolekulare Schalter auf der Basis von Cucurbit[8]uril (CB[8]). Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201806575] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Elena Pazos
- Departamento de Química Facultade de Ciencias and Centro de Investigacións Científicas Avanzadas (CICA) Universidade da Coruña 15071, A Coruña Spanien
| | - Paula Novo
- Departamento de Química Facultade de Ciencias and Centro de Investigacións Científicas Avanzadas (CICA) Universidade da Coruña 15071, A Coruña Spanien
| | - Carlos Peinador
- Departamento de Química Facultade de Ciencias and Centro de Investigacións Científicas Avanzadas (CICA) Universidade da Coruña 15071, A Coruña Spanien
| | - Angel E. Kaifer
- Department of Chemistry University of Miami Coral Gables FL 33124 USA
| | - Marcos D. García
- Departamento de Química Facultade de Ciencias and Centro de Investigacións Científicas Avanzadas (CICA) Universidade da Coruña 15071, A Coruña Spanien
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10
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Zou H, Liu J, Li Y, Li X, Wang X. Cucurbit[8]uril-Based Polymers and Polymer Materials. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14:e1802234. [PMID: 30168673 DOI: 10.1002/smll.201802234] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Revised: 07/23/2018] [Indexed: 06/08/2023]
Abstract
Cucurbit[8]uril (CB[8]) is unique and notable in the cucurbit[n]uril family, since it has a relatively large cavity and thus is able to simultaneously accommodate two guest molecules. Typically, an electron-deficient first guest and an electron-rich second guest can be bound by CB[8] to form a stable 1:1:1 heteroternary supramolecular complex. Additionally, two homo guests can also be strongly dimerized inside the cavity of CB[8] to form a 2:1 homoternary supramolecular complex. During the past decade, by combining polymer science and CB[8] host-guest chemistry, a variety of systems have been established to construct supramolecular polymers with polymer chains typically at the nanoscale/sub-microscale, and CB[8]-based micro/nanostructured polymer materials in the form of polymer networks and hydrogels, microcapsules, micelles, vesicles, and colloidal particles, normally in solution and occasionally on surfaces. This Review summarizes the noncovalent interactions and strategies used for the preparation of CB[8]-based polymers and polymer materials with a focus on the representative and latest developments, followed by a brief discussion of their characterization, properties, and applications.
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Affiliation(s)
- Hua Zou
- School of Materials Science and Engineering, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai, 200093, China
| | - Jing Liu
- School of Materials Science and Engineering, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai, 200093, China
| | - Ying Li
- School of Materials Science and Engineering, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai, 200093, China
| | - Xiaoyan Li
- School of Materials Science and Engineering, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai, 200093, China
| | - Xia Wang
- School of Materials Science and Engineering, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai, 200093, China
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12
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Supramolecular complexes for nanomedicine. Bioorg Med Chem Lett 2018; 28:3290-3301. [PMID: 30227945 DOI: 10.1016/j.bmcl.2018.09.015] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Revised: 09/07/2018] [Accepted: 09/11/2018] [Indexed: 02/06/2023]
Abstract
Host-guest interactions studied in supramolecular chemistry have been inspired by interactions between enzymes and substrates. Furthermore, most of the interactions involved in the cells are based on non-covalent bonds between two or more molecules. The common aspects between supramolecular chemistry and medicine have led to the development of a "new" area called "supramolecular medicine", in which non-covalent interactions and self-assembly processes are applied within several medical fields. The object of this Digest is to offer an account of how some macrocyclic hosts (e.g. cucurbiturils, cyclodextrins, pillararenes and calixarenes) are employed in supramolecular medicine creating new supramolecular hydrogels used as biomaterials for human tissue in regenerative medicine, and a diagnostic instrument, in-vitro and in-vivo, for the detection of diseases, as well as for the investigation of cell morphology.
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13
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Jin TT, Zhou XH, Yin YF, Zhan TG, Cui J, Liu LJ, Kong LC, Zhang KD. Tunable Water-Soluble Supramolecular Polymers by Visible-Light-Regulated Host-Guest Interactions. Chem Asian J 2018; 13:2818-2823. [DOI: 10.1002/asia.201800982] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Revised: 07/05/2018] [Indexed: 12/17/2022]
Affiliation(s)
- Ting-Ting Jin
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials; College of Chemistry and Life Science; Zhejiang Normal University; 688 Yingbin Road Jinhua 321004 P. R. China
| | - Xiao-He Zhou
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials; College of Chemistry and Life Science; Zhejiang Normal University; 688 Yingbin Road Jinhua 321004 P. R. China
| | - Yong-Fei Yin
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials; College of Chemistry and Life Science; Zhejiang Normal University; 688 Yingbin Road Jinhua 321004 P. R. China
| | - Tian-Guang Zhan
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials; College of Chemistry and Life Science; Zhejiang Normal University; 688 Yingbin Road Jinhua 321004 P. R. China
| | - Jiecheng Cui
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials; College of Chemistry and Life Science; Zhejiang Normal University; 688 Yingbin Road Jinhua 321004 P. R. China
| | - Li-Juan Liu
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials; College of Chemistry and Life Science; Zhejiang Normal University; 688 Yingbin Road Jinhua 321004 P. R. China
| | - Li-Chun Kong
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials; College of Chemistry and Life Science; Zhejiang Normal University; 688 Yingbin Road Jinhua 321004 P. R. China
| | - Kang-Da Zhang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials; College of Chemistry and Life Science; Zhejiang Normal University; 688 Yingbin Road Jinhua 321004 P. R. China
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14
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Liu J, Tan CSY, Scherman OA. Dynamic Interfacial Adhesion through Cucurbit[n
]uril Molecular Recognition. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201800775] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Ji Liu
- Melville Laboratory for Polymer Synthesis; Department of Chemistry; University of Cambridge; Cambridge CB2 1EW UK
| | - Cindy Soo Yun Tan
- Melville Laboratory for Polymer Synthesis; Department of Chemistry; University of Cambridge; Cambridge CB2 1EW UK
- Faculty of Applied Sciences; Universiti Teknologi MARA; 94300 Kota Samarahan Sarawak Malaysia
| | - Oren A. Scherman
- Melville Laboratory for Polymer Synthesis; Department of Chemistry; University of Cambridge; Cambridge CB2 1EW UK
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15
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Liu J, Tan CSY, Scherman OA. Dynamic Interfacial Adhesion through Cucurbit[n
]uril Molecular Recognition. Angew Chem Int Ed Engl 2018; 57:8854-8858. [DOI: 10.1002/anie.201800775] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Indexed: 12/12/2022]
Affiliation(s)
- Ji Liu
- Melville Laboratory for Polymer Synthesis; Department of Chemistry; University of Cambridge; Cambridge CB2 1EW UK
| | - Cindy Soo Yun Tan
- Melville Laboratory for Polymer Synthesis; Department of Chemistry; University of Cambridge; Cambridge CB2 1EW UK
- Faculty of Applied Sciences; Universiti Teknologi MARA; 94300 Kota Samarahan Sarawak Malaysia
| | - Oren A. Scherman
- Melville Laboratory for Polymer Synthesis; Department of Chemistry; University of Cambridge; Cambridge CB2 1EW UK
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16
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Wang L, Li Q. Photochromism into nanosystems: towards lighting up the future nanoworld. Chem Soc Rev 2018; 47:1044-1097. [PMID: 29251304 DOI: 10.1039/c7cs00630f] [Citation(s) in RCA: 331] [Impact Index Per Article: 55.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The ability to manipulate the structure and function of promising nanosystems via energy input and external stimuli is emerging as an attractive paradigm for developing reconfigurable and programmable nanomaterials and multifunctional devices. Light stimulus manifestly represents a preferred external physical and chemical tool for in situ remote command of the functional attributes of nanomaterials and nanosystems due to its unique advantages of high spatial and temporal resolution and digital controllability. Photochromic moieties are known to undergo reversible photochemical transformations between different states with distinct properties, which have been extensively introduced into various functional nanosystems such as nanomachines, nanoparticles, nanoelectronics, supramolecular nanoassemblies, and biological nanosystems. The integration of photochromism into these nanosystems has endowed the resultant nanostructures or advanced materials with intriguing photoresponsive behaviors and more sophisticated functions. In this Review, we provide an account of the recent advancements in reversible photocontrol of the structures and functions of photochromic nanosystems and their applications. The important design concepts of such truly advanced materials are discussed, their fabrication methods are emphasized, and their applications are highlighted. The Review is concluded by briefly outlining the challenges that need to be addressed and the opportunities that can be tapped into. We hope that the review of the flourishing and vibrant topic with myriad possibilities would shine light on exploring the future nanoworld by encouraging and opening the windows to meaningful multidisciplinary cooperation of engineers from different backgrounds and scientists from the fields such as chemistry, physics, engineering, biology, nanotechnology and materials science.
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Affiliation(s)
- Ling Wang
- Liquid Crystal Institute and Chemical Physics Interdisciplinary Program, Kent State University, Kent, Ohio 44242, USA.
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17
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Wu D, Li Y, Yang J, Shen J, Zhou J, Hu Q, Yu G, Tang G, Chen X. Supramolecular Nanomedicine Constructed from Cucurbit[8]uril-Based Amphiphilic Brush Copolymer for Cancer Therapy. ACS APPLIED MATERIALS & INTERFACES 2017; 9:44392-44401. [PMID: 29205029 DOI: 10.1021/acsami.7b16734] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
An amphiphilic supramolecular brush copolymer CB[8]⊃(PEG-Np·PTPE) was constructed on the basis of a novel host-guest molecular recognition model formed by cucurbit[8]uril (CB[8]), 4,4'-bipyridinium derivative, and PEGylated naphthol (PEG-Np). In aqueous solution, the resultant supramolecular brush copolymer self-assembled into supramolecular nanoparticles (SNPs), by which the anticancer drug doxorubicin (DOX) was encapsulated in the hydrophobic core, establishing an artful Förster resonance energy transfer system with dual fluorescence quenched. With the help of intracellular reducing agents and low pH environment, the SNPs disassembled and the loaded drug molecules were released, realizing in situ visualization of the drug release via the location and magnitude of the energy transfer-dependent fluorescence variation. The cytotoxicity evaluation indicated DOX-loaded SNPs effectively inhibited cell proliferation against HeLa cells. Animal experiments demonstrated that these DOX-loaded SNPs highly accumulated in tumor tissues through the enhanced permeability and retention effect and also had a long blood circulation time. These multifunctional supramolecular nanoparticles possessing self-imaging and controllable drug release ability exhibited great potential in cancer therapy.
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Affiliation(s)
| | | | | | - Jie Shen
- School of Medicine, Zhejiang University City College , Hangzhou 310015, P. R. China
| | | | - Qinglian Hu
- College of Biotechnology and Bioengineering, Zhejiang University of Technology , Hangzhou 310014, P. R. China
| | - Guocan Yu
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health , Bethesda, Maryland 20892, United States
| | | | - Xiaoyuan Chen
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health , Bethesda, Maryland 20892, United States
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Liu J, Soo Yun Tan C, Lan Y, Scherman OA. Toward a versatile toolbox for cucurbit[ n]uril-based supramolecular hydrogel networks through in situ polymerization. JOURNAL OF POLYMER SCIENCE. PART A, POLYMER CHEMISTRY 2017; 55:3105-3109. [PMID: 28931970 PMCID: PMC5575522 DOI: 10.1002/pola.28667] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Accepted: 05/12/2017] [Indexed: 12/13/2022]
Abstract
The success of exploiting cucurbit[n]uril (CB[n])-based molecular recognition in self-assembled systems has sparked a tremendous interest in polymer and materials chemistry. In this study, polymerization in the presence of host-guest complexes is applied as a modular synthetic approach toward a diverse set of CB[8]-based supramolecular hydrogels with desirable properties, such as mechanical strength, toughness, energy dissipation, self-healing, and shear-thinning. A range of vinyl monomers, including acrylamide-, acrylate-, and imidazolium-based hydrophilic monomers, could be easily incorporated as the polymer backbones, leading to a library of CB[8] hydrogel networks. This versatile strategy explores new horizons for the construction of supramolecular hydrogel networks and materials with emergent properties in wearable and self-healable electronic devices, sensors, and structural biomaterials. © 2017 The Authors. Journal of Polymer Science Part A: Polymer Chemistry Published by Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2017, 55, 3105-3109.
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Affiliation(s)
- Ji Liu
- Melville Laboratory for Polymer SynthesisDepartment of Chemistry, University of CambridgeCambridgeCB2 1EWUnited Kingdom
| | - Cindy Soo Yun Tan
- Melville Laboratory for Polymer SynthesisDepartment of Chemistry, University of CambridgeCambridgeCB2 1EWUnited Kingdom
- Faculty of Applied SciencesUniversiti Teknologi MARAKota SamarahanSarawak94300Malaysia
| | - Yang Lan
- Melville Laboratory for Polymer SynthesisDepartment of Chemistry, University of CambridgeCambridgeCB2 1EWUnited Kingdom
| | - Oren A. Scherman
- Melville Laboratory for Polymer SynthesisDepartment of Chemistry, University of CambridgeCambridgeCB2 1EWUnited Kingdom
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Liu J, Tan CSY, Yu Z, Li N, Abell C, Scherman OA. Tough Supramolecular Polymer Networks with Extreme Stretchability and Fast Room-Temperature Self-Healing. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1605325. [PMID: 28370560 DOI: 10.1002/adma.201605325] [Citation(s) in RCA: 220] [Impact Index Per Article: 31.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2016] [Revised: 12/30/2016] [Indexed: 05/27/2023]
Abstract
Recent progress on highly tough and stretchable polymer networks has highlighted the potential of wearable electronic devices and structural biomaterials such as cartilage. For some given applications, a combination of desirable mechanical properties including stiffness, strength, toughness, damping, fatigue resistance, and self-healing ability is required. However, integrating such a rigorous set of requirements imposes substantial complexity and difficulty in the design and fabrication of these polymer networks, and has rarely been realized. Here, we describe the construction of supramolecular polymer networks through an in situ copolymerization of acrylamide and functional monomers, which are dynamically complexed with the host molecule cucurbit[8]uril (CB[8]). High molecular weight, thus sufficient chain entanglement, combined with a small-amount dynamic CB[8]-mediated non-covalent crosslinking (2.5 mol%), yields extremely stretchable and tough supramolecular polymer networks, exhibiting remarkable self-healing capability at room temperature. These supramolecular polymer networks can be stretched more than 100× their original length and are able to lift objects 2000× their weight. The reversible association/dissociation of the host-guest complexes bestows the networks with remarkable energy dissipation capability, but also facile complete self-healing at room temperature. In addition to their outstanding mechanical properties, the networks are ionically conductive and transparent. The CB[8]-based supramolecular networks are synthetically accessible in large scale and exhibit outstanding mechanical properties. They could readily lead to the promising use as wearable and self-healable electronic devices, sensors and structural biomaterials.
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Affiliation(s)
- Ji Liu
- Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge, Cambridge, CB2 1EW, UK
| | - Cindy Soo Yun Tan
- Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge, Cambridge, CB2 1EW, UK
- Faculty of Applied Sciences, Universiti Teknologi MARA, 94300, Kota Samarahan, Sarawak, Malaysia
| | - Ziyi Yu
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
| | - Nan Li
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Tennis Court Road, Cambridge, CB2 1QT, UK
| | - Chris Abell
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
| | - Oren A Scherman
- Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge, Cambridge, CB2 1EW, UK
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20
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Liu J, Tan CSY, Yu Z, Lan Y, Abell C, Scherman OA. Biomimetic Supramolecular Polymer Networks Exhibiting both Toughness and Self-Recovery. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1604951. [PMID: 28092128 DOI: 10.1002/adma.201604951] [Citation(s) in RCA: 132] [Impact Index Per Article: 18.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Revised: 11/17/2016] [Indexed: 05/27/2023]
Abstract
Biomimetic supramolecular dual networks: By mimicking the structure/function model of titin, integration of dynamic cucurbit[8]uril mediated host-guest interactions with a trace amount of covalent cross-linking leads to hierarchical dual networks with intriguing toughness, strength, elasticity, and energy dissipation properties. Dynamic host-guest interactions can be dissociated as sacrificial bonds and their facile reformation results in self-recovery of the dual network structure as well as its mechanical properties.
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Affiliation(s)
- Ji Liu
- Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge, Cambridge, CB2 1EW, UK
| | - Cindy Soo Yun Tan
- Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge, Cambridge, CB2 1EW, UK
- Faculty of Applied Sciences, Universiti Teknologi MARA, 94300, Kota Samarahan, Sarawak, Malaysia
| | - Ziyi Yu
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
| | - Yang Lan
- Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge, Cambridge, CB2 1EW, UK
| | - Chris Abell
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
| | - Oren A Scherman
- Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge, Cambridge, CB2 1EW, UK
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Ma M, Luan T, Yang M, Liu B, Wang Y, An W, Wang B, Tang R, Hao A. Self-assemblies of cyclodextrin derivatives modified by ferrocene with multiple stimulus responsiveness. SOFT MATTER 2017; 13:1534-1538. [PMID: 28134370 DOI: 10.1039/c7sm00017k] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Two novel cyclodextrin derivatives were synthesized that could self-assemble into a supramolecular polymer and gel in different solvent environments. Importantly, the obtained self-assemblies, including vesicles, micro-fibers and gels, could respond to various external stimuli efficiently.
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Affiliation(s)
- Mingfang Ma
- Key Laboratory of Colloid and Interface Chemistry of Ministry of Education and School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, P. R. China.
| | - Tianxiang Luan
- Key Laboratory of Colloid and Interface Chemistry of Ministry of Education and School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, P. R. China.
| | - Minmin Yang
- Key Laboratory of Colloid and Interface Chemistry of Ministry of Education and School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, P. R. China.
| | - Bing Liu
- Secondary Vocational School of Qihe, Qihe 251100, P. R. China
| | - Yajie Wang
- Key Laboratory of Colloid and Interface Chemistry of Ministry of Education and School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, P. R. China.
| | - Wei An
- Key Laboratory of Colloid and Interface Chemistry of Ministry of Education and School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, P. R. China.
| | - Bo Wang
- Key Laboratory of Colloid and Interface Chemistry of Ministry of Education and School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, P. R. China.
| | - Ruipeng Tang
- Key Laboratory of Colloid and Interface Chemistry of Ministry of Education and School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, P. R. China.
| | - Aiyou Hao
- Key Laboratory of Colloid and Interface Chemistry of Ministry of Education and School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, P. R. China.
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22
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Liu J, Lan Y, Yu Z, Tan CS, Parker RM, Abell C, Scherman OA. Cucurbit[n]uril-Based Microcapsules Self-Assembled within Microfluidic Droplets: A Versatile Approach for Supramolecular Architectures and Materials. Acc Chem Res 2017; 50:208-217. [PMID: 28075551 PMCID: PMC5474693 DOI: 10.1021/acs.accounts.6b00429] [Citation(s) in RCA: 147] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2016] [Indexed: 12/13/2022]
Abstract
Microencapsulation is a fundamental concept behind a wide range of daily applications ranging from paints, adhesives, and pesticides to targeted drug delivery, transport of vaccines, and self-healing concretes. The beauty of microfluidics to generate microcapsules arises from the capability of fabricating monodisperse and micrometer-scale droplets, which can lead to microcapsules/particles with fine-tuned control over size, shape, and hierarchical structure, as well as high reproducibility, efficient material usage, and high-throughput manipulation. The introduction of supramolecular chemistry, such as host-guest interactions, endows the resultant microcapsules with stimuli-responsiveness and self-adjusting capabilities, and facilitates hierarchical microstructures with tunable stability and porosity, leading to the maturity of current microencapsulation industry. Supramolecular architectures and materials have attracted immense attention over the past decade, as they open the possibility to obtain a large variety of aesthetically pleasing structures, with myriad applications in biomedicine, energy, sensing, catalysis, and biomimicry, on account of the inherent reversible and adaptive nature of supramolecular interactions. As a subset of supramolecular interactions, host-guest molecular recognition involves the formation of inclusion complexes between two or more moieties, with specific three-dimensional structures and spatial arrangements, in a highly controllable and cooperative manner. Such highly selective, strong yet dynamic interactions could be exploited as an alternative methodology for programmable and controllable engineering of supramolecular architectures and materials, exploiting reversible interactions between complementary components. Through the engineering of molecular structures, assemblies can be readily functionalized based on host-guest interactions, with desirable physicochemical characteristics. In this Account, we summarize the current state of development in the field of monodisperse supramolecular microcapsules, fabricated through the integration of traditional microfluidic techniques and interfacial host-guest chemistry, specifically cucurbit[n]uril (CB[n])-mediated host-guest interactions. Three different strategies, colloidal particle-driven assembly, interfacial condensation-driven assembly and electrostatic interaction-driven assembly, are classified and discussed in detail, presenting the methodology involved in each microcapsule formation process. We highlight the state-of-the-art in design and control over structural complexity with desirable functionality, as well as promising applications, such as cargo delivery stemming from the assembled microcapsules. On account of its dynamic nature, the CB[n]-mediated host-guest complexation has demonstrated efficient response toward various external stimuli such as UV light, pH change, redox chemistry, and competitive guests. Herein, we also demonstrate different microcapsule modalities, which are engineered with CB[n] host-guest chemistry and also can be disrupted with the aid of external stimuli, for triggered release of payloads. In addition to the overview of recent achievements and current limitations of these microcapsules, we finally summarize several perspectives on tunable cargo loading and triggered release, directions, and challenges for this technology, as well as possible strategies for further improvement, which will lead to substainitial progress of host-guest chemistry in supramolecular architectures and materials.
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Affiliation(s)
- Ji Liu
- 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
| | - Ziyi Yu
- Department
of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United
Kingdom
| | - Cindy S.Y. Tan
- Melville
Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
- Faculty
of Applied Sciences, Universiti Teknologi
MARA, 94300 Kota Samarahan, Sarawak, Malaysia
| | - Richard M. Parker
- Department
of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United
Kingdom
| | - Chris Abell
- 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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23
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Tan CSY, Agmon G, Liu J, Hoogland D, Janeček ER, Appel EA, Scherman OA. Distinguishing relaxation dynamics in transiently crosslinked polymeric networks. Polym Chem 2017. [DOI: 10.1039/c7py00574a] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Polymeric materials based on reversible non-covalent associations possess diverse mechanical behaviour, which can be orthogonally accessed through polymer molecular weight and control over physical crosslinks.
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Affiliation(s)
- Cindy Soo Yun Tan
- Melville Laboratory for Polymer Synthesis
- Department of Chemistry
- University of Cambridge
- Cambridge CB2 1EW
- UK
| | - Gillie Agmon
- Department of Materials Science & Engineering
- Stanford University
- Stanford
- USA
- Department of Bioengineering
| | - Ji Liu
- Melville Laboratory for Polymer Synthesis
- Department of Chemistry
- University of Cambridge
- Cambridge CB2 1EW
- UK
| | - Dominique Hoogland
- Melville Laboratory for Polymer Synthesis
- Department of Chemistry
- University of Cambridge
- Cambridge CB2 1EW
- UK
| | - Emma-Rose Janeček
- Melville Laboratory for Polymer Synthesis
- Department of Chemistry
- University of Cambridge
- Cambridge CB2 1EW
- UK
| | - Eric A. Appel
- Department of Materials Science & Engineering
- Stanford University
- Stanford
- USA
| | - Oren A. Scherman
- Melville Laboratory for Polymer Synthesis
- Department of Chemistry
- University of Cambridge
- Cambridge CB2 1EW
- UK
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24
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Groombridge AS, Palma A, Parker RM, Abell C, Scherman OA. Aqueous interfacial gels assembled from small molecule supramolecular polymers. Chem Sci 2016; 8:1350-1355. [PMID: 29780448 PMCID: PMC5933424 DOI: 10.1039/c6sc04103e] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Accepted: 10/07/2016] [Indexed: 12/12/2022] Open
Abstract
The successful self-assembly of a stimuli-responsive aqueous supramolecular hyperbranched polymer from small molecules and the macrocyclic host cucurbit[8]uril (CB[8]) is reported. This self-healing supramolecular network can act as a soft matter barrier at liquid–liquid interfaces.
The self-assembly of a stimuli-responsive aqueous supramolecular hyperbranched polymer from small molecules is reported. This system is composed of ditopic and tritopic guest-functionalised molecules that are able to form heteroternary supramolecular complexes with the macrocyclic host cucurbit[8]uril (CB[8]). We demonstrate that the supramolecular hyperbranched polymer formed is responsive to both photo- and chemical stimuli, exhibiting reversibility. Furthermore, this system is shown to assemble at liquid–liquid interfaces, which upon gelation, is observable on the micrometre scale. This self-healing supramolecular network can act as a soft matter barrier for aqueous microdroplets, inhibiting their coalescence.
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Affiliation(s)
- Alexander S Groombridge
- Department of Chemistry , University of Cambridge , Cambridge , CB2 1EW , UK . ; ; Tel: +44 (0) 1223 331508
| | - Aniello Palma
- Department of Chemistry , University of Cambridge , Cambridge , CB2 1EW , UK . ; ; Tel: +44 (0) 1223 331508
| | - Richard M Parker
- Department of Chemistry , University of Cambridge , Cambridge , CB2 1EW , UK . ; ; Tel: +44 (0) 1223 331508
| | - Chris Abell
- Department of Chemistry , University of Cambridge , Cambridge , CB2 1EW , UK . ; ; Tel: +44 (0) 1223 331508
| | - Oren A Scherman
- Department of Chemistry , University of Cambridge , Cambridge , CB2 1EW , UK . ; ; Tel: +44 (0) 1223 331508
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25
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Soto MA, Tiburcio J. Self-assembly of a supramolecular network with pseudo-rotaxane cross-linking nodes and its transformation into a mechanically locked structure by rotaxane formation. Chem Commun (Camb) 2016; 52:14149-14152. [DOI: 10.1039/c6cc08151g] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
A main chain poly(crown ether) macromolecule has been cross-linked with a two binding site guest to afford a stimuli-responsive supramolecular polymeric network with pseudo-rotaxane nodes.
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Affiliation(s)
- Miguel A. Soto
- Departamento de Química
- Centro de Investigación y de Estudios Avanzados (Cinvestav)
- Ciudad de México
- Mexico
| | - Jorge Tiburcio
- Departamento de Química
- Centro de Investigación y de Estudios Avanzados (Cinvestav)
- Ciudad de México
- Mexico
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26
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Liu J, Tan CSY, Lan Y, Scherman OA. Aqueous Polymer Self-Assembly Based on Cucurbit[n]uril-Mediated Host-Guest Interactions. MACROMOL CHEM PHYS 2015. [DOI: 10.1002/macp.201500295] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Ji Liu
- Melville Laboratory for Polymer Synthesis; Department of Chemistry; University of Cambridge; Cambridge CB2 1EW United Kingdom
| | - Cindy Soo Yun Tan
- Melville Laboratory for Polymer Synthesis; Department of Chemistry; University of Cambridge; Cambridge CB2 1EW United Kingdom
- Faculty of Applied Sciences; Universiti Teknologi MARA; Jalan Meranek; 94300 Kota Samarahan Sarawak Malaysia
| | - Yang Lan
- Melville Laboratory for Polymer Synthesis; Department of Chemistry; University of Cambridge; Cambridge CB2 1EW United Kingdom
| | - Oren A. Scherman
- Melville Laboratory for Polymer Synthesis; Department of Chemistry; University of Cambridge; Cambridge CB2 1EW United Kingdom
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