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Hoque J, Sangaj N, Varghese S. Stimuli-Responsive Supramolecular Hydrogels and Their Applications in Regenerative Medicine. Macromol Biosci 2019; 19:e1800259. [PMID: 30295012 PMCID: PMC6333493 DOI: 10.1002/mabi.201800259] [Citation(s) in RCA: 102] [Impact Index Per Article: 20.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Revised: 09/10/2018] [Indexed: 12/16/2022]
Abstract
Supramolecular hydrogels are a class of self-assembled network structures formed via non-covalent interactions of the hydrogelators. These hydrogels capable of responding to external stimuli are considered to be smart materials due to their ability to undergo sol-gel and/or gel-sol transition upon subtle changes in their surroundings. Such stimuli-responsive hydrogels are intriguing biomaterials with applications in tissue engineering, delivery of cells and drugs, modulating tissue environment to promote innate tissue repair, and imaging for medical diagnostics among others. This review summarizes the recent developments in stimuli-responsive supramolecular hydrogels and their potential applications in regenerative medicine. Specifically, various structural aspects of supramolecular hydrogelators involved in self-assembly, the role of external stimuli in tuning/controlling their phase transitions, and how these functions could be harnessed to advance applications in regenerative medicine are focused on. Finally, the key challenges and future prospects for these versatile materials are briefly described.
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Affiliation(s)
- Jiaul Hoque
- Department of Orthopaedic Surgery, Duke University, Durham 27710, NC,
| | - Nivedita Sangaj
- Department of Orthopaedic Surgery, Duke University, Durham 27710, NC
| | - Shyni Varghese
- Department of Orthopaedic Surgery, Department of Biomedical Engineering, Department of Mechanical Engineering and Materials Science, Duke University, Durham 27710, NC
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Pei X, Huang H, Chen Y, Li C, Liu F, Li N. Modulating fluorescence anisotropy of dye-labeled DNA without involving mass amplification. Talanta 2016; 154:567-73. [DOI: 10.1016/j.talanta.2016.01.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2015] [Revised: 01/05/2016] [Accepted: 01/08/2016] [Indexed: 11/25/2022]
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Du X, Zhou J, Shi J, Xu B. Supramolecular Hydrogelators and Hydrogels: From Soft Matter to Molecular Biomaterials. Chem Rev 2015; 115:13165-307. [PMID: 26646318 PMCID: PMC4936198 DOI: 10.1021/acs.chemrev.5b00299] [Citation(s) in RCA: 1239] [Impact Index Per Article: 137.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2015] [Indexed: 12/19/2022]
Abstract
In this review we intend to provide a relatively comprehensive summary of the work of supramolecular hydrogelators after 2004 and to put emphasis particularly on the applications of supramolecular hydrogels/hydrogelators as molecular biomaterials. After a brief introduction of methods for generating supramolecular hydrogels, we discuss supramolecular hydrogelators on the basis of their categories, such as small organic molecules, coordination complexes, peptides, nucleobases, and saccharides. Following molecular design, we focus on various potential applications of supramolecular hydrogels as molecular biomaterials, classified by their applications in cell cultures, tissue engineering, cell behavior, imaging, and unique applications of hydrogelators. Particularly, we discuss the applications of supramolecular hydrogelators after they form supramolecular assemblies but prior to reaching the critical gelation concentration because this subject is less explored but may hold equally great promise for helping address fundamental questions about the mechanisms or the consequences of the self-assembly of molecules, including low molecular weight ones. Finally, we provide a perspective on supramolecular hydrogelators. We hope that this review will serve as an updated introduction and reference for researchers who are interested in exploring supramolecular hydrogelators as molecular biomaterials for addressing the societal needs at various frontiers.
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Affiliation(s)
- Xuewen Du
- Department of Chemistry, Brandeis University, 415 South Street, Waltham, Massachusetts 02454, United States
| | - Jie Zhou
- Department of Chemistry, Brandeis University, 415 South Street, Waltham, Massachusetts 02454, United States
| | - Junfeng Shi
- Department of Chemistry, Brandeis University, 415 South Street, Waltham, Massachusetts 02454, United States
| | - Bing Xu
- Department of Chemistry, Brandeis University, 415 South Street, Waltham, Massachusetts 02454, United States
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Polyaniline-poly(styrene sulfonate) conducting hydrogels reinforced by supramolecular nanofibers and used as drug carriers with electric-driven release. Eur Polym J 2015. [DOI: 10.1016/j.eurpolymj.2015.03.020] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Wang H, Wang H, Yang X, Wang Q, Yang Y. Ion-unquenchable and thermally "on-off" reversible room temperature phosphorescence of 3-bromoquinoline induced by supramolecular gels. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:486-91. [PMID: 25495995 DOI: 10.1021/la5040323] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Ion-unquenchable and thermally on-off reversible room temperature phosphorescence (RTP) can be induced by entrapping 3-bromoquinoline (3-BrQ) into supramolecular gels formed by the self-assembly of a sorbitol derivative (DBS). In comparison with conventional substrates inducing RTP, the gel state 3-BrQ/DBS can produce strong RTP due to the efficient restriction of the vibration of 3-BrQ. Notably, the rather inconvenient deoxygenation is no longer necessary in the preparation of 3-BrQ/DBS gels. The produced RTP was found to be very fast to reach stable, not depending on the standing time. As a reference, in the liquid state of 3-BrQ/sodium deoxycholate (NaDC), stable RTP can be observed after standing for 5 h. The investigation of RTP quenching indicates that the mechanism of RTP induced by DBS gels mainly involves the microenvironment in which 3-BrQ is located. 3-BrQ was entrapped in the hydrophobic 3D network structure of DBS gels, thereby restricting the motion and collision of 3-BrQ and avoiding RTP quenching and additionally quenching by ions. Furthermore, the RTP of 3-BrQ/DBS gels show an excellent "on-off" effect at 10 or 80 °C. This indicates that the solid DBS gel is beneficial for the preparation of RTP sensor devices.
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Affiliation(s)
- Hong Wang
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology , Wuhan 430074, China
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Babu SS, Praveen VK, Ajayaghosh A. Functional π-gelators and their applications. Chem Rev 2014; 114:1973-2129. [PMID: 24400783 DOI: 10.1021/cr400195e] [Citation(s) in RCA: 1220] [Impact Index Per Article: 122.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Sukumaran Santhosh Babu
- Photosciences and Photonics Group, Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST) , Trivandrum 695019, India
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Wang Q, Xiao X, Hu Y, Wang H, Yang Y. Reinforcement of phenylalanine-based supramolecular hydrogels by hybridizing poly(N-isopropylacrylamide) nanogels. RSC Adv 2014. [DOI: 10.1039/c4ra03357d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
TEAB self-assembled into a 3D network structure and nanogels were hybridized within the system, resulting in reinforced hybridized hydrogels.
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Affiliation(s)
- Qin Wang
- Key Laboratory for Large-format Battery Materials and Systems
- Ministry of Education
- Huazhong University of Science and Technology
- Wuhan 430074, China
| | - Xiao Xiao
- Key Laboratory for Large-format Battery Materials and Systems
- Ministry of Education
- Huazhong University of Science and Technology
- Wuhan 430074, China
| | - Yuandu Hu
- Key Laboratory for Large-format Battery Materials and Systems
- Ministry of Education
- Huazhong University of Science and Technology
- Wuhan 430074, China
| | - Hong Wang
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology
- Wuhan 430074, China
| | - Yajiang Yang
- Key Laboratory for Large-format Battery Materials and Systems
- Ministry of Education
- Huazhong University of Science and Technology
- Wuhan 430074, China
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Stornaiuolo M, De Kloe GE, Rucktooa P, Fish A, van Elk R, Edink ES, Bertrand D, Smit AB, de Esch IJP, Sixma TK. Assembly of a π-π stack of ligands in the binding site of an acetylcholine-binding protein. Nat Commun 2013; 4:1875. [PMID: 23695669 PMCID: PMC3674282 DOI: 10.1038/ncomms2900] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2012] [Accepted: 04/17/2013] [Indexed: 12/11/2022] Open
Abstract
Acetylcholine-binding protein is a water-soluble homologue of the extracellular ligand-binding domain of cys-loop receptors. It is used as a structurally accessible prototype for studying ligand binding to these pharmaceutically important pentameric ion channels, in particular to nicotinic acetylcholine receptors, due to conserved binding site residues present at the interface between two subunits. Here we report that an aromatic conjugated small molecule binds acetylcholine-binding protein in an ordered π-π stack of three identical molecules per binding site, two parallel and one antiparallel. Acetylcholine-binding protein stabilizes the assembly of the stack by aromatic contacts. Thanks to the plasticity of its ligand-binding site, acetylcholine-binding protein can accommodate the formation of aromatic stacks of different size by simple loop repositioning and minimal adjustment of the interactions. This type of supramolecular binding provides a novel paradigm in drug design.
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Affiliation(s)
- Mariano Stornaiuolo
- Division of Biochemistry and Center for Biomedical Genetics, Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, The Netherlands
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Di Lorenzo ML, Cocca M, Gentile G, Avella M, Gutierrez D, Della Pirriera M, Kennedy M, Ahmed H, Doran J. Thermoreversible luminescent organogels doped with Eu(TTA)3phen complex. J Colloid Interface Sci 2013; 398:95-102. [DOI: 10.1016/j.jcis.2013.02.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2012] [Revised: 01/30/2013] [Accepted: 02/02/2013] [Indexed: 11/15/2022]
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Wang H, He L, Brycki BE, Kowalczyk IH, Kuliszewska E, Yang Y. Electrochemical characterization of the hydrophobic microenvironment within gemini surfactant micellar-hybridized supramolecular gels. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2012.11.130] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Improved photostability of Vitamin A palmitate originating from self-assembled supramolecular gels. ACTA ACUST UNITED AC 2012. [DOI: 10.1007/s11434-012-5451-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Wang H, Li X, Fang F, Yang Y. Luminescence enhancement of europium(iii) originating from self-assembled supramolecular hydrogels. Dalton Trans 2010; 39:7294-300. [DOI: 10.1039/c001842b] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Xu Y, Xue P, Xu D, Zhang X, Liu X, Zhou H, Jia J, Yang X, Wang F, Lu R. Multicolor fluorescent switches in gel systems controlled by alkoxyl chain and solvent. Org Biomol Chem 2010; 8:4289-96. [DOI: 10.1039/c0ob00091d] [Citation(s) in RCA: 38] [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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