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Zhou Z, Yi Q, Xia T, Yin W, Kadi AA, Li J, Zhang Y. A photo-degradable supramolecular hydrogel for selective delivery of microRNA into 3D-cultured cells. Org Biomol Chem 2018; 15:2191-2198. [PMID: 28220178 DOI: 10.1039/c6ob02667b] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Multi-functional supramolecular hydrogels have emerged as smart biomaterials for diverse biomedical applications. Here we report a multi-functional supramolecular hydrogel formed by the conjugate of the bioactive GRGDS peptide with biaryltetrazole that is the substrate of photo-click reaction. The hydrogel was used as a biocompatible matrix to encapsulate live cells for 3D culture. The presence of the RGD epitope in the hydrogelator enhanced the interaction of the nanofiber with integrin over-expressing cells, which resulted in the selective enhancement in the miRNA delivery into the encapsulated U87 cells. The intramolecular photo-click reaction of the biaryltetrazole moiety in the hydrogelator leads to a sensitive photo-response of the hydrogel, which allowed photo-degradation of the hydrogel for release of the encapsulated live cells for further bio-assay of the intracellular species.
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Affiliation(s)
- Zhengquan Zhou
- State Key Laboratory of Analytical Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China.
| | - Qikun Yi
- State Key Laboratory of Analytical Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China.
| | - Tingting Xia
- School of Life Sciences, Nanjing University, Nanjing 210023, China
| | - Wencui Yin
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Kingdom of Saudi Arabia
| | - Adnan A Kadi
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Kingdom of Saudi Arabia
| | - Jinbo Li
- State Key Laboratory of Analytical Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China.
| | - Yan Zhang
- State Key Laboratory of Analytical Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China.
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52
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Wojciechowski JP, Martin AD, Thordarson P. Kinetically Controlled Lifetimes in Redox-Responsive Transient Supramolecular Hydrogels. J Am Chem Soc 2018; 140:2869-2874. [DOI: 10.1021/jacs.7b12198] [Citation(s) in RCA: 92] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Jonathan P. Wojciechowski
- School of Chemistry, the Australian
Centre for Nanomedicine and The ARC Centre of Excellence in Convergent
Bio-Nano Science and Technology, the University of New South Wales, Sydney, NSW 2052, Australia
| | - Adam D. Martin
- School of Chemistry, the Australian
Centre for Nanomedicine and The ARC Centre of Excellence in Convergent
Bio-Nano Science and Technology, the University of New South Wales, Sydney, NSW 2052, Australia
| | - Pall Thordarson
- School of Chemistry, the Australian
Centre for Nanomedicine and The ARC Centre of Excellence in Convergent
Bio-Nano Science and Technology, the University of New South Wales, Sydney, NSW 2052, Australia
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53
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Zhang Z, Yu J, Zhou Y, Zhang R, Song Q, Lei L, Li X. Supramolecular nanofibers of dexamethasone derivatives to form hydrogel for topical ocular drug delivery. Colloids Surf B Biointerfaces 2018; 164:436-443. [PMID: 29438842 DOI: 10.1016/j.colsurfb.2018.01.051] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Revised: 01/14/2018] [Accepted: 01/25/2018] [Indexed: 12/12/2022]
Abstract
The low bioavailability exhibits by conventional ocular formulation owing to rapid precorneal clearance and lower corneal permeability can be overcame by the application of the gelling system. In the present study, a prodrug supramolecular hydrogel derived from succinated dexamethasone (Dex-SA) was fabricated using a pH hydrolytic strategy and explored as a "self-delivery" system for ophthalmic drugs. The self-assembled Dex-SA supramolecular hydrogel exhibited a typical nano-fibrous microstructure and was thixotropic. Both dexamethasone (Dex) and Dex-SA prodrug sustainably released from Dex-SA supramolecular hydrogel in a period of 120 h in vitro release study, and the initial pH value of hydrogel significantly influence on the release ratio of Dex/Dex-SA. Furthermore, the lyophilized Dex-SA supramolecular hydrogel displayed long-term stability without causing any apparent hydrolysis of Dex-SA at -20 °C over 30 day and quickly re-formed a hydrogel after dissolving into aqueous solution. The formed Dex-SA supramolecular hydrogel had lower cytotoxicity than Dex at drug concentration up to 2.5 mM, and exhibited a comparable anti-inflammatory efficacy to a Dex sodium phosphate (Dexp) aqueous solution in lipopolysaccharide-activated RAW264.7 macrophages. Topical instillation of the Dex-SA supramolecular hydrogel showed excellent intraocular biocompatibility and it was not an irritant in rabbit eyes. More importantly, the Dex-SA supramolecular hydrogel provided a prolonged precorneal retention and significantly enhanced the ocular bioavailability over Dexp aqueous solution after topical instillation. Overall, this work illustrates an effective approach for the development of prodrug supramolecular hydrogels to extend the precorneal retention and enhance ocular bioavailability of drugs after topical instillation.
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Affiliation(s)
- Zhaoliang Zhang
- Institute of Biomedical Engineering, School of Ophthalmology & Optometry and Eye Hospital, Wenzhou Medical University, 270 Xueyuan Road, Wenzhou 325027, PR China
| | - Jing Yu
- Institute of Biomaterials and Engineering, Wenzhou Medical University, and Wenzhou Institute of Biomaterials and Engineering, Wenzhou 325035, PR China
| | - Yanfang Zhou
- Institute of Biomedical Engineering, School of Ophthalmology & Optometry and Eye Hospital, Wenzhou Medical University, 270 Xueyuan Road, Wenzhou 325027, PR China
| | - Renshu Zhang
- Institute of Biomedical Engineering, School of Ophthalmology & Optometry and Eye Hospital, Wenzhou Medical University, 270 Xueyuan Road, Wenzhou 325027, PR China
| | - Qianqian Song
- Institute of Biomedical Engineering, School of Ophthalmology & Optometry and Eye Hospital, Wenzhou Medical University, 270 Xueyuan Road, Wenzhou 325027, PR China
| | - Lei Lei
- Institute of Biomedical Engineering, School of Ophthalmology & Optometry and Eye Hospital, Wenzhou Medical University, 270 Xueyuan Road, Wenzhou 325027, PR China
| | - Xingyi Li
- Institute of Biomedical Engineering, School of Ophthalmology & Optometry and Eye Hospital, Wenzhou Medical University, 270 Xueyuan Road, Wenzhou 325027, PR China.
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54
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Mayr J, Saldías C, Díaz Díaz D. Release of small bioactive molecules from physical gels. Chem Soc Rev 2018; 47:1484-1515. [PMID: 29354818 DOI: 10.1039/c7cs00515f] [Citation(s) in RCA: 127] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Pharmaceutical drugs with low water solubility have always received great attention within the scientific community. The reduced bioavailability and the need of frequent administrations have motivated the investigation of new drug delivery systems. Within this context, drug carriers that release their payload in a sustained way and hence reduce the administration rate are highly demanded. One interesting strategy to meet these requirements is the entrapment of the drugs into gels. So far, the most investigated materials for such drug-loaded gels are derived from polymers and based on covalent linkages. However, over the last decade the use of physical (or supramolecular) gels derived from low molecular weight compounds has experienced strong growth in this field, mainly due to important properties such as injectability, stimuli responsiveness and ease of synthesis. This review summarizes the use of supramolecular gels for the encapsulation and controlled release of small therapeutic molecules.
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Affiliation(s)
- Judith Mayr
- Institut für Organische Chemie, Universität Regensburg, Universitätsstr. 31, 93040 Regensburg, Germany.
| | - César Saldías
- Departamento de Química Física, Facultad de Química, Pontificia Universidad Católica de Chile, Casella 302, Correo 22, Santiago, Chile
| | - David Díaz Díaz
- Institut für Organische Chemie, Universität Regensburg, Universitätsstr. 31, 93040 Regensburg, Germany. and Institute of Advanced Chemistry of Catalonia (IQAC-CSIC), Jordi Girona 18-26, 08034 Barcelona, Spain
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55
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Ma D, Zhang J, Zhang C, Men Y, Sun H, Li LY, Yi L, Xi Z. A highly efficient dual-diazonium reagent for protein crosslinking and construction of a virus-based gel. Org Biomol Chem 2018; 16:3353-3357. [DOI: 10.1039/c8ob00169c] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A highly efficient strategy is developed to construct a new hydrogel using tobacco mosaic virus and a new bench-stable diazonium reagent.
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Affiliation(s)
- Dejun Ma
- State Key Laboratory of Medicinal Chemical Biology
- Nankai University
- Tianjin
- China
| | - Jie Zhang
- State Key Laboratory of Organic–Inorganic Composites and Beijing Key Laboratory of Bioprocess
- Beijing University of Chemical Technology
- Beijing 100029
- China
- Department of Chemistry
| | - Changyu Zhang
- State Key Laboratory of Organic–Inorganic Composites and Beijing Key Laboratory of Bioprocess
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Yuwen Men
- State Key Laboratory of Organic–Inorganic Composites and Beijing Key Laboratory of Bioprocess
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Hongyan Sun
- Department of Chemistry
- City University of Hong Kong
- Kowloon
- P. R. China
| | - Lu-Yuan Li
- State Key Laboratory of Medicinal Chemical Biology
- Nankai University
- Tianjin
- China
| | - Long Yi
- State Key Laboratory of Organic–Inorganic Composites and Beijing Key Laboratory of Bioprocess
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Zhen Xi
- State Key Laboratory of Elemento-Organic Chemistry and Department of Chemical Biology
- National Pesticide Engineering Research Center (Tianjin)
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Nankai University
- Tianjin
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56
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NAKATSUKA E, KAKINOKI S, HIRANO Y. Design of Self-Assembling 2,5-Diketopiperadine for Antibacterial Surface. KOBUNSHI RONBUNSHU 2018. [DOI: 10.1295/koron.2017-0058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Eri NAKATSUKA
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University
| | - Sachiro KAKINOKI
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University
- Organization for Research and Development of Innovative Science and Technology (ORDIST), Kansai University
| | - Yoshiaki HIRANO
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University
- Organization for Research and Development of Innovative Science and Technology (ORDIST), Kansai University
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57
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Zhou J, Du X, Wang J, Yamagata N, Xu B. Enzyme-Instructed Self-Assembly of Peptides Containing Phosphoserine to Form Supramolecular Hydrogels as Potential Soft Biomaterials. Front Chem Sci Eng 2017; 11:509-515. [PMID: 29403673 PMCID: PMC5796776 DOI: 10.1007/s11705-017-1613-7] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Enzyme-instructed self-assembly (EISA) offers a facile approach to explore the supramolecular assemblies of small molecules in cellular milieu for a variety of biomedical applications. One of the commonly used enzymes is phosphatase, but the study of the substrates of phosphatases mainly focuses on the phosphotyrosine containing peptides. In this work, we examine the EISA of phosphoserine containing small peptides for the first time by designing and synthesizing a series of precursors containing only phosphoserine or both phosphoserine and phosphotyrosine. Conjugating a phosphoserine to the C-terminal of a well-established self-assembling peptide backbone, (naphthalene-2-ly)-acetyl-diphenylalanine (NapFF), affords a novel hydrogelation precursor for EISA. The incorporation of phosphotyrosine, another substrate of phosphatase, into the resulting precursor, provides one more enzymatic trigger on a single molecule, and meanwhile increases the precursors' propensity to aggregate after being fully dephosphorylated. Exchanging the positions of phosphorylated serine and tyrosine in the peptide backbone provides insights on how the specific molecular structures influence self-assembling behaviors of small peptides and the subsequent cellular responses. Moreover, the utilization of D-amino acids largely enhances the biostability of the peptides, thus providing a unique soft material for potential biomedical applications.
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Affiliation(s)
- Jie Zhou
- Department of Chemistry, Brandeis University, 415 South St., Waltham, MA, 02453, USA
| | - Xuewen Du
- Department of Chemistry, Brandeis University, 415 South St., Waltham, MA, 02453, USA
| | - Jiaqing Wang
- Department of Chemistry, Brandeis University, 415 South St., Waltham, MA, 02453, USA
| | - Natsuko Yamagata
- Department of Chemistry, Brandeis University, 415 South St., Waltham, MA, 02453, USA
| | - Bing Xu
- Department of Chemistry, Brandeis University, 415 South St., Waltham, MA, 02453, USA
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58
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Chan KH, Xue B, Robinson RC, Hauser CAE. Systematic Moiety Variations of Ultrashort Peptides Produce Profound Effects on Self-Assembly, Nanostructure Formation, Hydrogelation, and Phase Transition. Sci Rep 2017; 7:12897. [PMID: 29018249 PMCID: PMC5635115 DOI: 10.1038/s41598-017-12694-9] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Accepted: 09/13/2017] [Indexed: 12/18/2022] Open
Abstract
Self-assembly of small biomolecules is a prevalent phenomenon that is increasingly being recognised to hold the key to building complex structures from simple monomeric units. Small peptides, in particular ultrashort peptides containing up to seven amino acids, for which our laboratory has found many biomedical applications, exhibit immense potential in this regard. For next-generation applications, more intricate control is required over the self-assembly processes. We seek to find out how subtle moiety variation of peptides can affect self-assembly and nanostructure formation. To this end, we have selected a library of 54 tripeptides, derived from systematic moiety variations from seven tripeptides. Our study reveals that subtle structural changes in the tripeptides can exert profound effects on self-assembly, nanostructure formation, hydrogelation, and even phase transition of peptide nanostructures. By comparing the X-ray crystal structures of two tripeptides, acetylated leucine-leucine-glutamic acid (Ac-LLE) and acetylated tyrosine-leucine-aspartic acid (Ac-YLD), we obtained valuable insights into the structural factors that can influence the formation of supramolecular peptide structures. We believe that our results have major implications on the understanding of the factors that affect peptide self-assembly. In addition, our findings can potentially assist current computational efforts to predict and design self-assembling peptide systems for diverse biomedical applications.
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Affiliation(s)
- Kiat Hwa Chan
- Institute of Bioengineering and Nanotechnology, Biopolis, A*STAR (Agency for Science, Technology and Research), Singapore, 138669, Singapore. .,Division of Science, Yale-NUS College, 16 College Avenue West, Singapore, 138527, Singapore.
| | - Bo Xue
- Institute of Molecular and Cell Biology, Biopolis, A*STAR (Agency for Science, Technology and Research), Singapore, 138673, Singapore.,NUS Synthetic Biology for Clinical and Technological Innovation, Centre for Life Sciences, National University of Singapore, 28 Medical Drive, Singapore, 117456, Singapore.,Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, 8 Medical Drive, Singapore, 117597, Singapore
| | - Robert C Robinson
- Institute of Molecular and Cell Biology, Biopolis, A*STAR (Agency for Science, Technology and Research), Singapore, 138673, Singapore.,Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, 8 Medical Drive, Singapore, 117597, Singapore.,Research Institute for Interdisciplinary Science, Okayama University, Okayama, 700-8530, Japan
| | - Charlotte A E Hauser
- Institute of Bioengineering and Nanotechnology, Biopolis, A*STAR (Agency for Science, Technology and Research), Singapore, 138669, Singapore. .,Laboratory for Nanomedicine, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia.
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59
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Hu Y, Xie D, Wu Y, Lin N, Song A, Hao J. Hydrogels Based on Ag + -Modulated Assembly of 5'-Adenosine Monophosphate for Enriching Biomolecules. Chemistry 2017; 23:15721-15728. [PMID: 28833801 DOI: 10.1002/chem.201703180] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Indexed: 12/18/2022]
Abstract
Supramolecular hydrogels obtained by combining 5'-adenosine monophosphate (AMP) with Ag+ were fabricated in this work. Their gelation capability was enhanced by increasing the concentration of Ag+ or decreasing the pH. The gels are very sensitive to light, which endows them with potential applications as visible-light photosensitive materials. Coordination between the nucleobase of AMP and Ag+ , as well as π-π stacking of nucleobases, are considered to be the main driving forces for self-assembly. The hydrogels successfully achieved the encapsulation and enrichment of biomolecules. Hydrogen bonding between the amino group of guest molecules and silver nanoparticles along the nanofibers drives the enrichment and is considered to be a crucial interaction.
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Affiliation(s)
- Yuanyuan Hu
- Key Laboratory of Colloid and Interface Chemistry, & Key Laboratory of Special Aggregated Materials, Shandong University, Ministry of Education, Jinan, 250100, P.R. China
| | - Dong Xie
- Key Laboratory of Colloid and Interface Chemistry, & Key Laboratory of Special Aggregated Materials, Shandong University, Ministry of Education, Jinan, 250100, P.R. China
| | - Yang Wu
- Key Laboratory of Colloid and Interface Chemistry, & Key Laboratory of Special Aggregated Materials, Shandong University, Ministry of Education, Jinan, 250100, P.R. China
| | - Nangui Lin
- Key Laboratory of Colloid and Interface Chemistry, & Key Laboratory of Special Aggregated Materials, Shandong University, Ministry of Education, Jinan, 250100, P.R. China
| | - Aixin Song
- Key Laboratory of Colloid and Interface Chemistry, & Key Laboratory of Special Aggregated Materials, Shandong University, Ministry of Education, Jinan, 250100, P.R. China
| | - Jingcheng Hao
- Key Laboratory of Colloid and Interface Chemistry, & Key Laboratory of Special Aggregated Materials, Shandong University, Ministry of Education, Jinan, 250100, P.R. China
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60
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Wu W, Zhang Z, Xiong T, Zhao W, Jiang R, Chen H, Li X. Calcium ion coordinated dexamethasone supramolecular hydrogel as therapeutic alternative for control of non-infectious uveitis. Acta Biomater 2017; 61:157-168. [PMID: 28501709 DOI: 10.1016/j.actbio.2017.05.024] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Revised: 05/02/2017] [Accepted: 05/09/2017] [Indexed: 10/19/2022]
Abstract
Supramolecular hydrogels formed by the self-assembly of therapeutic agents have received considerable attention due to their high drug payload and carrier-free features. Herein, we constructed a dexamethasone sodium phosphate (Dex) supramolecular hydrogel in combination with Dex and calcium ion (Ca2+) and further demonstrated its therapeutic efficacy in the control of ocular inflammation. The developed supramolecular hydrogel was thoroughly characterized by rheology, TEM, FTIR and XRD. Calcium ions and Dex concentration had a marked influence on the sol-gel transition behaviour of hydrogel and the proposed Dex supramolecular hydrogel displayed thixotropic properties. The drug release rate from Dex supramolecular hydrogel was dependent on the Ca2+ concentration. In comparison with Dex aqueous solution, single intravitreal injections of Dex supramolecular hydrogel up to 30μg/eye were well tolerated without causing undesirable complications of fundus blood vessel tortuosity and lens opacity, as indicated by electroretinograms (ERGs), fundus photography and histopathology. Moreover, the administration by Dex supramolecular hydrogel exhibited a comparable anti-inflammatory efficacy to native Dex solution on an experimental autoimmune uveitis (EAU) model induced in Lewis rats with IRBP peptide and the therapeutic efficacy had in a dosage-dependent manner. Histological observation and cytokines measurements indicated that both Dex solution and Dex supramolecular hydrogel (30μg/eye) treatment could significantly attenuate the inflammatory response in both anterior and posterior chambers via the downregulation of Th1 and Th17 effector responses. All these data suggested that the developed Dex supramolecular hydrogel might be a therapeutic alternative for non-infectious uveitis with minimal risk of the induction of lens opacity and fundus blood vessel tortuosity. STATEMENT OF SIGNIFICANCE A facile ionic cross-linking strategy was exploited to construct a dexamethasone sodium phosphate (Dex) supramolecular hydrogel composed of Dex and calcium ion. Intravitreal injection of Dex hydrogel displayed excellent intraocular biocompatibility without causing the complications of fundus blood vessel tortuosity and lens opacity. More importantly, the proposed Dex hydrogel exhibited a comparative anti-inflammatory response to native Dex formulation on an experimental autoimmune uveitis (EAU) model via the downregulation of Th1 and Th17 effector responses.
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61
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Pacheco S, Fung SY, Liu M. Solubility of Hydrophobic Compounds in Aqueous Solution Using Combinations of Self-assembling Peptide and Amino Acid. J Vis Exp 2017. [PMID: 28994806 DOI: 10.3791/56158] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Self-assembling peptides (SAPs) are promising vehicles for the delivery of hydrophobic therapeutics for clinical applications; their amphipathic properties allow them to dissolve hydrophobic compounds in the aqueous environment of the human body. However, self-assembling peptide solutions have poor blood compatibility (e.g., low osmolarity), hindering their clinical application through intravenous administrations. We have recently developed a generalized platform for hydrophobic drug delivery, which combines SAPs with amino acid solutions (SAP-AA) to enhance drug solubility and increase formulation osmolarity to reach the requirements for clinical uses. This formulation strategy was thoroughly tested in the context of three structurally different hydrophobic compounds - PP2, rottlerin, and curcumin - in order to demonstrate its versatility. Furthermore, we examined effects of changing formulation components by analyzing 6 different SAPs, 20 naturally existing amino acids at low and high concentrations, and two different co-solvents dimethyl sulfoxide (DMSO) and ethanol. Our strategy proved to be effective in optimizing components for a given hydrophobic drug, and therapeutic function of the formulated inhibitor, PP2, was observed both in vitro and in vivo. This manuscript outlines our generalized formulation method using SAP-AA combinations for hydrophobic compounds, and analysis of solubility as a first step towards potential use of these formulations in more functional studies. We include representative solubility results for formulation of the hydrophobic compound, curcumin, and discuss how our methodology serves as a platform for future biological studies and disease models.
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Affiliation(s)
- Shaun Pacheco
- Latner Thoracic Surgery Research Laboratories, University Health Network
| | - Shan-Yu Fung
- Department of Pediatrics, British Columbia Children's Hospital & University of British Columbia
| | - Mingyao Liu
- Latner Thoracic Surgery Research Laboratories, University Health Network; Institute of Medical Science, University of Toronto;
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62
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DiMaio JTM, Doran TM, Ryan DM, Raymond DM, Nilsson BL. Modulating Supramolecular Peptide Hydrogel Viscoelasticity Using Biomolecular Recognition. Biomacromolecules 2017; 18:3591-3599. [PMID: 28872306 DOI: 10.1021/acs.biomac.7b00925] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Self-assembled peptide-based hydrogels are emerging materials that have been exploited for wound healing, drug delivery, tissue engineering, and other applications. In comparison to synthetic polymer hydrogels, supramolecular peptide-based gels have advantages in biocompatibility, biodegradability, and ease of synthesis and modification. Modification of the emergent viscoelasticity of peptide hydrogels in a stimulus responsive fashion is a longstanding goal in the development of next-generation materials. In an effort to selectively modulate hydrogel viscoelasticity, we report herein a method to enhance the elasticity of β-sheet peptide hydrogels using specific molecular recognition events between functionalized hydrogel fibrils and biomolecules. Two distinct biomolecular recognition strategies are demonstrated: oligonucleotide Watson-Crick duplex formation between peptide nucleic acid (PNA) modified fibrils with a bridging oligonucleotide and protein-ligand recognition between mannose modified fibrils with concanavalin A. These methods to modulate hydrogel elasticity should be broadly adaptable in the context of these materials to a wide variety of molecular recognition partners.
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Affiliation(s)
- John T M DiMaio
- University of Rochester , Department of Chemistry, Rochester, New York 14627, United States
| | - Todd M Doran
- University of Rochester , Department of Chemistry, Rochester, New York 14627, United States
| | - Derek M Ryan
- University of Rochester , Department of Chemistry, Rochester, New York 14627, United States
| | - Danielle M Raymond
- University of Rochester , Department of Chemistry, Rochester, New York 14627, United States
| | - Bradley L Nilsson
- University of Rochester , Department of Chemistry, Rochester, New York 14627, United States
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63
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Ilgin P, Selcuk Zorer O, Ozay O, Boran G. Synthesis and characterization of 2-hydroxyethylmethacrylate/2-(3-indol-yl)ethylmethacrylamide-based novel hydrogels as drug carrier with in vitro
antibacterial properties. J Appl Polym Sci 2017. [DOI: 10.1002/app.45550] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Pinar Ilgin
- Department of Chemistry, Faculty of Science; Van Yuzuncu Yil University; Van Turkey
| | - Ozlem Selcuk Zorer
- Department of Chemistry, Faculty of Science; Van Yuzuncu Yil University; Van Turkey
| | - Ozgur Ozay
- Department of Chemistry and Chemical Processing Technologies, Lapseki Vocational School; Canakkale Onsekiz Mart University; Canakkale Turkey
| | - Gokhan Boran
- Department of Food Engineering, Faculty of Engineering; Van Yuzuncu Yil University; Van Turkey
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64
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Misra R, Sharma A, Shiras A, Gopi HN. Backbone Engineered γ-Peptide Amphitropic Gels for Immobilization of Semiconductor Quantum Dots and 2D Cell Culture. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:7762-7768. [PMID: 28715636 DOI: 10.1021/acs.langmuir.7b01283] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
We are reporting a spontaneous supramolecular assembly of backbone engineered γ-peptide scaffold and its utility in the immobilization of semiconductor quantum dots and in cell culture. The stimulating feature of this γ-peptide scaffold is that it efficiently gelates both aqueous phosphate buffers and aromatic organic solvents. A comparative and systematic investigation reveals that the greater spontaneous self-aggregation property of γ-peptide over the α- and β-peptide analogues is mainly due to the backbone flexibility, increased hydrophobicity, and π-π stacking of γ-phenylalanine residues. The hydrogels and organogels obtained from the γ-peptide scaffold have been characterized through field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), FT-IR, circular dichroism (CD), wide-angle X-ray diffraction, and rheometric study. Additionally, the peptide hydrogel has displayed a stimuli-responsive and thixotropic signature, which leads to the injectable hydrogels. 2D cell culture studies using normal and cancer cell lines reveal the biocompatibility of γ-peptide hydrogels. Further, the immobilization of semiconductor core-shell quantum dots in the transparent γ-peptide organogels showed ordered arrangement of quantum dots along the peptide fibrillar network with retaining photophysical property. Overall, γ-peptide scaffolds may serve as potential templates for the design of new functional biomaterials.
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Affiliation(s)
- Rajkumar Misra
- Department of Chemistry, Indian Institution of Science Education and Research , Homi Bhabha Road, Pune 411008, India
| | - Aman Sharma
- National Center for Cell Science, University of Pune Campus , Pune 411 007, India
| | - Anjali Shiras
- National Center for Cell Science, University of Pune Campus , Pune 411 007, India
| | - Hosahudya N Gopi
- Department of Chemistry, Indian Institution of Science Education and Research , Homi Bhabha Road, Pune 411008, India
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Zhou J, Li J, Du X, Xu B. Supramolecular biofunctional materials. Biomaterials 2017; 129:1-27. [PMID: 28319779 PMCID: PMC5470592 DOI: 10.1016/j.biomaterials.2017.03.014] [Citation(s) in RCA: 155] [Impact Index Per Article: 22.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Revised: 03/09/2017] [Accepted: 03/10/2017] [Indexed: 12/27/2022]
Abstract
This review discusses supramolecular biofunctional materials, a novel class of biomaterials formed by small molecules that are held together via noncovalent interactions. The complexity of biology and relevant biomedical problems not only inspire, but also demand effective molecular design for functional materials. Supramolecular biofunctional materials offer (almost) unlimited possibilities and opportunities to address challenging biomedical problems. Rational molecular design of supramolecular biofunctional materials exploit powerful and versatile noncovalent interactions, which offer many advantages, such as responsiveness, reversibility, tunability, biomimicry, modularity, predictability, and, most importantly, adaptiveness. In this review, besides elaborating on the merits of supramolecular biofunctional materials (mainly in the form of hydrogels and/or nanoscale assemblies) resulting from noncovalent interactions, we also discuss the advantages of small peptides as a prevalent molecular platform to generate a wide range of supramolecular biofunctional materials for the applications in drug delivery, tissue engineering, immunology, cancer therapy, fluorescent imaging, and stem cell regulation. This review aims to provide a brief synopsis of recent achievements at the intersection of supramolecular chemistry and biomedical science in hope of contributing to the multidisciplinary research on supramolecular biofunctional materials for a wide range of applications. We envision that supramolecular biofunctional materials will contribute to the development of new therapies that will ultimately lead to a paradigm shift for developing next generation biomaterials for medicine.
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Affiliation(s)
- Jie Zhou
- Department of Chemistry, Brandeis University, 415 South Street, Waltham, MA 02453, USA
| | - Jie Li
- Department of Chemistry, Brandeis University, 415 South Street, Waltham, MA 02453, USA
| | - Xuewen Du
- Department of Chemistry, Brandeis University, 415 South Street, Waltham, MA 02453, USA
| | - Bing Xu
- Department of Chemistry, Brandeis University, 415 South Street, Waltham, MA 02453, USA.
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Dou XQ, Feng CL. Amino Acids and Peptide-Based Supramolecular Hydrogels for Three-Dimensional Cell Culture. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1604062. [PMID: 28112836 DOI: 10.1002/adma.201604062] [Citation(s) in RCA: 230] [Impact Index Per Article: 32.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2016] [Revised: 10/16/2016] [Indexed: 05/18/2023]
Abstract
Supramolecular hydrogels assembled from amino acids and peptide-derived hydrogelators have shown great potential as biomimetic three-dimensional (3D) extracellular matrices because of their merits over conventional polymeric hydrogels, such as non-covalent or physical interactions, controllable self-assembly, and biocompatibility. These merits enable hydrogels to be made not only by using external stimuli, but also under physiological conditions by rationally designing gelator structures, as well as in situ encapsulation of cells into hydrogels for 3D culture. This review will assess current progress in the preparation of amino acids and peptide-based hydrogels under various kinds of external stimuli, and in situ encapsulation of cells into the hydrogels, with a focus on understanding the associations between their structures, properties, and functions during cell culture, and the remaining challenges in this field. The amino acids and peptide-based hydrogelators with rationally designed structures have promising applications in the fields of regenerative medicine, tissue engineering, and pre-clinical evaluation.
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Affiliation(s)
- Xiao-Qiu Dou
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiaotong University, 800 Dongchuan Road., 200240, Shanghai, China
| | - Chuan-Liang Feng
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiaotong University, 800 Dongchuan Road., 200240, Shanghai, China
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Wu C, Li R, Yin Y, Wang J, Zhang L, Zhong W. Redox-responsive supramolecular hydrogel based on 10-hydroxy camptothecin-peptide covalent conjugates with high loading capacity for drug delivery. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 76:196-202. [PMID: 28482517 DOI: 10.1016/j.msec.2017.03.103] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2016] [Revised: 12/22/2016] [Accepted: 03/12/2017] [Indexed: 01/24/2023]
Abstract
A redox-responsive supramolecular hydrogel system was developed for delivering 10-hydroxy camptothecin (HCPT). The hydrogel was formed by cleaving disulfide bond. The combination of hydrophobic HCPT with hydrogel was a simple and effective way to improve the solubility of HCPT and the drug loading capacity of delivery system. The transmission electron microscopy (TEM) image revealed the self-assembled hydrogel was long and thin nanofibers with a width of <10nm. Rheological test verified the hydrogel had fine physical properties. In vitro release experiment showed that the accumulative releasing percentages within 72h of HCPT-peptide hydrogels at 3.0%, 4.0%, 5.0% were 16.8%, 21.3%, and 26.8% respectively, which indicated the HCPT-peptide hydrogels had a significantly sustained-release characteristic. Besides, in vitro anticancer assay showed that HCPT-peptide hydrogels possessed a favorable anticancer efficacy. These results indicated that HCPT-peptide hydrogel had great potential for cancer treatment as a novel injectable drug delivery system.
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Affiliation(s)
- Can Wu
- Department of Analytical Chemistry, China Pharmaceutical University, Nanjing 210009, People's Republic of China
| | - Ruixin Li
- Department of Analytical Chemistry, China Pharmaceutical University, Nanjing 210009, People's Republic of China
| | - Yajun Yin
- Department of Analytical Chemistry, China Pharmaceutical University, Nanjing 210009, People's Republic of China
| | - Junling Wang
- Department of Analytical Chemistry, China Pharmaceutical University, Nanjing 210009, People's Republic of China
| | - Li Zhang
- Department of Analytical Chemistry, China Pharmaceutical University, Nanjing 210009, People's Republic of China
| | - Wenying Zhong
- Department of Analytical Chemistry, China Pharmaceutical University, Nanjing 210009, People's Republic of China; Key Laboratory of Biomedical Functional Materials, China Pharmaceutical University, Nanjing 210009, People's Republic of China.
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Wang K, Guo Z, Zhang L, Sun K, Yu P, Zhou S, Wang W, Li Z. Co-assembly of donor and acceptor towards organogels tuned by charge transfer interaction strength. SOFT MATTER 2017; 13:1948-1955. [PMID: 28177029 DOI: 10.1039/c6sm02691e] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Co-assembly of n-type semiconductors NDI and PDI with p-type pyrene derivatives resulted in the formation of stable organogels, which was induced by the strong charge transfer (CT) interactions between acceptors and donors in chloroform. The dimension size of the aromatic core from the acceptors was found to have a significant impact on the organogels. The width of the fibers from CT gels with NDI is about twice that from gels with PDI. It was found that the acceptor NDI preferred an alternate stacking with donors, intercalated with each other via CT interactions. In contrast, the acceptor PDI preferred to stack among themselves within the assemblies and this arose from the stronger π-π interactions because they had larger aromatic cores than the acceptor NDI. The dimension size of the aromatic core has been proved to have a significant impact on the organogels. The substituent impact of the donors was also studied.
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Affiliation(s)
- Kun Wang
- School of Polymer Science and Engineering, Qingdao University of Science and Technology (QUST), Qingdao 266042, P. R. China.
| | - Zongxia Guo
- School of Polymer Science and Engineering, Qingdao University of Science and Technology (QUST), Qingdao 266042, P. R. China.
| | - Li Zhang
- Department Beijing National Laboratory for Molecular Science (BNLMS), Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Kai Sun
- Department Beijing National Laboratory for Molecular Science (BNLMS), Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Ping Yu
- School of Polymer Science and Engineering, Qingdao University of Science and Technology (QUST), Qingdao 266042, P. R. China.
| | - Shenghua Zhou
- School of Polymer Science and Engineering, Qingdao University of Science and Technology (QUST), Qingdao 266042, P. R. China.
| | - Wenpin Wang
- School of Polymer Science and Engineering, Qingdao University of Science and Technology (QUST), Qingdao 266042, P. R. China.
| | - Zhibo Li
- School of Polymer Science and Engineering, Qingdao University of Science and Technology (QUST), Qingdao 266042, P. R. China.
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Yang H, Chen D, Xiao R, Guo H, Liu X, Nie H. Facile fabrication of pH-sensitive peptide–inorganic hollow spheres using a template-free method. J Mater Chem B 2017; 5:4569-4573. [DOI: 10.1039/c7tb00523g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The self-assembly of a heptapeptide and phosphotungstic acid into hollow spheres with pH-responsive properties was achieved using a template-free method.
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Affiliation(s)
- Huiqin Yang
- Key Laboratory of Textile Science & Technology
- Ministry of Education
- Donghua University
- Shanghai
- P. R. China
| | - Deqiang Chen
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
- Shanghai
- P. R. China
| | - Ruiqiu Xiao
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
- Shanghai
- P. R. China
| | - Hongzhen Guo
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
- Shanghai
- P. R. China
| | - Xiang Liu
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
- Shanghai
- P. R. China
| | - Huali Nie
- Key Laboratory of Textile Science & Technology
- Ministry of Education
- Donghua University
- Shanghai
- P. R. China
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Xu Q, He C, Zhang Z, Ren K, Chen X. Injectable, Biomolecule-Responsive Polypeptide Hydrogels for Cell Encapsulation and Facile Cell Recovery through Triggered Degradation. ACS APPLIED MATERIALS & INTERFACES 2016; 8:30692-30702. [PMID: 27762560 DOI: 10.1021/acsami.6b08292] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Injectable hydrogels have been widely investigated in biomedical applications, and increasing demand has been proposed to achieve dynamic regulation of physiological properties of hydrogels. Herein, a new type of injectable and biomolecule-responsive hydrogel based on poly(l-glutamic acid) (PLG) grafted with disulfide bond-modified phloretic acid (denoted as PLG-g-CPA) was developed. The hydrogels formed in situ via enzymatic cross-linking under physiological conditions in the presence of horseradish peroxidase and hydrogen peroxide. The physiochemical properties of the hydrogels, including gelation time and the rheological property, were measured. Particularly, the triggered degradation of the hydrogel in response to a reductive biomolecule, glutathione (GSH), was investigated in detail. The mechanical strength and inner porous structure of the hydrogel were influenced by the addition of GSH. The polypeptide hydrogel was used as a three-dimensional (3D) platform for cell encapsulation, which could release the cells through triggered disruption of the hydrogel in response to the addition of GSH. The cells released from the hydrogel were found to maintain high viability. Moreover, after subcutaneous injection into rats, the PLG-g-CPA hydrogels with disulfide-containing cross-links exhibited a markedly faster degradation behavior in vivo compared to that of the PLG hydrogels without disulfide cross-links, implying an interesting accelerated degradation process of the disulfide-containing polypeptide hydrogels in the physiological environment in vivo. Overall, the injectable and biomolecule-responsive polypeptide hydrogels may serve as a potential platform for 3D cell culture and easy cell collection.
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Affiliation(s)
- Qinghua Xu
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun 130022, P.R. China
- University of Chinese Academy of Sciences , Beijing 100039, P.R. China
| | - Chaoliang He
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun 130022, P.R. China
| | - Zhen Zhang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun 130022, P.R. China
- University of Chinese Academy of Sciences , Beijing 100039, P.R. China
| | - Kaixuan Ren
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun 130022, P.R. China
| | - Xuesi Chen
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun 130022, P.R. China
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Ashwanikumar N, Kumar NA, Saneesh Babu PS, Sivakumar KC, Vadakkan MV, Nair P, Hema Saranya I, Asha Nair S, Vinod Kumar GS. Self-assembling peptide nanofibers containing phenylalanine for the controlled release of 5-fluorouracil. Int J Nanomedicine 2016; 11:5583-5594. [PMID: 27822037 PMCID: PMC5087806 DOI: 10.2147/ijn.s104707] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The study shows that RADA-F6 peptide with pH-responsive self-assembling nature can be effectively used as a drug delivery system for the sustained release of a potent anticancer drug 5-fluorouracil (5-FU) at basic pH. As 5-FU contains the aromatic pyrimidine ring, RADA-F6 system is suitable for entrapping an aromatic drug due to effective π-π stacking with phenylalanine and be able to show better controlled release behavior. The stability and controlled release nature of RADA-F6 in different conditions followed by 5-FU entrapment at in silico conditions was confirmed by molecular dynamics simulation taking RADA-16 as control. Cytotoxicity of the drug-loaded RADA-F6 was measured by MTT assay and cellular uptake by confocal microscopy. Physicochemical characterization and further Western blot analysis and flow cytometric studies confirm that RADA-F6 can be successfully used as an efficient vector for pH-sensitive, controlled 5-FU delivery system.
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Affiliation(s)
| | | | | | - Krishnankutty C Sivakumar
- Distributed Information Sub-Centre (Bioinformatics Centre), Rajiv Gandhi Centre for Biotechnology, Poojappura, Thiruvananthapuram, Kerala, India
| | | | - Parvathi Nair
- Chemical Biology, Nano Drug Delivery Systems, Bio-Innovation Center
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Pospišil T, Ferhatović Hamzić L, Brkić Ahmed L, Lovrić M, Gajović S, Frkanec L. Synthesis, characterization and in vitro biocompatibility assessment of a novel tripeptide hydrogelator, as a promising scaffold for tissue engineering applications. Biomater Sci 2016; 4:1412-6. [PMID: 27508285 DOI: 10.1039/c6bm00287k] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
We have synthesized and characterized a self-assembling tripeptide hydrogelator Ac-l-Phe-l-Phe-l-Ala-NH2. A series of experiments showed that the hydrogel material could serve as a stabile and biocompatible physical support as it improves the survival of HEK293T cells in vitro, thus being a promising biomaterial for use in tissue engineering applications.
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Affiliation(s)
- Tihomir Pospišil
- Laboratory for Supramolecular Chemistry, Division of Organic Chemistry and Biochemistry, Ruđer Bošković Institute, Bijenička 54, 10000 Zagreb, Croatia.
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75
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Li J, Xu J, Li X, Gao W, Wang L, Wu L, Lee M, Li W. Heteropoly acids triggered self-assembly of cationic peptides into photo- and electro-chromic gels. SOFT MATTER 2016; 12:5572-5580. [PMID: 27240759 DOI: 10.1039/c6sm00752j] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A series of cationic peptides with alternating lysines and hydrophobic residues were designed and synthesized. These kinds of short peptides with protonated lysines can complex with anionic heteropoly acids (HPAs) to form a stable gel in water/ethanol mixed solution. Circular dichroism spectroscopy showed that the short peptides adopted a mixed conformation (β-sheet and random-coil) within the gel matrix. Scanning and transmission electron microscopy revealed that the heteropoly acids, acting as nanosized cross-linkers, first initiated the self-assembly of the cationic peptides into spherical nanostructures. Then these nanospheres accumulated with each other through hydrogen bonds and hydrophobic interactions to form large sheet-like assemblies, which further interconnected with each other forming continuous 3D network structures. Fourier-transform infrared spectroscopy showed that the structural integrity of the HPAs was maintained during the gelation process. The resultant hybrid gels showed reversible photo- and elecrtro-chromic properties. X-ray photoelectron spectroscopy revealed that the hybrid gels, capable of persistent and reversible changes of their colour, are attributed to the intervalence charge-transfer transition of the HPAs. Reversible information writing and erasing were demonstrated through a repeated photo-lithograph or electric stimuli without significant loss of the gel performance.
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Affiliation(s)
- Jingfang Li
- State key laboratory of supramolecular structure and materials, Institute of theoretical chemistry, Jilin University, Qianjin Avenue 2699, Changchun 130012, China.
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Liyanage W, Vats K, Rajbhandary A, Benoit DSW, Nilsson BL. Multicomponent dipeptide hydrogels as extracellular matrix-mimetic scaffolds for cell culture applications. Chem Commun (Camb) 2016; 51:11260-3. [PMID: 26081605 DOI: 10.1039/c5cc03162a] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Fmoc-3F-Phe-Arg-NH2 and Fmoc-3F-Phe-Asp-OH dipeptides undergo coassembly to form two-component nanofibril hydrogels. These hydrogels support the viability and growth of NIH 3T3 fibroblast cells. The supramolecular display of Arg and Asp at the nanofibril surface effectively mimics the integrin-binding RGD peptide of fibronectin, without covalent connection between the Arg and Asp functionality.
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Affiliation(s)
- Wathsala Liyanage
- Department of Chemistry, University of Rochester, Rochester, NY 14627-0216, USA.
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77
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Nagy-Smith K, Yamada Y, Schneider JP. Protein release from highly charged peptide hydrogel networks. J Mater Chem B 2016; 4:1999-2007. [PMID: 32263077 PMCID: PMC8244587 DOI: 10.1039/c5tb02137e] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hydrogels are useful delivery vehicles for therapeutic proteins. The ability to control the rate of protein release is paramount to a gel's utility and, in part, defines its clinical application. Electrostatic interactions made between encapsulated protein and a gel's network represents one modality in which protein motility can be controlled. For many gels this strategy works well under low ionic strength solution conditions, but dramatically less so in solutions of physiologically relevant ionic strength where electrostatic interactions are more effectively screened. Herein, we find that highly charged self-assembling peptides can be used to prepare fibrillar hydrogels of sufficient electropotential to allow electrostatic-based control over protein release under physiological buffer conditions. Rheology shows that proteins, differing significantly in their isoelectric point, can be directly encapsulated within negatively- or positively-charged peptide hydrogel networks during the peptide self-assembly event leading to gelation. Bulk adsorption studies coupled with transmission electron microscopy shows that electrostatic interactions drive the association of protein to oppositely charged fibrils in the final gel state, which in turn, dictates the diffusion and retention of these macromolecules in the hydrogel network.
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Affiliation(s)
- Katelyn Nagy-Smith
- Chemical Biology Laboratory, National Cancer Institute, Frederick, MD 21702, USA.
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78
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Sun Y, Kaplan JA, Shieh A, Sun HL, Croce CM, Grinstaff MW, Parquette JR. Self-assembly of a 5-fluorouracil-dipeptide hydrogel. Chem Commun (Camb) 2016; 52:5254-7. [PMID: 26996124 DOI: 10.1039/c6cc01195k] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The self-assembly of 5-fluorouracil dilysine conjugates into self-supporting hydrogels, comprised of entangled nanofibers or rigid nanotubes with diameters of 10 and 16 nm, respectively, is reported. The rate of release of 5-Fu from the conjugates was highly dependent on concentration in solution, whereas, release from the fully formed hydrogels was significantly slower. The 5-Fu conjugate also exhibited promising in vitro cytotoxicity against human tumor cell lines A549, H460 and H23.
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Affiliation(s)
- Yuan Sun
- Department of Chemistry and Biochemistry, The Ohio State University, 100 W. 18th Ave., Columbus, Ohio 43210, USA.
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79
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Xiao X, Hu J, Wang X, Huang L, Chen Y, Wang W, Li J, Zhang Y. A dual-functional supramolecular hydrogel based on a spiropyran–galactose conjugate for target-mediated and light-controlled delivery of microRNA into cells. Chem Commun (Camb) 2016; 52:12517-12520. [DOI: 10.1039/c6cc07386g] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A dual-functional supramolecular hydrogel was developed for light-controlled release of miRNA and target-mediated delivery of miRNA into cells.
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Affiliation(s)
- Xiao Xiao
- State Key Laboratory of Analytical Chemistry for Life Sciences
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210023
- China
| | - Jing Hu
- State Key Laboratory of Analytical Chemistry for Life Sciences
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210023
- China
| | - Xingxing Wang
- State Key Laboratory of Analytical Chemistry for Life Sciences
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210023
- China
| | - Lei Huang
- State Key Laboratory of Analytical Chemistry for Life Sciences
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210023
- China
| | - Yingjie Chen
- State Key Laboratory of Analytical Chemistry for Life Sciences
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210023
- China
| | - Wei Wang
- State Key Laboratory of Analytical Chemistry for Life Sciences
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210023
- China
| | - Jinbo Li
- State Key Laboratory of Analytical Chemistry for Life Sciences
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210023
- China
| | - Yan Zhang
- State Key Laboratory of Analytical Chemistry for Life Sciences
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210023
- China
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Liang R, Luo Z, Pu G, Wu W, Shi S, Yu J, Zhang Z, Chen H, Li X. Self-assembled peptide-based supramolecular hydrogel for ophthalmic drug delivery. RSC Adv 2016. [DOI: 10.1039/c6ra11691d] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Conventional ophthalmic formulations such as eye drops normally suffer from limited therapeutic efficacy with a requirement for frequent instillation.
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Affiliation(s)
- Renlong Liang
- Institute of Biomedical Engineering
- School of Ophthalmology & Optometry and Eye Hospital
- Wenzhou Medical University
- Wenzhou 325027
- P. R. China
| | - Zichao Luo
- Institute of Biomaterials and Engineering
- Wenzhou Medical University
- Wenzhou 325035
- P. R. China
- Wenzhou Institute of Biomaterials and Engineering
| | - Guojuan Pu
- Institute of Biomaterials and Engineering
- Wenzhou Medical University
- Wenzhou 325035
- P. R. China
- Wenzhou Institute of Biomaterials and Engineering
| | - Wei Wu
- Institute of Biomedical Engineering
- School of Ophthalmology & Optometry and Eye Hospital
- Wenzhou Medical University
- Wenzhou 325027
- P. R. China
| | - Shuai Shi
- Institute of Biomedical Engineering
- School of Ophthalmology & Optometry and Eye Hospital
- Wenzhou Medical University
- Wenzhou 325027
- P. R. China
| | - Jing Yu
- Institute of Biomaterials and Engineering
- Wenzhou Medical University
- Wenzhou 325035
- P. R. China
- Wenzhou Institute of Biomaterials and Engineering
| | - Zhaoliang Zhang
- Institute of Biomedical Engineering
- School of Ophthalmology & Optometry and Eye Hospital
- Wenzhou Medical University
- Wenzhou 325027
- P. R. China
| | - Hao Chen
- Institute of Biomedical Engineering
- School of Ophthalmology & Optometry and Eye Hospital
- Wenzhou Medical University
- Wenzhou 325027
- P. R. China
| | - Xingyi Li
- Institute of Biomedical Engineering
- School of Ophthalmology & Optometry and Eye Hospital
- Wenzhou Medical University
- Wenzhou 325027
- P. R. China
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81
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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: 1266] [Impact Index Per Article: 140.7] [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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82
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Liu D, Li B, Guo Y, Li Y, Yang Y. Inner Surface Chirality of Single-Handed Twisted Carbonaceous Tubular Nanoribbons. Chirality 2015; 27:809-15. [DOI: 10.1002/chir.22496] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2015] [Revised: 06/12/2015] [Accepted: 07/19/2015] [Indexed: 01/22/2023]
Affiliation(s)
- Dan Liu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou P.R. China
| | - Baozong Li
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou P.R. China
| | - Yongmin Guo
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou P.R. China
| | - Yi Li
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou P.R. China
| | - Yonggang Yang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou P.R. China
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83
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Guo Z, Gong R, Jiang Y, Wan X. Tetrapeptide-coumarin conjugate 3D networks based on hydrogen-bonded charge transfer complexes: gel formation and dye release. SOFT MATTER 2015; 11:6118-6124. [PMID: 26138931 DOI: 10.1039/c5sm00995b] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Oligopeptide-based derivatives are important synthons for bio-based functional materials. In this article, a Gly-(L-Val)-Gly-(L-Val)-coumarin (GVGV-Cou) conjugate was synthesized, which forms 3D networks in ethanol. The gel nanostructures were characterized by UV-vis spectroscopy, FT-IR spectroscopy, X-ray diffraction (XRD), SEM and TEM. It is suggested that the formation of charge transfer (CT) complexes between the coumarin moieties is the main driving force for the gel formation. The capability of the gel to encapsulate and release dyes was explored. Both Congo Red (CR) and Methylene Blue (MB) can be trapped in the CT gel matrix and released over time. The present gel might be used as a functional soft material for guest encapsulation and release.
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Affiliation(s)
- Zongxia Guo
- CAS Key Laboratory of Bio-based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, P. R. China.
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84
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Mangunuru HP, Yerabolu JR, Wang G. Synthesis and study of N-acetyl d-glucosamine triazole derivatives as effective low molecular weight gelators. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.02.123] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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85
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Yang C, Wang Z, Ou C, Chen M, Wang L, Yang Z. A supramolecular hydrogelator of curcumin. Chem Commun (Camb) 2015; 50:9413-5. [PMID: 25007863 DOI: 10.1039/c4cc03139c] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Here we report on the first supramolecular hydrogelator of curcumin and the evaluation of its inhibition capacity towards cancer cells and tumor growth.
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Affiliation(s)
- Chengbiao Yang
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education, and College of Life Sciences, Nankai University, and Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300071, P. R. China.
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86
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Li Y, Sun Y, Qin M, Cao Y, Wang W. Mechanics of single peptide hydrogelator fibrils. NANOSCALE 2015; 7:5638-5642. [PMID: 25760017 DOI: 10.1039/c4nr07657e] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The rigidity of peptide fibers is essential for their chemical and biological functions, despite that it remains largely unexplored. Here, we present the first direct measurement of the mechanics of individual fibers in peptide hydrogels by AFM imaging and statistical analysis and find that the intermolecular interactions play a considerable role.
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Affiliation(s)
- Ying Li
- Jiangsu Engineering Technology Research Centre of Environmental Cleaning Materials, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Jiangsu Joint Laboratory of Atmospheric Pollution Control, Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, 219 Ningliu Road, Nanjing, Jiangsu 210044, P.R. China.
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87
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Xue Q, Ren H, Xu C, Wang G, Ren C, Hao J, Ding D. Nanospheres of doxorubicin as cross-linkers for a supramolecular hydrogelation. Sci Rep 2015; 5:8764. [PMID: 25739554 PMCID: PMC4350081 DOI: 10.1038/srep08764] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2014] [Accepted: 01/22/2015] [Indexed: 01/03/2023] Open
Abstract
In this study, we synthesized a peptide of Nap-GFFYGRGD, which could self-assemble into supramolecular nanofibers. The peptide itself could only form nanofibers but not hydrogels due to the relative weak inter-fiber interactions. The resulting nanofibers were then utilized as the vehicles for anticancer drug doxorubicin. It was found that the nanofibers of Nap-GFFYGRGD could not encapsulate doxorubicin, whereas the drug formed nanospheres, which were located at the surface of the nanofibers. Due to the electrostatic interactions between the negatively charged nanofibers and the positively charged doxorubicin nanospheres, the doxorubicin nanospheres were able to serve as a cross-linker to increase the inter-fiber interactions, leading to the formation of stable three-dimentional fiber networks and hydrogels. The resulting doxorubicin-peptide hydrogels were capable of releasing the drug in a sustained manner, which also showed comparable cytotoxicity as compared to free doxorubicin against a variety of cancer cell lines including HeLa and MCF-7 cancer cells. Therefore, this successful example using drug as the peptide nanofiber cross-linkers provided a new strategy for fabricating supramolecular hydrogelation for controlled delivery of anticancer drugs.
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Affiliation(s)
- Qiang Xue
- National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, P. R. China
| | - He Ren
- National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, P. R. China
| | - Chao Xu
- National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, P. R. China
| | - Gang Wang
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin. 300071, P. R. China
| | - Chunhua Ren
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin. 300071, P. R. China
| | - Jihui Hao
- National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, P. R. China
| | - Dan Ding
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin. 300071, P. R. China
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88
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Frohm B, DeNizio JE, Lee DSM, Gentile L, Olsson U, Malm J, Akerfeldt KS, Linse S. A peptide from human semenogelin I self-assembles into a pH-responsive hydrogel. SOFT MATTER 2015; 11:414-421. [PMID: 25408475 DOI: 10.1039/c4sm01793e] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The peptide GSFSIQYTYHV derived from human semenogelin I forms a transparent hydrogel through spontaneous self-assembly in water at neutral pH. Linear rheology measurements demonstrate that the gel shows a dominating elastic response over a large frequency interval. CD, fluorescence and FTIR spectroscopy and cryo-TEM studies imply long fibrillar aggregates of extended β-sheet. Dynamic light scattering data indicate that the fibril lengths are of the order of micrometers. Time-dependent thioflavin T fluorescence shows that fibril formation by GSFSIQYTYHV is a nucleated reaction. The peptide may serve as basis for development of smart biomaterials of low immunogenicity suitable for biomedical applications, including drug delivery and wound healing.
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Affiliation(s)
- B Frohm
- Biochemistry and Structural Biology, Lund University, P O Box 124, SE-221 00 Lund, Sweden.
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89
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Hua Y, Ou C, Chen G, Zhang X, Cai Y, Yang Z, Wang L, Chen M. Visualized detection of vancomycin by supramolecular hydrogelations. RSC Adv 2015. [DOI: 10.1039/c5ra14045e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Here we report on a visualized detection system for vancomycin based on supramolecular hydrogelations.
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Affiliation(s)
- Yongquan Hua
- Department of Cardiology
- Zhujiang Hospital of Southern Medical University
- Guangzhou 510280
- P. R. China
| | - Caiwen Ou
- Department of Cardiology
- Zhujiang Hospital of Southern Medical University
- Guangzhou 510280
- P. R. China
| | - Guoqin Chen
- Cardiovascular Medicine Department of Guangzhou Panyu Central Hospital
- Guangzhou
- P. R. China
| | - Xiaoli Zhang
- State Key Laboratory of Medicinal Chemical Biology
- College of Pharmacy
- Nankai University
- Collaborative Innovation Center of Chemical Science and Engineering
- Tianjin 300071
| | - Yanbin Cai
- State Key Laboratory of Medicinal Chemical Biology
- College of Pharmacy
- Nankai University
- Collaborative Innovation Center of Chemical Science and Engineering
- Tianjin 300071
| | - Zhimou Yang
- State Key Laboratory of Medicinal Chemical Biology
- College of Pharmacy
- Nankai University
- Collaborative Innovation Center of Chemical Science and Engineering
- Tianjin 300071
| | - Ling Wang
- State Key Laboratory of Medicinal Chemical Biology
- College of Pharmacy
- Nankai University
- Collaborative Innovation Center of Chemical Science and Engineering
- Tianjin 300071
| | - Minsheng Chen
- Department of Cardiology
- Zhujiang Hospital of Southern Medical University
- Guangzhou 510280
- P. R. China
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90
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Synthesis of a series of glucosyl triazole derivatives and their self-assembling properties. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2014.11.013] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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91
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Ling Y, Gao Y, Shu C, Zhou Y, Zhong W, Xu B. Using a peptide segment to covalently conjugate doxorubicin and taxol for the study of drug combination effect. RSC Adv 2015. [DOI: 10.1039/c5ra14156g] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Doxorubicin (Dox) and Taxol can be covalently bonded to the same peptide segment via proper structural modification.
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Affiliation(s)
- Ya Ling
- Department of Analytical Chemistry
- China Pharmaceutical University
- Nanjing
- China
| | - Yuan Gao
- CAS Key Lab for Biological Effects of Nanomaterials and Nanosafety
- National Center for NanoScience and Technology
- Beijing 100190
- China
| | - Chang Shu
- Department of Analytical Chemistry
- China Pharmaceutical University
- Nanjing
- China
| | - Ying Zhou
- Department of Analytical Chemistry
- China Pharmaceutical University
- Nanjing
- China
| | - Wenying Zhong
- Department of Analytical Chemistry
- China Pharmaceutical University
- Nanjing
- China
- Key Laboratory of Biomedical Functional Materials
| | - Bing Xu
- Department of Chemistry
- Brandeis University
- Waltham
- USA
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92
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Goyal N, Mangunuru HPR, Parikh B, Shrestha S, Wang G. Synthesis and characterization of pH responsive D-glucosamine based molecular gelators. Beilstein J Org Chem 2014; 10:3111-21. [PMID: 25670980 PMCID: PMC4311663 DOI: 10.3762/bjoc.10.328] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2014] [Accepted: 11/24/2014] [Indexed: 01/05/2023] Open
Abstract
Small molecular gelators are a class of compounds with potential applications for soft biomaterials. Low molecular weight hydrogelators are especially useful for exploring biomedical applications. Previously, we found that 4,6-O-benzylidene acetal protected D-glucose and D-glucosamine are well-suited as building blocks for the construction of low molecular weight gelators. To better understand the scope of D-glucosamine derivatives as gelators, we synthesized and screened a novel class of N-acetylglucosamine derivatives with a p-methoxybenzylidene acetal protective group. This modification did not exert a negative influence on the gelation. On the contrary, it actually enhanced the gelation tendency for many derivatives. The introduction of the additional methoxy group on the phenyl ring led to low molecular weight gelators with a higher pH responsiveness. The resulting gels were stable at neutral pH values but degraded in an acidic environment. The release profiles of naproxen from the pH responsive gels were also analyzed under acidic and neutral conditions. Our findings are useful for the design of novel triggered release self-assembling systems and can provide an insight into the influence of the the structure on gelation.
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Affiliation(s)
- Navneet Goyal
- Department of Chemistry and Biochemistry, Old Dominion University, 4541 Hampton Boulevard, Norfolk, VA 23529, USA
| | - Hari P R Mangunuru
- Department of Chemistry and Biochemistry, Old Dominion University, 4541 Hampton Boulevard, Norfolk, VA 23529, USA
| | - Bargav Parikh
- Department of Chemistry and Biochemistry, Old Dominion University, 4541 Hampton Boulevard, Norfolk, VA 23529, USA
| | - Sonu Shrestha
- Department of Chemistry and Biochemistry, Old Dominion University, 4541 Hampton Boulevard, Norfolk, VA 23529, USA
| | - Guijun Wang
- Department of Chemistry and Biochemistry, Old Dominion University, 4541 Hampton Boulevard, Norfolk, VA 23529, USA
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93
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Zheng X, Wu D, Su T, Bao S, Liao C, Wang Q. Magnetic nanocomposite hydrogel prepared by ZnO-initiated photopolymerization for La (III) adsorption. ACS APPLIED MATERIALS & INTERFACES 2014; 6:19840-19849. [PMID: 25347800 DOI: 10.1021/am505177c] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Here, we provide an effective method to fabricate magnetic ZnO clay nanocomposite hydrogel via the photopolymerization. The inorganic components endow the hydrogel with high mechanical strength, while the organic copolymers exhibit good adsorption capacity and separation selectivity to La (III) ions. An optimized hydrogel has the maximum compressive stress of 316.60±15.83 kPa, which still exhibits 138.98±7.32 kPa compressive strength after swelling. The maximum adsorption capacity of La ion is 58.8 mg/g. The adsorption matches the pseudo-second-order kinetics model. La (III) ions can be effectively separated from the mixtures of La/Ni, La/Co, La/Cu, and La/Nd in a broad pH range (2.0 to 8.0). After six adsorption-desorption cycles, the hydrogel can maintain its adsorption capacity. This work not only provides a new approach to the synthesis of tough hydrogels under irradiation, but also opens up enormous opportunities to make full use of magnetic nanocomposite hydrogels in environmental fields.
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Affiliation(s)
- Xiangning Zheng
- Department of Chemistry, and Advanced Research Institute, Tongji University , Shanghai 200092, P.R. China
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94
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A genetically modified protein-based hydrogel for 3D culture of AD293 cells. PLoS One 2014; 9:e107949. [PMID: 25233088 PMCID: PMC4169439 DOI: 10.1371/journal.pone.0107949] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2014] [Accepted: 08/18/2014] [Indexed: 11/19/2022] Open
Abstract
Hydrogels have strong application prospects for drug delivery, tissue engineering and cell therapy because of their excellent biocompatibility and abundant availability as scaffolds for drugs and cells. In this study, we created hybrid hydrogels based on a genetically modified tax interactive protein-1 (TIP1) by introducing two or four cysteine residues in the primary structure of TIP1. The introduced cysteine residues were crosslinked with a four-armed poly (ethylene glycol) having their arm ends capped with maleimide residues (4-armed-PEG-Mal) to form hydrogels. In one form of the genetically modification, we incorporated a peptide sequence ‘GRGDSP’ to introduce bioactivity to the protein, and the resultant hydrogel could provide an excellent environment for a three dimensional cell culture of AD293 cells. The AD293 cells continued to divide and displayed a polyhedron or spindle-shape during the 3-day culture period. Besides, AD293 cells could be easily separated from the cell-gel constructs for future large-scale culture after being cultured for 3 days and treating hydrogel with trypsinase. This work significantly expands the toolbox of recombinant proteins for hydrogel formation, and we believe that our hydrogel will be of considerable interest to those working in cell therapy and controlled drug delivery.
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95
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Shi Y, Wang J, Wang H, Hu Y, Chen X, Yang Z. Glutathione-triggered formation of a Fmoc-protected short peptide-based supramolecular hydrogel. PLoS One 2014; 9:e106968. [PMID: 25222132 PMCID: PMC4164459 DOI: 10.1371/journal.pone.0106968] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2014] [Accepted: 08/04/2014] [Indexed: 11/18/2022] Open
Abstract
A biocompatible method of glutathione (GSH) catalyzed disulfide bond reduction was used to form Fmoc-short peptide-based supramolecular hydrogels. The hydrogels could form in both buffer solution and cell culture medium containing 10% of Fetal Bovine Serum (FBS) within minutes. The hydrogel was characterized by rheology, transmission electron microscopy, and fluorescence emission spectra. Their potential in three dimensional (3D) cell culture was evaluated and the results indicated that the gel with a low concentration of the peptide (0.1 wt%) was suitable for 3D cell culture of 3T3 cells. This study provides an alternative candidate of supramolecular hydrogel for 3D cell culture and cell delivery.
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Affiliation(s)
- Yang Shi
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin, P. R. China
| | - Jingyu Wang
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin, P. R. China
| | - Huaimin Wang
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin, P. R. China
| | - Yanhui Hu
- School of Chemical and Materials Engineering, Hubei Institute of Technology, Huangshi, Hubei, P. R. China
| | - Xuemei Chen
- School of Chemical and Materials Engineering, Hubei Institute of Technology, Huangshi, Hubei, P. R. China
| | - Zhimou Yang
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin, P. R. China
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96
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Fleming S, Ulijn RV. Design of nanostructures based on aromatic peptide amphiphiles. Chem Soc Rev 2014; 43:8150-77. [PMID: 25199102 DOI: 10.1039/c4cs00247d] [Citation(s) in RCA: 591] [Impact Index Per Article: 59.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Aromatic peptide amphiphiles are gaining popularity as building blocks for the bottom-up fabrication of nanomaterials, including gels. These materials combine the simplicity of small molecules with the versatility of peptides, with a range of applications proposed in biomedicine, nanotechnology, food science, cosmetics, etc. Despite their simplicity, a wide range of self-assembly behaviours have been described. Due to varying conditions and protocols used, care should be taken when attempting to directly compare results from the literature. In this review, we rationalise the structural features which govern the self-assembly of aromatic peptide amphiphiles by focusing on four segments, (i) the N-terminal aromatic component, (ii) linker segment, (iii) peptide sequence, and (iv) C-terminus. It is clear that the molecular structure of these components significantly influences the self-assembly process and resultant supramolecular architectures. A number of modes of assembly have been proposed, including parallel, antiparallel, and interlocked antiparallel stacking conformations. In addition, the co-assembly arrangements of aromatic peptide amphiphiles are reviewed. Overall, this review elucidates the structural trends and design rules that underpin the field of aromatic peptide amphiphile assembly, paving the way to a more rational design of nanomaterials based on aromatic peptide amphiphiles.
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Affiliation(s)
- Scott Fleming
- WestCHEM/Department of Pure and Applied Chemistry, University of Strathclyde, Thomas Graham Building, 295 Cathedral Street, Glasgow G1 1XL, UK.
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97
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Kleinsmann AJ, Weckenmann NM, Nachtsheim BJ. Phosphate-Triggered Self-Assembly ofN-[(Uracil-5-yl)methyl]urea: A Minimalistic Urea-Derived Hydrogelator. Chemistry 2014; 20:9753-61. [DOI: 10.1002/chem.201402916] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2014] [Indexed: 11/07/2022]
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98
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Marchesan S, Easton CD, Styan KE, Waddington LJ, Kushkaki F, Goodall L, McLean KM, Forsythe JS, Hartley PG. Chirality effects at each amino acid position on tripeptide self-assembly into hydrogel biomaterials. NANOSCALE 2014; 6:5172-80. [PMID: 24700146 DOI: 10.1039/c3nr06752a] [Citation(s) in RCA: 108] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Hydrogels formed by ultrashort peptides are emerging as cost-effective materials for cell culture. However, L-peptides are labile to proteases, while their D-isomers are thought to not support cell growth as well. In contrast, the self-assembly behaviour and biological performance of heterochiral peptides (i.e., made of both d and l amino acids) are largely unknown. In this study, we evaluate the effects of amino acid chirality on tripeptide self-assembly and hydrogelation at physiological pH, and cytocompatibility in fibroblast cell culture. A series of uncapped hydrophobic tripeptides with all combinations of d, l amino acids was prepared, tested for self-assembly under physiological conditions, and analysed by circular dichroism, FT-IR, cryo-TEM, AFM, and Thioflavin T fluorescence imaging. Amino acid chirality has a profound effect on the peptides' supramolecular behaviour. Only selected isomers form hydrogels, and of amyloid structure, as confirmed by rheology and XRD. Importantly, they are able to maintain the viability and proliferation of fibroblasts in vitro. This study identifies two heterochiral gels that perform well in cell culture and will assist in the design of innovative and cost-effective peptide gel biomaterials.
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Affiliation(s)
- S Marchesan
- CSIRO Materials Science and Engineering, Bayview Avenue, Clayton, VIC 3168, Australia.
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99
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Wu D, Du X, Shi J, Zhou J, Xu B. Supramolecular Nanofibers/Hydrogels of the Conjugates of Nucleobase, Saccharide, and Amino Acids. CHINESE J CHEM 2014. [DOI: 10.1002/cjoc.201400092] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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100
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Li Y, Ding Y, Qin M, Cao Y, Wang W. An enzyme-assisted nanoparticle crosslinking approach to enhance the mechanical strength of peptide-based supramolecular hydrogels. Chem Commun (Camb) 2014; 49:8653-5. [PMID: 23948779 DOI: 10.1039/c3cc45127e] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
In this work we reported an enzyme-assisted nanoparticle crosslinking (EANC) strategy to enhance the mechanical stability of peptide-based supramolecular hydrogels by more than 3000 times.
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Affiliation(s)
- Ying Li
- Jiangsu Key Laboratory of Atmospheric Environment Monitoring & Pollution Control, College of Environmental Science & Engineering, Nanjing University of Information Science & Technology, 219 Ningliu Road, Nanjing, Jiangsu 210044, P. R. China.
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