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Veronese E, Pigliacelli C, Bergamaschi G, Terraneo G, Dichiarante V, Metrangolo P. Acid⋅⋅⋅Amide Supramolecular Synthon for Tuning Amino Acid-Based Hydrogels' Properties. Chemistry 2023; 29:e202301743. [PMID: 37435732 DOI: 10.1002/chem.202301743] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 07/09/2023] [Accepted: 07/11/2023] [Indexed: 07/13/2023]
Abstract
Supramolecular hydrogels formed by the self-assembly of N-Fmoc-l-phenylalanine derivatives are gaining relevance for several applications in the materials and biomedical fields. In the challenging attempt to predict or tune their properties, we selected Fmoc-pentafluorophenylalanine (1) as a model efficient gelator, and studied its self-assembly in the presence of benzamide (2), a non-gelator able to form strong hydrogen bonds with the amino acid carboxylic group. Equimolar mixtures of 1 and 2 in organic solvents afforded a 1 : 1 co-crystal thanks to the formation of an acid⋅⋅⋅amide heterodimeric supramolecular synthon. The same synthon occurred in the transparent gels formed by mixing the two components in 1 : 1 ratio in aqueous media, as revealed by structural, spectroscopic, and thermal characterizations performed on both the co-crystal powder and the lyophilized hydrogel. These findings revealed the possibility of modulating the properties of amino acid-based hydrogels by involving the gelator in the formation of a co-crystal. Such a crystal engineering-based approach is shown also to be useful for the time-delayed release of suitable bioactive molecules, when involved as hydrogel coformers.
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Affiliation(s)
- Eleonora Veronese
- Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Politecnico di Milano, via Luigi Mancinelli 7, 20131, Milan, Italy
| | - Claudia Pigliacelli
- Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Politecnico di Milano, via Luigi Mancinelli 7, 20131, Milan, Italy
| | - Greta Bergamaschi
- Istituto di Scienze e Tecnologie Chimiche "Giulio Natta" (SCITEC-CNR), National Research Council of Italy, via Mario Bianco 9, 20131, Milan, Italy
| | - Giancarlo Terraneo
- Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Politecnico di Milano, via Luigi Mancinelli 7, 20131, Milan, Italy
- Istituto di Scienze e Tecnologie Chimiche "Giulio Natta" (SCITEC-CNR), National Research Council of Italy, via Mario Bianco 9, 20131, Milan, Italy
| | - Valentina Dichiarante
- Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Politecnico di Milano, via Luigi Mancinelli 7, 20131, Milan, Italy
| | - Pierangelo Metrangolo
- Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Politecnico di Milano, via Luigi Mancinelli 7, 20131, Milan, Italy
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2
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Thomson L, McDowall D, Marshall L, Marshall O, Ng H, Homer WJA, Ghosh D, Liu W, Squires AM, Theodosiou E, Topham PD, Serpell LC, Poole RJ, Seddon A, Adams DJ. Transferring Micellar Changes to Bulk Properties via Tunable Self-Assembly and Hierarchical Ordering. ACS NANO 2022; 16:20497-20509. [PMID: 36441928 PMCID: PMC9798853 DOI: 10.1021/acsnano.2c06898] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Accepted: 11/21/2022] [Indexed: 06/16/2023]
Abstract
Hierarchical self-assembly is an effective means of preparing useful materials. However, control over assembly across length scales is a difficult challenge, often confounded by the perceived need to redesign the molecular building blocks when new material properties are needed. Here, we show that we can treat a simple dipeptide building block as a polyelectrolyte and use polymer physics approaches to explain the self-assembly over a wide concentration range. This allows us to determine how entangled the system is and therefore how it might be best processed, enabling us to prepare interesting analogues to threads and webs, as well as films that lose order on heating and "noodles" which change dimensions on heating, showing that we can transfer micellar-level changes to bulk properties all from a single building block.
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Affiliation(s)
- Lisa Thomson
- School
of Chemistry, University of Glasgow, Glasgow G12 8QQ, U.K.
| | - Daniel McDowall
- School
of Chemistry, University of Glasgow, Glasgow G12 8QQ, U.K.
| | - Libby Marshall
- School
of Chemistry, University of Glasgow, Glasgow G12 8QQ, U.K.
| | - Olivia Marshall
- School
of Chemistry, University of Glasgow, Glasgow G12 8QQ, U.K.
| | - Henry Ng
- School
of Engineering, University of Liverpool, Liverpool L69 3GH, U.K.
| | - W. Joseph A. Homer
- Aston
Institute of Materials Research, Aston University, Birmingham B4 7ET, U.K.
| | - Dipankar Ghosh
- School
of Chemistry, University of Glasgow, Glasgow G12 8QQ, U.K.
| | - Wanli Liu
- Department
of Chemistry, University of Bath, Bath BA2 7AY, U.K.
| | - Adam M. Squires
- Department
of Chemistry, University of Bath, Bath BA2 7AY, U.K.
| | - Eirini Theodosiou
- Aston
Institute of Materials Research, Aston University, Birmingham B4 7ET, U.K.
| | - Paul D. Topham
- Aston
Institute of Materials Research, Aston University, Birmingham B4 7ET, U.K.
| | - Louise C. Serpell
- Sussex
Neuroscience, School of Life Sciences, University
of Sussex, Falmer BN1 9QG, U.K.
| | - Robert J. Poole
- School
of Engineering, University of Liverpool, Liverpool L69 3GH, U.K.
| | - Annela Seddon
- School of
Physics, HH Wills Physics Laboratory, University
of Bristol, Tyndall Avenue, Bristol BS8 1TL, U.K.
| | - Dave J. Adams
- School
of Chemistry, University of Glasgow, Glasgow G12 8QQ, U.K.
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3
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Song Q, Wu L, Li S, Zhao G, Cheng Y, Zhou Y. Aggregation of konjac glucomannan by ethanol under low-alkali treatment. Food Chem X 2022; 15:100407. [PMID: 36211790 PMCID: PMC9532775 DOI: 10.1016/j.fochx.2022.100407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 07/24/2022] [Accepted: 08/01/2022] [Indexed: 11/30/2022] Open
Abstract
Microstructure of KGM alcogels is distinct from that of normal KGM gels. Gel network of EAKgel is more heterogeneous than that of EKgel. Ethanol arranges the aggregation of deacetylated KGM chains. Both structure and function of KGM aggregates are altered by ethanol and alkali. Solvent quality deterioration drives the formation of low-alkali KGM alcogels.
Utilizing ethanol in konjac glucomannan (KGM) gelation has important food processing applications. Typically, ethanol positively impacts the formation of low-alkali KGM gels and dramatically changes their physical properties, but the role of ethanol on the aggregation of KGM chains and the resultant gelation is less well understood. This study presents the distinct microstructures of low-alkali KGM gels incorporating ethanol. The fibril diameter and mesh size were determined to be 262.3 ± 22.3 nm and 2.680 ± 0.035 μm in average, contributing to a higher degree of anisotropy of such a gel network. Ethanol favors intermolecular aggregation by increasing the Rg of small-sized aggregates to 2.10 nm. The FTIR and temperature-cycled rheological studies suggest there are hydrophobic interactions stabilizing the gel network with the assistance of hydrogen bonds. The spatial confinement of deacetylated KGM chains as the solvent quality deteriorates by incorporating ethanol may arrange the aggregation and induce the structural reorganization in gel formation.
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Zheng J, Song X, Yang Z, Yin C, Luo W, Yin C, Ni Y, Wang Y, Zhang Y. Self-assembly hydrogels of therapeutic agents for local drug delivery. J Control Release 2022; 350:898-921. [PMID: 36089171 DOI: 10.1016/j.jconrel.2022.09.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 09/01/2022] [Accepted: 09/02/2022] [Indexed: 10/14/2022]
Abstract
Advanced drug delivery systems are of vital importance to enhance therapeutic efficacy. Among various recently developed formulations, self-assembling hydrogels composed of therapeutic agents have shown promising potential for local drug delivery owing to their excellent biocompatibility, high drug-loading efficiency, low systemic toxicity, and sustained drug release behavior. In particular, therapeutic agents self-assembling hydrogels with well-defined nanostructures are beneficial for direct delivery to the target site via injection, not only improving drug availability, but also extending their retention time and promoting cellular uptake. In brief, the self-assembly approach offers better opportunities to improve the precision of pharmaceutical treatment and achieve superior treatment efficacies. In this review, we intend to cover the recent developments in therapeutic agent self-assembling hydrogels. First, the molecular structures, self-assembly mechanisms, and application of self-assembling hydrogels are systematically outlined. Then, we summarize the various self-assembly strategies, including the single therapeutic agent, metal-coordination, enzyme-instruction, and co-assembly of multiple therapeutic agents. Finally, the potential challenges and future perspectives are discussed. We hope that this review will provide useful insights into the design and preparation of therapeutic agent self-assembling hydrogels.
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Affiliation(s)
- Jun Zheng
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Xianwen Song
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Zhaoyu Yang
- Institute of Integrative Medicine, Department of Integrated Traditional Chinese and Western Medicine, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Chao Yin
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Weikang Luo
- Institute of Integrative Medicine, Department of Integrated Traditional Chinese and Western Medicine, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Chunyang Yin
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Yaqiong Ni
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Yang Wang
- Institute of Integrative Medicine, Department of Integrated Traditional Chinese and Western Medicine, Xiangya Hospital, Central South University, Changsha 410008, China.
| | - Yi Zhang
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China.
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5
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Panja S, Dietrich B, Smith A, Seddon A, Adams DJ. Controlling self‐sorting versus co‐assembly in supramolecular gels. CHEMSYSTEMSCHEM 2022. [DOI: 10.1002/syst.202200008] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
| | | | | | | | - Dave John Adams
- University of Glasgow Chemistry University of Glasgow G12 8QQ Glagsow UNITED KINGDOM
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6
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Omar J, Ponsford D, Dreiss CA, Lee TC, Loh XJ. Supramolecular Hydrogels: Design Strategies and Contemporary Biomedical Applications. Chem Asian J 2022; 17:e202200081. [PMID: 35304978 DOI: 10.1002/asia.202200081] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 03/08/2022] [Indexed: 12/19/2022]
Abstract
Self-assembly of supramolecular hydrogels is driven by dynamic, non-covalent interactions between molecules. Considerable research effort has been exerted to fabricate and optimise supramolecular hydrogels that display shear-thinning, self-healing, and reversibility, in order to develop materials for biomedical applications. This review provides a detailed overview of the chemistry behind the dynamic physicochemical interactions that sustain hydrogel formation (hydrogen bonding, hydrophobic interactions, ionic interactions, metal-ligand coordination, and host-guest interactions). Novel design strategies and methodologies to create supramolecular hydrogels are highlighted, which offer promise for a wide range of applications, specifically drug delivery, wound healing, tissue engineering and 3D bioprinting. To conclude, future prospects are briefly discussed, and consideration given to the steps required to ultimately bring these biomaterials into clinical settings.
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Affiliation(s)
- Jasmin Omar
- Institute of Pharmaceutical Science, King's College London, 150 Stamford Street, SE1 9NH, London, UK.,Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), Singapore
| | - Daniel Ponsford
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), Singapore.,Department of Chemistry, University College London, London, WC1H 0AJ, UK.,Institute for Materials Discovery, University College London, London, WC1E 7JE, UK
| | - Cécile A Dreiss
- Institute of Pharmaceutical Science, King's College London, 150 Stamford Street, SE1 9NH, London, UK
| | - Tung-Chun Lee
- Department of Chemistry, University College London, London, WC1H 0AJ, UK.,Institute for Materials Discovery, University College London, London, WC1E 7JE, UK
| | - Xian Jun Loh
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), Singapore.,Department of Materials Science and Engineering, National University of Singapore, Singapore
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7
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Using Rheology to Understand Transient and Dynamic Gels. Gels 2022; 8:gels8020132. [PMID: 35200514 PMCID: PMC8872063 DOI: 10.3390/gels8020132] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 02/14/2022] [Accepted: 02/16/2022] [Indexed: 02/06/2023] Open
Abstract
Supramolecular gels can be designed such that pre-determined changes in state occur. For example, systems that go from a solution (sol) state to a gel state and then back to a sol state can be prepared using chemical processes to control the onset and duration of each change of state. Based on this, more complex systems such as gel-to-sol-to-gel and gel-to-gel-to-gel systems can be designed. Here, we show that we can provide additional insights into such systems by using rheological measurements at varying values of frequency or strain during the evolution of the systems. Since the different states are affected to different degrees by the frequency and/or strain applied, this allows us to better understand and follow the changes in state in such systems.
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8
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Ghosh A, Dubey SK, Patra M, Mandal J, Ghosh NN, Saha R, Bhattacharjee S. Coiled‐Coil Helical Nano‐Assemblies: Shape Persistent, Thixotropic, and Tunable Chiroptical Properties. ChemistrySelect 2022. [DOI: 10.1002/slct.202103942] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Angshuman Ghosh
- Department of Chemistry Kazi Nazrul University Asansol 713340 West Bengal India
- TCG Lifescience, Block BN, Sector V, Saltlake Kolkata 700156 West Bengal India
| | - Soumen Kumar Dubey
- Department of Chemistry Kazi Nazrul University Asansol 713340 West Bengal India
| | - Maxcimilan Patra
- Department of Chemistry Kazi Nazrul University Asansol 713340 West Bengal India
| | - Jishu Mandal
- CIF Biophysical Laboratory CSIR-Indian Institute of Chemical Biology Jadavpur Kolkata 700032 West Bengal India
| | - Narendra Nath Ghosh
- Department of Chemistry University of Gour Banga Mokdumpur- 732103 West Bengal India
| | - Rajat Saha
- Department of Chemistry Kazi Nazrul University Asansol 713340 West Bengal India
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9
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Panja S, Dietrich B, Adams DJ. Controlling Syneresis of Hydrogels Using Organic Salts. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202115021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Santanu Panja
- School of Chemistry University of Glasgow Glasgow G12 8QQ UK
| | - Bart Dietrich
- School of Chemistry University of Glasgow Glasgow G12 8QQ UK
| | - Dave J. Adams
- School of Chemistry University of Glasgow Glasgow G12 8QQ UK
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10
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Panja S. Dosimetric gelator probes and their application as sensors. J INDIAN CHEM SOC 2022. [DOI: 10.1016/j.jics.2022.100359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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11
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Panja S, Dietrich B, Adams DJ. Controlling Syneresis of Hydrogels Using Organic Salts. Angew Chem Int Ed Engl 2021; 61:e202115021. [PMID: 34825758 PMCID: PMC9299832 DOI: 10.1002/anie.202115021] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Indexed: 12/02/2022]
Abstract
Supramolecular hydrogels can spontaneously undergo syneresis through fibre–fibre interactions and expel significant amounts of water upon aging. In this process, the hydrophobicity of fibres which regulates the 3D‐rearrangement of the self‐assembled structures during syneresis is important. Here, we show that we can control the hydrophobic microenvironment of gels by incorporating organic salts into the co‐assembled gel fibres thereby enabling control of the macroscopic gel volume phase transition.
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Affiliation(s)
- Santanu Panja
- School of Chemistry, University of Glasgow, Glasgow, G12 8QQ, UK
| | - Bart Dietrich
- School of Chemistry, University of Glasgow, Glasgow, G12 8QQ, UK
| | - Dave J Adams
- School of Chemistry, University of Glasgow, Glasgow, G12 8QQ, UK
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