1
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Jones C, Kershaw Cook LJ, Slater AG, Yufit DS, Steed JW. Scrolling in Supramolecular Gels: A Designer's Guide. CHEMISTRY OF MATERIALS : A PUBLICATION OF THE AMERICAN CHEMICAL SOCIETY 2024; 36:2799-2809. [PMID: 38558920 PMCID: PMC10976645 DOI: 10.1021/acs.chemmater.3c03013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 02/26/2024] [Accepted: 02/27/2024] [Indexed: 04/04/2024]
Abstract
Gelation by small molecules is a topic of enormous importance in catalysis, nanomaterials, drug delivery, and pharmaceutical crystallization. The mechanism by which gelators self-organize into a fibrous gel network is poorly understood. Herein, we describe the crystal structures and gelation properties of a library of bis(urea) compounds and show, via molecular dynamics simulations, how gelator aggregation progresses from a continuous pattern of supramolecular motifs to a homogeneous fiber network. Our model suggests that lamellae with asymmetric surfaces scroll into uniform unbranched fibrils, while sheets with symmetric surfaces undergo stacking to form crystals. The self-assembly of asymmetric lamellae is associated with specific molecular features, such as the presence of narrow and flexible end groups with high packing densities, and likely represents a general mechanism for the formation of small-molecule gels.
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Affiliation(s)
| | - Laurence J. Kershaw Cook
- Department
of Chemistry and Materials Innovation Factory, University of Liverpool, Crown Street, Liverpool L69 7ZD, U.K.
| | - Anna G. Slater
- Department
of Chemistry and Materials Innovation Factory, University of Liverpool, Crown Street, Liverpool L69 7ZD, U.K.
| | - Dmitry S. Yufit
- Department
of Chemistry, Durham University, Durham DH1 3LE, U.K.
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2
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Khan F, Das S. Modified Low Molecular Weight Pure and Engineered Gels: A Review of Strategies towards Their Development. ChemistrySelect 2022. [DOI: 10.1002/slct.202200205] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Finaz Khan
- Department of Chemistry Amity Institute of Applied Sciences Amity University Kolkata Major Arterial Road, Action Area II, Kadampukur Village, Rajarhat, Newtown West Bengal 700135 India
| | - Susmita Das
- Department of Chemistry Amity Institute of Applied Sciences Amity University Kolkata Major Arterial Road, Action Area II, Kadampukur Village, Rajarhat, Newtown West Bengal 700135 India
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3
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Abstract
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Low molecular weight
gels are formed by the self-assembly of small
molecules into anisotropic structures that form a network capable
of immobilizing the solvent. Such gels are common, with a huge number
of different examples existing, and they have many applications. However,
there are still significant gaps in our understanding of these systems
and challenges that need to be addressed if we are to be able to fully
design such systems. Here, a number of these challenges are discussed.
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Affiliation(s)
- Dave J Adams
- School of Chemistry, University of Glasgow, Glasgow G12 8QQ, United Kingdom
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4
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Dawn A, Pajoubpong J, Mesmer A, Mirzamani M, He L, Kumari H. Manipulating Assemblies in Metallosupramolecular Gels, Driven by Isomeric Ligands, Metal Coordination, and Adaptive Binary Gelator Systems. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:1705-1715. [PMID: 35078313 DOI: 10.1021/acs.langmuir.1c02738] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Metallosupramolecular gel (MSG) is a unique combination of metal-ligand coordination chemistry and supramolecular gel chemistry with extraordinary adaptivity and softness. Such materials find broad uses in industry, pharmaceutical and biomedical sectors, and in technology generation among many others. Pyridyl-appended bis(urea) gelator systems have been extensively studied as potential MSG-forming materials in the presence of various metal ions. The previous molecular engineering approaches depicted competitive intermolecular and intramolecular binding modes involving urea and pyridyl groups and further fine-tuned by the presence of various molecular spacers. In those studies, formation of intermolecular hydrogen bonding among urea moieties to form urea tape was found to be the key factor in one-dimensional assembly and gel formation. In the present study, we show how two isomeric pyridyl-appended bis(urea) ligands can be designed appropriately to essentially eliminate the interference of competitive factors, leaving the intermolecular urea assembly practically unaffected even in the presence of metal ions. We found that one of the two ligands (L2) and the mixed ligand (L1 + L2) assemblies formed gel in the presence and absence of various metal ions. A metal ion with a linear coordination geometry significantly strengthened the gels. Moreover, an inherently weak L1 + L2 assembly appears to be more adaptive in accommodating larger metal ions especially with nonlinear coordination geometry preferences. Small-angle neutron scattering and rheological, spectroscopic, and morphological characterizations, collectively, capture a detailed interplay among ligand assembly, metal-ligand coordination, and adaptivity, driven by the pure versus mixed ligand assemblies. The knowledge gathered from the present study would be highly beneficial in engineering the metallosupramolecular polymeric assemblies toward their functional applications.
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Affiliation(s)
- Arnab Dawn
- James L. Winkle College of Pharmacy, University of Cincinnati, 231 Albert Sabin Way, Medical Science Building, Cincinnati, Ohio 45267-0514, United States
| | - Jinnipha Pajoubpong
- James L. Winkle College of Pharmacy, University of Cincinnati, 231 Albert Sabin Way, Medical Science Building, Cincinnati, Ohio 45267-0514, United States
| | - Amira Mesmer
- James L. Winkle College of Pharmacy, University of Cincinnati, 231 Albert Sabin Way, Medical Science Building, Cincinnati, Ohio 45267-0514, United States
| | - Marzieh Mirzamani
- James L. Winkle College of Pharmacy, University of Cincinnati, 231 Albert Sabin Way, Medical Science Building, Cincinnati, Ohio 45267-0514, United States
| | - Lilin He
- Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Harshita Kumari
- James L. Winkle College of Pharmacy, University of Cincinnati, 231 Albert Sabin Way, Medical Science Building, Cincinnati, Ohio 45267-0514, United States
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5
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Komiyama T, Harada Y, Hase T, Mori S, Kimura S, Yokoya M, Yamanaka M. Effect of Alkyl Chain Length of N-Alkyl-N'-(2-benzylphenyl)ureas on Gelation. Chem Asian J 2021; 16:1750-1755. [PMID: 34008323 DOI: 10.1002/asia.202100433] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 05/17/2021] [Indexed: 11/07/2022]
Abstract
Urea derivatives that were substituted with a 2-benzylphenyl group and an alkyl group functioned as low molecular weight gelators for various organic solvents and ionic liquids. Urea derivatives with long alkyl chains were effective for the gelation of polar solvents. However, they were not suitable for the gelation of non-polar solvents, whereas urea derivatives with short alkyl chains were effective. Ionic liquids were similar to polar solvents in that urea derivatives with long alkyl chains were the most effective gelators. The physical properties of the formed supramolecular gels were analyzed by dynamic viscoelasticity measurements using a rheometer.
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Affiliation(s)
- Tomoki Komiyama
- Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo, 204-8588, Japan.,Department of Chemistry, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka, 422-8529, Japan
| | - Yoko Harada
- Department of Chemistry, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka, 422-8529, Japan
| | - Takayuki Hase
- Department of Chemistry, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka, 422-8529, Japan
| | - Sota Mori
- Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo, 204-8588, Japan
| | - Shinya Kimura
- Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo, 204-8588, Japan
| | - Masashi Yokoya
- Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo, 204-8588, Japan
| | - Masamichi Yamanaka
- Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo, 204-8588, Japan
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6
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Ma X, Qiao B, Lai Y, Geng Y, Le J, Feng E, Han X, Liu M. Intelligent writable material based on a supramolecular self-assembly gel. SOFT MATTER 2021; 17:1463-1467. [PMID: 33544112 DOI: 10.1039/d1sm00012h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
A simple dual acylhydrazone-functionalized gelator (G1) has been designed and synthesized, and it was found to form a supramolecular organogel (G1-gel) in a mixed solvent of DMF-H2O. The gelator solution shows brilliant blue light upon mixing with Mg2+; this blue light can be erased by saliva or CO32-. Owing to this characteristic, a smart erasable writable material was prepared.
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Affiliation(s)
- Xinxian Ma
- College of Chemistry and Chemical Engineering, Ningxia Normal University, Guyuan 756000, People's Republic of China.
| | - Bo Qiao
- College of Chemistry and Chemical Engineering, Ningxia Normal University, Guyuan 756000, People's Republic of China.
| | - Yingshan Lai
- College of Chemistry and Chemical Engineering, Ningxia Normal University, Guyuan 756000, People's Republic of China.
| | - Yutao Geng
- College of Chemistry and Chemical Engineering, Ningxia Normal University, Guyuan 756000, People's Republic of China.
| | - Jinlong Le
- College of Chemistry and Chemical Engineering, Ningxia Normal University, Guyuan 756000, People's Republic of China.
| | - Enke Feng
- College of Chemistry and Chemical Engineering, Ningxia Normal University, Guyuan 756000, People's Republic of China.
| | - Xinning Han
- College of Chemistry and Chemical Engineering, Ningxia Normal University, Guyuan 756000, People's Republic of China.
| | - Minghua Liu
- CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing, P. R. China.
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7
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Yokoya M, Kimura S, Yamanaka M. Urea Derivatives as Functional Molecules: Supramolecular Capsules, Supramolecular Polymers, Supramolecular Gels, Artificial Hosts, and Catalysts. Chemistry 2021; 27:5601-5614. [DOI: 10.1002/chem.202004367] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 11/11/2020] [Indexed: 01/02/2023]
Affiliation(s)
- Masashi Yokoya
- Meiji Pharmaceutical University (MPU) 2-522-1 Noshio Kiyose 204-8588 Japan
| | - Shinya Kimura
- Meiji Pharmaceutical University (MPU) 2-522-1 Noshio Kiyose 204-8588 Japan
| | - Masamichi Yamanaka
- Meiji Pharmaceutical University (MPU) 2-522-1 Noshio Kiyose 204-8588 Japan
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8
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Sharma S, Kumari M, Singh N. A C 3-symmetrical tripodal acylhydrazone organogelator for the selective recognition of cyanide ions in the gel and solution phases: practical applications in food samples. SOFT MATTER 2020; 16:6532-6538. [PMID: 32597463 DOI: 10.1039/d0sm00906g] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The method of formation of low-molecular-weight organogelators via modifications in the substituents has been demonstrated. The organogelator formed can selectively sense cyanide ions in the gel and solution phases. Interaction of cyanide with acylhydrazone was noticeably visible to the "naked eye" and was proved using 1H NMR titrations. Notably, the ligand has been successfully explored for the recognition of cyanide ions in food samples. Additionally, low-cost cotton swabs coated with the organogelator showed rapid, on-site recognition of cyanide ions. The structure-property relationship discovered in the given study provides insight into the development of novel, cost-effective multifunctional materials.
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Affiliation(s)
- Shilpa Sharma
- Department of Chemistry, Indian Institute of Technology Ropar, Rupnagar, Punjab 140001, India.
| | - Manisha Kumari
- Department of Chemistry, Indian Institute of Technology Ropar, Rupnagar, Punjab 140001, India.
| | - Narinder Singh
- Department of Chemistry, Indian Institute of Technology Ropar, Rupnagar, Punjab 140001, India.
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9
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Controllable mechanical properties of anthraquinone-urea gel depending on the catalyst effect and their sensing ability for fluoride anion. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.109774] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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10
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Ng KKL, Dimitrovski M, Boles JE, Ellaby RJ, White LJ, Hiscock JR. Towards the use of (pseudo) nucleobase substituted amphiphiles as DNA nucleotide mimics and antimicrobial agents. Supramol Chem 2020. [DOI: 10.1080/10610278.2020.1755038] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
| | | | - Jessica E. Boles
- School of Physical Sciences, University of Kent, Canterbury, UK
- School of Biosciences, University of Kent, Canterbury, UK
| | | | - Lisa J. White
- School of Physical Sciences, University of Kent, Canterbury, UK
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11
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Van Lommel R, Zhao J, De Borggraeve WM, De Proft F, Alonso M. Molecular dynamics based descriptors for predicting supramolecular gelation. Chem Sci 2020. [DOI: 10.1039/d0sc00129e] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Four molecular dynamics-based descriptors were derived able to classify gelator–solvent combinations as a gel, precipitate or clear solution.
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Affiliation(s)
- Ruben Van Lommel
- Molecular Design and Synthesis
- Department of Chemistry
- KU Leuven
- 3001 Leuven
- Belgium
| | - Jianyu Zhao
- Eenheid Algemene Chemie (ALGC)
- Vrije Universiteit Brussel (VUB)
- 1050 Brussels
- Belgium
| | - Wim M. De Borggraeve
- Molecular Design and Synthesis
- Department of Chemistry
- KU Leuven
- 3001 Leuven
- Belgium
| | - Frank De Proft
- Eenheid Algemene Chemie (ALGC)
- Vrije Universiteit Brussel (VUB)
- 1050 Brussels
- Belgium
| | - Mercedes Alonso
- Eenheid Algemene Chemie (ALGC)
- Vrije Universiteit Brussel (VUB)
- 1050 Brussels
- Belgium
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12
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Sasmal S, Roy Chowdhury S, Podder D, Haldar D. Urea-Appended Amino Acid To Vitalize Yeast Growth, Enhance Fermentation, and Promote Ethanol Production. ACS OMEGA 2019; 4:13172-13179. [PMID: 31460444 PMCID: PMC6705197 DOI: 10.1021/acsomega.9b01260] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Accepted: 07/25/2019] [Indexed: 06/10/2023]
Abstract
The development of sustainable protocols for enhancing the production of ethanol is highly important for its utilization in automotive transportation and energy sector. Up to 15% ethanol can blend with diesel to make e-diesel that can be used in fuel compression ignition engine. Urea-modified amino acids can be used as a very good vitalizer for yeast (Saccharomyces cerevisiae, Baker's yeast (ATCC 204508)) growth and thus promote ethanol production. A simple, one-step, room-temperature synthetic procedure has been developed for urea-appended α-amino acids from amino acid by treatment with KCNO. Single-crystal X-ray studies confirm the successful synthesis and molecular structures of the urea-appended α-amino acids. Out of 20 urea-appended amino acids, Arg-, Pro-, His-, and Gln-containing compounds promote yeast growth significantly after 12 h at pH 6.8 and 38 °C. These compounds are nontoxic. The urea-appended Arg shows 2-fold increase of yeast growth. However, urea-appended m-aminobenzoic acid and p-aminobenzoic acid inhibit yeast growth. NMR experiments confirmed the enhanced production of ethanol by glucose fermentation in the presence of 2.5 μmol urea-appended Arg. Not only glucose but also commercially available sugars and feedstock of the starch slurry drained out after boiling of rice exhibit significant enhancement of ethanol production under same conditions.
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Affiliation(s)
- Supriya Sasmal
- Department of Chemical Sciences, Indian Institute of Science Education and Research
Kolkata, Mohanpur 741246, West Bengal, India
| | - Srayoshi Roy Chowdhury
- Department of Chemical Sciences, Indian Institute of Science Education and Research
Kolkata, Mohanpur 741246, West Bengal, India
| | - Debasish Podder
- Department of Chemical Sciences, Indian Institute of Science Education and Research
Kolkata, Mohanpur 741246, West Bengal, India
| | - Debasish Haldar
- Department of Chemical Sciences, Indian Institute of Science Education and Research
Kolkata, Mohanpur 741246, West Bengal, India
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13
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Rutgeerts LAJ, Soultan AH, Subramani R, Toprakhisar B, Ramon H, Paderes MC, De Borggraeve WM, Patterson J. Robust scalable synthesis of a bis-urea derivative forming thixotropic and cytocompatible supramolecular hydrogels. Chem Commun (Camb) 2019; 55:7323-7326. [PMID: 31168525 DOI: 10.1039/c9cc02927c] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Synthetic hydrogels address a need for affordable, industrially scalable scaffolds for tissue engineering. Herein, a novel low molecular weight gelator is reported that forms self-healing supramolecular hydrogels. Its robust synthesis can be performed in a solvent-free manner using ball milling. Strikingly, encapsulated cells spread and proliferate without specific cell adhesion ligands in the nanofibrous material.
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14
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Symmetrical disubstituted carbohydrazides: From solid-state structures to cytotoxic and antibacterial activity. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.09.092] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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15
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White LJ, Tyuleva SN, Wilson B, Shepherd HJ, Ng KKL, Holder SJ, Clark ER, Hiscock JR. Towards the Prediction of Global Solution State Properties for Hydrogen Bonded, Self-Associating Amphiphiles. Chemistry 2018; 24:7761-7773. [PMID: 29633393 PMCID: PMC6055828 DOI: 10.1002/chem.201801280] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Indexed: 12/20/2022]
Abstract
Through this extensive structure-property study we show that critical micelle concentration correlates with self-associative hydrogen bond complex formation constant, when combined with outputs from low level, widely accessible, computational models. Herein, we bring together a series of 39 structurally related molecules related by stepwise variation of a hydrogen bond donor-acceptor amphiphilic salt. The self-associative and corresponding global properties for this family of compounds have been studied in the gas, solid and solution states. Within the solution state, we have shown the type of self-associated structure present to be solvent dependent. In DMSO, this class of compound show a preference for hydrogen bonded dimer formation, however moving into aqueous solutions the same compounds are found to form larger self-associated aggregates. This observation has allowed us the unique opportunity to investigate and begin to predict self-association events at both the molecular and extended aggregate level.
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Affiliation(s)
- Lisa J. White
- School of Physical SciencesUniversity of KentCanterburyKentCT2 7NHUnited Kingdom
| | - Stilyana N. Tyuleva
- School of Physical SciencesUniversity of KentCanterburyKentCT2 7NHUnited Kingdom
| | - Ben Wilson
- School of Physical SciencesUniversity of KentCanterburyKentCT2 7NHUnited Kingdom
| | - Helena J. Shepherd
- School of Physical SciencesUniversity of KentCanterburyKentCT2 7NHUnited Kingdom
| | - Kendrick K. L. Ng
- School of Physical SciencesUniversity of KentCanterburyKentCT2 7NHUnited Kingdom
| | - Simon J. Holder
- School of Physical SciencesUniversity of KentCanterburyKentCT2 7NHUnited Kingdom
| | - Ewan R. Clark
- School of Physical SciencesUniversity of KentCanterburyKentCT2 7NHUnited Kingdom
| | - Jennifer R. Hiscock
- School of Physical SciencesUniversity of KentCanterburyKentCT2 7NHUnited Kingdom
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16
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Dixit MK, Dubey M. Li+-Induced fluorescent metallogel: a case of ESIPT-CHEF and ICT phenomenon. Phys Chem Chem Phys 2018; 20:23762-23772. [DOI: 10.1039/c8cp04579h] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A fluorescent metallogel has been synthesized from non-fluorescent ingredients viz. the smallest possible LMW aromatic symmetrical gelator 1 and LiOH, whereas KOH produces a non-fluorescent solution, and regioisomer 2 with LiOH shows an ICT assisted fluorescent precipitate rather than a metallogel.
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Affiliation(s)
- Manish Kumar Dixit
- Department of Chemistry
- Indian Institute of Technology (Banaras Hindu University)
- Varanasi – 221005
- India
| | - Mrigendra Dubey
- Soft Materials Research Laboratory
- Discipline of Metallurgy Engineering and Materials Science
- Indian Institute of Technology Indore
- Indore 453552
- India
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17
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Kwiatkowski A, Jędrzejewska B, Józefowicz M, Grela I, Ośmiałowski B. The trans/cis photoisomerization in hydrogen bonded complexes with stability controlled by substituent effects: 3-(6-aminopyridin-3-yl)acrylate case study. RSC Adv 2018; 8:23698-23710. [PMID: 35540258 PMCID: PMC9081750 DOI: 10.1039/c8ra03042a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Accepted: 06/19/2018] [Indexed: 01/29/2023] Open
Abstract
The association of aminopyridine-based acrylic acid and its salt was studied by NMR titration experiments. The AA (acceptor, acceptor) hydrogen-bonding pattern present in the salt forms a complex readily with a DD (donor, donor) hydrogen-bonding pattern of the substituted ureas even in polar and competitive environment. The double carbon–carbon bond in the acrylic acid derivative is subjected to photoisomerization. This is dependent on the association with substituted urea derivatives. The substituent in ureas influences the trans/cis isomerization kinetics and position of the photostationary state. Two mechanisms that influence the photoisomerization were proposed. To the best of our knowledge, the trans/cis photoisomerization influenced by the substituent in such a hydrogen-bonding pattern has not observed previously. It was shown that interaction with urea derivatives causes lowering of the trans-to-cis photoreaction rates. The association of aminopyridine-based acrylic acid and its salt was studied by NMR titration experiments.![]()
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Affiliation(s)
- Adam Kwiatkowski
- Faculty of Chemical Technology and Engineering
- UTP University of Science and Technology
- PL-85326 Bydgoszcz
- Poland
| | - Beata Jędrzejewska
- Faculty of Chemical Technology and Engineering
- UTP University of Science and Technology
- PL-85326 Bydgoszcz
- Poland
| | - Marek Józefowicz
- Faculty of Mathematics
- Physics and Informatics
- University of Gdańsk
- 80-308 Gdańsk
- Poland
| | - Izabela Grela
- Faculty of Chemical Technology and Engineering
- UTP University of Science and Technology
- PL-85326 Bydgoszcz
- Poland
| | - Borys Ośmiałowski
- Faculty of Chemistry
- Nicolaus Copernicus University in Toruń
- 87-100 Torun
- Poland
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18
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Panja S, Ghosh S, Ghosh K. Pyridine/pyridinium symmetrical bisamides as functional materials: aggregation, selective sensing and drug release. NEW J CHEM 2018. [DOI: 10.1039/c7nj03931j] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
We report the design, synthesis and gelation behavior of some 3-amino pyridine/pyridinium-based bisamides. As an application, gels are useful in the visual detection of cations, anions, biomolecules and in drug release.
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Affiliation(s)
- Santanu Panja
- Department of Chemistry
- University of Kalyani
- Kalyani-741235
- India
| | - Sumit Ghosh
- Department of Chemistry
- University of Kalyani
- Kalyani-741235
- India
| | - Kumaresh Ghosh
- Department of Chemistry
- University of Kalyani
- Kalyani-741235
- India
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19
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Ma X, Liu S, Zhang Z, Niu Y, Wu J. A novel thermo-responsive supramolecular organogel based on dual acylhydrazone: fluorescent detection for Al 3+ ions. SOFT MATTER 2017; 13:8882-8885. [PMID: 29167852 DOI: 10.1039/c7sm02141k] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A new dual acylhydrazone-functionalized gelator (L) has been synthesized, which behaves as a thermal-responsive supramolecular organogel (L-gel) in DMSO. This L-gel exhibits very weak fluorescence based on the photoinduced electron transfer (PET) mechanism. The L-gel can recognize Al3+ and assemble into an enhanced blue-light-emitting supramolecular metallogel (Al@gel).
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Affiliation(s)
- Xinxian Ma
- School of Chemistry and Chemical Engineering, Ningxia Normal University, Guyuan 756000, People's Republic of China.
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20
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White LJ, Wells NJ, Blackholly LR, Shepherd HJ, Wilson B, Bustone GP, Runacres TJ, Hiscock JR. Towards quantifying the role of hydrogen bonding within amphiphile self-association and resultant aggregate formation. Chem Sci 2017; 8:7620-7630. [PMID: 29568426 PMCID: PMC5848798 DOI: 10.1039/c7sc03888g] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Accepted: 09/21/2017] [Indexed: 11/30/2022] Open
Abstract
The role of hydrogen bonding within aggregate formation and CMC: can these properties be predicted by low level computational modelling?
Herein, we present a series of five tetrabutylammonium (TBA) sulfonate–urea amphiphilic salts. In solution these amphiphilic salts have been shown to form a variety of self-associated species. The proportion and type of which are both solvent and concentration dependent. In DMSO-d6 a variety of NMR experiments provide evidence towards the formation of mainly dimeric over larger aggregate species. Increasing the percentage of water was shown to increase the concentration of the larger aggregates over dimers in solution. A correlation was established between critical micelle concentration (CMC) values obtained in a 1 : 19 EtOH : H2O mixture, dimeric self-association constants obtained in a DMSO-d6 – 0.5% H2O and the results of simple semi-empirical PM6 computational modelling methods. This approach begins to quantify the role of hydrogen bonding in amphiphile self-association and the effects it imparts on surfactant properties. This consequently provides preliminary evidence that these properties maybe predicted by simple low level computational modelling techniques.
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Affiliation(s)
- L J White
- School of Physical Sciences , University of Kent , Park Wood Road , Canterbury , Kent CT2 7NH , UK . ; Tel: +44(0) 1227 823043
| | - N J Wells
- School of Chemistry , University of Southampton , Southampton , SO17 1BJ , UK
| | - L R Blackholly
- School of Physical Sciences , University of Kent , Park Wood Road , Canterbury , Kent CT2 7NH , UK . ; Tel: +44(0) 1227 823043
| | - H J Shepherd
- School of Physical Sciences , University of Kent , Park Wood Road , Canterbury , Kent CT2 7NH , UK . ; Tel: +44(0) 1227 823043
| | - B Wilson
- School of Physical Sciences , University of Kent , Park Wood Road , Canterbury , Kent CT2 7NH , UK . ; Tel: +44(0) 1227 823043
| | - G P Bustone
- School of Physical Sciences , University of Kent , Park Wood Road , Canterbury , Kent CT2 7NH , UK . ; Tel: +44(0) 1227 823043
| | - T J Runacres
- School of Biosciences , University of Kent , Park Wood Road , Canterbury , Kent CT2 7NH , UK
| | - J R Hiscock
- School of Physical Sciences , University of Kent , Park Wood Road , Canterbury , Kent CT2 7NH , UK . ; Tel: +44(0) 1227 823043
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Gumbs TL, White LJ, Wells NJ, Shepherd HJ, Hiscock JR. ‘Frustrated’ hydrogen-bonded self-associated systems as templates towards DNA incorporated nanostructure formation. Supramol Chem 2017. [DOI: 10.1080/10610278.2017.1351613] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Tamrin L. Gumbs
- Dr J. R. Hiscock, School of Physical Sciences, University of Kent, Canterbury, UK
| | - Lisa J. White
- Dr J. R. Hiscock, School of Physical Sciences, University of Kent, Canterbury, UK
| | - Neil J. Wells
- School of Chemistry, University of Southampton, Southampton, UK
| | - Helena J. Shepherd
- Dr J. R. Hiscock, School of Physical Sciences, University of Kent, Canterbury, UK
| | - Jennifer R. Hiscock
- Dr J. R. Hiscock, School of Physical Sciences, University of Kent, Canterbury, UK
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Nandi N, Baral A, Basu K, Roy S, Banerjee A. A dipeptide-based superhydrogel: Removal of toxic dyes and heavy metal ions from waste water. Biopolymers 2017; 108. [DOI: 10.1002/bip.22915] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Revised: 06/27/2016] [Accepted: 06/29/2016] [Indexed: 01/02/2023]
Affiliation(s)
| | - Abhishek Baral
- Department of Biological Chemistry; Indian Association for the Cultivation of Science; Jadavpur Kolkata- 700032 India
| | - Kingshuk Basu
- Department of Biological Chemistry; Indian Association for the Cultivation of Science; Jadavpur Kolkata- 700032 India
| | - Subhasish Roy
- Department of Biological Chemistry; Indian Association for the Cultivation of Science; Jadavpur Kolkata- 700032 India
| | - Arindam Banerjee
- Department of Biological Chemistry; Indian Association for the Cultivation of Science; Jadavpur Kolkata- 700032 India
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Pal KB, Mukhopadhyay B. Carbohydrate-BasedSafe Fuel Gel with Significant Self-healing Property. ChemistrySelect 2017. [DOI: 10.1002/slct.201601776] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Kumar Bhaskar Pal
- Department of Chemical Sciences; Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, Nadia; 741246 India
- Centre for Analysis and Synthesis; Department of Chemistry; Lund University; Box 124 221 00 Lund Sweden
| | - Balaram Mukhopadhyay
- Department of Chemical Sciences; Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, Nadia; 741246 India
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Colin O, Boufroura H, Thomassigny C, Perato S, Gaucher A, Marrot J, Prim D. Modular Urea-Based Catalytic Platforms Bearing Flexible Pyridylmethylamine and Rigid Pyridyl-Imidazolidine Fragments. European J Org Chem 2017. [DOI: 10.1002/ejoc.201601271] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Olivier Colin
- University of Versailles St-Quentin-en-Yvelines; Institut Lavoisier de Versailles UMR CNRS 8180; 45, avenue des Etats-Unis 78035 Versailles France
| | - Hamza Boufroura
- University of Versailles St-Quentin-en-Yvelines; Institut Lavoisier de Versailles UMR CNRS 8180; 45, avenue des Etats-Unis 78035 Versailles France
| | - Christine Thomassigny
- University of Versailles St-Quentin-en-Yvelines; Institut Lavoisier de Versailles UMR CNRS 8180; 45, avenue des Etats-Unis 78035 Versailles France
| | - Serge Perato
- University of Versailles St-Quentin-en-Yvelines; Institut Lavoisier de Versailles UMR CNRS 8180; 45, avenue des Etats-Unis 78035 Versailles France
| | - Anne Gaucher
- University of Versailles St-Quentin-en-Yvelines; Institut Lavoisier de Versailles UMR CNRS 8180; 45, avenue des Etats-Unis 78035 Versailles France
| | - Jérôme Marrot
- University of Versailles St-Quentin-en-Yvelines; Institut Lavoisier de Versailles UMR CNRS 8180; 45, avenue des Etats-Unis 78035 Versailles France
| | - Damien Prim
- University of Versailles St-Quentin-en-Yvelines; Institut Lavoisier de Versailles UMR CNRS 8180; 45, avenue des Etats-Unis 78035 Versailles France
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Arnedo-Sánchez L, Nonappa N, Bhowmik S, Hietala S, Puttreddy R, Lahtinen M, De Cola L, Rissanen K. Rapid self-healing and anion selectivity in metallosupramolecular gels assisted by fluorine–fluorine interactions. Dalton Trans 2017; 46:7309-7316. [DOI: 10.1039/c7dt00983f] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Metal complexes from perfluoroalkylamide terpyridine self-assemble into anion selective gels, which manifest self-healing and thermal rearrangement in aqueous dimethyl sulfoxide.
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Affiliation(s)
| | - Nonappa Nonappa
- Molecular Materials Group
- Department of Applied Physics
- Aalto University School of Science
- Espoo
- Finland
| | - Sandip Bhowmik
- University of Jyvaskyla
- Department of Chemistry
- Nanoscience Center
- Jyväskylä
- Finland
| | - Sami Hietala
- Department of Chemistry
- University of Helsinki
- Helsinki
- Finland
| | - Rakesh Puttreddy
- University of Jyvaskyla
- Department of Chemistry
- Nanoscience Center
- Jyväskylä
- Finland
| | - Manu Lahtinen
- University of Jyvaskyla
- Department of Chemistry
- Nanoscience Center
- Jyväskylä
- Finland
| | - Luisa De Cola
- ISIS
- Université de Strasbourg and CNRS UMR 7006
- Strasbourg 67000
- France
| | - Kari Rissanen
- University of Jyvaskyla
- Department of Chemistry
- Nanoscience Center
- Jyväskylä
- Finland
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Wezenberg SJ, Croisetu CM, Stuart MCA, Feringa BL. Reversible gel-sol photoswitching with an overcrowded alkene-based bis-urea supergelator. Chem Sci 2016; 7:4341-4346. [PMID: 30155080 PMCID: PMC6013809 DOI: 10.1039/c6sc00659k] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Accepted: 03/22/2016] [Indexed: 01/06/2023] Open
Abstract
A new type of low-molecular-weight gelator (LMWG), i.e. overcrowded alkene-based bis-ureas, can be switched effectively between cis and trans isomers using light as demonstrated by 1H NMR and UV-Vis spectroscopy. Gelation studies reveal that one of the synthesized trans compounds forms stable gels in aromatic hydrocarbon solvents down to a critical concentration of 0.4 mg mL-1. Transmission electron microscopy (TEM) shows that this gel consists of an entangled fibrous network. For the trans isomer of this LMWG intermolecular urea hydrogen bonding is observed in the solid state, whereas density functional theory (DFT) geometry optimization of the cis isomer indicates the possible formation of an intramolecular hydrogen bond. Irradiation of the gel triggers trans-to-cis isomerization and consequently, a gel-sol phase transition. This process can be fully reversed by altering the irradiation wavelength.
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Affiliation(s)
- Sander J Wezenberg
- Stratingh Institute for Chemistry , University of Groningen , Nijenborgh 4 , 9747 AG , Groningen , The Netherlands . ;
| | - Christelle M Croisetu
- Stratingh Institute for Chemistry , University of Groningen , Nijenborgh 4 , 9747 AG , Groningen , The Netherlands . ;
| | - Marc C A Stuart
- Stratingh Institute for Chemistry , University of Groningen , Nijenborgh 4 , 9747 AG , Groningen , The Netherlands . ;
- Groningen Biomolecular Sciences and Biotechnology Institute , University of Groningen , Nijenborgh 7 , 9747 AG , Groningen , The Netherlands
| | - Ben L Feringa
- Stratingh Institute for Chemistry , University of Groningen , Nijenborgh 4 , 9747 AG , Groningen , The Netherlands . ;
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Hiscock JR, Bustone GP, Wilson B, Belsey KE, Blackholly LR. In situ modification of nanostructure configuration through the manipulation of hydrogen bonded amphiphile self-association. SOFT MATTER 2016; 12:4221-4228. [PMID: 27052095 DOI: 10.1039/c6sm00529b] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Herein, we report the synthesis of a novel amphiphilic salt containing a number of hydrogen bond donating (HBD) and accepting (HBA) functionalities. This amphiphile has been shown to self-associate via hydrogen bond formation in a DMSO solution, confirmed through a combination of NMR, UV-Vis and dynamic light scattering and supported by X-ray diffraction studies. The combination of different HBD and HBA functionalities within the amphiphile structure gives rise to a variety of competitive, self-associative hydrogen bonding modes that result in the formation of 'frustrated' hydrogen bonded nanostructures. These nanostructures can be altered through the addition of competitive HBD arrays and/or HBA anionic guests. The addition of these competitive species modifies the type of self-associative hydrogen bonding modes present between the amphiphilic molecules, triggering the in situ formation of novel hydrogen bonded nanostructures.
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Affiliation(s)
- Jennifer R Hiscock
- School of Physical Sciences, University of Kent, Park Wood Road, Canterbury, Kent CT2 7NH, UK.
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Kennedy SR, Miquelot A, Aguilar JA, Steed JW. Trimeric cyclamers: solution aggregation and high Z′ crystals based on guest structure and basicity. Chem Commun (Camb) 2016; 52:11846-11849. [DOI: 10.1039/c6cc06054d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hydrogen bond acceptor guests trigger solution and solid state cyclamer assembly in 5-ureaidsalicylic acid with up to 12 crystallographically independent molecules in the structure.
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Affiliation(s)
- Stuart R. Kennedy
- Department of Chemistry
- Durham University
- University Science Laboratories
- Durham
- UK
| | - Adeline Miquelot
- Department of Chemistry
- Durham University
- University Science Laboratories
- Durham
- UK
| | - Juan A. Aguilar
- Department of Chemistry
- Durham University
- University Science Laboratories
- Durham
- UK
| | - Jonathan W. Steed
- Department of Chemistry
- Durham University
- University Science Laboratories
- Durham
- UK
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