201
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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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202
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Zhang J, Wang H, Li X, Song S, Song A, Hao J. Two Gelation Mechanisms of Deoxycholate with Inorganic Additives: Hydrogen Bonding and Electrostatic Interactions. J Phys Chem B 2016; 120:6812-8. [PMID: 27333164 DOI: 10.1021/acs.jpcb.6b04140] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
This work describes the gelation behaviors of a biological amphiphile, deoxycholate (DC(-)), in aqueous solution by adding inorganic salts and modulating pH. Electrostatic interaction and hydrogen bonding can separately act as the controlling interaction for the hydrogel formation. The hydrogels formed at higher pH (about 8.5) through introducing monovalent inorganic cations (Na(+)) are mainly driven by electrostatic interaction between deoxycholate species and Na(+) ions. When pH is decreased, with the formation of DCA molecules, hydrogen bonding between DC(-) and DCA come into being another leading role to construct the hydrogels, which can induce the gels within an appropriate pH region (6.7-7.3) without inorganic cations. Gels constructed through the self-assembly of deoxycholate present diverse properties according to the difference in the main driving force. Moreover, the combination of the two important interactions can significantly enhance the gelation ability.
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Affiliation(s)
- Jin Zhang
- Key Laboratory of Colloids and Interface Chemistry & Key Laboratory of Special Aggregated Materials, (Shandong University), Ministry of Education , Jinan 250100, China
| | - Haiqiao Wang
- Key Laboratory of Colloids and Interface Chemistry & Key Laboratory of Special Aggregated Materials, (Shandong University), Ministry of Education , Jinan 250100, China
| | - Xiaoyang Li
- Key Laboratory of Colloids and Interface Chemistry & Key Laboratory of Special Aggregated Materials, (Shandong University), Ministry of Education , Jinan 250100, China
| | - Shasha Song
- Key Laboratory of Colloids and Interface Chemistry & Key Laboratory of Special Aggregated Materials, (Shandong University), Ministry of Education , Jinan 250100, China
| | - Aixin Song
- Key Laboratory of Colloids and Interface Chemistry & Key Laboratory of Special Aggregated Materials, (Shandong University), Ministry of Education , Jinan 250100, China
| | - Jingcheng Hao
- Key Laboratory of Colloids and Interface Chemistry & Key Laboratory of Special Aggregated Materials, (Shandong University), Ministry of Education , Jinan 250100, China
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203
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Balamurugan R, Zhang YS, Fitriyani S, Liu JH. Click chemistry-assisted, bis-cholesteryl-appended, isosorbide-based, dual-responsive organogelators and their self-assemblies. SOFT MATTER 2016; 12:5214-5223. [PMID: 27184589 DOI: 10.1039/c6sm00447d] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A new series of symmetric, bis-cholesteryl-appended, isosorbide derivatives (BCIE, BCIC2 and BCIC4) were designed as gelators to respond to changes in their environment and were synthesized successfully. Among these derivatives, BCIE can gel a wide variety of organic solvents (23 solvents), suggesting that BCIE acts as a more versatile gelator than BCIC2 and BCIC4. The CGC of the gels varies from 1.53 mM in 1-hexanol to 23 mM in pyridine. The results of the gelation ability in different solvents revealed that changing the linking group (ester/carbamate) attached to the cholesteryl units can produce a dramatic change in the gelation behavior of the compounds. The morphology of the as-formed organogels can be regulated by changing the types of organic solvents. The results from electron microscopy studies revealed that the gelator molecule self-assembled into different aggregates, from wrinkled fibers to dense fibers, with the change of solvents. The gels of BCIE in 1-hexanol and 1-octanol exhibited strong CD (circular dichroism) signals, indicating that the gelation induced supramolecular chirality in these gel systems. Secondary forces of van der Waals and π-π stacking (from both 1,2,3-triazole and aromatic units) played important roles in the aggregation of compounds in the solvents according to FTIR and variable temperature (1)H-NMR analysis, and a mechanism for the gel formation was proposed. The gel-to-sol phase transition can be triggered by the addition of trifluoroacetic acid (TFA), and the gel state was obtained slowly (after 1 day) when neutralizing with triethyl amine (TEA), which indicated that the sol ⇄ gel phase transitions are tunable by pH, which is further supported by (1)H-NMR and SEM analysis. In addition, the gel stability of BCIE was investigated using Cu(2+), Cd(2+), Ag(2+), Fe(3+), Hg(2+), Mg(2+), Pd(2+), Al(3+) and Zn(2+), and the results showed that the gel-to-sol phase transition process could be selectively controlled by interaction with Pd(2+) and Zn(2+) because complexation with 1,2,3-triazoles destroyed the interactions between the triazoles, collapsing the gel, which was further evidenced by (1)H-NMR and SEM analysis. However, the gel stability of BCIE was enhanced by the addition of Pd(2+) and Zn(2+) in the presence of pyridine, whereas the gel collapsed in other solvents, which may be due to the chelating effect of the pyridine moiety. Another interesting feature of this gel is that when using the gelator as a stabilizer, stable water in oil (W/O) gel-emulsions were created, in which styrene can be used as the continuous phase and water as the dispersed phase with the stabilizer in the continuous phase of only 2% (w/v). Gel-emulsions were observed with any ratio of water to styrene.
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Affiliation(s)
- R Balamurugan
- Department of Chemical Engineering, National Cheng Kung University, Tainan 70101, Taiwan, Republic of China.
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204
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Majumder J, Dastidar P. An Easy Access to Organic Salt-Based Stimuli-Responsive and Multifunctional Supramolecular Hydrogels. Chemistry 2016; 22:9267-76. [DOI: 10.1002/chem.201601136] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Indexed: 12/11/2022]
Affiliation(s)
- Joydeb Majumder
- Department of Organic Chemistry; Indian Association for the Cultivation of Science; 2A & 2B Raja S. C. Mullick Road Kolkata 700032 India
| | - Parthasarathi Dastidar
- Department of Organic Chemistry; Indian Association for the Cultivation of Science; 2A & 2B Raja S. C. Mullick Road Kolkata 700032 India
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205
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Suzuki M, Uematsu H, Hanabusa K. Novel organogelators based on phytosphingosine. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.05.051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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206
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Eimura H, Umeta Y, Tokoro H, Yoshio M, Ohkoshi SI, Kato T. Self-Assembled Fibers Containing Stable Organic Radical Moieties: Alignment and Magnetic Properties in Liquid Crystals. Chemistry 2016; 22:8872-8. [DOI: 10.1002/chem.201505213] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2016] [Indexed: 12/21/2022]
Affiliation(s)
- Hiroki Eimura
- Department of Chemistry and Biotechnology; School of Engineering; The University of Tokyo, Hongo; Bunkyo-ku Tokyo 113-8656 Japan
| | - Yoshikazu Umeta
- Department of Chemistry; Graduate School of Science; The University of Tokyo; Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Hiroko Tokoro
- Department of Chemistry; Graduate School of Science; The University of Tokyo; Hongo, Bunkyo-ku Tokyo 113-0033 Japan
- Division of Materials Science Faculty of Pure and Applied Sciences; University of Tsukuba; 1-1-1 Tennodai Tsukuba 305-8577 Japan
| | - Masafumi Yoshio
- Department of Chemistry and Biotechnology; School of Engineering; The University of Tokyo, Hongo; Bunkyo-ku Tokyo 113-8656 Japan
| | - Shin-ichi Ohkoshi
- Department of Chemistry; Graduate School of Science; The University of Tokyo; Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Takashi Kato
- Department of Chemistry and Biotechnology; School of Engineering; The University of Tokyo, Hongo; Bunkyo-ku Tokyo 113-8656 Japan
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207
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Synthesis and gelation capability of Fmoc and Boc mono-substituted cyclo(L-Lys-L-Lys)s. Chem Res Chin Univ 2016. [DOI: 10.1007/s40242-016-5471-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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208
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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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209
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Chen JX, Cao LJ, Shi Y, Wang P, Chen JH. In situ supramolecular hydrogel based on hyaluronic acid and dextran derivatives as cell scaffold. J Biomed Mater Res A 2016; 104:2263-70. [PMID: 27087451 DOI: 10.1002/jbm.a.35747] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2015] [Revised: 03/21/2016] [Accepted: 04/15/2016] [Indexed: 11/07/2022]
Abstract
In this study, hyaluronic acid-β-cyclodextrin conjugate (HA-CD) and dextran-2-naphthylacetic acid conjugate (Dex-NAA) were synthesized as two gelators. The degrees of substitution (DS) of these two gelators were determined to be 15.5 and 7.4%, respectively. Taking advantages of the strong and selective host-guest interaction between β-CD and 2-NAA, the mixture of two gelators could form supramolecular hydrogel in situ. Moreover, the pore size, gelation time, swelling ratio as well as modulus of the hydrogel could be adjusted by simply varying the contents of HA-CD and Dex-NAA. NIH/3T3 cells that entrapped in hydrogel grew well as compared with that cultured in plates, indicating a favorable cytocompatibility of the hydrogel. Collectively, the results demonstrated that the HA-Dex hydrogel could potentially be applied in tissue engineering as cell scaffold. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 104A: 2263-2270, 2016.
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Affiliation(s)
- Jing-Xiao Chen
- School of Pharmaceutical Science, Jiangnan University, Wuxi, 214122, People's Republic of China
| | - Lu-Juan Cao
- Center for ADR Monitoring of Wuxi, Wuxi, 214122, People's Republic of China
| | - Yu Shi
- School of Pharmaceutical Science, Jiangnan University, Wuxi, 214122, People's Republic of China
| | - Ping Wang
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, Jiangnan University, Wuxi, 214122, People's Republic of China
| | - Jing-Hua Chen
- School of Pharmaceutical Science, Jiangnan University, Wuxi, 214122, People's Republic of China
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210
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Tian J, Xu ZY, Zhang DW, Wang H, Xie SH, Xu DW, Ren YH, Wang H, Liu Y, Li ZT. Supramolecular metal-organic frameworks that display high homogeneous and heterogeneous photocatalytic activity for H2 production. Nat Commun 2016; 7:11580. [PMID: 27161853 PMCID: PMC4866394 DOI: 10.1038/ncomms11580] [Citation(s) in RCA: 124] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Accepted: 04/08/2016] [Indexed: 12/23/2022] Open
Abstract
Self-assembly has a unique presence when it comes to creating complicated, ordered supramolecular architectures from simple components under mild conditions. Here, we describe a self-assembly strategy for the generation of the first homogeneous supramolecular metal-organic framework (SMOF-1) in water at room temperature from a hexaarmed [Ru(bpy)3]2+-based precursor and cucurbit[8]uril (CB[8]). The solution-phase periodicity of this cubic transition metal-cored supramolecular organic framework (MSOF) is confirmed by small-angle X-ray scattering and diffraction experiments, which, as supported by TEM imaging, is commensurate with the periodicity in the solid state. We further demonstrate that SMOF-1 adsorbs anionic Wells−Dawson-type polyoxometalates (WD-POMs) in a one-cage-one-guest manner to give WD-POM@SMOF-1 hybrid assemblies. Upon visible-light (500 nm) irradiation, such hybrids enable fast multi-electron injection from photosensitive [Ru(bpy)3]2+ units to redox-active WD-POM units, leading to efficient hydrogen production in aqueous media and in organic media. The demonstrated strategy opens the door for the development of new classes of liquid-phase and solid-phase ordered porous materials. Self-assembly is robust in creating advanced, homogeneous architectures under mild conditions. Here, the authors describe the generation of the first 3D metal-cored supramolecular organic framework using this strategy and illustrate its capacity in catalysing visible light-induced H2 production.
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Affiliation(s)
- Jia Tian
- Department of Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Fudan University, Shanghai 200433, China
| | - Zi-Yue Xu
- Department of Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Fudan University, Shanghai 200433, China
| | - Dan-Wei Zhang
- Department of Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Fudan University, Shanghai 200433, China
| | - Hui Wang
- Department of Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Fudan University, Shanghai 200433, China
| | - Song-Hai Xie
- Department of Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Fudan University, Shanghai 200433, China
| | - Da-Wen Xu
- Department of Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Fudan University, Shanghai 200433, China
| | - Yuan-Hang Ren
- Department of Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Fudan University, Shanghai 200433, China
| | - Hao Wang
- Department of Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Fudan University, Shanghai 200433, China
| | - Yi Liu
- The Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - Zhan-Ting Li
- Department of Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Fudan University, Shanghai 200433, China
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211
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Zhao X, Yuan L, Zhang ZQ, Wang YS, Yu Q, Li J. Synthetic Methodology for the Fabrication of Porous Porphyrin Materials with Metal–Organic–Polymer Aerogels. Inorg Chem 2016; 55:5287-96. [DOI: 10.1021/acs.inorgchem.6b00274] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Xin Zhao
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi’an, Shaanxi 710069, China
| | - Lin Yuan
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi’an, Shaanxi 710069, China
- Xi’an Tieyi Binhe School, Xi’an, Shaanxi 710038, China
| | - Zeng-qi Zhang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi’an, Shaanxi 710069, China
| | - Yong-song Wang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi’an, Shaanxi 710069, China
| | - Qiong Yu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi’an, Shaanxi 710069, China
| | - Jun Li
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi’an, Shaanxi 710069, China
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212
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Peters GM, Davis JT. Supramolecular gels made from nucleobase, nucleoside and nucleotide analogs. Chem Soc Rev 2016; 45:3188-206. [PMID: 27146863 DOI: 10.1039/c6cs00183a] [Citation(s) in RCA: 180] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Supramolecular or molecular gels are attractive for various applications, including diagnostics, tissue scaffolding and targeted drug release. Gelators derived from natural products are of particular interest for biomedical purposes, as they are generally biocompatible and stimuli-responsive. The building blocks of nucleic acids (i.e. nucleobases, nucleosides, and nucleotides) are desirable candidates for supramolecular gelation as they readily engage in reversible, noncovalent interactions. In this review, we describe a number of organo- and hydrogels formed through the assembly of nucleosides, nucleotides, and their derivatives. While natural nucleosides and nucleotides generally require derivatization to induce gelation, guanosine and its corresponding nucleotides are well known gelators. This unique gelating ability is due to propensity of the guanine nucleobase to self-associate into stable higher-order assemblies, such as G-ribbons, G4-quartets, and G-quadruplexes.
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Affiliation(s)
- Gretchen Marie Peters
- Department of Chemistry, The University of Texas at Austin, 105 E. 24th Street, Stop A5300, Austin, Texas 78712-1224, USA.
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213
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Kuosmanen R, Puttreddy R, Willman RM, Äijäläinen I, Galandáková A, Ulrichová J, Salo H, Rissanen K, Sievänen E. Biocompatible hydrogelators based on bile acid ethyl amides. Steroids 2016; 108:7-16. [PMID: 26905616 DOI: 10.1016/j.steroids.2016.02.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Revised: 02/15/2016] [Accepted: 02/18/2016] [Indexed: 12/12/2022]
Abstract
Four novel bile acid ethyl amides were synthetized using a well-known method. All the four compounds were characterized by IR, SEM, and X-ray crystal analyses. In addition, the cytotoxicity of the compounds was tested. Two of the prepared compounds formed organogels. Lithocholic acid derivative 1 formed hydrogels as 1% and 2% (w/v) in four different aqueous solutions. This is very intriguing regarding possible uses in biomedicine.
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Affiliation(s)
- Riikka Kuosmanen
- University of Jyvaskyla, Department of Chemistry, P.O. Box 35, FI-40014 University of Jyvaskyla, Finland
| | - Rakesh Puttreddy
- University of Jyvaskyla, Department of Chemistry, P.O. Box 35, FI-40014 University of Jyvaskyla, Finland
| | - Roosa-Maria Willman
- University of Jyvaskyla, Department of Chemistry, P.O. Box 35, FI-40014 University of Jyvaskyla, Finland
| | - Ilkka Äijäläinen
- University of Jyvaskyla, Department of Chemistry, P.O. Box 35, FI-40014 University of Jyvaskyla, Finland
| | - Adéla Galandáková
- Palacký University in Olomouc, Department of Medical Chemistry and Biochemistry, Hněvotínská 3, CZ-775 15 Olomouc, Czech Republic
| | - Jitka Ulrichová
- Palacký University in Olomouc, Department of Medical Chemistry and Biochemistry, Hněvotínská 3, CZ-775 15 Olomouc, Czech Republic
| | - Hannu Salo
- University of Jyvaskyla, Department of Chemistry, P.O. Box 35, FI-40014 University of Jyvaskyla, Finland
| | - Kari Rissanen
- University of Jyvaskyla, Department of Chemistry, P.O. Box 35, FI-40014 University of Jyvaskyla, Finland
| | - Elina Sievänen
- University of Jyvaskyla, Department of Chemistry, P.O. Box 35, FI-40014 University of Jyvaskyla, Finland.
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214
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Daemi H, Rajabi-Zeleti S, Sardon H, Barikani M, Khademhosseini A, Baharvand H. A robust super-tough biodegradable elastomer engineered by supramolecular ionic interactions. Biomaterials 2016; 84:54-63. [DOI: 10.1016/j.biomaterials.2016.01.025] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Revised: 01/07/2016] [Accepted: 01/07/2016] [Indexed: 02/04/2023]
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215
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Biswas A, Dubey M, Mukhopadhyay S, Kumar A, Pandey DS. Anion triggered metallogels: demetalation and crystal growth inside the gel matrix and improvement in viscoelastic properties using Au-NPs. SOFT MATTER 2016; 12:2997-3003. [PMID: 26947708 DOI: 10.1039/c5sm02464a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Progelator complex Zn-TRPA-2 undergoes Cl(-) triggered gelation to afford ZTP2G, while Zn-TRPA-2 capped Au-NPs under similar conditions gave another gel GNZTP2G which also represents a rare nano-composite metallogel. When Zn-TRPA-2 was triggered by Cl(-) and NO3(-) simultaneously, crystals of demetalated species NA-TRPA-2 grew inside the ZTP2G matrix. Interestingly, GNZTP2G exhibits superior viscoelastic properties over ZTP2G.
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Affiliation(s)
- Arnab Biswas
- Department of Chemistry, Faculty of Science, Banaras Hindu University, Varanasi-221005, U.P, India.
| | - Mrigendra Dubey
- Department of Chemistry, Faculty of Science, Banaras Hindu University, Varanasi-221005, U.P, India.
| | - Sujay Mukhopadhyay
- Department of Chemistry, Faculty of Science, Banaras Hindu University, Varanasi-221005, U.P, India.
| | - Ashish Kumar
- Department of Chemistry, Faculty of Science, Banaras Hindu University, Varanasi-221005, U.P, India.
| | - Daya Shankar Pandey
- Department of Chemistry, Faculty of Science, Banaras Hindu University, Varanasi-221005, U.P, India.
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216
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Liu Z, Sun J, Zhou Y, Zhang Y, Wu Y, Nalluri SKM, Wang Y, Samanta A, Mirkin CA, Schatz GC, Stoddart JF. Supramolecular Gelation of Rigid Triangular Macrocycles through Rings of Multiple C–H···O Interactions Acting Cooperatively. J Org Chem 2016; 81:2581-8. [DOI: 10.1021/acs.joc.6b00281] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zhichang Liu
- Department
of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
| | - Junling Sun
- Department
of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
| | - Yu Zhou
- Department
of Materials Science and Engineering, Northwestern University, 2220 Campus
Drive, Evanston, Illinois 60208-3113, United States
| | - Yu Zhang
- Department
of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
- Center
for Bio-inspired Energy Science, Northwestern University, 2145 Sheridan
Road, Evanston, Illinois 60208-3113, United States
| | - Yilei Wu
- Department
of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
| | - Siva Krishna Mohan Nalluri
- Department
of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
| | - Yuping Wang
- Department
of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
| | - Avik Samanta
- Department
of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
| | - Chad A. Mirkin
- Department
of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
- Department
of Materials Science and Engineering, Northwestern University, 2220 Campus
Drive, Evanston, Illinois 60208-3113, United States
| | - George C. Schatz
- Department
of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
- Center
for Bio-inspired Energy Science, Northwestern University, 2145 Sheridan
Road, Evanston, Illinois 60208-3113, United States
| | - J. Fraser Stoddart
- Department
of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
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217
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Yamanaka M. Development ofC3-Symmetric Tris-Urea Low-Molecular-Weight Gelators. CHEM REC 2016; 16:768-82. [DOI: 10.1002/tcr.201500282] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2015] [Indexed: 01/12/2023]
Affiliation(s)
- Masamichi Yamanaka
- Department of Chemistry, Faculty of Science; Shizuoka University; 836 Ohya, Suruga-ku Shizuoka 422-8529 Japan
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218
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Ressouche E, Pensec S, Isare B, Ducouret G, Bouteiller L. Rational Design of Urea-Based Two-Component Organogelators. ACS Macro Lett 2016; 5:244-247. [PMID: 35614686 DOI: 10.1021/acsmacrolett.5b00931] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Low molecular weight gelators are versatile and responsive gel-forming systems. However, it is still a challenge to develop a new organogelator for a precise application, i.e., to gel a predetermined liquid. We propose a simple concept of a two-component gelling system that can be rationally adapted to gel liquids ranging in polarity from silicone oil to acetonitrile.
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Affiliation(s)
- Emilie Ressouche
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Institut Parisien de Chimie Moléculaire, Equipe Chimie
des Polymères, 4 Place Jussieu, F-75005 Paris, France
| | - Sandrine Pensec
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Institut Parisien de Chimie Moléculaire, Equipe Chimie
des Polymères, 4 Place Jussieu, F-75005 Paris, France
| | - Benjamin Isare
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Institut Parisien de Chimie Moléculaire, Equipe Chimie
des Polymères, 4 Place Jussieu, F-75005 Paris, France
| | - Guylaine Ducouret
- Sciences
et Ingénierie de la Matière Molle, CNRS UMR 7615, École Supérieure de Physique et de Chimie Industrielles de la Ville de Paris (ESPCI), ParisTech, PSL Research University, 10 rue Vauquelin, F-75231 Paris, France
- SIMM,
UPMC Univ Paris 06, Sorbonne Universités, 10 rue Vauquelin, F-75231 Paris, France
| | - Laurent Bouteiller
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Institut Parisien de Chimie Moléculaire, Equipe Chimie
des Polymères, 4 Place Jussieu, F-75005 Paris, France
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219
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Portada T, Molčanov K, Šijaković Vujičić N, Žinić M. Biphenyl Bis(amino alcohol) Oxalamide Gelators: Complex Gelation Involving Coupled Equilibria, Central-to-Axial Chirality Transfer, Diastereoisomer Interconversion, and Self-Sorting. European J Org Chem 2016. [DOI: 10.1002/ejoc.201501261] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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220
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Abstract
This paper highlights recent developments in the design and construction of functional materials such as supramolecular hydrogels and ion channels using a guanine motif as a self-assembling building block.
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Affiliation(s)
- Jyotirmayee Dash
- Department of Organic Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata-700032, India.
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221
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Luisier N, Scopelliti R, Severin K. Supramolecular gels based on boronate esters and imidazolyl donors. SOFT MATTER 2016; 12:588-593. [PMID: 26506208 DOI: 10.1039/c5sm02298c] [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
Dative boron-nitrogen bonds can be used for the controlled assembly of boronate esters and N-donor ligands. So far, most investigations have focused on crystalline assemblies. In contrast, there are very few reports about soft materials based on dative B-N bonds. Here, we describe the formation of gels by aggregation of diboronate esters and ditopic bisimidazolyl donor ligands. Analyses of low molecular weight model compounds by NMR spectroscopy, isothermal titration calorimetry, and X-ray crystallography reveal that imidazolyl ligands form particularly strong dative bonds with boronate esters. The strong interaction allows gel formation in competitive polar solvents such as THF and acetone. In less polar solvents, very low critical gel concentrations of down to 0.02 wt% are observed. By using a diboronate ester linked by an azobenzene group, it is possible to form a photoresponsive gel.
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Affiliation(s)
- N Luisier
- Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland.
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222
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Lee A, Kim HK, Thompson DH. A Facile Method for the Preparation of Unsymmetrical Ureas Utilizing Zirconium(IV) Chloride. B KOREAN CHEM SOC 2016. [DOI: 10.1002/bkcs.10646] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Anna Lee
- Department of Chemistry; Myongji University; Yongin 449-728 Republic of Korea
| | - Hee-Kwon Kim
- Department of Nuclear Medicine; Molecular Imaging and Therapeutic Medicine Research Center, Biomedical Research Institute, Chonbuk National University Medical School and Hospital; Jeonju 561-712 Republic of Korea
- Department of Chemistry; Purdue University; West Lafayette IN 47907 USA
| | - David H. Thompson
- Department of Chemistry; Purdue University; West Lafayette IN 47907 USA
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223
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Jeong BH, Kim HK, Thompson DH. A Facile and Efficient Method for the Formation of Unsymmetrical Ureas Using DABAL-Me3. Aust J Chem 2016. [DOI: 10.1071/ch15675] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
A practical synthetic method for the formation of unsymmetrical-substituted ureas is described. The synthesis of the unsymmetrical ureas was readily performed from 2,2,2-trichloroethyl carbamate compounds by treatment of amines with bis(trimethylaluminum)-1,4-diazabicyclo[2.2.2]octane (DABAL-Me3). Using this reaction protocol, various trisubstituted and tetrasubstituted ureas were synthesized in high yields. This study offers a promising approach for the facile synthesis of a variety of unsymmetrical ureas from 2,2,2-trichloroethyl carbamates.
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224
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Srivastava BK, Manheri MK. Aryl-triazolyl peptides for efficient phase selective gelation and easy removal of dyes from water. RSC Adv 2016. [DOI: 10.1039/c6ra01282e] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Fine-tuning the gelation ability of aryl triazolyl peptide 1 by C-terminal modification led to the identification of 2 with the remarkable ability to form highly transparent gels in a wide range of solvents including oils.
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225
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Fabrication of palladium nanoparticles as effective catalysts by using supramolecular gels. CHINESE CHEM LETT 2016. [DOI: 10.1016/j.cclet.2015.09.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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226
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Richards JE, Philp D. A reactive nitrone-based organogel that self-assembles from its constituents in chloroform. Chem Commun (Camb) 2016; 52:4995-8. [DOI: 10.1039/c6cc01259k] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A dynamically-assembled nitrone-based organogel can be targeted for degradation specifically using a recognition-mediated reaction.
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Affiliation(s)
| | - Douglas Philp
- School of Chemistry and EaStCHEM
- University of St Andrews
- UK
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227
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Huang A, Ou C, Cai Y, Wang Z, Li H, Yang Z, Chen M. In situ enzymatic formation of supramolecular nanofibers for efficiently killing cancer cells. RSC Adv 2016. [DOI: 10.1039/c6ra01676f] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Precursors were more toxic to cancer cells than their corresponding gelators.
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Affiliation(s)
- Anqing Huang
- 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
| | - Yanbin Cai
- State Key Laboratory of Medicinal Chemical Biology
- Key Laboratory of Bioactive Materials
- Ministry of Education
- College of Life Sciences
- Nankai University
| | - Zhongyan Wang
- State Key Laboratory of Medicinal Chemical Biology
- Key Laboratory of Bioactive Materials
- Ministry of Education
- College of Life Sciences
- Nankai University
| | - Hekai Li
- Department of Cardiology
- Zhujiang Hospital of Southern Medical University
- Guangzhou 510280
- P. R. China
| | - Zhimou Yang
- State Key Laboratory of Medicinal Chemical Biology
- Key Laboratory of Bioactive Materials
- Ministry of Education
- College of Life Sciences
- Nankai University
| | - Minsheng Chen
- Department of Cardiology
- Zhujiang Hospital of Southern Medical University
- Guangzhou 510280
- P. R. China
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228
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Zhou J, Yang J, Zhang Z, Yu G. A cationic water-soluble biphen[3]arene: synthesis, host–guest complexation and fabrication of a supra-amphiphile. RSC Adv 2016. [DOI: 10.1039/c6ra18691b] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The first cationic water-soluble biphen[3]arene was synthesized, which was used to change the aggregation of the amphiphilic guest in water.
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Affiliation(s)
- Jiong Zhou
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Jie Yang
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Zhihua Zhang
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Guocan Yu
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- P. R. China
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229
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Cherukuvada S, Kaur R, Guru Row TN. Co-crystallization and small molecule crystal form diversity: from pharmaceutical to materials applications. CrystEngComm 2016. [DOI: 10.1039/c6ce01835a] [Citation(s) in RCA: 113] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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230
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Angulo-Pachón CA, Miravet JF. Sucrose-fueled, energy dissipative, transient formation of molecular hydrogels mediated by yeast activity. Chem Commun (Camb) 2016; 52:5398-401. [DOI: 10.1039/c6cc01183g] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
We report on new molecular hydrogels whose formation/disassembly is regulated by the presence of sucrose as fuel and CO2 release as a dissipative process.
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Affiliation(s)
| | - Juan F. Miravet
- Departament de Química Inorgánica i Orgànica
- Universitat Jaume I
- 12071 Castelló
- Spain
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231
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Yao H, Wu HP, Chang J, Lin Q, Wei TB, Zhang YM. A carboxylic acid functionalized benzimidazole-based supramolecular gel with multi-stimuli responsive properties. NEW J CHEM 2016. [DOI: 10.1039/c5nj03422a] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
We fabricated an organogel C11-OG and a novel metallogel Pb-MG, both of which exhibit strong blue AIEE in gel states.
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Affiliation(s)
- Hong Yao
- Key Laboratory of Eco-Environment-Related Polymer Materials
- Ministry of Education of China
- Key Laboratory of Polymer Materials of Gansu Province
- College of Chemistry and Chemical Engineering
- Northwest Normal University
| | - Hong-Ping Wu
- Key Laboratory of Eco-Environment-Related Polymer Materials
- Ministry of Education of China
- Key Laboratory of Polymer Materials of Gansu Province
- College of Chemistry and Chemical Engineering
- Northwest Normal University
| | - Jing Chang
- Key Laboratory of Eco-Environment-Related Polymer Materials
- Ministry of Education of China
- Key Laboratory of Polymer Materials of Gansu Province
- College of Chemistry and Chemical Engineering
- Northwest Normal University
| | - Qi Lin
- Key Laboratory of Eco-Environment-Related Polymer Materials
- Ministry of Education of China
- Key Laboratory of Polymer Materials of Gansu Province
- College of Chemistry and Chemical Engineering
- Northwest Normal University
| | - Tai-Bao Wei
- Key Laboratory of Eco-Environment-Related Polymer Materials
- Ministry of Education of China
- Key Laboratory of Polymer Materials of Gansu Province
- College of Chemistry and Chemical Engineering
- Northwest Normal University
| | - You-Ming Zhang
- Key Laboratory of Eco-Environment-Related Polymer Materials
- Ministry of Education of China
- Key Laboratory of Polymer Materials of Gansu Province
- College of Chemistry and Chemical Engineering
- Northwest Normal University
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232
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Yang H, Zhang S, Liu K, Fang Y. Calix[4]arene-based low molecular mass gelators to form gels in organoalkoxysilanes. RSC Adv 2016. [DOI: 10.1039/c6ra22731g] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Organoalkoxysilanes-based molecular gels for melting-free deposition molding, potential smart materials for 3D printing.
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Affiliation(s)
- Hui Yang
- Key Laboratory of Applied Surface and Colloid Chemistry
- Ministry of Education
- Shaanxi Normal University
- Xi'an 710119
- P. R. China
| | - Shaofei Zhang
- Key Laboratory of Applied Surface and Colloid Chemistry
- Ministry of Education
- Shaanxi Normal University
- Xi'an 710119
- P. R. China
| | - Kaiqiang Liu
- Key Laboratory of Applied Surface and Colloid Chemistry
- Ministry of Education
- Shaanxi Normal University
- Xi'an 710119
- P. R. China
| | - Yu Fang
- Key Laboratory of Applied Surface and Colloid Chemistry
- Ministry of Education
- Shaanxi Normal University
- Xi'an 710119
- P. R. China
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233
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Mehdi H, Pang H, Gong W, Dhinakaran MK, Wajahat A, Kuang X, Ning G. A novel smart supramolecular organic gelator exhibiting dual-channel responsive sensing behaviours towards fluoride ion via gel–gel states. Org Biomol Chem 2016; 14:5956-64. [DOI: 10.1039/c6ob00600k] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A smart organic gelator G-16 showed robust gelation as organogel OG and metallogel OG-Zn. Both OG and OG-Zn exhibited different sensing mode towards F−. OG-Zn displayed unique selectivity for F− and formed OG-Zn-F gel while OG selectively formed OG-F gel via AIE.
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Affiliation(s)
- Hassan Mehdi
- State Key Laboratory of Fine Chemicals
- School of Chemical Engineering
- Dalian University of Technology
- Dalian 610023
- PR. China
| | - Hongchang Pang
- State Key Laboratory of Fine Chemicals
- School of Chemical Engineering
- Dalian University of Technology
- Dalian 610023
- PR. China
| | - Weitao Gong
- State Key Laboratory of Fine Chemicals
- School of Chemical Engineering
- Dalian University of Technology
- Dalian 610023
- PR. China
| | | | - Ali Wajahat
- State Key Laboratory of Fine Chemicals
- School of Chemical Engineering
- Dalian University of Technology
- Dalian 610023
- PR. China
| | - Xiaojun Kuang
- State Key Laboratory of Fine Chemicals
- School of Chemical Engineering
- Dalian University of Technology
- Dalian 610023
- PR. China
| | - Guiling Ning
- State Key Laboratory of Fine Chemicals
- School of Chemical Engineering
- Dalian University of Technology
- Dalian 610023
- PR. China
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234
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Kaufmann L, Kennedy SR, Jones CD, Steed JW. Cavity-containing supramolecular gels as a crystallization tool for hydrophobic pharmaceuticals. Chem Commun (Camb) 2016; 52:10113-6. [DOI: 10.1039/c6cc04037c] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We present two approaches to low-molecular-weight supramolecular gels bearing hydrophobic cavities based on calixarene-containing building blocks.
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235
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Kesava Raju CS, Pramanik B, Kar T, Rao PVC, Choudary NV, Ravishankar R. Low molecular weight gels: potential in remediation of crude oil spillage and recovery. RSC Adv 2016. [DOI: 10.1039/c6ra10462b] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A molecular gelator which has strong gelation ability for different crude oils (light to heavy crudes), and a wide range of refinery products is reported for the first time for its potential application in oil spillage/recovery.
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Affiliation(s)
| | | | - Tanmoy Kar
- Hindustan Petroleum Green R&D Center (HPGRDC)
- Bangalore
- India
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236
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Piccinno M, Angulo-Pachón CA, Ballester P, Escuder B, Cort AD. Rational design of a supramolecular gel based on a Zn(ii)–salophen bis-dipeptide derivative. RSC Adv 2016. [DOI: 10.1039/c6ra12731b] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
We report the rational design and synthesis of a supramolecular gelator based on a Zn(ii)–salophen derivative functionalized with l-valine residues.
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Affiliation(s)
- Martina Piccinno
- Dipartimento di Chimica and IMC-CNR
- Universitá“La Sapienza”
- 00185 Rome
- Italy
- Institute of Chemical Research of Catalonia (ICIQ)
| | | | - Pablo Ballester
- Institute of Chemical Research of Catalonia (ICIQ)
- The Barcelona Institute of Science and Technology
- 43007 Tarragona
- Spain
- Catalan Institution of Research and Advanced Studies (ICREA)
| | - Beatriu Escuder
- Departament de Química Inorgànica i Orgànica
- Universitat Jaume I
- 12071 Castelló
- Spain
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237
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Ramin MA, Baillet J, Benizri S, Latxague L, Barthélémy P. Uracile based glycosyl-nucleoside-lipids as low molecular weight organogelators. NEW J CHEM 2016. [DOI: 10.1039/c6nj02675c] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A new low molecular weight alcogel based on glycosyl-nucleoside-lipids is reported. This material features high elastic moduli and thixotropic properties.
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Affiliation(s)
| | - Julie Baillet
- Univ. Bordeaux
- INSERM
- U1212
- CNRS UMR 5320
- ARNA Laboratory
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238
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Wang JR, Bao J, Fan X, Dai W, Mei X. pH-Switchable vitamin B9gels for stoichiometry-controlled spherical co-crystallization. Chem Commun (Camb) 2016; 52:13452-13455. [DOI: 10.1039/c6cc07701c] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Recyclable VB9gels can be applied to control co-crystal stoichiometry, resulting in isolation of four stoichiometric vitamin C co-crystals.
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Affiliation(s)
- Jian-Rong Wang
- Pharmaceutical Analytical & Solid-State Chemistry Research Center
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
- China
| | - Junjie Bao
- Pharmaceutical Analytical & Solid-State Chemistry Research Center
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
- China
| | - Xiaowu Fan
- Pharmaceutical Analytical & Solid-State Chemistry Research Center
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
- China
| | - Wenjuan Dai
- Pharmaceutical Analytical & Solid-State Chemistry Research Center
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
- China
| | - Xuefeng Mei
- Pharmaceutical Analytical & Solid-State Chemistry Research Center
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
- China
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239
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Ramos J, Arufe S, O'Flaherty R, Rooney D, Moreira R, Velasco-Torrijos T. Selective aliphatic/aromatic organogelation controlled by the side chain of serine amphiphiles. RSC Adv 2016. [DOI: 10.1039/c6ra21391j] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Structural modifications in the side chain of N-Fmoc-l-serine amphiphiles induce the selective gelation of either aliphatic or aromatic hydrocarbon solvents.
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Affiliation(s)
- Jessica Ramos
- Department of Chemistry
- Maynooth University
- Maynooth
- Ireland
| | - Santiago Arufe
- Department of Chemical Engineering
- Universidade de Santiago de Compostela
- Santiago de Compostela
- Spain
| | | | - Denise Rooney
- Department of Chemistry
- Maynooth University
- Maynooth
- Ireland
| | - Ramon Moreira
- Department of Chemical Engineering
- Universidade de Santiago de Compostela
- Santiago de Compostela
- Spain
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240
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Abstract
A G4-quartet based hydrogel formed by self-assembly of borate esters of 5′-deoxy-5′-iodoguanosine (5′-IG 2) undergoes in situ cyclization to give 5′-deoxy-N3,5′-cycloguanosine (5′-cG 3). Formation of 5′-cG 3 causes self-destruction of the gel. This intramolecular cyclization can be used to release nucleoside analogs that have been pre-incorporated into the gel network.
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Affiliation(s)
- Taylor N. Plank
- Department of Chemistry & Biochemistry
- University of Maryland
- College Park
- USA
| | - Jeffery T. Davis
- Department of Chemistry & Biochemistry
- University of Maryland
- College Park
- USA
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241
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Wang J, Wang X, Yang F, Shen H, You Y, Wu D. Effect of Topological Structures on the Self-Assembly Behavior of Supramolecular Amphiphiles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:13834-13841. [PMID: 26632872 DOI: 10.1021/acs.langmuir.5b03823] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Three types of azobenzene-based telechelic guest polymers, PEG-azo, azo-PEG-azo, and PEG-azo4, were synthesized by a facile method. Subsequently, a series supramolecular amphiphiles with three distinct topological structures (hemitelechelic, ditelechelic, and quadritelechelic) were constructed through coupling with host polymer β-cyclodextrin-poly(l-lactide) (β-CD-PLLA) by combined host-guest complexation. Research on the self-assembly behavior of these amphiphiles demonstrated that the variation in self-assembly was tuned by the synergistic interaction of hydrophilicity and the curvature of the polymer chains, and very importantly, the topological structure of amphiphiles demonstrated effective control of the self-assembly behavior.
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Affiliation(s)
- Juan Wang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics & Chemistry, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, P. R. China
| | - Xing Wang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics & Chemistry, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, P. R. China
| | - Fei Yang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics & Chemistry, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, P. R. China
| | - Hong Shen
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics & Chemistry, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, P. R. China
| | - Yezi You
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China , Hefei 230026, Anhui, P. R. China
| | - Decheng Wu
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics & Chemistry, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, P. R. China
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242
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Peters GM, Skala LP, Davis JT. A Molecular Chaperone for G4-Quartet Hydrogels. J Am Chem Soc 2015; 138:134-9. [DOI: 10.1021/jacs.5b08769] [Citation(s) in RCA: 89] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Gretchen Marie Peters
- Department of Chemistry and
Biochemistry, University of Maryland, College Park, Maryland 20742, United States
| | - Luke P. Skala
- Department of Chemistry and
Biochemistry, University of Maryland, College Park, Maryland 20742, United States
| | - Jeffery T. Davis
- Department of Chemistry and
Biochemistry, University of Maryland, College Park, Maryland 20742, United States
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243
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Marlow M, Al-Ameedee M, Smith T, Wheeler S, Stocks MJ. Linifanib--a multi-targeted receptor tyrosine kinase inhibitor and a low molecular weight gelator. Chem Commun (Camb) 2015; 51:6384-7. [PMID: 25761611 DOI: 10.1039/c5cc00454c] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this study we demonstrate that linifanib, a multi-targeted receptor tyrosine kinase inhibitor, with a key urea containing pharmacophore, self-assembles into a hydrogel in the presence of low amounts of solvent. We demonstrate the role of the urea functional group and that of fluorine substitution on the adjacent aromatic ring in promoting self-assembly. We have also shown that linifanib has superior mechanical strength to two structurally related analogues and hence increased potential for localisation at an injection site for drug delivery applications.
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Affiliation(s)
- Maria Marlow
- School of Pharmacy, University of Nottingham, University Park, Nottingham, NG7 2RD, UK.
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244
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Cornwell DJ, Daubney OJ, Smith DK. Photopatterned Multidomain Gels: Multi-Component Self-Assembled Hydrogels Based on Partially Self-Sorting 1,3:2,4-Dibenzylidene-d-sorbitol Derivatives. J Am Chem Soc 2015; 137:15486-92. [DOI: 10.1021/jacs.5b09691] [Citation(s) in RCA: 100] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Daniel J. Cornwell
- Department
of Chemistry, University of York, Heslington, York YO10
5DD, U.K
| | - Oliver J. Daubney
- Department
of Chemistry, University of York, Heslington, York YO10
5DD, U.K
| | - David K. Smith
- Department
of Chemistry, University of York, Heslington, York YO10
5DD, U.K
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245
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Hou S, Ma PX. Stimuli-responsive supramolecular hydrogels with high extensibility and fast self-healing via precoordinated mussel-inspired chemistry. CHEMISTRY OF MATERIALS : A PUBLICATION OF THE AMERICAN CHEMICAL SOCIETY 2015; 27:7627-7635. [PMID: 26834315 PMCID: PMC4729395 DOI: 10.1021/acs.chemmater.5b02839] [Citation(s) in RCA: 83] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Supramolecular hydrogels have the advantages of stimuli responsiveness and self-healing compared to covalently crosslinked hydrogels. However, the existing supramolecular hydrogels are usually poor in mechanical properties especially in extensibility. In addition, these supramolecular hydrogels need a long self-healing time and have low self-healing efficiency. In this manuscript, we report a novel strategy to develop highly extensible and fast self-healing supramolecular hydrogels by using pre-coordinated mussel-inspired catechol-Fe3+ complexes as dynamic crosslinkers. The hydrogel can be fabricated and cast into various shapes by one-step photo-crosslinking. Thus fabricated hydrogels can be stretched beyond 10 times their original lengths, and the high extensibility can completely recover within a very short time (less than 20 minutes) even after the hydrogels are entirely cut apart. Utilizing the dynamic nature of supramolecular hydrogels, we can realize different mechanical behaviors including strength, extensibility and recoverability by varying the loading conditions. In addition, the hydrogels respond to multiple stimuli including mechanical force, temperature and certain chemicals because of the dynamic catechol-Fe3+ bond.
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Affiliation(s)
- Sen Hou
- Center for Biomedical Engineering and Regenerative Medicine, Frontier Institute of Science and Technology, Xi’an Jiaotong University, Xi’an 710054, China
- Department of Biologic and Materials Sciences, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Peter X. Ma
- Center for Biomedical Engineering and Regenerative Medicine, Frontier Institute of Science and Technology, Xi’an Jiaotong University, Xi’an 710054, China
- Department of Biologic and Materials Sciences, University of Michigan, Ann Arbor, MI, 48109, USA
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
- Macromolecular Science and Engineering Center, University of Michigan, Ann Arbor, MI 48109, USA
- Department of Materials Science and Engineering, University of Michigan, Ann Arbor, MI 48109, USA
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246
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Okesola BO, Suravaram SK, Parkin A, Smith DK. Selective Extraction and In Situ Reduction of Precious Metal Salts from Model Waste To Generate Hybrid Gels with Embedded Electrocatalytic Nanoparticles. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201507684] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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247
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Okesola BO, Suravaram SK, Parkin A, Smith DK. Selective Extraction and In Situ Reduction of Precious Metal Salts from Model Waste To Generate Hybrid Gels with Embedded Electrocatalytic Nanoparticles. Angew Chem Int Ed Engl 2015; 55:183-7. [PMID: 26549625 DOI: 10.1002/anie.201507684] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2015] [Revised: 10/13/2015] [Indexed: 11/08/2022]
Abstract
A hydrogel based on 1,3:2,4-dibenzylidenesorbitol (DBS), modified with acyl hydrazides which extracts gold/silver salts from model waste is reported, with preferential uptake of precious heavy metals over other common metals. Reduction of gold/silver salts occurs spontaneously in the gel to yield metal nanoparticles located on the gel nanofibers. High nanoparticle loadings can be achieved, endowing the gel with electrochemical activity. These hybrid gels exhibit higher conductances than gels doped with carbon nanotubes, and can be used to modify electrode surfaces, enhancing electrocatalysis. We reason this simple, industrially and environmentally relevant approach to conducting materials is of considerable significance.
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Affiliation(s)
- Babatunde O Okesola
- Department of Chemistry, University of York, Heslington, York, YO10 5DD (UK)
| | - Sindhu K Suravaram
- Department of Chemistry, University of York, Heslington, York, YO10 5DD (UK)
| | - Alison Parkin
- Department of Chemistry, University of York, Heslington, York, YO10 5DD (UK)
| | - David K Smith
- Department of Chemistry, University of York, Heslington, York, YO10 5DD (UK).
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248
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Ohsedo Y. Low-molecular-weight organogelators as functional materials for oil spill remediation. POLYM ADVAN TECHNOL 2015. [DOI: 10.1002/pat.3712] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yutaka Ohsedo
- Advanced Materials Research Laboratory, Collaborative Research Division, Art, Science and Technology, Center for Cooperative Research; Kyushu University; 4-1 Kyudaishinmachi, Nishi-ku Fukuoka Japan
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249
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Datta S, Bhattacharya S. Multifarious facets of sugar-derived molecular gels: molecular features, mechanisms of self-assembly and emerging applications. Chem Soc Rev 2015; 44:5596-637. [PMID: 26023922 DOI: 10.1039/c5cs00093a] [Citation(s) in RCA: 195] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The remarkable capability of nature to design and create excellent self-assembled nano-structures, especially in the biological world, has motivated chemists to mimic such systems with synthetic molecular and supramolecular systems. The hierarchically organized self-assembly of low molecular weight gelators (LMWGs) based on non-covalent interactions has been proven to be a useful tool in the development of well-defined nanostructures. Among these, the self-assembly of sugar-derived LMWGs has received immense attention because of their propensity to furnish biocompatible, hierarchical, supramolecular architectures that are macroscopically expressed in gel formation. This review sheds light on various aspects of sugar-derived LMWGs, uncovering their mechanisms of gelation, structural analysis, and tailorable properties, and their diverse applications such as stimuli-responsiveness, sensing, self-healing, environmental problems, and nano and biomaterials synthesis.
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Affiliation(s)
- Sougata Datta
- Department of Organic Chemistry, Indian Institute of Science, Bangalore, India.
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250
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Limón D, Amirthalingam E, Rodrigues M, Halbaut L, Andrade B, Garduño-Ramírez ML, Amabilino DB, Pérez-García L, Calpena AC. Novel nanostructured supramolecular hydrogels for the topical delivery of anionic drugs. Eur J Pharm Biopharm 2015; 96:421-36. [PMID: 26409201 DOI: 10.1016/j.ejpb.2015.09.007] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2015] [Revised: 07/30/2015] [Accepted: 09/14/2015] [Indexed: 11/16/2022]
Abstract
A bis-imidazolium-based amphiphilic molecule was used to form novel supramolecular gels in ethanol-water mixtures. The proportion of solvents, the concentration of gellant and the temperature are factors that strongly influence the gelling process. The physical gels that are formed comprise entangled fibers of around 100nm in diameter, able to incorporate anionic drugs, whose morphology varies depending on the drug they incorporate. These hydrogels are soft and therefore optimum for skin application. They show good stability when compared to previously reported gels. Suitable drug release and skin permeation profiles were obtained, and, moreover, they seem to promote the retention of the drug inside the skin. Finally, effective in vivo anti-inflammatory activity was observed, especially with the indomethacin-incorporated gel, which indicates that these supramolecular hydrogels are a good option for the delivery of poor water soluble drugs for the treatment of acute inflammation or other skin diseases.
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Affiliation(s)
- David Limón
- Departament de Farmacologia i Química Terapèutica, Universitat de Barcelona, Av. Joan XXIII, s/n, 08028 Barcelona, Spain; Institut de Nanociència i Nanotecnologia IN2UB, Universitat de Barcelona, 08028 Barcelona, Spain
| | - Ezhil Amirthalingam
- Departament de Farmacologia i Química Terapèutica, Universitat de Barcelona, Av. Joan XXIII, s/n, 08028 Barcelona, Spain; Institut de Nanociència i Nanotecnologia IN2UB, Universitat de Barcelona, 08028 Barcelona, Spain
| | - Mafalda Rodrigues
- Departament de Farmacologia i Química Terapèutica, Universitat de Barcelona, Av. Joan XXIII, s/n, 08028 Barcelona, Spain; Institut de Nanociència i Nanotecnologia IN2UB, Universitat de Barcelona, 08028 Barcelona, Spain
| | - Lyda Halbaut
- Departament de Farmàcia i Tecnologia Farmacèutica, Universitat de Barcelona, Av. Joan XXI, s/n, 08028 Barcelona, Spain
| | - Berenice Andrade
- Centro de Investigaciones Químicas, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Cuernavaca, Morelos, Mexico
| | - María Luisa Garduño-Ramírez
- Centro de Investigaciones Químicas, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Cuernavaca, Morelos, Mexico
| | - David B Amabilino
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus Universitari, 08193 Bellaterra, Spain
| | - Lluïsa Pérez-García
- Departament de Farmacologia i Química Terapèutica, Universitat de Barcelona, Av. Joan XXIII, s/n, 08028 Barcelona, Spain; Institut de Nanociència i Nanotecnologia IN2UB, Universitat de Barcelona, 08028 Barcelona, Spain
| | - Ana C Calpena
- Institut de Nanociència i Nanotecnologia IN2UB, Universitat de Barcelona, 08028 Barcelona, Spain; Departament de Farmàcia i Tecnologia Farmacèutica, Universitat de Barcelona, Av. Joan XXI, s/n, 08028 Barcelona, Spain.
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