51
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Liu J, Yuan F, Ma X, Auphedeous DY, Zhao C, Liu C, Shen C, Feng C. The Cooperative Effect of Both Molecular and Supramolecular Chirality on Cell Adhesion. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201801462] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jinying Liu
- State Key Lab of Metal Matrix CompositesSchool of Materials Science and EngineeringShanghai Jiao Tong University Shanghai 200240 China
| | - Feng Yuan
- State Key Lab of Metal Matrix CompositesSchool of Materials Science and EngineeringShanghai Jiao Tong University Shanghai 200240 China
| | - Xiaoyu Ma
- State Key Lab of Metal Matrix CompositesSchool of Materials Science and EngineeringShanghai Jiao Tong University Shanghai 200240 China
| | - Dang‐i Y. Auphedeous
- State Key Lab of Metal Matrix CompositesSchool of Materials Science and EngineeringShanghai Jiao Tong University Shanghai 200240 China
| | - Changli Zhao
- State Key Lab of Metal Matrix CompositesSchool of Materials Science and EngineeringShanghai Jiao Tong University Shanghai 200240 China
| | - Chuntai Liu
- National Engineering Research Center for Advanced Polymer Processing TechnologiesZhengzhou University Zhengzhou China
| | - Changyu Shen
- National Engineering Research Center for Advanced Polymer Processing TechnologiesZhengzhou University Zhengzhou China
| | - Chuanliang Feng
- State Key Lab of Metal Matrix CompositesSchool of Materials Science and EngineeringShanghai Jiao Tong University Shanghai 200240 China
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52
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Liu J, Yuan F, Ma X, Auphedeous DIY, Zhao C, Liu C, Shen C, Feng C. The Cooperative Effect of Both Molecular and Supramolecular Chirality on Cell Adhesion. Angew Chem Int Ed Engl 2018; 57:6475-6479. [PMID: 29644777 DOI: 10.1002/anie.201801462] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2018] [Revised: 04/04/2018] [Indexed: 11/11/2022]
Abstract
Although helical nanofibrous structures have great influence on cell adhesion, the role played by chiral molecules in these structures on cells behavior has usually been ignored. The chirality of helical nanofibers is inverted by the odd-even effect of methylene units from homochiral l-phenylalanine derivative during assembly. An increase in cell adhesion on left-handed nanofibers and weak influence of cell behaviors on right-handed nanofibers are observed, even though both were derived from l-phenylalanine derivatives. Weak and negative influences on cell behavior was also observed for left- and right-handed nanofibers derived from d-phenylalanine, respectively. The effect on cell adhesion of single chiral molecules and helical nanofibers may be mutually offset.
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Affiliation(s)
- Jinying Liu
- State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Feng Yuan
- State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Xiaoyu Ma
- State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Dang-I Y Auphedeous
- State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Changli Zhao
- State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Chuntai Liu
- National Engineering Research Center for Advanced Polymer Processing Technologies, Zhengzhou University, Zhengzhou, China
| | - Changyu Shen
- National Engineering Research Center for Advanced Polymer Processing Technologies, Zhengzhou University, Zhengzhou, China
| | - Chuanliang Feng
- State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
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53
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54
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Chen A, Okafor IS, Garcia C, Wang G. Synthesis and self-assembling properties of 4,6−O-benzylidene acetal protected D-glucose and D-glucosamine β−1,2,3−triazole derivatives. Carbohydr Res 2018; 461:60-75. [DOI: 10.1016/j.carres.2018.02.011] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Revised: 02/17/2018] [Accepted: 02/17/2018] [Indexed: 12/17/2022]
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55
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Wang F, Feng CL. Metal-Ion-Mediated Supramolecular Chirality of l
-Phenylalanine Based Hydrogels. Angew Chem Int Ed Engl 2018; 57:5655-5659. [DOI: 10.1002/anie.201800251] [Citation(s) in RCA: 78] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Revised: 03/19/2018] [Indexed: 02/03/2023]
Affiliation(s)
- Fang Wang
- State Key Lab of Metal Matrix Composites; School of Materials Science and Engineering; Shanghai Jiao Tong University; Shanghai 200240 China
| | - Chuan-Liang Feng
- State Key Lab of Metal Matrix Composites; School of Materials Science and Engineering; Shanghai Jiao Tong University; Shanghai 200240 China
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56
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Wang F, Feng CL. Metal-Ion-Mediated Supramolecular Chirality of l
-Phenylalanine Based Hydrogels. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201800251] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Fang Wang
- State Key Lab of Metal Matrix Composites; School of Materials Science and Engineering; Shanghai Jiao Tong University; Shanghai 200240 China
| | - Chuan-Liang Feng
- State Key Lab of Metal Matrix Composites; School of Materials Science and Engineering; Shanghai Jiao Tong University; Shanghai 200240 China
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57
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Chirality Inversion of Assemblies of Bio-based Surfactant Triggered by Metal Ions. Chem Res Chin Univ 2018. [DOI: 10.1007/s40242-018-7409-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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58
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Harraz DM, Davis JT. A self-assembled peroxidase from 5'-GMP and heme. Chem Commun (Camb) 2018; 54:1587-1590. [PMID: 29368765 DOI: 10.1039/c7cc09900b] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Guanosine 5'-monophosphate (5'-GMP) and Fe(iii)-heme form a supramolecular catalyst with peroxidase activity. Catalysis, which depends on self-assembly of 5'-GMP into a G-quadruplex that binds hemin, can be modulated by nucleotide concentration, temperature and the identity of the nucleotide's sugar.
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Affiliation(s)
- Deiaa M Harraz
- Department of Chemistry & Biochemistry, University of Maryland College Park, MD 20742, USA.
| | - Jeffery T Davis
- Department of Chemistry & Biochemistry, University of Maryland College Park, MD 20742, USA.
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59
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Okesola BO, Smith DK. Applying low-molecular weight supramolecular gelators in an environmental setting - self-assembled gels as smart materials for pollutant removal. Chem Soc Rev 2018; 45:4226-51. [PMID: 27241027 DOI: 10.1039/c6cs00124f] [Citation(s) in RCA: 487] [Impact Index Per Article: 81.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
This review explores supramolecular gels as materials for environmental remediation. These soft materials are formed by self-assembling low-molecular-weight building blocks, which can be programmed with molecular-scale information by simple organic synthesis. The resulting gels often have nanoscale 'solid-like' networks which are sample-spanning within a 'liquid-like' solvent phase. There is intimate contact between the solvent and the gel nanostructure, which has a very high effective surface area as a result of its dimensions. As such, these materials have the ability to bring a solid-like phase into contact with liquids in an environmental setting. Such materials can therefore remediate unwanted pollutants from the environment including: immobilisation of oil spills, removal of dyes, extraction of heavy metals or toxic anions, and the detection or removal of chemical weapons. Controlling the interactions between the gel nanofibres and pollutants can lead to selective uptake and extraction. Furthermore, if suitably designed, such materials can be recyclable and environmentally benign, while the responsive and tunable nature of the self-assembled network offers significant advantages over other materials solutions to problems caused by pollution in an environmental setting.
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Affiliation(s)
- Babatunde O Okesola
- 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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60
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Jones CD, Steed JW. Gels with sense: supramolecular materials that respond to heat, light and sound. Chem Soc Rev 2018; 45:6546-6596. [PMID: 27711667 DOI: 10.1039/c6cs00435k] [Citation(s) in RCA: 310] [Impact Index Per Article: 51.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Advances in the field of supramolecular chemistry have made it possible, in many situations, to reliably engineer soft materials to address a specific technological problem. Particularly exciting are "smart" gels that undergo reversible physical changes on exposure to remote, non-invasive environmental stimuli. This review explores the development of gels which are transformed by heat, light and ultrasound, as well as other mechanical inputs, applied voltages and magnetic fields. Focusing on small-molecule gelators, but with reference to organic polymers and metal-organic systems, we examine how the structures of gelator assemblies influence the physical and chemical mechanisms leading to thermo-, photo- and mechano-switchable behaviour. In addition, we evaluate how the unique and versatile properties of smart materials may be exploited in a wide range of applications, including catalysis, crystal growth, ion sensing, drug delivery, data storage and biomaterial replacement.
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Affiliation(s)
| | - Jonathan W Steed
- Department of Chemistry, Durham University, South Road, DH1 3LE, UK.
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61
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Wang F, Feng CL. Stoichiometry-Controlled Inversion of Supramolecular Chirality in Nanostructures Co-assembled with Bipyridines. Chemistry 2018; 24:1509-1513. [DOI: 10.1002/chem.201704431] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Indexed: 12/23/2022]
Affiliation(s)
- Fang Wang
- State Key Laboratory of Metal Matrix Composites; School of Materials Science and Engineering; Shanghai Jiao Tong University; Shanghai 200240 P. R. China
| | - Chuan-Liang Feng
- State Key Laboratory of Metal Matrix Composites; School of Materials Science and Engineering; Shanghai Jiao Tong University; Shanghai 200240 P. R. China
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62
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Reja A, Biswas A, Yadav J, Dev D, Das AK. Induction of Supramolecular Helical Handedness in a Chemical Reaction Directed Self-Healable Soft Material. ChemistrySelect 2017. [DOI: 10.1002/slct.201702212] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Antara Reja
- Department of Chemistry; Indian Institute of Technology Indore; Khandwa Road Indore 453552 India
| | - Ankan Biswas
- Department of Chemistry; Indian Institute of Technology Indore; Khandwa Road Indore 453552 India
| | - Jonu Yadav
- Department of Chemistry; Indian Institute of Technology Indore; Khandwa Road Indore 453552 India
| | - Dharm Dev
- Department of Chemistry; Indian Institute of Technology Indore; Khandwa Road Indore 453552 India
| | - Apurba K. Das
- Department of Chemistry; Indian Institute of Technology Indore; Khandwa Road Indore 453552 India
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63
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Chatterjee S, Maitra U. In situ formation of luminescent CdSe QDs in a metallohydrogel: a strategy towards synthesis, isolation, storage and re-dispersion of the QDs. NANOSCALE 2017; 9:13820-13827. [PMID: 28891578 DOI: 10.1039/c7nr03758a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A one step, in situ, room temperature synthesis of yellow luminescent CdSe QDs was achieved in a metallohydrogel derived from a facially amphiphilic bile salt, resulting in a QD-gel hybrid. An ordered self-assembly and homogeneous distribution of the CdSe QDs in the hydrogel network was observed from optical and electron micrographs. The different excited state behavior of the CdSe QDs in the hybrid was revealed for the first time using time resolved spectroscopy. We also describe the successful isolation of the photoluminescent CdSe QDs from the gel followed by their re-dispersion in an organic solvent using suitable capping ligands.
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Affiliation(s)
- Sayantan Chatterjee
- Department of Organic Chemistry, Indian Institute of Science, Bangalore, 560012 Karnataka, India.
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64
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Takeshita J, Hasegawa Y, Yanai K, Yamamoto A, Ishii A, Hasegawa M, Yamanaka M. Organic Dye Adsorption by Amphiphilic Tris-Urea Supramolecular Hydrogel. Chem Asian J 2017; 12:2029-2032. [DOI: 10.1002/asia.201700708] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Revised: 05/25/2017] [Indexed: 01/11/2023]
Affiliation(s)
- Juri Takeshita
- Department of Chemistry; Faculty of Science; Shizuoka University; 836 Ohya, Suruga-ku Shizuoka 422-8529 Japan
| | - Yuki Hasegawa
- College of Science and Engineering; Aoyama Gakuin University; 5-10-1 Fuchinobe, Chuo-ku Sagamihara Kanagawa 252-5258 Japan
| | - Kazushige Yanai
- Department of Chemistry; Faculty of Science; Shizuoka University; 836 Ohya, Suruga-ku Shizuoka 422-8529 Japan
| | - Ayumu Yamamoto
- Department of Chemistry; Faculty of Science; Shizuoka University; 836 Ohya, Suruga-ku Shizuoka 422-8529 Japan
| | - Ayumi Ishii
- College of Science and Engineering; Aoyama Gakuin University; 5-10-1 Fuchinobe, Chuo-ku Sagamihara Kanagawa 252-5258 Japan
| | - Miki Hasegawa
- College of Science and Engineering; Aoyama Gakuin University; 5-10-1 Fuchinobe, Chuo-ku Sagamihara Kanagawa 252-5258 Japan
| | - Masamichi Yamanaka
- Department of Chemistry; Faculty of Science; Shizuoka University; 836 Ohya, Suruga-ku Shizuoka 422-8529 Japan
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65
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Singh N, Escuder B. Competition versus Cooperation in Catalytic Hydrogelators for anti-Selective Mannich Reaction. Chemistry 2017; 23:9946-9951. [PMID: 28513914 DOI: 10.1002/chem.201701724] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Indexed: 01/08/2023]
Abstract
Chemical systems find similarities in different sociological and biological processes, in which the entities compete or cooperate for a favorable outcome. The structural and functional adaptations leading to emergent properties, especially in catalysis, are based on factors such as abundance of substrates, stability of the transition state, and structural/functional attributes of catalysts. Proline and acid groups appended to catalytic fibers of two self-sorting hydrogelators compete for the Mannich reaction between aniline, benzaldehyde, and cyclohexanone to give low overall selectivity (anti/syn 77:23). In a sol-gel system of the same molecules, on the other hand, the soluble acid appended molecules tend to cooperate with the fibers of proline-appended catalyst to give improved selectivity (anti/syn 95:5). The available options for the catalytic molecules are to carry out the reaction independently or in cooperation. However, these options are chosen based on the efficiency, selectivity, and mobility of catalysts as a result of their abilities to self-assemble.
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Affiliation(s)
- Nishant Singh
- Department de Química Inorgànica i Orgànica, Universitat Jaume I, Av Sos Baynat, Castellón, 12071, Spain
| | - Beatriu Escuder
- Department de Química Inorgànica i Orgànica, Universitat Jaume I, Av Sos Baynat, Castellón, 12071, Spain
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66
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Jiang J, Ouyang G, Zhang L, Liu M. Self‐Assembled Chiral Nanostructures as Scaffolds for Asymmetric Reactions. Chemistry 2017; 23:9439-9450. [DOI: 10.1002/chem.201700727] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Indexed: 11/10/2022]
Affiliation(s)
- Jian Jiang
- Key Laboratory of Nanosystem and Hierarchical FabricationCAS Center for Excellence in NanoscienceNational Center for Nanoscience and Technology No. 11 ZhongGuanCun BeiYiTiao 100190 Beijing P. R. China
| | - Guanghui Ouyang
- Key Laboratory of Colloid, Interface and Chemical ThermodynamicsInstitute of Chemistry, Chinese Academy of ScienceBeijing National Laboratory for Molecular Science (BNLMS) Zhongguancun North First Street 2 100190 Beijing P. R. China
| | - Li Zhang
- Key Laboratory of Colloid, Interface and Chemical ThermodynamicsInstitute of Chemistry, Chinese Academy of ScienceBeijing National Laboratory for Molecular Science (BNLMS) Zhongguancun North First Street 2 100190 Beijing P. R. China
| | - Minghua Liu
- Key Laboratory of Nanosystem and Hierarchical FabricationCAS Center for Excellence in NanoscienceNational Center for Nanoscience and Technology No. 11 ZhongGuanCun BeiYiTiao 100190 Beijing P. R. China
- Key Laboratory of Colloid, Interface and Chemical ThermodynamicsInstitute of Chemistry, Chinese Academy of ScienceBeijing National Laboratory for Molecular Science (BNLMS) Zhongguancun North First Street 2 100190 Beijing P. R. China
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67
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Nazari S, Keshavarz M. Amberlite-supported L-prolinate: A novel heterogeneous organocatalyst for the three-component synthesis of 4H-pyrano[2,3-c]pyrazole derivatives. RUSS J GEN CHEM+ 2017. [DOI: 10.1134/s1070363217030252] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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68
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Parveen R, Sravanthi B, Dastidar P. Rationally Developed Organic Salts of Tolfenamic Acid and Its β-Alanine Derivatives for Dual Purposes as an Anti-Inflammatory Topical Gel and Anticancer Agent. Chem Asian J 2017; 12:792-803. [PMID: 28150904 DOI: 10.1002/asia.201700049] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Revised: 01/31/2017] [Indexed: 12/15/2022]
Abstract
A new series of primary ammonium monocarboxylate (PAM) salts of a nonsteroidal anti-inflammatory drug (NSAID), namely, tolfenamic acid (TA), and its β-alanine derivatives were generated. Nearly 67 % of the salts in the series showed gelling abilities with various solvents, including water (biogenic solvent) and methyl salicylate (typically used for topical gel formulations). Gels were characterized by rheology, electron microscopy, and so forth. Structure-property correlations based on single-crystal and powder XRD data of several gelator and nongelator salts revealed intriguing insights. Studies (in vitro) on an aggressive human breast cancer cell line (MDA-MB-231) with the l-tyrosine methyl ester salt of TA (S7) revealed that the hydrogelator salt was more effective at killing cancer cells than the mother drug TA (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay); displayed better anti-inflammatory activity compared with that of TA (prostaglandin E2 assay); could be internalized within the cancer cells, as revealed by fluorescence microscopy; and inhibited effectively migration of the cancer cells. Thus, the easily accessible ambidextrous gelator salt S7 can be used for two purposes: as an anti-inflammatory topical gel and as an anticancer agent.
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Affiliation(s)
- Rumana Parveen
- Department of Organic Chemistry, Indian Association for the Cultivation of Science, 2A&2B Raja S.C. Mullick Road, Kolkata, 700032, West Bengal, India), Fax: (+91) 33-2473-2805
| | - Bommagani Sravanthi
- Department of Organic Chemistry, Indian Association for the Cultivation of Science, 2A&2B Raja S.C. Mullick Road, Kolkata, 700032, West Bengal, India), Fax: (+91) 33-2473-2805
| | - Parthasarathi Dastidar
- Department of Organic Chemistry, Indian Association for the Cultivation of Science, 2A&2B Raja S.C. Mullick Road, Kolkata, 700032, West Bengal, India), Fax: (+91) 33-2473-2805
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69
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Araújo M, Escuder B. Transient Catalytic Activity of a Triazole-based Gelator Regulated by Molecular Gel Assembly/Disassembly. ChemistrySelect 2017. [DOI: 10.1002/slct.201601816] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Marco Araújo
- Departament de Química Inorgànica i Orgànica; Universitat Jaume I; 12071 Castelló Spain
- Biomaterials for Multistage Drug and Cell Delivery; i3S- Instituto de Investigação e Inovação em Saúde; Universidade do Porto; Portugal
| | - Beatriu Escuder
- Departament de Química Inorgànica i Orgànica; Universitat Jaume I; 12071 Castelló Spain
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70
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Synthesis of a Double-Network Supramolecular Hydrogel by Having One Network Catalyse the Formation of the Second. Chemistry 2017; 23:2018-2021. [DOI: 10.1002/chem.201605771] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2016] [Indexed: 11/07/2022]
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71
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Liu G, Liu J, Feng C, Zhao Y. Unexpected right-handed helical nanostructures co-assembled from l-phenylalanine derivatives and achiral bipyridines. Chem Sci 2017; 8:1769-1775. [PMID: 29780452 PMCID: PMC5933425 DOI: 10.1039/c6sc04808k] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2016] [Accepted: 01/03/2017] [Indexed: 12/11/2022] Open
Abstract
Achiral bipyridines can co-assemble with l-phenylalanine derivatives into unexpected right-handed helical nanostructures rather than left-handed helix by utilizing intermolecular hydrogen bonding formed between pyridyl and carboxylic groups.
The construction of chiral supramolecular systems with desirable handedness is of great importance in materials science, chemistry, and biology since chiral nanostructures exhibit fascinating photophysical properties and unique biological effects. Herein, we report that achiral bipyridines can co-assemble with l-phenylalanine derivatives into unexpected right-handed helical nanostructures rather than a left-handed helix via intermolecular hydrogen bonding interactions formed between the pyridyl and carboxylic groups. This study opens up a route to develop chiral nanostructures with desirable handedness via the co-assembly of simple molecular building blocks and provides a straightforward insight into the chirality control of nanostructures in supramolecular systems.
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Affiliation(s)
- Guofeng Liu
- State Key Lab of Metal Matrix Composites , School of Materials Science and Engineering , Shanghai Jiao Tong University , 800 Dongchuan Road , Shanghai , 200240 , China . .,Division of Chemistry and Biological Chemistry , School of Physical and Mathematical Sciences , Nanyang Technological University , 21 Nanyang Link , 637371 , Singapore .
| | - Jinying Liu
- State Key Lab of Metal Matrix Composites , School of Materials Science and Engineering , Shanghai Jiao Tong University , 800 Dongchuan Road , Shanghai , 200240 , China .
| | - Chuanliang Feng
- State Key Lab of Metal Matrix Composites , School of Materials Science and Engineering , Shanghai Jiao Tong University , 800 Dongchuan Road , Shanghai , 200240 , China .
| | - Yanli Zhao
- Division of Chemistry and Biological Chemistry , School of Physical and Mathematical Sciences , Nanyang Technological University , 21 Nanyang Link , 637371 , Singapore . .,School of Materials Science and Engineering , Nanyang Technological University , 50 Nanyang Avenue , 639798 , Singapore
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72
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Atcher J, Solà J, Alfonso I. Pseudopeptidic compounds for the generation of dynamic combinatorial libraries of chemically diverse macrocycles in aqueous media. Org Biomol Chem 2017; 15:213-219. [DOI: 10.1039/c6ob02441f] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The combination of pseudopeptidic dithiol building blocks leads to the generation of highly diverse dynamic libraries of macrocycles in aqueous media.
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Affiliation(s)
- Joan Atcher
- Department of Biological Chemistry and Molecular Modelling
- IQAC-CSIC
- Barcelona
- Spain
| | - Jordi Solà
- Department of Biological Chemistry and Molecular Modelling
- IQAC-CSIC
- Barcelona
- Spain
| | - Ignacio Alfonso
- Department of Biological Chemistry and Molecular Modelling
- IQAC-CSIC
- Barcelona
- Spain
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73
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Ekiz MS, Cinar G, Khalily MA, Guler MO. Self-assembled peptide nanostructures for functional materials. NANOTECHNOLOGY 2016; 27:402002. [PMID: 27578525 DOI: 10.1088/0957-4484/27/40/402002] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Nature is an important inspirational source for scientists, and presents complex and elegant examples of adaptive and intelligent systems created by self-assembly. Significant effort has been devoted to understanding these sophisticated systems. The self-assembly process enables us to create supramolecular nanostructures with high order and complexity, and peptide-based self-assembling building blocks can serve as suitable platforms to construct nanostructures showing diverse features and applications. In this review, peptide-based supramolecular assemblies will be discussed in terms of their synthesis, design, characterization and application. Peptide nanostructures are categorized based on their chemical and physical properties and will be examined by rationalizing the influence of peptide design on the resulting morphology and the methods employed to characterize these high order complex systems. Moreover, the application of self-assembled peptide nanomaterials as functional materials in information technologies and environmental sciences will be reviewed by providing examples from recently published high-impact studies.
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Affiliation(s)
- Melis Sardan Ekiz
- Institute of Materials Science and Nanotechnology, National Nanotechnology Research Center (UNAM), Bilkent University, Ankara, 06800 Turkey
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74
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Singh N, Zhang K, Angulo-Pachón CA, Mendes E, van Esch JH, Escuder B. Tandem reactions in self-sorted catalytic molecular hydrogels. Chem Sci 2016; 7:5568-5572. [PMID: 30034697 PMCID: PMC6021788 DOI: 10.1039/c6sc01268j] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2016] [Accepted: 05/06/2016] [Indexed: 12/14/2022] Open
Abstract
By equipping mutually incompatible carboxylic acid and proline catalytic groups with different self-assembling motives we have achieved self-sorting of the resulting catalytic gelators, namely SucVal8 and ProValDoc, into different supramolecular fibers, thus preventing the acidic and basic catalytic groups from interfering with each other. The resulting spatial separation of the incompatible catalytic functions is found to be essential to achieve one-pot deacetalization-aldol tandem reactions with up to 85% efficiency and 90% enantioselectivity. On the contrary, when SucVal8 was co-assembled with a structurally similar catalytically active hydrogelator (ProVal8), self-sorting was precluded and no tandem catalysis was observed.
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Affiliation(s)
- Nishant Singh
- Departament de Química Inorgànica i Orgànica , Universitat Jaume I , E-12071 Castelló , Spain .
| | - Kai Zhang
- Department of Chemical Engineering , Delft University of Technology , Julianalaan 136 , 2628 BL Delft , The Netherlands .
| | - César A Angulo-Pachón
- Departament de Química Inorgànica i Orgànica , Universitat Jaume I , E-12071 Castelló , Spain .
| | - Eduardo Mendes
- Department of Chemical Engineering , Delft University of Technology , Julianalaan 136 , 2628 BL Delft , The Netherlands .
| | - Jan H van Esch
- Department of Chemical Engineering , Delft University of Technology , Julianalaan 136 , 2628 BL Delft , The Netherlands .
| | - Beatriu Escuder
- Departament de Química Inorgànica i Orgànica , Universitat Jaume I , E-12071 Castelló , Spain .
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75
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Wang M, Lv Y, Liu X, Qi W, Su R, He Z. Enhancing the Activity of Peptide-Based Artificial Hydrolase with Catalytic Ser/His/Asp Triad and Molecular Imprinting. ACS APPLIED MATERIALS & INTERFACES 2016; 8:14133-14141. [PMID: 27191381 DOI: 10.1021/acsami.6b04670] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
In this study, an artificial hydrolase was developed by combining the catalytic Ser/His/Asp triad with N-fluorenylmethoxycarbonyl diphenylalanine (Fmoc-FF), followed by coassembly of the peptides into nanofibers (CoA-HSD). The peptide-based nanofibers provide an ideal supramolecular framework to support the functional groups. Compared with the self-assembled catalytic nanofibers (SA-H), which contain only the catalytic histidine residue, the highest activity of CoA-HSD occurs when histidine, serine, and aspartate residues are at a ratio of 40:1:1. This indicates that the well-ordered nanofiber structure and the synergistic effects of serine and aspartate residues contribute to the enhancement in activity. Additionally, for the first time, molecular imprinting was applied to further enhance the activity of the peptide-based artificial enzyme (CoA-HSD). p-NPA was used as the molecular template to arrange the catalytic Ser/His/Asp triad residues in the proper orientation. As a result, the activity of imprinted coassembled CoA-HSD nanofibers is 7.86 times greater than that of nonimprinted CoA-HSD and 13.48 times that of SA-H.
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Affiliation(s)
- Mengfan Wang
- School of Chemical Engineering and Technology, Tianjin University , Tianjin 300072, P. R. China
- Tianjin Key Laboratory of Membrane Science and Desalination Technology , Tianjin 300072, P. R. China
| | - Yuqi Lv
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University , Tianjin 300072, P. R. China
| | - Xiaojing Liu
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University , Tianjin 300072, P. R. China
| | - Wei Qi
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University , Tianjin 300072, P. R. China
- Tianjin Key Laboratory of Membrane Science and Desalination Technology , Tianjin 300072, P. R. China
- The Co-Innovation Centre of Chemistry and Chemical Engineering of Tianjin, Tianjin 300072, P. R. China
| | - Rongxin Su
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University , Tianjin 300072, P. R. China
- Tianjin Key Laboratory of Membrane Science and Desalination Technology , Tianjin 300072, P. R. China
- The Co-Innovation Centre of Chemistry and Chemical Engineering of Tianjin, Tianjin 300072, P. R. China
| | - Zhimin He
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University , Tianjin 300072, P. R. China
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76
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Tandem Catalysis of an Aldol-'Click' Reaction System within a Molecular Hydrogel. Molecules 2016; 21:molecules21060744. [PMID: 27338313 PMCID: PMC6273958 DOI: 10.3390/molecules21060744] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Revised: 06/02/2016] [Accepted: 06/03/2016] [Indexed: 11/17/2022] Open
Abstract
A heterogeneous supramolecular catalytic system for multicomponent aldol-‘click’ reactions is reported. The copper(I) metallohydrogel functionalized with a phenyltriazole fragment was able to catalyze the multicomponent reaction between phenylacetylene, p-nitrobenzaldehyde, and an azide containing a ketone moiety, obtaining the corresponding aldol products in good yields. A possible mechanistic pathway responsible for this unexpected catalytic behavior has been proposed.
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77
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Parveen R, Dastidar P. Supramolecular Gels by Design: Towards the Development of Topical Gels for Self-Delivery Application. Chemistry 2016; 22:9257-66. [PMID: 27226393 DOI: 10.1002/chem.201600105] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Indexed: 01/18/2023]
Abstract
Following a supramolecular synthon approach, simple salt formation has been employed to gain access to a series of supramolecular gelators derived from the well-known non-steroidal anti-inflammatory drug (NSAID) ibuprofen. A well-studied gel-inducing supramolecular synthon, namely primary ammonium monocarboxylate (PAM), has been exploited to generate a series of PAM salts by reacting ibuprofen with various primary amines. Remarkably, all of the salts (S1-S7) thus synthesized proved to be good to moderate gelators of various polar and nonpolar solvents. Single-crystal and powder X-ray diffraction studies established the existence of the PAM synthons in the gel network, confirming the efficacy of the supramolecular synthon approach employed. Most importantly, the majority of the salts (S2, S3, S6, and S7) were capable of gelling methyl salicylate (MS), an important ingredient found in many commercial topical gels. In vitro experiments (MTT and PGE2 assays) revealed that all of the salts (except S3 and S7) were biocompatible (up to 0.5 mm concentration), and the most suited one, S6, displayed anti-inflammatory ability as good as that of the parent drug ibuprofen. A topical gel of S6 with methyl salicylate and menthol was found to be suitable for delivering the gelator drug in a self-delivery fashion in treating skin inflammation in mice. Histological studies, including immunohistology, were performed to further probe the role of the gelator drug S6 in treating inflammation. Cell imaging studies supported cellular uptake of the gelator drug in such biomedical application.
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Affiliation(s)
- Rumana Parveen
- Department of Organic Chemistry, Indian Association for the Cultivation of Science, 2A & 2B Raja S.C. Mullick Road, Kolkata, 700032, West Bengal, India
| | - Parthasarathi Dastidar
- Department of Organic Chemistry, Indian Association for the Cultivation of Science, 2A & 2B Raja S.C. Mullick Road, Kolkata, 700032, West Bengal, India.
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78
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Araújo M, Díaz-Oltra S, Escuder B. Triazolyl-Based Molecular Gels as Ligands for Autocatalytic ‘Click’ Reactions. Chemistry 2016; 22:8676-84. [DOI: 10.1002/chem.201600594] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Indexed: 01/26/2023]
Affiliation(s)
- Marco Araújo
- Departament de Química Inorgànica i Orgànica; Universitat Jaume I; 12071 Castelló Spain
| | - Santiago Díaz-Oltra
- Departament de Química Inorgànica i Orgànica; Universitat Jaume I; 12071 Castelló Spain
| | - Beatriu Escuder
- Departament de Química Inorgànica i Orgànica; Universitat Jaume I; 12071 Castelló Spain
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79
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Tena-Solsona M, Nanda J, Díaz-Oltra S, Chotera A, Ashkenasy G, Escuder B. Emergent Catalytic Behavior of Self-Assembled Low Molecular Weight Peptide-Based Aggregates and Hydrogels. Chemistry 2016; 22:6687-94. [PMID: 27004623 DOI: 10.1002/chem.201600344] [Citation(s) in RCA: 101] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Indexed: 01/19/2023]
Abstract
We report a series of short peptides possessing the sequence (FE)n or (EF)n and bearing l-proline at their N-terminus that self-assemble into high aspect ratio aggregates and hydrogels. We show that these aggregates are able to catalyze the aldol reaction, whereas non-aggregated analogues are catalytically inactive. We have undertaken an analysis of the results, considering the accessibility of catalytic sites, pKa value shifts, and the presence of hydrophobic pockets. We conclude that the presence of hydrophobic regions is indeed relevant for substrate solubilization, but that the active site accessibility is the key factor for the observed differences in reaction rates. The results presented here provide an example of the emergence of a new chemical property caused by self-assembly, and support the relevant role played by self-assembled peptides in prebiotic scenarios. In this sense, the reported systems can be seen as primitive aldolase I mimics, and have been successfully tested for the synthesis of simple carbohydrate precursors.
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Affiliation(s)
- Marta Tena-Solsona
- Departament de Química Inorgànica i Orgànica, Universitat Jaume I, 12071, Castelló, Spain
| | - Jayanta Nanda
- Department of Chemistry, Ben-Gurion University of the Negev, Be'er Sheva, Israel
| | - Santiago Díaz-Oltra
- Departament de Química Inorgànica i Orgànica, Universitat Jaume I, 12071, Castelló, Spain
| | - Agata Chotera
- Department of Chemistry, Ben-Gurion University of the Negev, Be'er Sheva, Israel
| | - Gonen Ashkenasy
- Department of Chemistry, Ben-Gurion University of the Negev, Be'er Sheva, Israel.
| | - Beatriu Escuder
- Departament de Química Inorgànica i Orgànica, Universitat Jaume I, 12071, Castelló, Spain.
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80
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Hooper AE, Kennedy SR, Jones CD, Steed JW. Gelation by supramolecular dimerization of mono(urea)s. Chem Commun (Camb) 2016; 52:198-201. [DOI: 10.1039/c5cc06995e] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Mono-ureido salicylic acid derivatives form hydrogen bonded dimers that mimic the gelation behaviour of covalently linked bis(urea)s.
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81
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Liu GF, Zhu LY, Ji W, Feng CL, Wei ZX. Inversion of the Supramolecular Chirality of Nanofibrous Structures through Co-Assembly with Achiral Molecules. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201510140] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Guo-Feng Liu
- State Key Lab of Metal Matrix Composites; School of Materials Science and Engineering; Shanghai Jiao Tong University; Shanghai 200240 China
| | - Ling-Yun Zhu
- Key Laboratory of Nanosystem and Hierarchical Fabrication; National Center for Nanoscience and Technology; Beijing 100190 China
| | - Wei Ji
- State Key Lab of Metal Matrix Composites; School of Materials Science and Engineering; Shanghai Jiao Tong University; Shanghai 200240 China
| | - Chuan-Liang Feng
- State Key Lab of Metal Matrix Composites; School of Materials Science and Engineering; Shanghai Jiao Tong University; Shanghai 200240 China
| | - Zhi-Xiang Wei
- Key Laboratory of Nanosystem and Hierarchical Fabrication; National Center for Nanoscience and Technology; Beijing 100190 China
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82
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Liu GF, Zhu LY, Ji W, Feng CL, Wei ZX. Inversion of the Supramolecular Chirality of Nanofibrous Structures through Co-Assembly with Achiral Molecules. Angew Chem Int Ed Engl 2015; 55:2411-5. [DOI: 10.1002/anie.201510140] [Citation(s) in RCA: 112] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2015] [Indexed: 12/20/2022]
Affiliation(s)
- Guo-Feng Liu
- State Key Lab of Metal Matrix Composites; School of Materials Science and Engineering; Shanghai Jiao Tong University; Shanghai 200240 China
| | - Ling-Yun Zhu
- Key Laboratory of Nanosystem and Hierarchical Fabrication; National Center for Nanoscience and Technology; Beijing 100190 China
| | - Wei Ji
- State Key Lab of Metal Matrix Composites; School of Materials Science and Engineering; Shanghai Jiao Tong University; Shanghai 200240 China
| | - Chuan-Liang Feng
- State Key Lab of Metal Matrix Composites; School of Materials Science and Engineering; Shanghai Jiao Tong University; Shanghai 200240 China
| | - Zhi-Xiang Wei
- Key Laboratory of Nanosystem and Hierarchical Fabrication; National Center for Nanoscience and Technology; Beijing 100190 China
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83
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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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84
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Ion-pair immobilization of l-prolinate anion onto cationic polymer support and a study of its catalytic activity for one-pot synthesis of spiroindolones. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2015. [DOI: 10.1007/s13738-015-0765-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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85
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Keshavarz M, Iravani N, Ahmadi Azqhandi MH, Nazari S. Ion-pair immobilization of l-prolinate anion onto cationic polymer support and a study of its catalytic activity as an efficient heterogeneous catalyst for the synthesis of 2-amino-4H-chromene derivatives. RESEARCH ON CHEMICAL INTERMEDIATES 2015. [DOI: 10.1007/s11164-015-2302-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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86
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Parveen R, Dastidar P. Easy Access to Supramolecular Gels of the Nonsteroidal Anti-inflammatory Drug Diflunisal: Synthesis, Characterization, and Plausible Biomedical Applications. Chem Asian J 2015; 10:2427-36. [DOI: 10.1002/asia.201500732] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Indexed: 01/16/2023]
Affiliation(s)
- Rumana Parveen
- Department of Organic Chemistry; Indian Association for the Cultivation of Science; 2A & 2B Raja S.C. Mullick Road Kolkata- 700032 West Bengal India
| | - Parthasarathi Dastidar
- Department of Organic Chemistry; Indian Association for the Cultivation of Science; 2A & 2B Raja S.C. Mullick Road Kolkata- 700032 West Bengal India
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87
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Liu CW, Su M, Li XL, Xue T, Liu N, Yin J, Zhu YY, Wu ZQ. Multi-stimuli-responsive chiral organogels based on peptide derivatives. SOFT MATTER 2015; 11:5727-5737. [PMID: 26083487 DOI: 10.1039/c5sm00115c] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A series of chiral aryl amide compounds bearing peptide pendants have been investigated as low molecular weight gelators. A mechanistic study reveals that complementary hydrogen bonding from peptide pendants is the main driving force for the formation of organogels. This new class of organogels can exhibit multi-stimuli-responsive behavior upon applying (1) thermal, (2) pH, (3) enantiomeric purity, and (4) fluoride anion stimuli. Enantiomeric purity as a new external stimulus displays sensitive stimuli-responsiveness; only 0.02 equiv. of the enantiomer can completely disassemble the gel aggregate. They will serve as excellent smart materials with potential applications in chiral sensors, recognition, and separation.
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Affiliation(s)
- Chang-Wei Liu
- School of Chemistry and Chemical Engineering, Key Laboratory of Advanced Functional Materials and Devices, Hefei University of Technology, Hefei, Anhui Province, China.
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88
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Singh N, Tena-Solsona M, Miravet JF, Escuder B. Towards Supramolecular Catalysis with Small Self-assembled Peptides. Isr J Chem 2015. [DOI: 10.1002/ijch.201400185] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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89
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Zhang L, Wang X, Wang T, Liu M. Tuning soft nanostructures in self-assembled supramolecular gels: from morphology control to morphology-dependent functions. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2015; 11:1025-38. [PMID: 25384759 DOI: 10.1002/smll.201402075] [Citation(s) in RCA: 96] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2014] [Revised: 08/17/2014] [Indexed: 05/27/2023]
Abstract
Supramolecular gels are one kind of important soft material, in which small low-molecular weight compounds self-assemble into various nanostructures through non-covalent interactions to immobilize the solvents. While there are many important fundamental issues related to the gelation process, such as the design of the gelator, synergism of various non-covalent interactions between gelators, gelator-solvents, the balances between gelation and crystallization and so on, the self-assembled nanostructures forming during gelation are very interesting. These nanostructures have many unique features, such as the flexibility to respond to external stimuli, morphological diversity, ease of fabrication in large quantities, and so on. This review highlights some important features in tuning the nanostructures in the supramolecular gels from their morphological diversity, morphology control, morphology conversion, and morphology-depended functions.
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Affiliation(s)
- Li Zhang
- Beijing National Laboratory for Molecular Science, CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
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90
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Liu H, Feng J, Zhang J, Miller PW, Chen L, Su CY. A catalytic chiral gel microfluidic reactor assembled via dynamic covalent chemistry. Chem Sci 2015; 6:2292-2296. [PMID: 28706652 PMCID: PMC5488196 DOI: 10.1039/c5sc00314h] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Accepted: 02/18/2015] [Indexed: 11/21/2022] Open
Abstract
A novel dynamic covalent gel strategy is reported to immobilize an asymmetric catalyst within the channels of a microfluidic flow reactor. A layer of a catalytically active Mn-salen dynamic covalent imine gel matrix was coated onto a functionalized capillary. Mn-salen active moiety was incorporated into dynamic covalent imine gel matrix via the reaction of a chiral Mn-salen dialdehyde unit with a tetraamine linker. The catalytic activity of the capillary reactor has been demonstrated in enantioselective kinetic resolution of secondary alcohols.
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Affiliation(s)
- Haoliang Liu
- MOE Laboratory of Bioinorganic and Synthetic Chemistry , MOE Key Laboratory of Polymeric Composite and Functional Materials , Lehn Institute of Functional Materials , School of Chemistry and Chemical Engineering , Sun Yat-Sen University , Guangzhou , 510275 , China . ;
| | - Juan Feng
- MOE Laboratory of Bioinorganic and Synthetic Chemistry , MOE Key Laboratory of Polymeric Composite and Functional Materials , Lehn Institute of Functional Materials , School of Chemistry and Chemical Engineering , Sun Yat-Sen University , Guangzhou , 510275 , China . ;
| | - Jianyong Zhang
- MOE Laboratory of Bioinorganic and Synthetic Chemistry , MOE Key Laboratory of Polymeric Composite and Functional Materials , Lehn Institute of Functional Materials , School of Chemistry and Chemical Engineering , Sun Yat-Sen University , Guangzhou , 510275 , China . ;
| | - Philip W Miller
- Department of Chemistry , Imperial College London , London , SW7 2AZ , UK .
| | - Liuping Chen
- MOE Laboratory of Bioinorganic and Synthetic Chemistry , MOE Key Laboratory of Polymeric Composite and Functional Materials , Lehn Institute of Functional Materials , School of Chemistry and Chemical Engineering , Sun Yat-Sen University , Guangzhou , 510275 , China . ;
| | - Cheng-Yong Su
- MOE Laboratory of Bioinorganic and Synthetic Chemistry , MOE Key Laboratory of Polymeric Composite and Functional Materials , Lehn Institute of Functional Materials , School of Chemistry and Chemical Engineering , Sun Yat-Sen University , Guangzhou , 510275 , China . ;
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91
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Paffen TFE, Ercolani G, de Greef TFA, Meijer EW. Supramolecular Buffering by Ring–Chain Competition. J Am Chem Soc 2015; 137:1501-9. [DOI: 10.1021/ja5110377] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | - Gianfranco Ercolani
- Dipartimento
di Scienze e Tecnologie Chimiche, Università di Roma Tor Vergata, Via della Ricerca Scientifica, 00133 Roma, Italy
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92
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Huerta E, van Genabeek B, Lamers BAG, Koenigs MME, Meijer EW, Palmans ARA. Triggering activity of catalytic rod-like supramolecular polymers. Chemistry 2015; 21:3682-90. [PMID: 25614098 DOI: 10.1002/chem.201405410] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2014] [Indexed: 11/10/2022]
Abstract
Supramolecular polymers based on benzene-1,3,5-tricarboxamides (BTAs) functionalized with an L- or D-proline moiety display high catalytic activity towards aldol reactions in water. High turnover frequencies (TOF) of up to 27×10(-4) s(-1) and excellent stereoselectivities (up to 96% de, up to 99% ee) were observed. In addition, the catalyst could be reused and remained active at catalyst loadings and substrate concentrations as low as 0.1 mol % and 50 mM, respectively. A temperature-induced conformational change in the supramolecular polymer triggers the high activity of the catalyst. The supramolecular polymer's helical sense in combination with the configuration of the proline (L- or D-) is responsible for the observed selectivity.
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Affiliation(s)
- Elisa Huerta
- Institute for Complex Molecular Systems, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven (The Netherlands)
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93
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Mao X, Tian W, Wu J, Rutledge GC, Hatton TA. Electrochemically Responsive Heterogeneous Catalysis for Controlling Reaction Kinetics. J Am Chem Soc 2015; 137:1348-55. [DOI: 10.1021/ja512224g] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Xianwen Mao
- Department of Chemical Engineering and ‡Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Wenda Tian
- Department of Chemical Engineering and ‡Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Jie Wu
- Department of Chemical Engineering and ‡Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Gregory C. Rutledge
- Department of Chemical Engineering and ‡Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - T. Alan Hatton
- Department of Chemical Engineering and ‡Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
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94
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Arivalagan PR, Zhao Y. Interfacial catalysis of aldol reactions by prolinamide surfactants in reverse micelles. Org Biomol Chem 2015; 13:770-5. [DOI: 10.1039/c4ob02074j] [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
Aggregation of prolinamide surfactants in nonpolar solvents enhanced their catalytic activity and gave unusual substrate selectivity in aldol condensations.
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Affiliation(s)
| | - Yan Zhao
- Department of Chemistry
- Iowa State University
- Ames
- USA
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95
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Choi H, Lee JH, Jung JH. Roles of both amines and acid in supramolecular hydrogel formation of tetracarboxyl acid-appended calix[4]arene gelator. RSC Adv 2015. [DOI: 10.1039/c5ra00685f] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A tetracarboxylic acid-appended calix[4]arene derivative 1 which were insoluble in water could form a supramolecular hydrogel upon addition of both amines and HCl.
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Affiliation(s)
- Heekyoung Choi
- Department of Chemistry and Research Institute of Natural Sciences
- Gyeongsang National University
- Jinju
- Korea
| | - Ji Ha Lee
- Department of Chemistry and Research Institute of Natural Sciences
- Gyeongsang National University
- Jinju
- Korea
| | - Jong Hwa Jung
- Department of Chemistry and Research Institute of Natural Sciences
- Gyeongsang National University
- Jinju
- Korea
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96
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Aoyama R, Sako H, Amakatsu M, Yamanaka M. Palladium ion-induced supramolecular gel formation of tris-urea molecules. Polym J 2014. [DOI: 10.1038/pj.2014.96] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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97
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Miao W, Qin L, Yang D, Jin X, Liu M. Multiple-Stimulus-Responsive Supramolecular Gels of Two Components and Dual Chiroptical Switches. Chemistry 2014; 21:1064-72. [DOI: 10.1002/chem.201405406] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2014] [Indexed: 12/24/2022]
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98
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Berdugo C, Escuder B, Miravet JF. Structural insight into the aggregation of L-prolyl dipeptides and its effect on organocatalytic performance. Org Biomol Chem 2014; 13:592-600. [PMID: 25382228 DOI: 10.1039/c4ob02003k] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
NMR and organocatalytic studies of four dipeptides derived from L-proline are described. Results indicate that important conformational changes around the catalytic L-proline moiety are observed for free dipeptides upon changing the adjacent amino acid. Also, an aggregation process is detected as the concentration increases. The self-association of the dipeptides has been fitted to a cooperative binding model. All the compounds have been assayed as catalysts for the conjugated addition of cyclohexanone to trans-β-nitrostyrene in toluene. In agreement with the structural studies, noticeable changes in the catalytic performance are detected upon changing the catalyst concentration, as the catalyst is activated by self-aggregation.
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Affiliation(s)
- Cristina Berdugo
- Departament de Química Inorgànica i Orgànica, Universitat Jaume I, Avda. SosBaynat s/n, Castelló, 12071, Spain.
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99
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Zhang L, Qin L, Wang X, Cao H, Liu M. Supramolecular chirality in self-assembled soft materials: regulation of chiral nanostructures and chiral functions. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2014; 26:6959-6964. [PMID: 24687217 DOI: 10.1002/adma.201305422] [Citation(s) in RCA: 155] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2013] [Revised: 02/19/2014] [Indexed: 06/03/2023]
Abstract
Supramolecular chirality, which arises from the nonsymmetric spatial arrangement of components in the self-assembly systems, has gained great attention owing to its relation to the natural biological structures and the possible new functions in advanced materials. During the self-assembling process, both chiral and achiral components are possible to form chiral nanostructures. Therefore, it becomes an important issue how to fabricate these molecular components into chiral nanostructures. Furthermore, once the chiral nanostructure is obtained, will it show new functions that simple component molecule could not? In this research news, we report our recent development in the regulation of chiral nanostructures in soft gels or vesicle materials. We have further developed several new functions pertaining to the soft gel materials, which single chiral molecules could not perform, such as the chiroptical switch, chiral recognition and the asymmetry catalysis.
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Affiliation(s)
- Li Zhang
- Beijing National Laboratory for Molecular Science (BNLMS), CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
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100
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Lewandowski B, Wennemers H. Asymmetric catalysis with short-chain peptides. Curr Opin Chem Biol 2014; 22:40-6. [DOI: 10.1016/j.cbpa.2014.09.011] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2014] [Revised: 09/08/2014] [Accepted: 09/10/2014] [Indexed: 10/24/2022]
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