1
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Ramesh A, Das TN, Maji TK, Ghosh G. Unravelling denaturation, temperature and cosolvent-driven chiroptical switching in peptide self-assembly with switchable piezoelectric responses. Chem Sci 2024:d4sc05016a. [PMID: 39309077 PMCID: PMC11409859 DOI: 10.1039/d4sc05016a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2024] [Accepted: 09/08/2024] [Indexed: 09/25/2024] Open
Abstract
Herein, we explore the intricate pathway complexity, focusing on the dynamic interplay between kinetic and thermodynamic states, during the supramolecular self-assembly of peptides. We uncover a multiresponsive chiroptical switching phenomenon influenced by temperature, denaturation and content of cosolvent in peptide self-assembly through pathway complexity (kinetic vs. thermodynamic state). Particularly noteworthy is the observation of chiroptical switching during the denaturation process, marking an unprecedented phenomenon in the literature. Furthermore, the variation in cosolvent contents produces notable chiroptical switching effects, emphasizing their infrequent incidence. Such chiroptical switching yields switchable piezoresponsive peptide-based nanomaterials, demonstrating the potential for dynamic control over material properties. In essence, our work pioneers the ability to control piezoresponsive behavior by transforming nanostructures from kinetic to thermodynamic states through pathway complexity. This approach provides new insights and opportunities for tailoring material properties in self-assembled systems.
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Affiliation(s)
- Aparna Ramesh
- Centre for Nano and Soft Matter Sciences (CeNS) Shivanapura, Dasanapura Hobli Bangalore 562162 India
- Academy of Scientific and Innovation Research (AcSIR) Ghaziabad 201002 India
| | - Tarak Nath Das
- New Chemistry Unit (NCU), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) Jakkur Bangalore 560064 India
| | - Tapas Kumar Maji
- New Chemistry Unit (NCU), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) Jakkur Bangalore 560064 India
- Chemistry and Physics of Materials Unit (CPMU), School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) Jakkur Bangalore 560064 India
| | - Goutam Ghosh
- Centre for Nano and Soft Matter Sciences (CeNS) Shivanapura, Dasanapura Hobli Bangalore 562162 India
- Academy of Scientific and Innovation Research (AcSIR) Ghaziabad 201002 India
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2
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Abualnaja MM, Hossan A, Bayazeed A, Al-Qahtani SD, Al-Ahmed ZA, Abdel-Hafez SH, El-Metwaly NM. Synthesis and self-assembly of new fluorescent cholesteryloxy-substituted fluorinated terphenyls with gel formation and mesogenic phases. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.132006] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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3
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Wu LQ, Xu Y, Hou T, Jia JG, Huang XD, Weng GG, Bao SS, Zheng LM. Controllable Macroscopic Chirality of Coordination Polymers through pH and Anion-Mediated Weak Interactions. Chemistry 2021; 27:16722-16734. [PMID: 34632663 DOI: 10.1002/chem.202102954] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Indexed: 12/25/2022]
Abstract
Helical architectures with controllable helical sense bias have recently attracted considerable interest for mimicking biological helices and developing novel chiral materials. Coordination polymers (CPs), composed of metal ion nodes and organic linkers, are intriguing systems showing tunable structures and functions. However, CPs with helical morphologies have rarely been explored so far. Particularly, chirality inversion through external stimulus has not been achieved in helical CPs. In this work, we carried out an in-depth investigation on the self-assembly of 1D gadolinium(III) phosphonate CPs using GdX3 (X=Cl, Br, I) and Gd(RSO3 ) (R=CH3 , C6 H5 , CF3 ) as metal sources and R-(1-phenylethylamino)methyl phosphonic acid (R-pempH2 ) as ligand. Superhelices were formed by precise control of the interchain interactions through different intercalated anions. Furthermore, the twisting direction of superhelices could be controlled by synergistic effect of anions and pH. This study may provide a new route to fabricate helical nanostructures of CPs with a desirable chiral sense and help understand the inner mechanism of the self-assembly process of macroscopic helical structures of molecular systems.
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Affiliation(s)
- Lan-Qing Wu
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210023, China
| | - Yan Xu
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210023, China.,Institute of Information Engineering, Suqian College, Suqian, 223800, China
| | - Ting Hou
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210023, China
| | - Jia-Ge Jia
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210023, China
| | - Xin-Da Huang
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210023, China
| | - Guo-Guo Weng
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210023, China
| | - Song-Song Bao
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210023, China
| | - Li-Min Zheng
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210023, China
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4
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Bai X, Jiang Y, Zhao G, Jiang J, Yuan C, Liu M. Inversing supramolecular chirality and boosting circularly polarized luminescence of pyrene moieties via a gel matrix. SOFT MATTER 2021; 17:4328-4334. [PMID: 33908598 DOI: 10.1039/d1sm00262g] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Alkyl-substituted l/d-glutamide derivatives (L/D-SG) were designed as gelators to fabricate host gel matrices. Pyrene-appended l/d-glutamide derivatives (Py-LG/Py-DG) were employed as guest luminophores to investigate chiral packing and emission behavior in gel matrices. It was found that Py-LG and Py-DG are prone to form P- and M-chirally packed assemblies in DMSO gels, respectively. However, the chiral packing was inversed, and CPL was boosted after Py-LG/Py-DG was embedded in the L/D-SG gel matrix. M-chiral packing together with left-handed excimer emission ((-)-CPL) was observed in the Py-LG immobilized L-SG gel matrix, while P-chiral packing together with right-handed excimer emission ((+)-CPL) was found in the Py-DG immobilized L-SG gel matrix. It is more interesting to find that the molecular chirality of the matrix gelator did not affect the supramolecular chirality of pyrene assemblies. Either l or a d-matrix gelator can inverse the supramolecular chirality of the pure gel, but did not follow the chirality of the matrix. It was found that the gel matrix converts intralayer pyrene-pyrene (Py-Py) packing in the pure pyrene gel to interlayer Py-Py packing, thus giving an opposite chirality. The study not only deepened our understanding of the supramolecular chirality transfer but also unveiled the effects of an inert gel matrix in regulating the chiroptical properties.
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Affiliation(s)
- Xue Bai
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University, Tianjin 300354, China. and Key laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China.
| | - Yuqian Jiang
- Key laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China.
| | - Guangjiu Zhao
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University, Tianjin 300354, China.
| | - Jian Jiang
- Key laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China.
| | - Chenhuan Yuan
- Beijing National Laboratory for Molecular Science, CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, No. 2 ZhongGuanCun BeiYiJie, 100190, Beijing, P. R. China
| | - Minghua Liu
- Key laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China.
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5
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A Multiple Chirality Switching Device for Spatial Light Modulators. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202009916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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6
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Yang G, Yu Y, Yang B, Lu T, Cai Y, Yin H, Zhang H, Zhang NN, Li L, Zhang YM, Zhang SXA. A Multiple Chirality Switching Device for Spatial Light Modulators. Angew Chem Int Ed Engl 2021; 60:2018-2023. [PMID: 32885573 DOI: 10.1002/anie.202009916] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Revised: 08/24/2020] [Indexed: 12/25/2022]
Abstract
A new and simple strategy towards electric-field-driven multiple chirality switching device has been designed and fabricated by combining a newly synthesized base-responsive chiroptical polymer switch (R-FLMA) and p-benzoquinone (p-BQ) via proton-coupled electron transfer (PCET) mechanism. Clear and stable triple chirality states (silence, positive, negative) of this device in visible band can be regulated reversibly (>1000 cycles) by adjusting voltage programs. Furthermore, such chiral switching phenomena are also accompanied by apparent changes of color and fluorescence. More importantly, the potential application of this device for a spatial light modulator has also been demonstrated.
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Affiliation(s)
- Guojian Yang
- State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun, P. R. China.,College of Chemistry, Jilin University, Changchun, P. R. China
| | - Yang Yu
- State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun, P. R. China.,College of Chemistry, Jilin University, Changchun, P. R. China
| | - Baige Yang
- State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun, P. R. China.,College of Chemistry, Jilin University, Changchun, P. R. China
| | - Tong Lu
- State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun, P. R. China.,College of Chemistry, Jilin University, Changchun, P. R. China
| | - Yiru Cai
- College of Chemistry, Jilin University, Changchun, P. R. China
| | - Hang Yin
- Institute of Atom and Molecular Physics, Jilin University, Changchun, P. R. China
| | - Huiqi Zhang
- College of Chemistry, Jilin University, Changchun, P. R. China
| | - Ning-Ning Zhang
- State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun, P. R. China.,College of Chemistry, Jilin University, Changchun, P. R. China
| | - Li Li
- College of Chemistry, Jilin University, Changchun, P. R. China.,State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun, P. R. China
| | - Yu-Mo Zhang
- State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun, P. R. China.,College of Chemistry, Jilin University, Changchun, P. R. China
| | - Sean Xiao-An Zhang
- State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun, P. R. China.,College of Chemistry, Jilin University, Changchun, P. R. China
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7
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Singh WP, Bhandari S, Singh RS. Organogelators derived from the bisphenol A scaffold. NEW J CHEM 2021. [DOI: 10.1039/d1nj02664j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Bisphenol A, a common precursor molecule used in the preparation of some polymers, was investigated as a possible scaffold for the design and synthesis of small-molecule gelators.
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Affiliation(s)
- Wangkhem P. Singh
- Organic Materials Research Laboratory, Department of Basic Sciences and Social Sciences, North-Eastern Hill University, Shillong – 793022, Meghalaya, India
| | - Sanjeev Bhandari
- Physics Division, Department of Basic Sciences and Social Sciences, North-Eastern Hill University, Shillong – 793022, Meghalaya, India
| | - Rajkumar S. Singh
- Organic Materials Research Laboratory, Department of Basic Sciences and Social Sciences, North-Eastern Hill University, Shillong – 793022, Meghalaya, India
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8
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The curious case of 12-hydroxystearic acid — the Dr. Jekyll & Mr. Hyde of molecular gelators. Curr Opin Colloid Interface Sci 2020. [DOI: 10.1016/j.cocis.2019.12.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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9
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Zhang J, Liu J, Tong C, Chen S, Zhang B, Zhang B, Song J. Smart Materials for Environmental Remediation Based on Two-Component Gels: Room-Temperature-Phase-Selective Gelation for the Removal of Organic Pollutants Including Nitrobenzene/O-Dichlorobenzene, and Dye Molecules from the Wastewater. NANOSCALE RESEARCH LETTERS 2019; 14:42. [PMID: 30707315 PMCID: PMC6358627 DOI: 10.1186/s11671-019-2865-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Accepted: 01/14/2019] [Indexed: 06/09/2023]
Abstract
Novel two-component gel systems based on aliphatic acid-hydroxy/base interaction were developed as smart materials for environmental remediation. The G1-A16 gelator could be used directly as a powder form to selectively gel aromatic solvents (nitrobenzene and o-dichlorobenzene) from their mixtures with wastewater (containing 0.5 M sodium nitrate and 0.5 M sodium sulfate) via a simple shaking strategy at room temperature without employing co-solvents and a heating-cooling process. Meanwhile, the two-component gel system can efficiently remove the toxic dyes from the aqueous solution. The dominant factors that drive gelation in the case of the gelator and nitrobenzene or water have been studied using FT-IR, 1H NMR, and XRD. Overall, our research provides an efficient two-component approach for facilely tuning the properties of one-component gel for the realization of high-performance functionalities of gels. At the same time, our study demonstrates potential industrial application prospect in removing pollutants efficiently (such as aromatic solvents and toxic dye removal).
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Affiliation(s)
- Jing Zhang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350 China
- The Co-Innovation Center of Chemistry and Chemical Engineering of Tianjin, Tianjin, 300072 China
- Renai College of Tianjin University, Tianjin, 301636 China
| | - Jiahui Liu
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Ciqing Tong
- Department of Supramolecular and Biomaterials Chemistry, Leiden Institute of Chemistry, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands
| | - Shipeng Chen
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350 China
- The Co-Innovation Center of Chemistry and Chemical Engineering of Tianjin, Tianjin, 300072 China
| | - Baohao Zhang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350 China
- The Co-Innovation Center of Chemistry and Chemical Engineering of Tianjin, Tianjin, 300072 China
| | - Bao Zhang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350 China
- The Co-Innovation Center of Chemistry and Chemical Engineering of Tianjin, Tianjin, 300072 China
| | - Jian Song
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350 China
- The Co-Innovation Center of Chemistry and Chemical Engineering of Tianjin, Tianjin, 300072 China
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10
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Zhu J, Wang R, Geng R, Zhang X, Wang F, Jiao T, Yang J, Bai Z, Peng Q. A facile preparation method for new two-component supramolecular hydrogels and their performances in adsorption, catalysis, and stimuli-response. RSC Adv 2019; 9:22551-22558. [PMID: 35519444 PMCID: PMC9067143 DOI: 10.1039/c9ra03827b] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Accepted: 07/08/2019] [Indexed: 12/17/2022] Open
Abstract
In this study, we prepared a novel multifunctional two-component supramolecular hydrogel (T-G hydrogel) via two organic molecules in ethanol/water mixed solvents. In addition, we prepared gold nanoparticle/T-G (AuNPs/T-G) composite hydrogels using T-G hydrogel as a template for stabilizing AuNPs by adding HAuCl4 and NaBH4 during the heating and cooling process of T-G hydrogels. The morphology and microstructure of the as-prepared hydrogels were characterized using SEM, TEM, XRD, and FT-IR. The hydrogels prepared by solutions that contained different ethanol/water volume ratios exhibited different microstructures, such as sheets, strips, and rods. The obtained T-G hydrogels exhibited a sensitive response to pH changes in the process of sol–gel transformation and showed good adsorption properties for model organic dyes. In the presence of NaBH4, the obtained AuNP/T-G composite hydrogels exhibited the excellent catalytic performance for 4-nitrophenol (4-NP) degradation. Thus, the current research provides new clues in developing new multifunctional two-component supramolecular gel materials and exhibits potential applications for wastewater treatment. New two-component supramolecular hydrogels were prepared via a self-assembly process, demonstrating potential applications in adsorption and catalysis as well as sensor materials.![]()
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Affiliation(s)
- Junlin Zhu
- State Key Laboratory of Metastable Materials Science and Technology
- Yanshan University
- Qinhuangdao 066004
- P. R. China
- Hebei Key Laboratory of Applied Chemistry
| | - Ran Wang
- Hebei Key Laboratory of Applied Chemistry
- School of Environmental and Chemical Engineering
- Yanshan University
- Qinhuangdao 066004
- P. R. China
| | - Rui Geng
- Hebei Key Laboratory of Applied Chemistry
- School of Environmental and Chemical Engineering
- Yanshan University
- Qinhuangdao 066004
- P. R. China
| | - Xuan Zhang
- Hebei Key Laboratory of Applied Chemistry
- School of Environmental and Chemical Engineering
- Yanshan University
- Qinhuangdao 066004
- P. R. China
| | - Fan Wang
- Hebei Key Laboratory of Applied Chemistry
- School of Environmental and Chemical Engineering
- Yanshan University
- Qinhuangdao 066004
- P. R. China
| | - Tifeng Jiao
- State Key Laboratory of Metastable Materials Science and Technology
- Yanshan University
- Qinhuangdao 066004
- P. R. China
- Hebei Key Laboratory of Applied Chemistry
| | - Jingyue Yang
- Hebei Key Laboratory of Applied Chemistry
- School of Environmental and Chemical Engineering
- Yanshan University
- Qinhuangdao 066004
- P. R. China
| | - Zhenhua Bai
- National Engineering Research Center for Equipment and Technology of Cold Strip Rolling
- Yanshan University
- Qinhuangdao 066004
- P. R. China
| | - Qiuming Peng
- State Key Laboratory of Metastable Materials Science and Technology
- Yanshan University
- Qinhuangdao 066004
- P. R. China
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11
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Chen J, Kadam G, Gupta A, Anuradha, Bhosale SV, Zheng F, Zhou C, Jia B, Dalal DS, Li J. A Biomimetic Supramolecular Approach for Charge Transfer between Donor and Acceptor Chromophores with Aggregation‐Induced Emission. Chemistry 2018; 24:14668-14678. [DOI: 10.1002/chem.201803158] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Revised: 08/02/2018] [Indexed: 11/09/2022]
Affiliation(s)
- Jing‐Yu Chen
- Institute for Frontier Materials Deakin University Geelong Victoria Australia
| | - Gajanan Kadam
- Department of Organic Chemistry School of Chemical Sciences North Maharashtra University Jalgaon 425001 Maharashtra India
| | - Akhil Gupta
- Institute for Frontier Materials Deakin University Geelong Victoria Australia
| | - Anuradha
- School of Science RMIT University Melbourne Australia
| | | | - Fei Zheng
- Centre for Micro-Photonics Swinburne University of Technology Hawthorn Victoria 3122 Australia
| | - Chun‐Hua Zhou
- Centre for Micro-Photonics Swinburne University of Technology Hawthorn Victoria 3122 Australia
| | - Bao‐Hua Jia
- Centre for Micro-Photonics Swinburne University of Technology Hawthorn Victoria 3122 Australia
| | - Dipak S. Dalal
- Department of Organic Chemistry School of Chemical Sciences North Maharashtra University Jalgaon 425001 Maharashtra India
| | - Jing‐Liang Li
- Institute for Frontier Materials Deakin University Geelong Victoria Australia
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12
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Li X, Zhang F, Sun X, Hu Y, Song A, Hao J. Hydrogels formed by l-histidine derivatives with highly selective release for charged dyes. CHINESE CHEM LETT 2018. [DOI: 10.1016/j.cclet.2017.12.024] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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13
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Homberg A, Brun E, Zinna F, Pascal S, Górecki M, Monnier L, Besnard C, Pescitelli G, Di Bari L, Lacour J. Combined reversible switching of ECD and quenching of CPL with chiral fluorescent macrocycles. Chem Sci 2018; 9:7043-7052. [PMID: 30310624 PMCID: PMC6137439 DOI: 10.1039/c8sc02935k] [Citation(s) in RCA: 90] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Accepted: 07/30/2018] [Indexed: 11/21/2022] Open
Abstract
A series of chiral fluorescent macrocycles display a remarkable combination of both +/– ECD and strong on/off CPL reversible switching upon cation binding and displacement.
Straightforward synthesis and resolution of a series of chiral fluorescent macrocycles are presented, together with their electronic circular dichroism (ECD), strong excimer fluorescence (EF, λ 300 to 650 nm) and allied highly circularly polarized luminescence (CPL, glum up to 1.7 × 10–2). The ECD, EF and CPL responses are strongly affected by the presence of metal ions (Na+, Ba2+) thanks to deep conformational changes. While ECD signals can be almost completely reversibly inverted upon the complexation/decomplexation of metal ions in a typical binary response, CPL signals are reversibly quenched concomitantly. The designed macrocycles display thus a remarkable combination of both +/– ECD and on/off CPL reversible switching.
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Affiliation(s)
- Alexandre Homberg
- Department of Organic Chemistry , University of Geneva , Quai Ernest Ansermet 30 , 1211 Geneva 4 , Switzerland .
| | - Elodie Brun
- Department of Organic Chemistry , University of Geneva , Quai Ernest Ansermet 30 , 1211 Geneva 4 , Switzerland .
| | - Francesco Zinna
- Department of Organic Chemistry , University of Geneva , Quai Ernest Ansermet 30 , 1211 Geneva 4 , Switzerland .
| | - Simon Pascal
- Department of Organic Chemistry , University of Geneva , Quai Ernest Ansermet 30 , 1211 Geneva 4 , Switzerland .
| | - Marcin Górecki
- Dipartimento di Chimica e Chimica Industriale , Università di Pisa , Via Moruzzi 13 , 56124 Pisa , Italy
| | - Luc Monnier
- Department of Organic Chemistry , University of Geneva , Quai Ernest Ansermet 30 , 1211 Geneva 4 , Switzerland .
| | - Céline Besnard
- Laboratoire de Cristallographie , University of Geneva , Quai Ernest Ansermet 24 , 1211 Geneva 4 , Switzerland
| | - Gennaro Pescitelli
- Dipartimento di Chimica e Chimica Industriale , Università di Pisa , Via Moruzzi 13 , 56124 Pisa , Italy
| | - Lorenzo Di Bari
- Dipartimento di Chimica e Chimica Industriale , Università di Pisa , Via Moruzzi 13 , 56124 Pisa , Italy
| | - Jérôme Lacour
- Department of Organic Chemistry , University of Geneva , Quai Ernest Ansermet 30 , 1211 Geneva 4 , Switzerland .
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14
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Zafrani Y, Kaizerman D, Hadar M, Bigan N, Granot E, Ghosh M, Adler-Abramovich L, Patolsky F, Cohen Y. Pillararene-Based Two-Component Thixotropic Supramolecular Organogels: Complementarity and Multivalency as Prominent Motifs. Chemistry 2018; 24:15750-15755. [PMID: 29745993 DOI: 10.1002/chem.201801418] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 05/09/2018] [Indexed: 02/05/2023]
Abstract
Rationally designed two-component supramolecular organogels based on multiple chemical interactions between percarboxylato- and peramino-pillararenes are described. Mixing low concentration solutions (<1 % w/v) of decacarboxylato-pillar[5]arene (1) with decaamino-pillar[5]arenes (2 b-d) affords, rapidly and without heating, organogels displaying an exceptional combination of properties. These supramolecular organogels, the characteristics of which are tunable, were found to be thixotropic and thermally stable, with Tgel values in some cases exceeding the boiling point of the embedded solvent. It is demonstrated that both structural complementarity and multivalency are important determinants in the gelation process of these attractive soft materials.
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Affiliation(s)
- Yossi Zafrani
- School of Chemistry, Sackler Faculty of Exact Sciences, Tel Aviv University, Ramat Aviv, 69978, Tel Aviv, Israel.,Department of Organic Chemistry, Israel Institute for Biological Research, Ness-Ziona, 740000, Israel
| | - Dana Kaizerman
- School of Chemistry, Sackler Faculty of Exact Sciences, Tel Aviv University, Ramat Aviv, 69978, Tel Aviv, Israel
| | - Maya Hadar
- School of Chemistry, Sackler Faculty of Exact Sciences, Tel Aviv University, Ramat Aviv, 69978, Tel Aviv, Israel
| | - Nitzan Bigan
- School of Chemistry, Sackler Faculty of Exact Sciences, Tel Aviv University, Ramat Aviv, 69978, Tel Aviv, Israel
| | - Eran Granot
- School of Chemistry, Sackler Faculty of Exact Sciences, Tel Aviv University, Ramat Aviv, 69978, Tel Aviv, Israel
| | - Moumita Ghosh
- Department of Oral Biology, Goldschleger School of Dental Medicine, Sackler Faculty of Medicine, Tel Aviv University, Ramat Aviv, 69978, Tel Aviv, Israel
| | - Lihi Adler-Abramovich
- Department of Oral Biology, Goldschleger School of Dental Medicine, Sackler Faculty of Medicine, Tel Aviv University, Ramat Aviv, 69978, Tel Aviv, Israel
| | - Fernando Patolsky
- School of Chemistry, Sackler Faculty of Exact Sciences, Tel Aviv University, Ramat Aviv, 69978, Tel Aviv, Israel
| | - Yoram Cohen
- School of Chemistry, Sackler Faculty of Exact Sciences, Tel Aviv University, Ramat Aviv, 69978, Tel Aviv, Israel
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15
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Raghava SV, Srivastava BK, Ramshad K, Antharjanam S, Varghese B, Muraleedharan KM. From helical supramolecular arrays to gel-forming networks: lattice restructuring and aggregation control in peptide-based sulfamides to integrate new functional attributes. SOFT MATTER 2018; 14:2357-2364. [PMID: 29498388 DOI: 10.1039/c7sm02495a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
While supramolecular organisation is central to both crystallization and gelation, the latter is more complex considering its dynamic nature and multifactorial dependence. This makes the rational design of gelators an extremely difficult task. In this report, the assembly preference of a group of peptide-based sulfamides was modulated by making them part of an acid-amine two-component system to drive the tendency from crystallization to gelation. Here, the peptide core directed the assembly while the long-chain amines, introduced through salt-bridges, promoted layering and anisotropic development of primary aggregates. This proved to be very successful, leading to gelation of a number of solvents. Apart from this, it was possible to fine-tune their aggregation using an amphiphilic polymer like F-127 as an additive to get honey-comb-like 3D molecular architectures. These gels also proved to be excellent matrices for entrapping silver nanoparticles with superior emissive properties.
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Affiliation(s)
- Saripalli V Raghava
- Department of Chemistry, Indian Institute of Technology Madras, Chennai-600036, Tamil Nadu, India.
| | - Bhartendu K Srivastava
- Department of Chemistry, Indian Institute of Technology Madras, Chennai-600036, Tamil Nadu, India.
| | - Kalluruttimmal Ramshad
- Department of Chemistry, Indian Institute of Technology Madras, Chennai-600036, Tamil Nadu, India.
| | | | | | - Kannoth M Muraleedharan
- Department of Chemistry, Indian Institute of Technology Madras, Chennai-600036, Tamil Nadu, India.
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16
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Sun Y, Li S, Zhou Z, Saha ML, Datta S, Zhang M, Yan X, Tian D, Wang H, Wang L, Li X, Liu M, Li H, Stang PJ. Alanine-Based Chiral Metallogels via Supramolecular Coordination Complex Platforms: Metallogelation Induced Chirality Transfer. J Am Chem Soc 2018; 140:3257-3263. [PMID: 29290113 PMCID: PMC5842145 DOI: 10.1021/jacs.7b10769] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Chiral self-assemblies constantly attract great interest because of their potential to provide insight into biological systems and materials science. Herein we report on the efficient preparation of alanine-based chiral metallacycles, rhomboids 1D and 1L and hexagons 2D and 2L using a Pt(II) ← pyridyl directional bonding approach. The metallacycles are subsequently assembled into nanospheres at low concentration, that generate chiral metallogels at high concentration driven by hydrogen bonding, hydrophobic and π-π interactions. The gels consist of microscopic chiral nanofibers with well-defined helicity, as confirmed by circular dichroism (CD) and scanning (SEM) and transmission electron (TEM) microscopies. Given these results, we expect this technique will not only unlock interesting new approaches to understand homochirality in nature but also allow the design of versatile soft materials containing chiral supramolecular cores.
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Affiliation(s)
- Yue Sun
- Key Laboratory of Pesticide and Chemical Biology (CCNU), Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
- Department of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake City, Utah 84112
| | - Shuai Li
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Science, Beijing 100190, P. R. China
| | - Zhixuan Zhou
- Department of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake City, Utah 84112
| | - Manik Lal Saha
- Department of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake City, Utah 84112
| | - Sougata Datta
- Department of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake City, Utah 84112
| | - Mingming Zhang
- Department of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake City, Utah 84112
| | - Xuzhou Yan
- Department of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake City, Utah 84112
| | - Demei Tian
- Key Laboratory of Pesticide and Chemical Biology (CCNU), Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
- Department of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake City, Utah 84112
| | - Heng Wang
- Department of Chemistry, University of South Florida, 4202 East Fowler Avenue, Tampa, Florida 33620, United States
| | - Lei Wang
- Department of Chemistry, University of South Florida, 4202 East Fowler Avenue, Tampa, Florida 33620, United States
| | - Xiaopeng Li
- Department of Chemistry, University of South Florida, 4202 East Fowler Avenue, Tampa, Florida 33620, United States
| | - Minghua Liu
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Science, Beijing 100190, P. R. China
| | - Haibing Li
- Key Laboratory of Pesticide and Chemical Biology (CCNU), Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Peter J. Stang
- Department of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake City, Utah 84112
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17
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Liu G, Li X, Sheng J, Li PZ, Ong WK, Phua SZF, Ågren H, Zhu L, Zhao Y. Helicity Inversion of Supramolecular Hydrogels Induced by Achiral Substituents. ACS NANO 2017; 11:11880-11889. [PMID: 29140680 DOI: 10.1021/acsnano.7b06097] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Probing the supramolecular chirality of assemblies and controlling their handedness are closely related to the origin of chirality at the supramolecular level and the development of smart materials with desired handedness. However, it remains unclear how achiral residues covalently bonded to chiral amino acids can function in the chirality inversion of supramolecular assemblies. Herein, we report macroscopic chirality and dynamic manipulation of chiroptical activity of hydrogels self-assembled from phenylalanine derivatives, together with the inversion of their handedness achieved solely by exchanging achiral substituents between oligo(ethylene glycol) and carboxylic acid groups. This helicity inversion is mainly induced by distinct stacking mode of the self-assembled building blocks, as collectively confirmed by scanning electron microscopy, circular dichroism, crystallography, and molecular dynamics calculations. Through this straightforward approach, we were able to invert the handedness of helical assemblies by merely exchanging achiral substituents at the terminal of chiral gelators. This work not only presents a feasible strategy to achieve the handedness inversion of helical nanostructures for better understanding of chiral self-assembly process in supramolecular chemistry but also facilities the development of smart materials with controllable handedness in materials science.
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Affiliation(s)
- Guofeng Liu
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University , 21 Nanyang Link, 637371 Singapore
| | - Xin Li
- Division of Theoretical Chemistry and Biology, School of Biotechnology, KTH Royal Institute of Technology , SE-10691 Stockholm, Sweden
| | - Jianhui Sheng
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University , 21 Nanyang Link, 637371 Singapore
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University , Shanghai 200433, P.R. China
| | - Pei-Zhou Li
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University , 21 Nanyang Link, 637371 Singapore
| | - Wee Kong Ong
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University , 21 Nanyang Link, 637371 Singapore
| | - Soo Zeng Fiona Phua
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University , 21 Nanyang Link, 637371 Singapore
| | - Hans Ågren
- Division of Theoretical Chemistry and Biology, School of Biotechnology, KTH Royal Institute of Technology , SE-10691 Stockholm, Sweden
| | - Liangliang Zhu
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University , Shanghai 200433, P.R. 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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18
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Raghava SV, Gopinath P, Srivastava BK, Ramkumar V, Muraleedharan KM. Sulfamide-Lattice Restructuring To Form Dimensionally Controlled Molecular Arrays and Gel-Forming Systems. Chemistry 2017; 23:3658-3665. [PMID: 28004423 DOI: 10.1002/chem.201604911] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Indexed: 01/08/2023]
Abstract
A design approach that incorporates structural requirements for the formation of a 1D assembly, fibril stability, and fibril-fibril interactions for gelation was attempted by using amino acid-based sulfamides with the general structure Aa-NH-SO2 -NH-Aa (Aa=amino acid). A preference for 1D assembly alone was not a sufficient condition for gelation, which became evident from studies involving sulfamide esters 1-5. Reducing the crystallization tendency without hindering unidirectional growth was executed through diacids of the sulfamide precursors with various amines that form an envelope around the sulfamide core through salt bridges. This strategy was fruitful, and gels of a wide variety of solvents could be formed by varying the acid and amine components. The use of dodecylamine or benzylamine, which could stabilize the molecular layers through alkyl-chain segregation or π-π interactions improved the gelation tendency, whereas the nature of the amino acid side chain, especially the rotational freedom and hydrophobicity, had a direct role in dictating the solvent preference. Crystallographic studies of these two-component systems gave molecular-level insight into the assembly and showed the importance of anisotropy in the distribution of secondary interactions in gelation.
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Affiliation(s)
- Saripalli V Raghava
- Department of Chemistry, Indian Institute of Technology Madras, Chennai-, 600036, Tamil Nadu, India
| | - Pushparathinam Gopinath
- Department of Chemistry, Indian Institute of Technology Madras, Chennai-, 600036, Tamil Nadu, India
| | - Bhartendu K Srivastava
- Department of Chemistry, Indian Institute of Technology Madras, Chennai-, 600036, Tamil Nadu, India
| | - Venkatachalam Ramkumar
- Department of Chemistry, Indian Institute of Technology Madras, Chennai-, 600036, Tamil Nadu, India
| | - Kannoth M Muraleedharan
- Department of Chemistry, Indian Institute of Technology Madras, Chennai-, 600036, Tamil Nadu, India
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19
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Manouras T, Vamvakaki M. Field responsive materials: photo-, electro-, magnetic- and ultrasound-sensitive polymers. Polym Chem 2017. [DOI: 10.1039/c6py01455k] [Citation(s) in RCA: 211] [Impact Index Per Article: 30.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Recent advances in field-responsive polymers, which have emerged as highly promising materials for numerous applications, are highlighted.
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Affiliation(s)
- Theodore Manouras
- Institute of Electronic Structure and Laser
- Foundation for Research and Technology-Hellas
- Heraklion
- Greece
| | - Maria Vamvakaki
- Institute of Electronic Structure and Laser
- Foundation for Research and Technology-Hellas
- Heraklion
- Greece
- University of Crete
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20
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Wang Y, Liu Y, Jin L, Yin B. T-shaped monopyridazinotetrathiafulvalene-amino acid diad based chiral organogels with aggregation-induced fluorescence emission. SOFT MATTER 2016; 12:6373-6384. [PMID: 27418524 DOI: 10.1039/c6sm01249c] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A series of pyridazine coupled tetrathiafulvalene T-shaped derivatives with varying amino acid moieties have been synthesized and their gelation properties were studied in various organic solvents. Among these derivatives, two gelators bearing glycine or phenylalanine units display efficient gelation in aromatic and polar solvents. Interestingly, these gelators, except for the gelator containing two tryptophan units, are able to gel DMF via a solution-to-gel transformation when triggered with sonication for less than 20 s or cooled below zero. A number of experiments revealed that these gelator molecules self-assembled into elastically interpenetrating three-dimensional chiral fibrillar aggregates. Importantly, all of the resulting gels result in a dramatic enhancement of the fluorescence intensity compared with their hot solution in spite of the absence of a conventional fluorophore unit and the fluorescence was effectively quenched by the introduction of C60. Moreover, the gelators can be utilized for the removal of different types of toxic molecules, such as aromatic solvents and cationic dyes, from wastewater.
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Affiliation(s)
- Yuan Wang
- A Key Laboratory of Natural Resources of Changbai Mountain & Functional Molecules, Yanbian University, Ministry of Education, Yanji, Jilin 133002, P. R. China.
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21
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Cao ZQ, Wang GJ. Multi-Stimuli-Responsive Polymer Materials: Particles, Films, and Bulk Gels. CHEM REC 2016; 16:1398-435. [DOI: 10.1002/tcr.201500281] [Citation(s) in RCA: 120] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Indexed: 01/05/2023]
Affiliation(s)
- Zi-Quan Cao
- School of Materials Science and Engineering; University of Science and Technology Beijing; Beijing 100083 P. R. China
| | - Guo-Jie Wang
- School of Materials Science and Engineering; University of Science and Technology Beijing; Beijing 100083 P. R. China
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22
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Liu Y, Wang Y, Jin L, Chen T, Yin B. MPTTF-containing tripeptide-based organogels: receptor for 2,4,6-trinitrophenol and multiple stimuli-responsive properties. SOFT MATTER 2016; 12:934-945. [PMID: 26563974 DOI: 10.1039/c5sm02462e] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A series of monopyrrolotetrathiafulvalene-tripeptide conjugates have been synthesized and investigated as new low-molecular mass organogelators. It was found that most of these compounds could immobilize low-polarity solvents readily and the gelation behaviors of these gelators showed a dependence on the amino acid residues. These organogels were thoroughly studied using various techniques including atomic force microscopy (AFM), field-emission scanning electron microscopy (FE-SEM), circular dichroism (CD) spectroscopy, Fourier-transform infrared (FT-IR) spectroscopy, (1)H NMR spectroscopy, UV-Vis absorption spectroscopy and X-ray diffraction (XRD). The results showed that the cooperative interplay of hydrogen bonding, π-π stacking and SS interactions were the main driving force for the formation of the gels. Of all the organogels, the aromatic solvent gels, such as toluene gel, exhibited multiple-stimulus responsiveness towards heating, shaking, chemical redox activity and the presence of anions, thus leading to reversible sol-gel phase transitions. Most interestingly, gelation in the presence of 2,4,6-trinitrophenol (TNP) in organic solvents could be observed visually with a concomitant color change through donor-acceptor interactions. The strength of the charge-transfer interaction between gelators and TNP was proportional to the incubation time and increasing critical gelation concentration (CGC). The gels could function as efficient absorbents for potential application in removal of crystal violet and rhodamine B dyes from water.
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Affiliation(s)
- Yucun Liu
- Key Laboratory of Natural Resources of Changbai Mountain & Functional Molecules, Yanbian University, Ministry of Education, Yanji, Jilin 133002, P. R. China.
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23
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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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24
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Guan X, Fan K, Gao T, Ma A, Zhang B, Song J. A novel multi-stimuli responsive gelator based on d-gluconic acetal and its potential applications. Chem Commun (Camb) 2016; 52:962-5. [DOI: 10.1039/c5cc08615a] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The goal of integrating multi-stimuli responsiveness and versatile applications into a single organogelator is achieved.
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Affiliation(s)
- Xidong Guan
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin
- China
- The Co-Innovation Center of Chemistry and Chemical Engineering of Tianjin
| | - Kaiqi Fan
- School of Material and Chemical Engineering
- Zhengzhou University of Light Industry
- Zhengzhou 450002
- China
| | - Tongyang Gao
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin
- China
| | - Anping Ma
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin
- China
| | - Bao Zhang
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin
- China
| | - Jian Song
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin
- China
- The Co-Innovation Center of Chemistry and Chemical Engineering of Tianjin
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25
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Oh H, Yaraghi N, Raghavan SR. Gelation of Oil upon Contact with Water: A Bioinspired Scheme for the Self-Repair of Oil Leaks from Underwater Tubes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:5259-5264. [PMID: 25955654 DOI: 10.1021/acs.langmuir.5b00676] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Molecular organogelators convert oils into gels by forming self-assembled fibrous networks. Here, we demonstrate that such gelation can be activated by contacting the oil with an immiscible solvent (water). Our gelator is dibenzylidene sorbitol (DBS), which forms a low-viscosity sol when added to toluene containing a small amount of dimethyl sulfoxide (DMSO). Upon contact with water, DMSO partitions into the water, activating gelation of DBS in the toluene. The gel grows from the oil/water interface and slowly envelops the oil phase. We have exploited this effect for the self-repair of oil leaks from underwater tubes. When a DBS/toluene/DMSO solution flows through the tube, it forms a gel selectively at the leak point, thereby plugging the leak and restoring flow. Our approach is reminiscent of wound-sealing via blood-clotting: there also, inactive gelators in blood are activated at the wound site into a fibrous network, thereby plugging the wound and restoring blood flow.
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Affiliation(s)
- Hyuntaek Oh
- Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, Maryland 20742, United States
| | - Nicholas Yaraghi
- Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, Maryland 20742, United States
| | - Srinivasa R Raghavan
- Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, Maryland 20742, United States
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26
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di Gregorio MC, Varenik M, Gubitosi M, Travaglini L, Pavel NV, Jover A, Meijide F, Regev O, Galantini L. Multi stimuli response of a single surfactant presenting a rich self-assembly behavior. RSC Adv 2015. [DOI: 10.1039/c5ra01394a] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
A bile salt derived surfactant shows an unusually rich multi responsive self-assembly, involving interesting opening/closure mechanisms of supramolecular tubules and drastic spectroscopic variations, potentially exploitable in sensing.
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Affiliation(s)
| | - M. Varenik
- Department of Chemical Engineering
- Ben-Gurion University of the Negev
- Beer-Sheva 84105
- Israel
| | - M. Gubitosi
- Dipartimento di Chimica
- Università di Roma “Sapienza”
- 00185 Roma
- Italy
| | - L. Travaglini
- Dipartimento di Chimica
- Università di Roma “Sapienza”
- 00185 Roma
- Italy
| | - N. V. Pavel
- Dipartimento di Chimica
- Università di Roma “Sapienza”
- 00185 Roma
- Italy
| | - A. Jover
- Departamento de Química Física
- Facultad de Ciencias
- Universidad de Santiago de Compostela
- 27002 Lugo
- Spain
| | - F. Meijide
- Departamento de Química Física
- Facultad de Ciencias
- Universidad de Santiago de Compostela
- 27002 Lugo
- Spain
| | - O. Regev
- Department of Chemical Engineering
- Ben-Gurion University of the Negev
- Beer-Sheva 84105
- Israel
| | - L. Galantini
- Dipartimento di Chimica
- Università di Roma “Sapienza”
- 00185 Roma
- Italy
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27
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Ohsedo Y, Taniguchi M, Oono M, Saruhashi K, Watanabe H. Long-chain alkylamide-derived oil gels: mixing induced onset of thixotropy and application in sustained drug release. NEW J CHEM 2015. [DOI: 10.1039/c5nj00999e] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Oil gels composed of long-chain alkylamides exhibited thixotropic properties, although the same property was absent in each alkylamide.
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Affiliation(s)
- Yutaka Ohsedo
- Advanced Materials Research Laboratory
- Collaborative Research Division, Art, Science and Technology Center for Cooperative Research
- Kyushu University
- Nishi-ku
- Japan
| | - Makiko Taniguchi
- Advanced Materials Research Laboratory
- Collaborative Research Division, Art, Science and Technology Center for Cooperative Research
- Kyushu University
- Nishi-ku
- Japan
| | | | | | - Hisayuki Watanabe
- Advanced Materials Research Laboratory
- Collaborative Research Division, Art, Science and Technology Center for Cooperative Research
- Kyushu University
- Nishi-ku
- Japan
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28
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Bhattacharjee S, Bhattacharya S. Role of synergistic π–π stacking and X–H⋯Cl (X = C, N, O) H-bonding interactions in gelation and gel phase crystallization. Chem Commun (Camb) 2015; 51:7019-22. [DOI: 10.1039/c5cc00930h] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Gel phase crystallization in a transparent gel via synergistic non-covalent interactions has been reported along with various remarkable features.
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Affiliation(s)
| | - Santanu Bhattacharya
- Department of Organic Chemistry
- Indian Institute of Science
- Bangalore
- India
- Jawaharlal Nehru Centre for Advanced Scientific Research
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