1
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Wang H, Wan T, Wang H, Wang S, Li Q, Cheng B. Novel colorimetric membranes based on polylactic acid-grafted-citrated methacrylated urethane (PLA-CMU) to monitor cod freshness. Int J Biol Macromol 2022; 194:452-460. [PMID: 34822833 DOI: 10.1016/j.ijbiomac.2021.11.087] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 11/07/2021] [Accepted: 11/14/2021] [Indexed: 11/28/2022]
Abstract
Halochromic agent is easy to fall off from the surface of colorimetric membranes during fish freshness monitoring, which would decay the test accuracy. In order to increase its anchoring, citrated methacrylated urethane (CMU) synthesized by using tributyl citrate, β-hydroxyethyl methacrylate and diphenyl-methane-diisocyanate as a halochromic agent was grafted on polylactic acid (PLA). The CMU grafted PLA (PLA-CMU) together with tetrabutylammonium chloride (TBAC) prepared colorimetric membranes via electrospinning. 1H NMR and FTIR analysis showed successful bonding between CMU and PLA, and PLA-CMU grafting efficiency reached to the maximum value of 11.15%. Moreover, DSC confirmed that PLA-CMU existed low cold-crystallization temperature due to the excellent compatibility of CMU with PLA, which enhanced the anchoring of CMU effectively. Nanofiber-based PLA-CMU/TBAC colorimetric membrane enhanced the probability of molecules being captured due to its porous structure and large specific surface area. In addition, the increase in hydrophilicity of the membrane can provide a microenvironment for liquid phase reaction, exhibiting obvious color-changing sensitivity during cod freshness monitoring, from white color to light orange or pink with the deterioration of cod at 25 °C and 4 °C respectively. The results demonstrate PLA-CMU/TBAC colorimetric membranes would provide a simple and promising strategy for monitoring fish freshness.
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Affiliation(s)
- Hui Wang
- College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology (TUST), Tianjin 300457, PR China
| | - Tong Wan
- College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology (TUST), Tianjin 300457, PR China
| | - Hao Wang
- College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, PR China
| | - Shaoyu Wang
- College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology (TUST), Tianjin 300457, PR China.
| | - Quanxiang Li
- Institute for Frontier Materials, Deakin University, Geelong, Victoria 3216, Australia.
| | - Bowen Cheng
- College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology (TUST), Tianjin 300457, PR China.
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2
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Gao SC, Wan K, Fang X, Li YX, Xue M, Yang Y. Determination of association constants and FRET in hydrazide-based molecular duplex strands. Org Chem Front 2020. [DOI: 10.1039/d0qo00746c] [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
The association constants for the hydrazide-based molecular duplex strands can be determined via monitoring the pyrene excimer emission. By mixing pyrene and perylene labelled oligomers, supramolecular substitution reactions induced efficient FRET.
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Affiliation(s)
- Shi-Chang Gao
- School of Science
- Zhejiang Sci-Tech University
- Hangzhou 310018
- China
| | - Kang Wan
- School of Science
- Zhejiang Sci-Tech University
- Hangzhou 310018
- China
| | - Xu Fang
- School of Science
- Zhejiang Sci-Tech University
- Hangzhou 310018
- China
| | - Yong-Xue Li
- School of Science
- Zhejiang Sci-Tech University
- Hangzhou 310018
- China
| | - Min Xue
- School of Science
- Zhejiang Sci-Tech University
- Hangzhou 310018
- China
| | - Yong Yang
- School of Science
- Zhejiang Sci-Tech University
- Hangzhou 310018
- China
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3
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Konda M, Ghosh T, Mobin SM, Das AK. Intertwined gababutin-based supramolecular double helix. NEW J CHEM 2019. [DOI: 10.1039/c8nj05009k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A dimer-assembly driven supramolecular double helix is observed for the gababutin-based short peptide sequence and this architecture exhibits electrochemical features.
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Affiliation(s)
- Maruthi Konda
- Department of Chemistry
- Indian Institute of Technology Indore
- Indore 453552
- India
| | - Tapas Ghosh
- Department of Chemistry
- Indian Institute of Technology Indore
- Indore 453552
- India
| | - Shaikh M. Mobin
- Department of Chemistry
- Indian Institute of Technology Indore
- Indore 453552
- India
| | - Apurba K. Das
- Department of Chemistry
- Indian Institute of Technology Indore
- Indore 453552
- India
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4
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Wang H, Han Y, Yuan W, Wu M, Chen Y. Self-Assembly of Azobenzene Derivatives into Organogels and Photoresponsive Liquid Crystals. Chem Asian J 2018; 13:1173-1179. [PMID: 29453904 DOI: 10.1002/asia.201800019] [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: 01/05/2018] [Indexed: 12/17/2022]
Abstract
A new class of coil-rod-coil molecules with an azobenzene core was synthesized. They were found to form robust organogels in several organic solvents. Scanning electron microscopy (SEM), transmission electron microscopy (TEM), atomic force microscopy (AFM), FTIR spectroscopy, UV/Vis absorption spectroscopy, 1 H NMR spectroscopy, and X-ray diffraction (XRD) revealed that in these organogels, the molecules self-assembled into a nanofiber network with an H-type aggregation mode under the joint effect of π-π stacking, intermolecular hydrogen bonding, and van der Waals forces. Interestingly, the incorporation of the azobenzene mesogene into the rigid core led to photoisomerizable liquid crystal materials, which exhibited quick responsiveness to light and temperature, along with the trans-cis transition stimulated by UV light and heating.
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Affiliation(s)
- Hongyan Wang
- Department of Chemistry, School of Sciences, and School of Materials Science and Engineering, Tianjin University, Tianjin, 300354, P. R. China
| | - Yi Han
- Department of Chemistry, School of Sciences, and School of Materials Science and Engineering, Tianjin University, Tianjin, 300354, P. R. China
| | - Wei Yuan
- Department of Chemistry, School of Sciences, and School of Materials Science and Engineering, Tianjin University, Tianjin, 300354, P. R. China
| | - Mengjiao Wu
- Department of Chemistry, School of Sciences, and School of Materials Science and Engineering, Tianjin University, Tianjin, 300354, P. R. China
| | - Yulan Chen
- Department of Chemistry, School of Sciences, and School of Materials Science and Engineering, Tianjin University, Tianjin, 300354, P. R. China
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5
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Lamouroux A, Sebaoun L, Wicher B, Kauffmann B, Ferrand Y, Maurizot V, Huc I. Controlling Dipole Orientation through Curvature: Aromatic Foldamer Bent β-Sheets and Helix–Sheet–Helix Architectures. J Am Chem Soc 2017; 139:14668-14675. [DOI: 10.1021/jacs.7b07961] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Arthur Lamouroux
- Université de Bordeaux, CNRS, Bordeaux Institut National Polytechnique, CBMN (UMR 5248), Institut Européen de
Chimie Biologie, 2 Rue
Escarpit, 33600 Pessac, France
| | - Laure Sebaoun
- Université de Bordeaux, CNRS, Bordeaux Institut National Polytechnique, CBMN (UMR 5248), Institut Européen de
Chimie Biologie, 2 Rue
Escarpit, 33600 Pessac, France
| | - Barbara Wicher
- Université de Bordeaux, CNRS, Bordeaux Institut National Polytechnique, CBMN (UMR 5248), Institut Européen de
Chimie Biologie, 2 Rue
Escarpit, 33600 Pessac, France
| | - Brice Kauffmann
- Université de Bordeaux, CNRS, INSERM, Institut Européen
de Chimie Biologie (UMS3033/US001), 2 Rue Escarpit, 33600 Pessac, France
| | - Yann Ferrand
- Université de Bordeaux, CNRS, Bordeaux Institut National Polytechnique, CBMN (UMR 5248), Institut Européen de
Chimie Biologie, 2 Rue
Escarpit, 33600 Pessac, France
| | - Victor Maurizot
- Université de Bordeaux, CNRS, Bordeaux Institut National Polytechnique, CBMN (UMR 5248), Institut Européen de
Chimie Biologie, 2 Rue
Escarpit, 33600 Pessac, France
| | - Ivan Huc
- Université de Bordeaux, CNRS, Bordeaux Institut National Polytechnique, CBMN (UMR 5248), Institut Européen de
Chimie Biologie, 2 Rue
Escarpit, 33600 Pessac, France
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6
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Zhang DW, Wang H, Li ZT. Polymeric Tubular Aromatic Amide Helices. Macromol Rapid Commun 2017; 38. [DOI: 10.1002/marc.201700179] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Revised: 04/10/2017] [Indexed: 12/15/2022]
Affiliation(s)
- Dan-Wei Zhang
- Department of Chemistry; Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials; Collaborative Innovation Center of Chemistry for Energy Materials (iChEM); Fudan University; Shanghai 200433 China
| | - Hui Wang
- Department of Chemistry; Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials; Collaborative Innovation Center of Chemistry for Energy Materials (iChEM); Fudan University; Shanghai 200433 China
| | - Zhan-Ting Li
- Department of Chemistry; Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials; Collaborative Innovation Center of Chemistry for Energy Materials (iChEM); Fudan University; Shanghai 200433 China
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7
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Ma W, Chen C, Kong K, Dong Q, Li K, Yuan M, Li D, Hou Z. Peroxotantalate-Based Ionic Liquid Catalyzed Epoxidation of Allylic Alcohols with Hydrogen Peroxide. Chemistry 2017; 23:7287-7296. [DOI: 10.1002/chem.201605661] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2016] [Indexed: 11/11/2022]
Affiliation(s)
- Wenbao Ma
- Key Laboratory for Advanced Materials; Research Institute of Industrial Catalysis; East China University of Science and Technology; Shanghai 200237 P.R. China
| | - Chen Chen
- Key Laboratory for Advanced Materials; Research Institute of Industrial Catalysis; East China University of Science and Technology; Shanghai 200237 P.R. China
| | - Kang Kong
- Key Laboratory for Advanced Materials; Research Institute of Industrial Catalysis; East China University of Science and Technology; Shanghai 200237 P.R. China
| | - Qifeng Dong
- Key Laboratory for Advanced Materials; Research Institute of Industrial Catalysis; East China University of Science and Technology; Shanghai 200237 P.R. China
| | - Kun Li
- Key Laboratory for Advanced Materials; Research Institute of Industrial Catalysis; East China University of Science and Technology; Shanghai 200237 P.R. China
| | - Mingming Yuan
- Key Laboratory for Advanced Materials; Research Institute of Industrial Catalysis; East China University of Science and Technology; Shanghai 200237 P.R. China
| | - Difan Li
- Key Laboratory for Advanced Materials; Research Institute of Industrial Catalysis; East China University of Science and Technology; Shanghai 200237 P.R. China
| | - Zhenshan Hou
- Key Laboratory for Advanced Materials; Research Institute of Industrial Catalysis; East China University of Science and Technology; Shanghai 200237 P.R. China
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8
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Lin F, Liang R, Qi Q, Zhan T, Li Z, Zhao X. Construction of Vesicles, Micro/Nanorods and Ultralong Nanotubes through the Self-Assembly of Non-Classical Amphiphiles with Rigid Conformation. CHINESE J CHEM 2017. [DOI: 10.1002/cjoc.201600906] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Feng Lin
- Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; Shanghai 200032 China
| | - Rongran Liang
- Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; Shanghai 200032 China
| | - Qiaoyan Qi
- Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; Shanghai 200032 China
| | - Tianguang Zhan
- Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; Shanghai 200032 China
| | - Zhanting Li
- Department of Chemistry; Fudan University; Shanghai 200433 China
| | - Xin Zhao
- Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; Shanghai 200032 China
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9
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Sun Y, Wang YX, Wu M, Yuan W, Chen Y. p-Quaterphenylene as an Aggregation-Induced Emission Fluorogen in Supramolecular Organogels and Fluorescent Sensors. Chem Asian J 2016; 12:52-59. [DOI: 10.1002/asia.201601388] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2016] [Indexed: 12/26/2022]
Affiliation(s)
- Yue Sun
- Tianjin Key Laboratory of Molecular Optoelectronic Science; Department of Chemistry; Tianjin University; Tianjin 300354 P. R. China
| | - Yi-Xuan Wang
- Tianjin Key Laboratory of Molecular Optoelectronic Science; Department of Chemistry; Tianjin University; Tianjin 300354 P. R. China
| | - Mengjiao Wu
- Tianjin Key Laboratory of Molecular Optoelectronic Science; Department of Chemistry; Tianjin University; Tianjin 300354 P. R. China
| | - Wei Yuan
- Tianjin Key Laboratory of Molecular Optoelectronic Science; Department of Chemistry; Tianjin University; Tianjin 300354 P. R. China
| | - Yulan Chen
- Tianjin Key Laboratory of Molecular Optoelectronic Science; Department of Chemistry; Tianjin University; Tianjin 300354 P. R. China
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10
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Zhang P, Zhang L, Wang ZK, Zhang YC, Guo R, Wang H, Zhang DW, Li ZT. Guest-Induced Arylamide Polymer Helicity: Twist-Sense Bias and Solvent-Dependent Helicity Inversion. Chem Asian J 2016; 11:1725-30. [DOI: 10.1002/asia.201600289] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2016] [Indexed: 01/07/2023]
Affiliation(s)
- Peng Zhang
- Department of Chemistry, Collaborative Innovation Centre of Chemistry for Energy Materials (iChEM); Fudan University; 220 Handan Road Shanghai 200433 China
| | - Liang Zhang
- Department of Chemistry, Collaborative Innovation Centre of Chemistry for Energy Materials (iChEM); Fudan University; 220 Handan Road Shanghai 200433 China
| | - Ze-Kun Wang
- Department of Chemistry, Collaborative Innovation Centre of Chemistry for Energy Materials (iChEM); Fudan University; 220 Handan Road Shanghai 200433 China
| | - Yun-Chang Zhang
- Department of Chemistry, Collaborative Innovation Centre of Chemistry for Energy Materials (iChEM); Fudan University; 220 Handan Road Shanghai 200433 China
| | - Rong Guo
- Department of Chemistry, Collaborative Innovation Centre of Chemistry for Energy Materials (iChEM); Fudan University; 220 Handan Road Shanghai 200433 China
| | - Hui Wang
- Department of Chemistry, Collaborative Innovation Centre of Chemistry for Energy Materials (iChEM); Fudan University; 220 Handan Road Shanghai 200433 China
| | - Dan-Wei Zhang
- Department of Chemistry, Collaborative Innovation Centre of Chemistry for Energy Materials (iChEM); Fudan University; 220 Handan Road Shanghai 200433 China
| | - Zhan-Ting Li
- Department of Chemistry, Collaborative Innovation Centre of Chemistry for Energy Materials (iChEM); Fudan University; 220 Handan Road Shanghai 200433 China
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11
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Zhang P, Wang Z, Zhang L, Wang H, Zhang D, Hou J, Li Z. Aromatic Amide Polymers that Form Two Helical Conformations with Twist Sense Bias in Water. CHINESE J CHEM 2016. [DOI: 10.1002/cjoc.201600140] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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12
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Xu L, Yang HB. Our Expedition in Linear Neutral Platinum-Acetylide Complexes: The Preparation of Micro/nanostructure Materials, Complicated Topologies, and Dye-Sensitized Solar Cells. CHEM REC 2016; 16:1274-97. [PMID: 27097565 DOI: 10.1002/tcr.201500271] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Indexed: 01/12/2023]
Abstract
During the past few decades, the construction of various kinds of platinum-acetylide complexes has attracted considerable attention, because of their wide applications in photovoltaic cells, non-linear optics, and bio-imaging materials. Among these platinum-acetylide complexes, the linear neutral platinum-acetylide complexes, due to their attractive properties, such as well-defined linear geometry, synthetic accessibility, and intriguing photoproperties, have emerged as a rising star in this field. In this personal account, we will discuss how we entered the field of linear neutral platinum-acetylide chemistry and what we found in this field. The preparation of various types of linear neutral platinum-acetylide complexes and their applications in the areas of micro/nanostructure materials, complicated topologies, and dye-sensitized solar cells will be summarized in this account.
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Affiliation(s)
- Lin Xu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663 N. Zhongshan Road, Shanghai, 200062, P. R. China
| | - Hai-Bo Yang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663 N. Zhongshan Road, Shanghai, 200062, P. R. China
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13
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Guo R, Zhang L, Wang H, Zhang DW, Li ZT. Hydrophobically driven twist sense bias of hollow helical foldamers of aromatic hydrazide polymers in water. Polym Chem 2015. [DOI: 10.1039/c5py00129c] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Aromatic hydrazide polymers bearingS-chiral tetraethylene glycol chains can fold into M hollow helices in water driven by the hydrophobicity.
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Affiliation(s)
- Rong Guo
- Department of Chemistry
- Collaborative Innovation Center of Chemistry for Energy Materials (iChEM)
- Fudan University
- Shanghai 200433
- China
| | - Liang Zhang
- Department of Chemistry
- Collaborative Innovation Center of Chemistry for Energy Materials (iChEM)
- Fudan University
- Shanghai 200433
- China
| | - Hui Wang
- Department of Chemistry
- Collaborative Innovation Center of Chemistry for Energy Materials (iChEM)
- Fudan University
- Shanghai 200433
- China
| | - Dan-Wei Zhang
- Department of Chemistry
- Collaborative Innovation Center of Chemistry for Energy Materials (iChEM)
- Fudan University
- Shanghai 200433
- China
| | - Zhan-Ting Li
- Department of Chemistry
- Collaborative Innovation Center of Chemistry for Energy Materials (iChEM)
- Fudan University
- Shanghai 200433
- China
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14
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Zhang DW, Wang H, Li ZT. Hydrogen Bonding Motifs: New Progresses. LECTURE NOTES IN CHEMISTRY 2015. [DOI: 10.1007/978-3-662-45756-6_1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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15
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Zhang P, Zhang L, Wang H, Zhang DW, Li ZT. Helical folding of an arylamide polymer in water and organic solvents of varying polarity. Polym Chem 2015. [DOI: 10.1039/c5py00096c] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An arylamide polymer is driven by the solvophobicity and hydrogen bonding to form helical conformation in solvents of different polarity.
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Affiliation(s)
- Peng Zhang
- Department of Chemistry
- Collaborative Innovation Center of Chemistry for Energy Materials (iChEM)
- Fudan University
- Shanghai 200433
- China
| | - Liang Zhang
- Department of Chemistry
- Collaborative Innovation Center of Chemistry for Energy Materials (iChEM)
- Fudan University
- Shanghai 200433
- China
| | - Hui Wang
- Department of Chemistry
- Collaborative Innovation Center of Chemistry for Energy Materials (iChEM)
- Fudan University
- Shanghai 200433
- China
| | - Dan-Wei Zhang
- Department of Chemistry
- Collaborative Innovation Center of Chemistry for Energy Materials (iChEM)
- Fudan University
- Shanghai 200433
- China
| | - Zhan-Ting Li
- Department of Chemistry
- Collaborative Innovation Center of Chemistry for Energy Materials (iChEM)
- Fudan University
- Shanghai 200433
- China
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16
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Hydrogen-Bonding-Driven Aromatic Foldamers: Their Structural and Functional Evolution. CHEM REC 2014; 15:233-51. [DOI: 10.1002/tcr.201402046] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2014] [Indexed: 12/16/2022]
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17
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Zhang DW, Zhao X, Li ZT. Aromatic amide and hydrazide foldamer-based responsive host-guest systems. Acc Chem Res 2014; 47:1961-70. [PMID: 24673152 DOI: 10.1021/ar5000242] [Citation(s) in RCA: 138] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
CONSPECTUS: In host-guest chemistry, a larger host molecule selectively and noncovalently binds to a smaller guest molecule or ion. Early studies of host-guest chemistry focused on the recognition of spherical metal or ammonium ions by macrocyclic hosts, such as cyclic crown ethers. In these systems, preorganization enables their binding sites to cooperatively contact and attract a guest. Although some open-chain crown ether analogues possess similar, but generally lower, binding affinities, the design of acyclic molecular recognition hosts has remained challenging. One of the most successful examples was rigid molecular tweezers, acyclic covalently bonded preorganized host molecules with open cavities that bind tightly as they stiffen. Depending on the length of the atomic backbones, hydrogen bonding-driven aromatic amide foldamers can form open or closed cavities. Through rational design of the backbones and the introduction of added functional groups, researchers can regulate the shape and size of the cavity. The directionality of hydrogen bonding and the inherent rigidity of aromatic amide units allow researchers to predict both the shape and size of the cavity of an aromatic amide foldamer. Therefore, researchers can then design guest molecules with structure that matches the cavity shape, size, and binding sites of the foldamer host. In addition, because hydrogen bonds are dynamic, researchers can design structures that can adapt to outside stimuli to produce responsive supramolecular architectures. In this Account, we discuss how aromatic amide and hydrazide foldamers induced by hydrogen bonding can produce responsive host-guest systems, based on research by our group and others. First we highlight the helical chirality induced as binding occurs in solution, which includes the induction of helicity by chiral guests in oligomeric and polymeric foldamers, the formation of diastereomeric complexes between chiral foldamer hosts and guests, and the induction of helical chirality by chiral guests into inherently flexible backbones. In addition, molecular or ion-pair guests can produce supramolecular helical chirality in the organogel state. Such structures exhibit remarkable time-dependence and a "Sergeants and Soldiers" effect that are not observed for other two-component organogels that have been reported. We further illustrate that the reversible folding behavior of an aromatic amide foldamer segment can modulate the switching behavior of donor-acceptor interaction-based [2]rotaxanes. Finally we show that a folded oligomer can induce folding in one or two attached intrinsically flexible oligomers, an example of a solvent-responsive intramolecular host-guest system.
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Affiliation(s)
- Dan-Wei Zhang
- Department
of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, China
| | - Xin Zhao
- Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
| | - Zhan-Ting Li
- Department
of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, China
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18
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Sebaoun L, Maurizot V, Granier T, Kauffmann B, Huc I. Aromatic Oligoamide β-Sheet Foldamers. J Am Chem Soc 2014; 136:2168-74. [DOI: 10.1021/ja412729s] [Citation(s) in RCA: 74] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Laure Sebaoun
- Université de Bordeaux, CBMN (UMR 5248), Institut Européen
de Chimie Biologie, 2 rue Escarpit, 33600 Pessac, France
- CNRS, CBMN
(UMR 5248), France
| | - Victor Maurizot
- Université de Bordeaux, CBMN (UMR 5248), Institut Européen
de Chimie Biologie, 2 rue Escarpit, 33600 Pessac, France
- CNRS, CBMN
(UMR 5248), France
| | - Thierry Granier
- Université de Bordeaux, CBMN (UMR 5248), Institut Européen
de Chimie Biologie, 2 rue Escarpit, 33600 Pessac, France
- CNRS, CBMN
(UMR 5248), France
| | - Brice Kauffmann
- Université de Bordeaux, Institut Européen de Chimie Biologie
(UMS 3033/US 001), 2 rue Escarpit, 33600 Pessac, France
- CNRS, Institut
Européen de Chimie Biologie (UMS 3033), 33600 Pessac, France
- INSERM, Institut Européen de Chimie Biologie (US 001), 33600 Pessac,
France
| | - Ivan Huc
- Université de Bordeaux, CBMN (UMR 5248), Institut Européen
de Chimie Biologie, 2 rue Escarpit, 33600 Pessac, France
- CNRS, CBMN
(UMR 5248), France
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