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Ribeiro C, Cariello M, Malfait A, Bria M, Fournier D, Lyskawa J, Le Fer G, Potier J, Hoogenboom R, Cooke G, Woisel P. Synergistic topological and supramolecular control of Diels-Alder reactivity based on a tunable self-complexing host-guest molecular switch. Chemistry 2024; 30:e202302300. [PMID: 37991250 DOI: 10.1002/chem.202302300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Revised: 11/17/2023] [Accepted: 11/21/2023] [Indexed: 11/23/2023]
Abstract
Compartmentalization and binding-triggered conformational change regulate many metabolic processes in living matter. Here, we have synergistically combined these two biorelevant processes to tune the Diels-Alder (DA) reactivity of a synthetic self-complexing host-guest molecular switch CBPQT4+ -Fu, consisting of an electron-rich furan unit covalently attached to the electron-deficient cyclobis(paraquat-p-phenylene) tetrachloride (CBPQT4+ , 4Cl- ) host. This design allows CBPQT4+ -Fu to efficiently compartmentalize the furan ring inside its host cavity in water, thereby protecting it from the DA reaction with maleimide. Remarkably, the self-complexed CBPQT4+ -Fu can undergo a conformational change through intramolecular decomplexation upon the addition of a stronger binding molecular naphthalene derivative as a competitive guest, triggering the DA reaction upon addition of a chemical regulator. Remarkably, connecting the guest to a thermoresponsive lower critical solution temperature (LCST) copolymer regulator controls the DA reaction on command upon heating and cooling the reaction media beyond and below the cloud point temperature of the copolymer, representing a rare example of decreased reactivity upon increasing temperature. Altogether, this work opens up new avenues towards combined topological and supramolecular control over reactivity in synthetic constructs, enabling control over reactivity through molecular regulators or even mild temperature variations.
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Affiliation(s)
- Cédric Ribeiro
- Univ. Lille, CNRS, NRAE, Centrale Lille, UMR 8207 - UMET -, Unité Matériaux et Transformations, F-59000, Lille, France
| | - Michele Cariello
- School of Chemistry, University of Glasgow, Glasgow, G12 8QQ, United Kingdom
| | - Aurélie Malfait
- Univ. Lille, CNRS, NRAE, Centrale Lille, UMR 8207 - UMET -, Unité Matériaux et Transformations, F-59000, Lille, France
| | - Marc Bria
- Univ. Lille, CNRS, NRAE, Centrale Lille, UMR 8207 - UMET -, Unité Matériaux et Transformations, F-59000, Lille, France
| | - David Fournier
- Univ. Lille, CNRS, NRAE, Centrale Lille, UMR 8207 - UMET -, Unité Matériaux et Transformations, F-59000, Lille, France
| | - Joël Lyskawa
- Univ. Lille, CNRS, NRAE, Centrale Lille, UMR 8207 - UMET -, Unité Matériaux et Transformations, F-59000, Lille, France
| | - Gaëlle Le Fer
- Univ. Lille, CNRS, NRAE, Centrale Lille, UMR 8207 - UMET -, Unité Matériaux et Transformations, F-59000, Lille, France
| | - Jonathan Potier
- Univ. Lille, CNRS, NRAE, Centrale Lille, UMR 8207 - UMET -, Unité Matériaux et Transformations, F-59000, Lille, France
| | - Richard Hoogenboom
- Supramolecular Chemistry Group, Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 S4-bis, 9000, Ghent, Belgium
| | - Graeme Cooke
- School of Chemistry, University of Glasgow, Glasgow, G12 8QQ, United Kingdom
| | - Patrice Woisel
- Univ. Lille, CNRS, NRAE, Centrale Lille, UMR 8207 - UMET -, Unité Matériaux et Transformations, F-59000, Lille, France
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2
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Li S, Chen H, Liu X, Li P, Wu W. Nanocellulose as a promising substrate for advanced sensors and their applications. Int J Biol Macromol 2022; 218:473-487. [PMID: 35870627 DOI: 10.1016/j.ijbiomac.2022.07.124] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 07/14/2022] [Accepted: 07/17/2022] [Indexed: 01/14/2023]
Abstract
Nanocellulose has broad and promising applications owing to its low density, large specific surface area, high mechanical strength, modifiability, renewability. Recently, nanocellulose has been widely used to fabricate flexible, durable and environmental-friendly sensor substrates. In this contribution, the construction and characteristics of nanocellulose-based sensors are comprehensively reviewed. Various nanocellulose-based sensors are summarized and divided into colorimetric, fluorescent, electronic, electrochemical and SERS types according to the sensing mechanism. This review also introduces the applications of nanocellulose-based sensors in the fields of biomedicine, environmental monitoring, food safety, and wearable devices.
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Affiliation(s)
- Sijie Li
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Haibo Chen
- School of Electronic and Information Engineering, Soochow University, Suzhou 215000, Jiangsu, China
| | - Xingyue Liu
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Peng Li
- School of Electronic and Information Engineering, Soochow University, Suzhou 215000, Jiangsu, China.
| | - Weibing Wu
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210037, China.
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3
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Hechenbichler M, Prause A, Gradzielski M, Laschewsky A. Thermoresponsive Self-Assembly of Twofold Fluorescently Labeled Block Copolymers in Aqueous Solution and Microemulsions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:5166-5182. [PMID: 34734729 DOI: 10.1021/acs.langmuir.1c02318] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
A nonionic double hydrophilic block copolymer with a long permanently hydrophilic and a small thermoresponsive block is synthesized by reversible addition-fragmentation chain-transfer polymerization (RAFT). By employing a specifically designed chain-transfer agent, the polymer is functionalized with complementary end groups which are suited for Förster resonance energy transfer (FRET). The end group attached to the permanently hydrophilic block of poly(N,N-dimethylacrylamide) pDMAm is designed as a permanently hydrophobic segment ("sticker") comprising a long alkyl chain and the 4-aminonaphthalimide fluorophore. The other end attached to the thermoresponsive block of poly(N-isopropylacrylamide) pNiPAm incorporates a coumarin fluorophore. The temperature-dependent self-assembly of the twofold fluorescently labeled copolymer is studied in pure aqueous solution as well as in an o/w microemulsion by several techniques including turbidimetry, dynamic light scattering (DLS), and fluorescence spectroscopy. It is compared to the behaviors of the analogous twofold-labeled pDMAm and pNiPAm homopolymer references. The findings indicate that the block copolymer behaves as a polymeric surfactant at low temperatures, with one relatively small hydrophobic end block and an extended hydrophilic chain forming "hairy micelles". At elevated temperatures above the LCST phase transition of the pNiPAm block, however, the copolymer behaves as an associative telechelic polymer with two nonsymmetrical hydrophobic end blocks, which do not mix. Thus, instead of a network of bridged "flower micelles", large dynamic aggregates are formed. These are connected alternatingly by the original micellar cores as well as by clusters of the collapsed pNiPAm blocks. This type of structure is even more favored in the o/w microemulsion than in pure aqueous solution, as the microemulsion droplets constitute an attractive anchoring point for the hydrophobic dodecyl sticker but not for the collapsed pNiPAm chains.
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Affiliation(s)
- Michelle Hechenbichler
- Institut für Chemie, Universität Potsdam, Karl-Liebknecht-Straße 24-25, 14476 Potsdam-Golm, Germany
| | - Albert Prause
- Stranski-Laboratorium für Physikalische und Theoretische Chemie, FG Physical Chemistry/Molecular Material Science Institute of Chemistry, Technische Universität Berlin, Straße des 17 Juni 124, 10623 Berlin, Germany
| | - Michael Gradzielski
- Stranski-Laboratorium für Physikalische und Theoretische Chemie, FG Physical Chemistry/Molecular Material Science Institute of Chemistry, Technische Universität Berlin, Straße des 17 Juni 124, 10623 Berlin, Germany
| | - André Laschewsky
- Institut für Chemie, Universität Potsdam, Karl-Liebknecht-Straße 24-25, 14476 Potsdam-Golm, Germany
- Fraunhofer Institute of Applied Polymer Research IAP, Fraunhofer Institute, Geiselbergstr. 69, 14476 Potsdam-Golm, Germany
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4
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Witt MU, Landers J, Hinrichs S, Salamon S, Kopp J, Hankiewicz B, Wende H, von Klitzing R. Magnetic response of CoFe 2O 4 nanoparticles confined in a PNIPAM microgel network. SOFT MATTER 2022; 18:1089-1099. [PMID: 35037679 DOI: 10.1039/d1sm01597d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The paper addresses coupling of magnetic nanoparticles (MNPs) with the polymer matrix of temperature-sensitive microgels and their response to magnetic fields. Therefore, CoFe2O4@CA (CA = citric acid) NPs are embedded within N-isopropylacrylamid (NIPAM) based microgels. The volume phase transition (VPT) of the magnetic microgels and the respective pure microgels is studied by dynamic light scattering and electrophoretic mobility measurements. The interaction between MNPs and microgel network is studied via magnetometry and AC-susceptometry using a superconducting quantum interference device (SQUID). The data show a significant change of the magnetic properties by crossing the VPT temperature (VPTT). The change is related to the increased confinement of the MNP due to the shrinking of the microgels. Modifying the microgel with hydrophobic allyl mercaptan (AM) affects the swelling ability and the magnetic response, i.e. the coupling of MNPs with the polymer matrix. Modeling the AC-susceptibility data results in an effective size distribution. This distribution represents the varying degree of constraint in MNP rotation and motion by the microgel network. These findings help to understand the interaction between MNPs and the microgel matrix to design multi responsive systems with tunable particle matrix coupling strength for future applications.
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Affiliation(s)
- Marcus U Witt
- Department of Physics, Soft Matter at Interfaces, Technical University Darmstadt, Hochschulstraße 8, 64287 Darmstadt, Germany.
| | - Joachim Landers
- Faculty of Physics and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, Lotharstr. 1, 47057 Duisburg, Germany
| | - Stephan Hinrichs
- Institute of Physical Chemistry, Hamburg University, Grindelallee 117, 20146 Hamburg, Germany
| | - Soma Salamon
- Faculty of Physics and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, Lotharstr. 1, 47057 Duisburg, Germany
| | - Juri Kopp
- Faculty of Physics and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, Lotharstr. 1, 47057 Duisburg, Germany
| | - Birgit Hankiewicz
- Institute of Physical Chemistry, Hamburg University, Grindelallee 117, 20146 Hamburg, Germany
| | - Heiko Wende
- Faculty of Physics and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, Lotharstr. 1, 47057 Duisburg, Germany
| | - Regine von Klitzing
- Department of Physics, Soft Matter at Interfaces, Technical University Darmstadt, Hochschulstraße 8, 64287 Darmstadt, Germany.
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5
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Jaik TG, Ciubini B, Frascella F, Jonas U. Thermal Response and Thermochromism of Methyl Red-Based Copolymer Systems - Coupled Responsiveness in Critical Solution Behaviour and Optical Absorption Properties. Polym Chem 2022. [DOI: 10.1039/d1py01361k] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Until now, only limited experimental knowledge and sparse theoretical treatment about the mechanisms of thermochromism of azo dyes in solution has been available. Especially the coupling of thermoresponsiveness of polymers...
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6
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Guo H, Le Fer G, Tran TN, Malfait A, Hourdet D, Marcellan A, Stoffelbach F, Lyskawa J, Hoogenboom R, Woisel P. Mechanism insights in controlling host–guest (de)complexation by thermoresponsive polymer phase transitions. Polym Chem 2022. [DOI: 10.1039/d2py00219a] [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 hydrophobic interactions involved in phase separation of LCST polymers are the critical factor inducing the BBox release from the BBox/naphthalene while the host-guest complexes remain stable during phase separation of UCST polymers upon cooling.
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Affiliation(s)
- Hui Guo
- School of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, China
- Soft Matter Sciences and Engineering, ESPCI Paris, PSL University, Sorbonne University, CNRS, F-75005 Paris, France
| | - Gaëlle Le Fer
- Univ. Lille, CNRS, INRAE, Centrale Lille, UMR 8207 - UMET - Unité Matériaux et Transformations, F-59000 Lille, France
| | - Thi Nga Tran
- Soft Matter Sciences and Engineering, ESPCI Paris, PSL University, Sorbonne University, CNRS, F-75005 Paris, France
| | - Aurélie Malfait
- Univ. Lille, CNRS, INRAE, Centrale Lille, UMR 8207 - UMET - Unité Matériaux et Transformations, F-59000 Lille, France
| | - Dominique Hourdet
- Soft Matter Sciences and Engineering, ESPCI Paris, PSL University, Sorbonne University, CNRS, F-75005 Paris, France
| | - Alba Marcellan
- Soft Matter Sciences and Engineering, ESPCI Paris, PSL University, Sorbonne University, CNRS, F-75005 Paris, France
| | - François Stoffelbach
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, UMR 8232, Equipe Chimie des Polymères, F-75252 Paris Cedex 05, France
| | - Joël Lyskawa
- Univ. Lille, CNRS, INRAE, Centrale Lille, UMR 8207 - UMET - Unité Matériaux et Transformations, F-59000 Lille, France
| | - Richard Hoogenboom
- Supramolecular Chemistry Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 S4-bis, 9000 Ghent, Belgium
| | - Patrice Woisel
- Univ. Lille, CNRS, INRAE, Centrale Lille, UMR 8207 - UMET - Unité Matériaux et Transformations, F-59000 Lille, France
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7
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Gayathri V, Jaisankar SN, Samanta D. Temperature and pH responsive polymers: sensing applications. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2021. [DOI: 10.1080/10601325.2021.1988636] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Varnakumar Gayathri
- Polymer Science & Technology division, CSIR-Central Leather Research Institute, Chennai, India
- Academy of Scientific and Innovative Research, Ghaziabad, Uttar Pradesh, India
| | - Sellamuthu Nagappan Jaisankar
- Polymer Science & Technology division, CSIR-Central Leather Research Institute, Chennai, India
- Academy of Scientific and Innovative Research, Ghaziabad, Uttar Pradesh, India
| | - Debasis Samanta
- Polymer Science & Technology division, CSIR-Central Leather Research Institute, Chennai, India
- Academy of Scientific and Innovative Research, Ghaziabad, Uttar Pradesh, India
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8
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Wang C, Li P, Zhang S, Zhang G, Tan S, Wu Y, Watanabe M. Azobenzene Molecular Trigger Controlling Phase Transitions of PNIPAm in Ionic Liquids and Light-Controlled Adhesiveness. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c00652] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Caihong Wang
- School of Chemical Engineering, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, China
| | - Peiqi Li
- School of Chemical Engineering, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, China
| | - Shiguo Zhang
- College of Materials Science and Engineering, Hunan University, No. 2 Lushan Road (S), Yuelu District, Changsha 410082, China
| | - Guoqiang Zhang
- Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, Ohio 44106-7202, United States
| | - Shuai Tan
- School of Chemical Engineering, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, China
| | - Yong Wu
- School of Chemical Engineering, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, China
| | - Masayoshi Watanabe
- Department of Chemistry and Biotechnology, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan
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9
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Jensen M, Olsen G, Kristensen R, Takimiya K, Jeppesen JO. Naphtho[1,2- b
:5,6- b
′]dithiophene Building Blocks and their Complexation with Cyclobis(paraquat- p
-phenylene). European J Org Chem 2019. [DOI: 10.1002/ejoc.201901161] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Morten Jensen
- Department of Physics, Chemistry, and Pharmacy; University of Southern Denmark; Campusvej 55 5230 Odense M Denmark
| | - Gunnar Olsen
- Department of Physics, Chemistry, and Pharmacy; University of Southern Denmark; Campusvej 55 5230 Odense M Denmark
| | - Rikke Kristensen
- Department of Physics, Chemistry, and Pharmacy; University of Southern Denmark; Campusvej 55 5230 Odense M Denmark
| | - Kazuo Takimiya
- Emergent Molecular Function Group; RIKEN Center for Emergent Matter Science (CEMS); 2-1 Hirosawa Saitama 351-0198 Wako Japan
- Department of Chemistry; Graduate School of Science; Tohoku University; 6-3 Aoba Miyagi 980-8578 Sendai Japan
| | - Jan O. Jeppesen
- Department of Physics, Chemistry, and Pharmacy; University of Southern Denmark; Campusvej 55 5230 Odense M Denmark
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10
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Dong Q, Sun C, Chen F, Yang Z, Li R, Wang C, Luo C. Influence of Cyclodextrins on Thermosensitive and Fluorescent Properties of Pyrenyl-Containing PDMAA. Polymers (Basel) 2019; 11:E1569. [PMID: 31561626 PMCID: PMC6835872 DOI: 10.3390/polym11101569] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2019] [Revised: 09/22/2019] [Accepted: 09/23/2019] [Indexed: 11/17/2022] Open
Abstract
A series of pyrenyl-containing PDMAA copolymers were prepared by free radical copolymerization of dimethylacrylamide (DMAA) with pyrenebutanoyloxy ethyl methacrylate (PyBEMA). The structure of as-prepared copolymers was characterized by UV, FT-IR and 1H NMR spectroscopy. The effect of cyclodextrins (α-CD, β-CD and γ-CD) on the thermosensitivity and fluorescence of the copolymers in aqueous solutions were investigated. It was found that the as-prepared copolymers exhibit lower critical solution temperature (LCST)-type thermosensitivity. Cloud point (Tcp) decreases with the increasing molar content of PyBEMA unit in the copolymers. Tcp of the copolymers increases after the CD is added from half molar to equivalent amount relative to pyrenyl moiety, and that further adding twice equivalent CD results in a slight decrease in Tcp. The copolymers exhibit a pyrene emission located at 377 nm and a broad excimer emission centered at 470 nm. The copolymers in water present a stronger excimer emission (Intensity IE) relative to monomer emission (Intensity IM) than that in ethanol. The IE/IM values decrease after the addition of equivalent α-CD, β-CD and γ-CD into the copolymers in aqueous solution, respectively. The IE/IM values abruptly increase as the copolymers' concentration is over 0.2 mg/L whether in ethanol solution or aqueous solution with or without CD, from which can probably be inferred that intra-polymeric pyrene aggregates dominate for solution concentration below 0.2 mg/L and inter-polymeric pyrene aggregates dominate over 0.2 mg/L. Furthermore, the formation of the CD pseudopolyrotaxanes makes it possible to form pyrene aggregates. For high concentration of 5 g/L, the copolymers and their inclusion complexes completely exhibit an excimer emission. The IE values abruptly increased as the temperature went up to Tcp, which indicates that the IE values can be used to research phase separation of polymers.
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Affiliation(s)
- Qiujing Dong
- School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang 236037, China.
- Anhui Provincial Key Laboratory for Degradation and Monitoring of the Pollution of the Environment, Fuyang 236037, China.
- State Key Laboratory of Molecular Engineering of Polymers (Fudan University), Shanghai 200433, China.
| | - Changrui Sun
- School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang 236037, China.
- Anhui Provincial Key Laboratory for Degradation and Monitoring of the Pollution of the Environment, Fuyang 236037, China.
| | - Fangyuan Chen
- School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang 236037, China.
- Anhui Provincial Key Laboratory for Degradation and Monitoring of the Pollution of the Environment, Fuyang 236037, China.
| | - Zheng Yang
- School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang 236037, China.
- Anhui Provincial Key Laboratory for Degradation and Monitoring of the Pollution of the Environment, Fuyang 236037, China.
| | - Ruiqian Li
- School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang 236037, China.
- Anhui Provincial Key Laboratory for Degradation and Monitoring of the Pollution of the Environment, Fuyang 236037, China.
| | - Chang Wang
- School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang 236037, China.
- Anhui Provincial Key Laboratory for Degradation and Monitoring of the Pollution of the Environment, Fuyang 236037, China.
| | - Chunhua Luo
- School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang 236037, China.
- Anhui Provincial Key Laboratory for Degradation and Monitoring of the Pollution of the Environment, Fuyang 236037, China.
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11
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Baranowska-Korczyc A, Stelmach E, Paterczyk B, Maksymiuk K, Michalska A. Ultrasmall self-assembly poly(N-isopropylacrylamide-butyl acrylate) (polyNIPAM-BA) thermoresponsive nanoparticles. J Colloid Interface Sci 2019; 542:317-324. [DOI: 10.1016/j.jcis.2019.02.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 01/31/2019] [Accepted: 02/01/2019] [Indexed: 12/27/2022]
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12
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A lysosome-targeting nanosensor for simultaneous fluorometric imaging of intracellular pH values and temperature. Mikrochim Acta 2018; 185:533. [DOI: 10.1007/s00604-018-3040-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Accepted: 10/01/2018] [Indexed: 12/18/2022]
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13
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Verma M, Kaur A, Kaur H, Kaur N, Singh N. Selective Determination of Silver Metal Ion Using Polyamine‐Based Ratiometric Chemosensor in an Aqueous Medium and Its Real‐Time Applicability as a Silver Sink. ChemistrySelect 2018. [DOI: 10.1002/slct.201702540] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Meenakshi Verma
- Department of ChemistryIndian Institute of Technology Ropar, Rupanagar Punjab India
| | - Amanpreet Kaur
- Department of ChemistryPanjab University Chandigarh-160014 India
| | - Harpreet Kaur
- Department of ChemistryPanjab University Chandigarh-160014 India
| | - Navneet Kaur
- Department of ChemistryPanjab University Chandigarh-160014 India
| | - Narinder Singh
- Department of ChemistryIndian Institute of Technology Ropar, Rupanagar Punjab India
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14
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Yuan W, Wang C, Lei S, Chen J, Lei S, Li Z. Ultraviolet light-, temperature- and pH-responsive fluorescent sensors based on cellulose nanocrystals. Polym Chem 2018. [DOI: 10.1039/c8py00613j] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Intelligent CNC-g-P(AzoC6MA-co-DMAEMA) fluorescent nanosensors present ultraviolet light-, temperature- and pH-responsive properties.
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Affiliation(s)
- Weizhong Yuan
- School of Materials Science and Engineering
- Tongji University
- Shanghai 201804
- P. R. China
| | - Chunyao Wang
- School of Materials Science and Engineering
- Tongji University
- Shanghai 201804
- P. R. China
| | - Shize Lei
- Central South University
- Changsha 410083
- P. R. China
| | - Jiangdi Chen
- School of Materials Science and Engineering
- Tongji University
- Shanghai 201804
- P. R. China
| | - Shaorong Lei
- Department of Plastic Surgery
- Xiangya Hospital
- Central South University
- Changsha 410008
- P. R. China
| | - Zhihong Li
- Division of General Surgery
- Shanghai Pudong New District Zhoupu Hospital
- Shanghai 201200
- P. R. China
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15
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Fumagalli M, Belal K, Guo H, Stoffelbach F, Cooke G, Marcellan A, Woisel P, Hourdet D. Supramolecular polymer hydrogels induced by host-guest interactions with di-[cyclobis(paraquat-p-phenylene)] cross-linkers: from molecular complexation to viscoelastic properties. SOFT MATTER 2017; 13:5269-5282. [PMID: 28676876 DOI: 10.1039/c7sm01051f] [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
Supramolecular polymer networks have been designed on the basis of a π-electron donor/acceptor complex: naphthalene (N)/cyclobis(paraquat-p-phenylene) (CBPQT4+ = B). For this purpose, a copolymer of N,N-dimethylacrylamide P(DMA-N1), lightly decorated with 1 mol% of naphthalene pendant groups, has been studied in semi-dilute un-entangled solution in the presence of di-CBPQT4+ (BB) crosslinker type molecules. While calorimetric experiments demonstrate the quantitative binding between N and B groups up to 60 °C, the introduction of BB crosslinkers into the polymer solution gives rise to gel formation above the overlap concentration. From a comprehensive investigation of viscoelastic properties, performed at different concentrations, host/guest stoichiometric ratios and temperatures, the supramolecular hydrogels are shown to follow a Maxwellian behavior with a strong correlation of the plateau modulus and the relaxation time with the effective amount of interchain cross-linkers and their dissociation dynamics, respectively. The calculation of the dissociation rate constant of the supramolecular complex, by extrapolation of the relaxation time of the network back to the beginning of the gel regime, is discussed in the framework of theoretical and experimental works on associating polymers.
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Affiliation(s)
- Matthieu Fumagalli
- Laboratoire Sciences et Ingénierie de la Matière Molle, CNRS, ESPCI Paris, PSL Research University, 10 rue Vauquelin, F-75005 Paris, France.
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Enzenberg A, Laschewsky A, Boeffel C, Wischerhoff E. Influence of the Near Molecular Vicinity on the Temperature Regulated Fluorescence Response of Poly(N-vinylcaprolactam). Polymers (Basel) 2016; 8:E109. [PMID: 30979200 PMCID: PMC6431908 DOI: 10.3390/polym8040109] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Revised: 02/04/2016] [Accepted: 03/17/2016] [Indexed: 12/25/2022] Open
Abstract
A series of new fluorescent dye bearing monomers, including glycomonomers, based on maleamide and maleic esteramide was synthesized. The dye monomers were incorporated by radical copolymerization into thermo-responsive poly(N‑vinyl-caprolactam) that displays a lower critical solution temperature (LCST) in aqueous solution. The effects of the local molecular environment on the polymers' luminescence, in particular on the fluorescence intensity and the extent of solvatochromism, were investigated below as well as above the phase transition. By attaching substituents of varying size and polarity in the close vicinity of the fluorophore, and by varying the spacer groups connecting the dyes to the polymer backbone, we explored the underlying structure⁻property relationships, in order to establish rules for successful sensor designs, e.g., for molecular thermometers. Most importantly, spacer groups of sufficient length separating the fluorophore from the polymer backbone proved to be crucial for obtaining pronounced temperature regulated fluorescence responses.
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Affiliation(s)
- Anne Enzenberg
- Institute of Chemistry, University of Potsdam, Karl-Liebknecht-Str. 24-25, Potsdam-Golm D-14476, Germany.
| | - André Laschewsky
- Institute of Chemistry, University of Potsdam, Karl-Liebknecht-Str. 24-25, Potsdam-Golm D-14476, Germany.
- Fraunhofer Institute of Applied Polymer Research IAP, Geiselberg-Str. 69, Potsdam-Golm D-14476, Germany.
| | - Christine Boeffel
- Fraunhofer Institute of Applied Polymer Research IAP, Geiselberg-Str. 69, Potsdam-Golm D-14476, Germany.
| | - Erik Wischerhoff
- Fraunhofer Institute of Applied Polymer Research IAP, Geiselberg-Str. 69, Potsdam-Golm D-14476, Germany.
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17
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Yi XQ, Zhang Q, Zhao D, Xu JQ, Zhong ZL, Zhuo RX, Li F. Preparation of pH and redox dual-sensitive core crosslinked micelles for overcoming drug resistance of DOX. Polym Chem 2016. [DOI: 10.1039/c5py01783a] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
When incubating the pH and redox dual-sensitive CCL/SS micelles with MCF-7/ADR cells, they could sufficiently overcome drug resistance to deliver DOX into MCF-7/ADR cells, leading to the apoptosis of tumor cells.
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Affiliation(s)
- Xiao-Qing Yi
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry
- Wuhan University
- Wuhan 430072
- P. R. China
| | - Quan Zhang
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry
- Wuhan University
- Wuhan 430072
- P. R. China
| | - Dan Zhao
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry
- Wuhan University
- Wuhan 430072
- P. R. China
| | - Jia-Qi Xu
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry
- Wuhan University
- Wuhan 430072
- P. R. China
| | - Zhen-Lin Zhong
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry
- Wuhan University
- Wuhan 430072
- P. R. China
| | - Ren-Xi Zhuo
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry
- Wuhan University
- Wuhan 430072
- P. R. China
| | - Feng Li
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry
- Wuhan University
- Wuhan 430072
- P. R. China
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18
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Denisov SA, Pinaud F, Chambaud M, Lapeyre V, Catargi B, Sojic N, McClenaghan ND, Ravaine V. Saccharide-induced modulation of photoluminescence lifetime in microgels. Phys Chem Chem Phys 2016; 18:16812-21. [DOI: 10.1039/c6cp01523a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Sugar-responsive microgels based on boronic acid derivative and incorporating [Ru(bpy)3]2+ as a luminescent reporter, exhibit very long lifetimes and unusually high quantum yields, which decrease upon saccharide addition.
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Affiliation(s)
- S. A. Denisov
- University of Bordeaux
- Bordeaux INP
- Institut des Sciences Moléculaires
- 33607 Pessac
- France
| | - F. Pinaud
- University of Bordeaux
- Bordeaux INP
- Institut des Sciences Moléculaires
- 33607 Pessac
- France
| | - M. Chambaud
- University of Bordeaux
- Bordeaux INP
- Institut des Sciences Moléculaires
- 33607 Pessac
- France
| | - V. Lapeyre
- University of Bordeaux
- Bordeaux INP
- Institut des Sciences Moléculaires
- 33607 Pessac
- France
| | - B. Catargi
- University of Bordeaux
- CBMN Department
- Pessac
- France
| | - N. Sojic
- University of Bordeaux
- Bordeaux INP
- Institut des Sciences Moléculaires
- 33607 Pessac
- France
| | - N. D. McClenaghan
- University of Bordeaux
- Bordeaux INP
- Institut des Sciences Moléculaires
- 33607 Pessac
- France
| | - V. Ravaine
- University of Bordeaux
- Bordeaux INP
- Institut des Sciences Moléculaires
- 33607 Pessac
- France
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