1
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Panjacharam P, Ulabala V, Jayakumar J, Rajasekhara Reddy S. Emerging trends in the sustainable synthesis of N-N bond bearing organic scaffolds. Org Biomol Chem 2023; 21:2632-2652. [PMID: 36883312 DOI: 10.1039/d3ob00300k] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2023]
Abstract
N-N bond bearing organic frameworks such as azos, hydrazines, indazoles, triazoles and their structural moieties have piqued the interest of organic chemists due to the intrinsic nitrogen electronegativity. Recent methodologies with atom efficacy and a greener approach have overcome the synthetic obstacles of N-N bond construction from N-H. As a result, a wide range of amine oxidation methods have been reported early on. This review's vision emphasizes the emerging methods of N-N bond formation, particularly photo, electro, organo and transition metal free chemical methods.
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Affiliation(s)
| | - Vijayasree Ulabala
- Department of Chemistry, Rajiv Gandhi University of Knowledge Technology (RGUKT), Nuzvid 521202, India.
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2
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Cai X, Shen Y, Li W, Zhan W, Zhang F, Xu C, Song H. Low-Valent Tungsten-Catalyzed Controllable Oxidative Dehydrogenative Coupling of Anilines. Org Lett 2023; 25:240-245. [PMID: 36573686 DOI: 10.1021/acs.orglett.2c04090] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Herein, we have developed an efficient tungsten-catalyzed homogeneous system for oxidative dehydrogenative coupling of anilines to selectively produce various azoaromatics and azoxyaromatics as well as 2-substituted indolone N-oxides by simply regulating the reaction solvent with peroxide as a terminal oxidant under additive-free conditions. These findings provide an experimental framework for exploring tungsten catalysis in organic synthesis and offer an efficient and convenient tactic for the selective oxidation of anilines.
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Affiliation(s)
- Xingwei Cai
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212003, People's Republic of China
| | - Yang Shen
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212003, People's Republic of China
| | - Wei Li
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212003, People's Republic of China
| | - Wentao Zhan
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212003, People's Republic of China
| | - Fanjun Zhang
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273100, People's Republic of China
| | - Chen Xu
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212003, People's Republic of China
| | - Heng Song
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212003, People's Republic of China.,Jiangsu Agrochem Laboratory Company, Limited, Changzhou, Jiangsu 213000, People's Republic of China
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3
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Controlled drug delivery mediated by cyclodextrin-based supramolecular self-assembled carriers: From design to clinical performances. CARBOHYDRATE POLYMER TECHNOLOGIES AND APPLICATIONS 2022. [DOI: 10.1016/j.carpta.2022.100266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
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4
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Wang H, Bisoyi H, Zhang X, Hassan F, Li Q. Visible Light-Driven Molecular Switches and Motors: Recent Developments and Applications. Chemistry 2021; 28:e202103906. [PMID: 34964995 DOI: 10.1002/chem.202103906] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Indexed: 11/09/2022]
Abstract
Inspired by human vision, a diverse range of light-driven molecular switches and motors has been developed for fundamental understanding and application in material science and biology. Recently, the design and synthesis of visible light-driven molecular switches and motors have been actively pursued. This emerging trend is partly motivated to avoid the harmful effects of ultraviolet light, which was necessary to drive the classical molecular switches and motors at least in one direction, impeding their employment in biomedical and photopharmacology applications. Moreover, visible light-driven molecular switches and motors are demonstrated to enable benign optical materials for advanced photonic devices. Therefore, during the past several years, visible light-driven molecular switches based on azobenzene derivatives, diarylethenes, 1,2-dicyanodithienylethenes, hemithioindigo derivatives, iminothioindoxyls, donor-acceptor Stenhouse adducts, and overcrowded alkene based molecular motors have been judiciously designed, synthesized, and used in the development of functional materials and systems for a wide range of applications. In this Review, we present the recent developments toward the design of visible light-driven molecular switches and motors, with their applications in the fabrication of functional materials and systems in material science, bioscience, pharmacology, etc . The visible light-driven molecular switches and motors realized so far undoubtedly widen the scope of these interesting compounds for technological and biological applications. We hope this Review article could provide additional impetus and inspire further research interests for future exploration of visible light-driven advanced materials, systems, and devices.
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Affiliation(s)
- Hao Wang
- Kent State University, Advanced Materials and Liquid Crystal Institute, UNITED STATES
| | - Hari Bisoyi
- Kent State University, Advanced Materials and Liquid Crystal Institute, UNITED STATES
| | - Xinfang Zhang
- Kent State University, Advanced Materials and Liquid Crystal Institue, UNITED STATES
| | - Fathy Hassan
- Kent State University, Advanced Materials and Liquid Crystal Institute, UNITED STATES
| | - Quan Li
- Kent State University, Liquid Crystal Institute and Chemical Physics Interdiscinplary Program, 3273 Crown Pointe Drive, 44224, Stow, UNITED STATES
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5
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Suárez-Cruz A, Molina-Pinilla I, Hakkou K, Rangel-Núñez C, Bueno-Martínez M. Novel poly(azoamide triazole)s containing twin azobenzene units in the backbone. Synthesis, characterization, and in vitro degradation studies. Polym Degrad Stab 2021. [DOI: 10.1016/j.polymdegradstab.2021.109726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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6
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Kortekaas L, Simke J, Arndt NB, Böckmann M, Doltsinis NL, Ravoo BJ. Acid-catalysed liquid-to-solid transitioning of arylazoisoxazole photoswitches. Chem Sci 2021; 12:11338-11346. [PMID: 34667544 PMCID: PMC8447883 DOI: 10.1039/d1sc03308e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Accepted: 07/17/2021] [Indexed: 02/01/2023] Open
Abstract
Molecular photoswitches play a vital role in the development of responsive materials. These molecular building blocks are particularly attractive when multiple stimuli can be combined to bring about physical changes, sometimes leading to unexpected properties and functions. The arylazoisoxazole molecular switch was recently shown to be capable of efficient photoreversible solid-to-liquid phase transitions with application in photoswitchable surface adhesion. Here, we show that the arylazoisoxazole forms thermally stable and photoisomerisable protonated Z- and E-isomers in an apolar aprotic solvent when the pK a of the applied acid is sufficiently low. The tuning of isomerisation kinetics from days to seconds by the pK a of the acid not only opens up new reactivity in solution, but also the solid-state photoswitching of azoisoxazoles can be efficiently reversed with selected acid vapours, enabling acid-gated photoswitchable surface adhesion.
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Affiliation(s)
- Luuk Kortekaas
- Center for Soft Nanoscience and Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster Busso-Peus-Straße 10 48149 Münster Germany
| | - Julian Simke
- Center for Soft Nanoscience and Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster Busso-Peus-Straße 10 48149 Münster Germany
| | - Niklas B Arndt
- Center for Soft Nanoscience and Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster Busso-Peus-Straße 10 48149 Münster Germany
| | - Marcus Böckmann
- Institute for Solid State Theory and Center for Multiscale Theory & Computation, Westfälische Wilhelms-Universität Münster Wilhelm-Klemm-Str. 10 48149 Münster Germany
| | - Nikos L Doltsinis
- Institute for Solid State Theory and Center for Multiscale Theory & Computation, Westfälische Wilhelms-Universität Münster Wilhelm-Klemm-Str. 10 48149 Münster Germany
| | - Bart Jan Ravoo
- Center for Soft Nanoscience and Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster Busso-Peus-Straße 10 48149 Münster Germany
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7
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Xu X, Wu B, Zhang P, Xing Y, Shi K, Fang W, Yu H, Wang G. Arylazopyrazole-Based Dendrimer Solar Thermal Fuels: Stable Visible Light Storage and Controllable Heat Release. ACS APPLIED MATERIALS & INTERFACES 2021; 13:22655-22663. [PMID: 33970599 DOI: 10.1021/acsami.1c05163] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Solar thermal fuels offer a closed cycle and a renewable energy storage strategy by harvesting photon energy within the chemical conformations of molecules and retrieving energy by an induced release of heat. However, the majority of reports are limited to the ultraviolet light storage, which potentially interferes with the surrounding environment and reduces the material lifetime. Here, we present a novel arylazopyrazole (AAP)-containing dendrimer that not only addresses the hindrance of visible light storage for solar thermal fuels but also exhibits outstanding performances of abundant energy conversion and stable storage, which are attributed to the substantial absorbance in visible wavelengths of para-thiomethyl-substituted AAP groups and the stability of cis isomers, respectively. The energy density of the dendrimer fuel after efficiently harvesting blue light (405 nm) is as high as 0.14 MJ kg-1 (67 kJ mol-1), and the storage half-life of the fabricated dendrimer film can reach up to 12.9 days. Moreover, the heat release of the dendrimer film can be triggered by different stimuli (light and heat). The dendrimer film displays a 6.5 °C temperature difference between trans isomers and cis isomers during green light irradiation. Our work provides a fascinating avenue to fabricate visible light storage solar thermal fuels and unlocks the possibility of developing natural sunlight storage in the future.
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Affiliation(s)
- Xingtang Xu
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Bo Wu
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Peng Zhang
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Youmei Xing
- Hangzhou Greenda Electronic Materials Co., Ltd., Hangzhou 310051, China
| | - Ke Shi
- Hangzhou Greenda Electronic Materials Co., Ltd., Hangzhou 310051, China
| | - Weihua Fang
- Hangzhou Greenda Electronic Materials Co., Ltd., Hangzhou 310051, China
| | - Haifeng Yu
- Department of Materials Science and Engineering, College of Engineering and Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, Peking University, Beijing 100871, China
| | - Guojie Wang
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
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8
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A Low-Temperature Heat Output Photoactive Material-Based High-Performance Thermal Energy Storage Closed System. MATERIALS 2021; 14:ma14061434. [PMID: 33809446 PMCID: PMC8000957 DOI: 10.3390/ma14061434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2020] [Revised: 01/26/2021] [Accepted: 02/25/2021] [Indexed: 11/18/2022]
Abstract
Designing and synthesizing photothermal conversion materials with better storage capacity, long-term stability as well as low temperature energy output capability is still a huge challenge in the area of photothermal storage. In this work, we report a brand new photothermal conversion material obtained by attaching trifluoromethylated azobenzene (AzoF) to reduced graphene oxide (rGO). AzoF-rGO exhibits outstanding heat storage density and power density up to 386.1 kJ·kg−1 and 890.6 W·kg−1, respectively, with a long half-life (87.7 h) because of the H-bonds based on high attachment density. AzoF-rGO also exhibits excellent cycling stability and is equipped with low-temperature energy output capability, which achieves the reversible cycle of photothermal conversion within a closed system. This novel AzoF-rGO complex, which on the one hand exhibits remarkable energy storage performance as well as excellent storage life span, and on the other hand is equipped with the ability to release heat at low temperatures, shows broad prospects in the practical application of actual photothermal storage.
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Zhang X, Kreuzer LP, Schwaiger DM, Lu M, Mao Z, Cubitt R, Müller-Buschbaum P, Zhong Q. Abnormal fast dehydration and rehydration of light- and thermo-dual-responsive copolymer films triggered by UV radiation. SOFT MATTER 2021; 17:2603-2613. [PMID: 33527960 DOI: 10.1039/d0sm02007a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Abnormal fast dehydration and rehydration of light- and thermo-dual-responsive copolymer films of poly(oligo(ethylene glycol) methyl ether methacrylate-co-6-(4-phenylazophenoxy)hexyl acrylate), abbreviated as P(OEGMA300-co-PAHA), are triggered by UV radiation. Both rapid kinetic processes are probed by in situ neutron reflectivity (NR). The transition temperatures (TTs) of P(OEGMA300-co-PAHA) are 53.0 (ambient conditions) and 52.5 °C (UV radiation, λ = 365 nm). Thin P(OEGMA300-co-PAHA) films show a random distribution of OEGMA300 and PAHA segments. They swell in a D2O vapor atmosphere at 23 °C (below TT) to a swelling ratio d/das-prep of 1.61 ± 0.01 and exhibit a D2O volume fraction φ(D2O) of 39.3 ± 0.5%. After being exposed to UV radiation for only 60 s, d/das-prep and φ(D2O) significantly decrease to 1.00 ± 0.01 and 13.4 ± 0.5%, respectively. Although the UV-induced trans-cis isomerization of the azobenzene in PAHA induces increased hydrophilicity, the configuration change causes a breaking of the intermolecular hydrogen bonds between OEGMA300 and D2O molecules and unexpected film shrinkage. As compared to thermal stimulus-induced dehydration, the present dehydration rate is 100 times faster. Removal of the UV radiation causes immediate rehydration. After 200 s, d/das-prep and φ(D2O) recover to their hydrated states, which is also 30 times faster than the initial hydration. At 60 °C (above TT), thin P(OEGMA300-co-PAHA) films switch to their collapsed state and are insensitive to UV radiation. Thus, the UV-induced fast dehydration and rehydration depend on the existence of hydrogen bonds.
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Affiliation(s)
- Xuan Zhang
- Key Laboratory of Advanced Textile Materials & Manufacturing Technology, Ministry of Education, National Base for International Science and Technology Cooperation in Textiles and Consumer-Goods Chemistry, Zhejiang Sci-Tech University, 310018 Hangzhou, China.
| | - Lucas P Kreuzer
- Technische Universität München, Physik-Department, Lehrstuhl für Funktionelle Materialien, James-Franck-Str. 1, 85748 Garching, Germany.
| | - Dominik M Schwaiger
- Technische Universität München, Physik-Department, Lehrstuhl für Funktionelle Materialien, James-Franck-Str. 1, 85748 Garching, Germany.
| | - Min Lu
- Key Laboratory of Advanced Textile Materials & Manufacturing Technology, Ministry of Education, National Base for International Science and Technology Cooperation in Textiles and Consumer-Goods Chemistry, Zhejiang Sci-Tech University, 310018 Hangzhou, China.
| | - Zhengwei Mao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Robert Cubitt
- Institut Laue-Langevin, 6 Rue Jules Horowitz, 38000 Grenoble, France
| | - Peter Müller-Buschbaum
- Technische Universität München, Physik-Department, Lehrstuhl für Funktionelle Materialien, James-Franck-Str. 1, 85748 Garching, Germany. and Heinz Maier-Leibnitz Zentrum (MLZ), Technische Universität München, Lichtenbergstr. 1, 85748 Garching, Germany
| | - Qi Zhong
- Key Laboratory of Advanced Textile Materials & Manufacturing Technology, Ministry of Education, National Base for International Science and Technology Cooperation in Textiles and Consumer-Goods Chemistry, Zhejiang Sci-Tech University, 310018 Hangzhou, China. and Technische Universität München, Physik-Department, Lehrstuhl für Funktionelle Materialien, James-Franck-Str. 1, 85748 Garching, Germany.
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10
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El-Mahalawy AM, Abdou MM, Wassel AR. Structural, spectroscopic and electrical investigations of novel organic thin films bearing push-pull azo - Phenol dye for UV photodetection applications. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 248:119243. [PMID: 33310615 DOI: 10.1016/j.saa.2020.119243] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 11/04/2020] [Accepted: 11/14/2020] [Indexed: 06/12/2023]
Abstract
In the current study, novel thin films of a phenol-based push-pull azo dye, 2-acetyl-4-(4-chloro-phenylazo) phenol (ACAP), with tunable optical and electronic properties were designed, synthesized and characterized for UV photodetection applications. The crystalline structure and morphological features of the thermally evaporated ACAP thin films are investigated. The fabricated thin films exhibit an amorphous-like structure with low-intensity crystalline regions of average crystallite size of about 29.51 nm and a smooth surface with nanostructured sheets formation. The optical transmittance, reflectance, and absorption of ACAP thin films are measured in the spectral range UV-vis-NIR. A significant high UV absorption extending from 190 nm to 385 nm is observed with semi-transparency nature in the visible region. Furthermore, a good agreement is obtained between the estimated value of the direct energy gap that is obtained experimentally (3.62 eV) and that calculated from the theoretical DFT approach (3.74 eV). The dispersion behavior is analyzed in terms of the single oscillator model and is employed to estimate the dispersion parameters. Finally, an organic/inorganic heterojunction device based on Au/ACAP/n-Si/Al for UV photodetection is successfully fabricated. The current-voltage relations of the manufactured photodetector showed significant stability and sensitivity to the incident UV illumination. The fabricated UV photodetector exhibits responsivity ~25.7 mA/W, specific detectivity ~2 × 109 Jones, efficiency ~16.74%, a fast and reproducible ON/OFF switching behavior with 480 ms and 218 ms rise and fall time, respectively.
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Affiliation(s)
- Ahmed M El-Mahalawy
- Thin Films Laboratory, Physics Department, Faculty of Science, Suez Canal University, 41522 Ismailia, Egypt.
| | - Moaz M Abdou
- Egyptian Petroleum Research Institute, P.O. 11727, Nasr City, Cairo, Egypt
| | - Ahmed R Wassel
- Electron Microscope and Thin Films Department, Physics Research Division, National Research Centre, 33El - Behouth St., Dokki, 12622 Giza, Egypt
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11
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Sitter JD, Vannucci AK. Photocatalytic Oxidative Coupling of Arylamines for the Synthesis of Azoaromatics and the Role of O 2 in the Mechanism. J Am Chem Soc 2021; 143:2938-2943. [PMID: 33571412 DOI: 10.1021/jacs.0c13101] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The photocatalytic oxidative coupling of aryl amines to selectively synthesize azoaromatic compounds has been realized. Multiple different photocatalysts can be used to perform the general reaction; however, Ir(dF-CF3-ppy)2(dtbpy)+, where dF-CF3-ppy is 2-(2,4-difluorophenyl)-5-(trifluoromethyl)pyridine and dtpby is 4,4'-tert-butyl-2,2'-bipyridine, showed the greatest range of reactivity with various amine substrates. Both electron-rich and -deficient amines can be coupled with yields up to 95% under an ambient air atmosphere. Oxygen was deemed to be essential for the reaction and is utilized in the regeneration of the photocatalyst. Fluorescence quenching and radical trap experiments indicate an amine radical coupling mechanism that proceeds through a hydrazoaromatic intermediate before further oxidation occurs to form the desired azoaromatic products.
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Affiliation(s)
- James D Sitter
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, United States
| | - Aaron K Vannucci
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, United States
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12
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Tian B, Liu Y, Liu J. Smart stimuli-responsive drug delivery systems based on cyclodextrin: A review. Carbohydr Polym 2020; 251:116871. [PMID: 33142550 DOI: 10.1016/j.carbpol.2020.116871] [Citation(s) in RCA: 76] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Revised: 07/29/2020] [Accepted: 07/30/2020] [Indexed: 12/29/2022]
Abstract
Stimulated by researches in materials chemistry and medicine fields, drug delivery has entered a new stage of development. Drug delivery systems have been extensively studied according to the differences in the drug therapeutic environment such as pH, light, temperature, magnet, redox, enzymes, etc. Cyclodextrin is a smart tool that has been proven to be used in the preparation of drug delivery, and has become a new area of concern in recent years. In this review, we discuss recent research advances in smart stimuli-responsive cyclodextrin-based drug delivery. First, different stimuli-responsive drug delivery systems based on cyclodextrin are introduced and classified. Then, the characteristics of different types of stimuli-responsive drug delivery systems are described, and their applications are emphasized. Finally, current challenges and future development opportunities of smart stimuli-responsive drug delivery systems based on cyclodextrin are discussed.
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Affiliation(s)
- Bingren Tian
- College of Chemistry and Chemical Engineering, Xinjiang University, Urumchi, 830001, China.
| | - Yumei Liu
- College of Chemistry and Chemical Engineering, Xinjiang University, Urumchi, 830001, China.
| | - Jiayue Liu
- School of Pharmacy, Ningxia Medical University, Yinchuan, 750004, China.
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13
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Zhang W, Jamal R, Zhang R, Yu Z, Yan Y, Liu Y, Ge Y, Abdiryim T. Self-assembly of pendant functional groups grafted PEDOT as paracetamol detection material. Phys Chem Chem Phys 2020; 22:3592-3603. [PMID: 31995070 DOI: 10.1039/c9cp05759e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
In this paper, pendant functional group grafted EDOTs, such as EDOTCH2NH2, EDOTCH2OH and EDOTCH2SH, were selected as monomers for the preparation of their respective polymers via a common chemical oxidative polymerization method in the absence of CTAB by varying the [monomer]/[oxidant] ratios. The self-assembly mechanism of the polymers was systematically studied by discussing the hydrogen bonding effect, acidity and electron-donating ability, as well as the chain initiation and chain growth of the chemically oxidated polymerized monomers. These functional group grafted PEDOTs were applied to the electrochemical determination of paracetamol (PAR) to further investigate the effect of the pendant functional groups (-SH, -OH, -NH2) on the electrochemical sensing behaviour of the polymers. The results indicated that the hydrogen bonding effect of the pendant functional groups was vital to the self-assembly of the polymer chains, and the PEDOTs with -OH and -SH groups had a tendency to self-assemble into a spherical structure, while the PEDOT with an -NH2 group exhibited a fibrous structure. The electrochemical response of PEDOTs with functional groups was better than that that of PEDOT alone, and the highest electrochemical response was observed in PEDOT with an -SH group ([monomer]/[oxidant] = 1 : 8).
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Affiliation(s)
- Wenli Zhang
- Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, Xinjiang University, Urumqi, 830046, P. R. China.
| | - Ruxangul Jamal
- Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, Xinjiang University, Urumqi, 830046, P. R. China.
| | - Ruanye Zhang
- Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, Xinjiang University, Urumqi, 830046, P. R. China.
| | - Zongna Yu
- Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, Xinjiang University, Urumqi, 830046, P. R. China.
| | - Yinqiang Yan
- Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, Xinjiang University, Urumqi, 830046, P. R. China.
| | - Yingcheng Liu
- Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, Xinjiang University, Urumqi, 830046, P. R. China.
| | - Yi Ge
- Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, Xinjiang University, Urumqi, 830046, P. R. China.
| | - Tursun Abdiryim
- Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, Xinjiang University, Urumqi, 830046, P. R. China.
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14
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Roche A, Oriol L, Tejedor RM, Piñol M. Polymeric Self-Assemblies Based on tetra- ortho-Substituted Azobenzene as Visible Light Responsive Nanocarriers. Polymers (Basel) 2019; 11:polym11122060. [PMID: 31835773 PMCID: PMC6960964 DOI: 10.3390/polym11122060] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 12/04/2019] [Accepted: 12/06/2019] [Indexed: 12/22/2022] Open
Abstract
Most of reported polymeric light-responsive nanocarriers make use of UV light to trigger morphological changes and the subsequent release of encapsulated cargoes. Moving from UV- to visible-responsive units is interesting for the potential biomedical applications of these materials. Herein we report the synthesis by ring opening polymerization (ROP) of a series of amphiphilic diblock copolymers, into which either UV or visible responsive azobenzenes have been introduced via copper(I) catalyzed azide-alkyne cycloaddition (CuAAC). These copolymers are able to self-assemble into spherical micelles or vesicles when dispersed in water. The study of the response of the self-assemblies upon UV (365 nm) or visible (530 or 625 nm) light irradiation has been studied by Transmission Electron Microscopy (TEM), Cryogenic Transmission Electron Microscopy (Cryo-TEM), and Dynamic Light Scattering (DLS) studies. Encapsulation of Nile Red, in micelles and vesicles, and Rhodamine B, in vesicles, and its light-stimulated release has been studied by fluorescence spectroscopy and confocal microscopy. Appreciable morphological changes have been induced with green light, and the subsequent release of encapsulated cargoes upon green light irradiation has been confirmed.
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Affiliation(s)
- Alejandro Roche
- Departamento de Química Orgánica, Instituto de Ciencia de Materiales de Aragón (ICMA), Universidad de Zaragoza‒CSIC, c/Pedro Cerbuna 12, 50009 Zaragoza, Spain; (A.R.); (L.O.)
| | - Luis Oriol
- Departamento de Química Orgánica, Instituto de Ciencia de Materiales de Aragón (ICMA), Universidad de Zaragoza‒CSIC, c/Pedro Cerbuna 12, 50009 Zaragoza, Spain; (A.R.); (L.O.)
| | - Rosa M. Tejedor
- Departamento de Química Orgánica, Instituto de Ciencia de Materiales de Aragón (ICMA), Universidad de Zaragoza‒CSIC, c/Pedro Cerbuna 12, 50009 Zaragoza, Spain; (A.R.); (L.O.)
- Centro Universitario de la Defensa, Academia General Militar, Ctra. de Huesca s/n, 50090 Zaragoza, Spain
- Correspondence: (R.M.T.); (M.P.); Tel.: +34-976-762279 (M.P.)
| | - Milagros Piñol
- Departamento de Química Orgánica, Instituto de Ciencia de Materiales de Aragón (ICMA), Universidad de Zaragoza‒CSIC, c/Pedro Cerbuna 12, 50009 Zaragoza, Spain; (A.R.); (L.O.)
- Correspondence: (R.M.T.); (M.P.); Tel.: +34-976-762279 (M.P.)
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15
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Shen L, Huang X. Tuning the morphologies and electrical properties of azobenzene-4,4′-dicarboxylate-doped polypyrrole via ultraviolet light irradiation and medium pH alteration. POLYMER 2019. [DOI: 10.1016/j.polymer.2019.05.053] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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16
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Vasantha VA, Junhui C, Wenguang Z, van Herk AM, Parthiban A. Reversible Photo- and Thermoresponsive, Self-Assembling Azobenzene Containing Zwitterionic Polymers. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:1465-1474. [PMID: 30103606 DOI: 10.1021/acs.langmuir.8b01820] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Commercially available azo dyes bearing amino groups were grafted to zwitterionic copolymers composed of cyclic anhydride functionality. The zwitterionic copolymers were prepared for the first time by polymerizing sulfobetaine (SB) monomer with maleic anhydride (MA) under conventional free radical polymerization as well as reversible addition-fragmentation chain transfer (RAFT) polymerization. Poly(SB- co-MA) self-assembled in deionized water. Azobenzene grafted zwitterionic poly((SB- co-MA)- g-Azo) exhibited multiresponsive behavior. As confirmed by UV-vis spectroscopy, trans → cis isomerization of the azo group was responsible for the photo- and thermal responsive behavior. The photoisomerization was reversible, and no photoaging was detected during the repeated exposure to UV and visible light. The water-soluble nature of photoresponsive azo dye grafted copolymers makes it suitable for applications in biological systems.
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Affiliation(s)
- Vivek Arjunan Vasantha
- Institute of Chemical and Engineering Sciences , Agency for Science, Technology and Research (A*STAR) , 1 Pesek Road , Jurong Island, Singapore 627833
| | - Chen Junhui
- Institute of Chemical and Engineering Sciences , Agency for Science, Technology and Research (A*STAR) , 1 Pesek Road , Jurong Island, Singapore 627833
| | - Zhao Wenguang
- Institute of Chemical and Engineering Sciences , Agency for Science, Technology and Research (A*STAR) , 1 Pesek Road , Jurong Island, Singapore 627833
| | - Alexander M van Herk
- Institute of Chemical and Engineering Sciences , Agency for Science, Technology and Research (A*STAR) , 1 Pesek Road , Jurong Island, Singapore 627833
| | - Anbanandam Parthiban
- Institute of Chemical and Engineering Sciences , Agency for Science, Technology and Research (A*STAR) , 1 Pesek Road , Jurong Island, Singapore 627833
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17
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Qian S, Li S, Xiong W, Khan H, Huang J, Zhang W. A new visible light and temperature responsive diblock copolymer. Polym Chem 2019. [DOI: 10.1039/c9py01050e] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
A visible light and temperature responsive diblock copolymer of poly[6-(2,6,2′,6′-tetramethoxy-4′-oxyazobenzene) hexyl methacrylate]-block-poly(N-isopropylacrylamide) (PmAzo-b-PNIPAM) was synthesized via RAFT polymerization by carefully tuning the polymerization conditions.
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Affiliation(s)
- Sijia Qian
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Institute of Polymer Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
| | - Shenzhen Li
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Institute of Polymer Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
| | - Weifeng Xiong
- State Key Laboratory of Special Functional Waterproof Materials
- Beijing Oriental Yuhong Waterproof Technology Co
- Ltd
- Beijing 100123
- China
| | - Habib Khan
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Institute of Polymer Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
| | - Jing Huang
- Sinopec Research Institute of Petroleum Engineering
- Beijing
- China
| | - Wangqing Zhang
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Institute of Polymer Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
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18
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Bian Q, Xue Z, Sun P, Shen K, Wang S, Jia J. Visible-light-triggered supramolecular valves based on β-cyclodextrin-modified mesoporous silica nanoparticles for controlled drug release. RSC Adv 2019; 9:17179-17182. [PMID: 35519886 PMCID: PMC9064457 DOI: 10.1039/c9ra02612f] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Accepted: 05/23/2019] [Indexed: 11/21/2022] Open
Abstract
Visible-light triggered drug delivery system based on tetra-ortho-methoxy-substituted azobenzene (mAzo) and β-cyclodextrin (β-CD) modified mesoporous silica nanoparticles (MSNs-CD).
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Affiliation(s)
- Qing Bian
- Analysis and Testing Central Facility of Anhui University of Technology
- Maanshan 243032
- China
| | - Zhaolu Xue
- Research Center of Modern Surface
- Interface Engineering of Anhui University of Technology
- Maanshan 243032
- China
| | - Po Sun
- Analysis and Testing Central Facility of Anhui University of Technology
- Maanshan 243032
- China
| | - Kejing Shen
- Analysis and Testing Central Facility of Anhui University of Technology
- Maanshan 243032
- China
| | - Shangbing Wang
- Analysis and Testing Central Facility of Anhui University of Technology
- Maanshan 243032
- China
| | - Juanying Jia
- Analysis and Testing Central Facility of Anhui University of Technology
- Maanshan 243032
- China
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19
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El alamy A, El-Ghayoury A, Amine A, Bouachrine M. Optoelectronic properties of four azobenzene-based iminopyridine ligands for photovoltaic application. JOURNAL OF TAIBAH UNIVERSITY FOR SCIENCE 2018. [DOI: 10.1016/j.jtusci.2016.10.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Aziz El alamy
- LCBAE/CMMBA, Faculty of Science, Moulay Ismail University, Meknes, Morocco
| | - Abdelkrim El-Ghayoury
- Laboratoire MOLTECH Anjou, Université d’Angers, UFR Sciences, UMR 6200, CNRS, Bât. K, 2 Bd. Lavoisier, 49045 Angers Cedex, France
| | - Amina Amine
- LCBAE/CMMBA, Faculty of Science, Moulay Ismail University, Meknes, Morocco
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20
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Host-guest self-assembly toward reversible visible-light-responsive switching for bacterial adhesion. Acta Biomater 2018; 76:39-45. [PMID: 30078424 DOI: 10.1016/j.actbio.2018.06.039] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Revised: 06/11/2018] [Accepted: 06/30/2018] [Indexed: 12/22/2022]
Abstract
Here we report a facile method to construct reversible visible-light-responsive switching from antibacterial to bioadhesion by host-guest self-assembly of β-cyclodextrin (β-CD) and azobenzene functionalized polycation/polyanion. The visible-light-responsible azobenzene functionalized polycation, poly{6-[(2,6-dimethoxyphenyl)azo-4-(2',6'-dimethoxy)phenoxy]propyl dimethylaminoethyl methacrylate-random-poly(2-(N,N-dimethylaminoethyl) methacrylate) (Azo-PDMAEMA), was synthesized via quaternization reaction between 2,6,2',6'-tetramethoxy-4-(3-bromopropoxy)azobenzene (AzoOMeBr) and poly(2-(N,N-dimethylaminoethyl) methacrylate) (PDMAEMA), and the polyanion, poly{6-[(2,6-dimethoxyphenyl)azo-4-(2',6'-dimethoxy) phenoxy]hexyl acrylate-random-acrylic acid} (Azo-PAA), was synthesized via esterification reaction between 2,6,2',6'-tetramethoxy-4-(6-hydroxyhexyloxy) azobenzene (AzoOMeOH) and poly(acryloyl chloride) (PAC) and subsequent hydrolysis reactions. The switch surface could be achieved via the alternate host-guest assembly of Azo-PDMAEMA and Azo-PAA onto a β-CD-terminated substratum (Sub-CD) through visible light irradiation. The positively charged Azo-PDMAEMA with quaternary ammonium groups exhibited antimicrobial properties and few bacteria were adhered on the surface, while the negatively charged Azo-PAA with carboxyl acid groups exhibited excellent bioadhesive properties and a large number of bacteria were adhered. Interestingly, the switch between antibacterial and bioadhesive could be realized upon visible light irradiation via alternate assembly of Azo-PDMAEMA and Azo-PAA. The proposed approach to manufacturing visible-light-responsive surface with reversible and alterable biofunctionality switching between antibacterial and bioadhesive is simple and efficient, which is promising for preparation of multifunctional polymeric surfaces to encounter multifarious demands for the biomedical and biotechnological applications. STATEMENT OF SIGNIFICANCE Light has attracted great attention in building biointerfaces for its precise spatiotemporal control and convenient operation. However, UV light may damage to biological samples and living tissues, which will limit its applications. This study demonstrates a novel visible-light-responsive surface fabricated through reversible assembly of azobenzene functionalized polycations/polyanions on cyclodextrin (CD)-terminated substrate by host-guest interactions between the visible-light-responsive azobenzene mAzo and CD, which has not been examined previously. It is noted that the azobenzene functionalized polycations show strong antibacterial activities, while the polyanions show excellent bioadhesive properties, as can be switched through the alternate assembly upon visible-light irradiation. This facile and versatile approach to visible-light-responsive surfaces holds great potential for switching of bioadhesion.
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21
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Zhang M, Wang D, Bai B, Wang H, He L, Li M. The visible light responsive properties of organogel based on anthracene-substituted acylhydrazone derivative. CHINESE CHEM LETT 2018. [DOI: 10.1016/j.cclet.2017.08.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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22
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Xu Y, Cao J, Li Q, Li J, He K, Shen T, Liu X, Yuan C, Zeng B, Dai L. Novel azobenzene-based amphiphilic copolymers: synthesis, self-assembly behavior and multiple-stimuli-responsive properties. RSC Adv 2018; 8:16103-16113. [PMID: 35542192 PMCID: PMC9080269 DOI: 10.1039/c8ra01660g] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Revised: 05/16/2018] [Accepted: 04/25/2018] [Indexed: 12/03/2022] Open
Abstract
A series of novel azobenzene-based amphiphilic random copolymers P(POSSMA-co-AZOMA-co-DMAEMA) were synthesized via reversible addition-fragmentation chain transfer (RAFT) polymerization. A light and reduction dual-responsive azo group, pH-responsive tertiary amine group and super hydrophobic POSS moiety were incorporated into the polymer chain to generate multi-stimuli-responsiveness. Self-assembly of these amphiphilic copolymers led to the formation of spherical micelles in aqueous solution. The light, pH and reduction responsive properties of the micelles were investigated systematically by DLS, TEM, UV-vis, FTIR and NMR. The azo groups can undergo trans–cis isomerization under UV light irradiation, thus causing a diameter change of the micelles. Owing to the large proportion of tertiary amine groups in amphiphiles, these micelles showed sensitive pH-response behavior. The hydrophobic azo pendant in the polymer chain completely reduced to a more hydrophilic substituted aniline in a reductive environment, resulting in the increase of overall hydrophilicity of amphiphiles and the disassembly of polymeric micelles. Owing to these multi-stimuli–responses, the polymeric micelles showed rapid and efficient release properties of hydrophobic molecules in response to pH and reductive stimuli. Polymeric micelles encapsulating and releasing hydrophobic guest molecules.![]()
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Affiliation(s)
- Yiting Xu
- Fujian Provincial Key Laboratory of Fire Retardant Materials
- Xiamen University
- Xiamen 361005
- People's Republic of China
| | - Jie Cao
- Fujian Provincial Key Laboratory of Fire Retardant Materials
- Xiamen University
- Xiamen 361005
- People's Republic of China
| | - Qi Li
- Fujian Provincial Key Laboratory of Fire Retardant Materials
- Xiamen University
- Xiamen 361005
- People's Republic of China
| | - Jilu Li
- Fujian Provincial Key Laboratory of Fire Retardant Materials
- Xiamen University
- Xiamen 361005
- People's Republic of China
| | - Kaiwei He
- Fujian Provincial Key Laboratory of Fire Retardant Materials
- Xiamen University
- Xiamen 361005
- People's Republic of China
| | - Tong Shen
- Fujian Provincial Key Laboratory of Fire Retardant Materials
- Xiamen University
- Xiamen 361005
- People's Republic of China
| | - Xinyu Liu
- Fujian Provincial Key Laboratory of Fire Retardant Materials
- Xiamen University
- Xiamen 361005
- People's Republic of China
| | - Conghui Yuan
- Fujian Provincial Key Laboratory of Fire Retardant Materials
- Xiamen University
- Xiamen 361005
- People's Republic of China
| | - Birong Zeng
- Fujian Provincial Key Laboratory of Fire Retardant Materials
- Xiamen University
- Xiamen 361005
- People's Republic of China
| | - Lizong Dai
- Fujian Provincial Key Laboratory of Fire Retardant Materials
- Xiamen University
- Xiamen 361005
- People's Republic of China
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23
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Wang J, Li Q, Yi S, Chen X. Visible-light/temperature dual-responsive hydrogel constructed by α-cyclodextrin and an azobenzene linked surfactant. SOFT MATTER 2017; 13:6490-6498. [PMID: 28880328 DOI: 10.1039/c7sm01528c] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A novel photo-responsive anionic surfactant with a dimethylamino-substituted azobenzene located at the end of the hydrophobic chain, 6-(4-dimethylaminoazobenzene-4'-oxy)hexanoate sodium (DAH), has been designed. Through the host-guest interaction in aqueous solution, the trans-DAH could be spontaneously included by using two native α-cyclodextrin (α-CD) molecules. The formed hydrophilic inclusion complex (DAH@2α-CD), however, could act as a gelator to induce the formation of a supramolecular hydrogel, which is driven mainly by hydrogen bonds between neighboring α-CDs and also between the carboxylate in DAH and water. Compared with common hydrogels that consist of networks with fibres or discrete polymer chains, the hydrogel formed by DAH@2α-CD was composed of periodic lamellar structures possessing good shear-thinning behavior and much swollen water layers. The more interesting point for such a hydrogel was its visible-light responsibility for gel-sol reversible phase transition. This originated from the introduction of an electron-donating group (dimethylamino) to azobenzene, which noticeably red-shifted the responsive wavelength for its trans-to-cis isomerization. It was also worth noting that the host-guest interaction between azobenzene in DAH and α-CD significantly improved the photo-transition efficiency from trans to cis forms of azobenzene, which played a critical role in the visible-light responsibility of the hydrogel. This unique visible-light-responsive behavior combined with the inherent thermo-responsive property from α-CD should make the prepared hydrogel find more potential applications in biomedical systems.
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Affiliation(s)
- Jiao Wang
- Key Laboratory of Colloid and Interface Chemistry, Shandong University, Ministry of Education, Jinan, 250100, China.
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24
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Weis P, Wu S. Light-Switchable Azobenzene-Containing Macromolecules: From UV to Near Infrared. Macromol Rapid Commun 2017. [PMID: 28643895 DOI: 10.1002/marc.201700220] [Citation(s) in RCA: 94] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Azobenzene-containing macromolecules (azo-macromolecules) such as azobenzene-containing polymers (azopolymers) and azobenzene-functionalized biomacromolecules are photoswitchable macromolecules. Trans-to-cis photoisomerization in conventional azo-macromolecules is induced by ultraviolet (UV) light. However, UV light cannot penetrate deeply into issue and has a very small fraction in sunlight. Therefore, conventional azo-macromolecules are problematic for biomedical and solar-energy-related applications. In this Feature Article, the strategies for constructing visible and near-infrared (NIR) light-responsive azo-macromolecules are reviewed, and the potential applications of visible- and NIR-light-responsive azo-macromolecules in biomedicine and solar energy conversion are highlighted. The remaining challenges in the field of photoswitchable azo-macromolecules are discussed.
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Affiliation(s)
- Philipp Weis
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
| | - Si Wu
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
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25
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Liu B, Zhou Y, Zhou X, Wang X. Photodeformable Microspheres from Methacrylate-Based Azo Homopolymers. MACROMOL CHEM PHYS 2017. [DOI: 10.1002/macp.201700020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Bingyang Liu
- Department of Chemical Engineering; Laboratory of Advanced Materials (MOE); Tsinghua University; Beijing 100084 P. R. China
| | - Yuqi Zhou
- Department of Chemical Engineering; Laboratory of Advanced Materials (MOE); Tsinghua University; Beijing 100084 P. R. China
| | - Xinran Zhou
- Department of Chemical Engineering; Laboratory of Advanced Materials (MOE); Tsinghua University; Beijing 100084 P. R. China
| | - Xiaogong Wang
- Department of Chemical Engineering; Laboratory of Advanced Materials (MOE); Tsinghua University; Beijing 100084 P. R. China
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26
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Gao F, Xing Y, Yao Y, Sun L, Sun Y, He X, Lin S. Self-assembly and multi-stimuli responsive behavior of PAA-b-PAzoMA-b-PNIPAM triblock copolymers. Polym Chem 2017. [DOI: 10.1039/c7py01591g] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A PAA-b-PAzoMA-b-PNIPAM triblock copolymer containing pH, photo and temperature sensitive groups could self-assemble into spherical micelles or vesicles with multi-stimuli responsiveness.
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Affiliation(s)
- Fei Gao
- Shanghai Key Laboratory of Advanced Polymeric Materials
- Key Laboratory for Ultrafine Materials of Ministry of Education
- School of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai 200237
| | - Yaohui Xing
- Shanghai Key Laboratory of Advanced Polymeric Materials
- Key Laboratory for Ultrafine Materials of Ministry of Education
- School of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai 200237
| | - Yuan Yao
- Shanghai Key Laboratory of Advanced Polymeric Materials
- Key Laboratory for Ultrafine Materials of Ministry of Education
- School of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai 200237
| | - Liuying Sun
- Shanghai Key Laboratory of Advanced Polymeric Materials
- Key Laboratory for Ultrafine Materials of Ministry of Education
- School of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai 200237
| | - Yao Sun
- Shanghai Key Laboratory of Advanced Polymeric Materials
- Key Laboratory for Ultrafine Materials of Ministry of Education
- School of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai 200237
| | - Xiaohua He
- Department of Chemistry
- East China Normal University
- Shanghai 200241
- China
| | - Shaoliang Lin
- Shanghai Key Laboratory of Advanced Polymeric Materials
- Key Laboratory for Ultrafine Materials of Ministry of Education
- School of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai 200237
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27
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Bian Q, Jin M, Chen S, Xu L, Wang S, Wang G. Visible-light-responsive polymeric multilayers for trapping and release of cargoes via host–guest interactions. Polym Chem 2017. [DOI: 10.1039/c7py00946a] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Visible-light-responsive layer-by-layer assembled polyelectrolyte multilayers are fabricated for reversible trapping and release of cargoes via azobenzene/cyclodextrin host–guest interactions.
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Affiliation(s)
- Qing Bian
- School of Materials Science and Engineering
- University of Science and Technology Beijing
- Beijing 100083
- China
| | - Minmin Jin
- School of Materials Science and Engineering
- University of Science and Technology Beijing
- Beijing 100083
- China
| | - Shuo Chen
- School of Materials Science and Engineering
- University of Science and Technology Beijing
- Beijing 100083
- China
| | - Liping Xu
- Research Center for Bioengineering & Sensing Technology
- University of Science and Technology Beijing
- 100083
- China
| | - Shutao Wang
- Laboratory of Bio-inspired Smart Interface Science
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing
- China
| | - Guojie Wang
- School of Materials Science and Engineering
- University of Science and Technology Beijing
- Beijing 100083
- China
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28
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Niu W, Qu L, Lyv R, Zhang S. Reconfigurable photonic crystals with optical bistability enabled by “cold” programming and thermo-recoverable shape memory polymers. RSC Adv 2017. [DOI: 10.1039/c6ra28682h] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A type of reconfigurable photonic crystals with optically bistable states enabled by capillary pressure-induced programming and heat-caused recoverable shape memory polymers was reported.
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Affiliation(s)
- Wenbin Niu
- State Key Laboratory of Fine Chemicals
- Dalian University of Technology
- West Campus
- Dalian 116024
- China
| | - Lingcheng Qu
- State Key Laboratory of Fine Chemicals
- Dalian University of Technology
- West Campus
- Dalian 116024
- China
| | - Rongwen Lyv
- State Key Laboratory of Fine Chemicals
- Dalian University of Technology
- West Campus
- Dalian 116024
- China
| | - Shufen Zhang
- State Key Laboratory of Fine Chemicals
- Dalian University of Technology
- West Campus
- Dalian 116024
- China
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29
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Huebner D, Rossner C, Vana P. Light-induced self-assembly of gold nanoparticles with a photoresponsive polymer shell. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.05.073] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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30
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Wang Z, Liao Y. Reversible dissolution/formation of polymer nanoparticles controlled by visible light. NANOSCALE 2016; 8:14070-14073. [PMID: 27389863 DOI: 10.1039/c6nr02163h] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Noncovalent crosslinking between polyvinyl pyridine and a copolymer of acrylic acid led to the formation of a polymer nanoparticle. In the presence of a metastable-state photoacid, reversible dissolution and formation of the nanoparticle can be controlled by visible light. Photo-induced proton transfer from the photoacid to the polymers broke the hydrogen bonding and ionic bonding and led to the dissolution of the nanoparticle. Cycles of dissolution and formation were controlled by turning on and off irradiation, and were demonstrated by the transmittance change.
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Affiliation(s)
- Zhuozhi Wang
- Department of Chemistry, Florida Institute of Technology, Melbourne, FL 32901, USA.
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31
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Bian Q, Wang W, Han G, Chen Y, Wang S, Wang G. Photoswitched Cell Adhesion on Azobenzene-Containing Self-Assembled Films. Chemphyschem 2016; 17:2503-8. [PMID: 27146320 DOI: 10.1002/cphc.201600362] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Indexed: 11/09/2022]
Abstract
Stimuli-responsive surfaces that can regulate and control cell adhesion have attracted much attention for their great potential in diverse biomedical applications. Unlike for pH- and temperature-responsive surfaces, the process of photoswitching requires no additional input of chemicals or thermal energy. In this work, two different photoresponsive azobenzene films are synthesized by chemisorption and electrostatic layer-by-layer (LbL) assembly techniques. The LbL film exhibits a relatively loose packing of azobenzene chromophores compared with the chemisorbed film. The changes in trans/cis isomer ratio of the azobenzene moiety and the corresponding wettability of the LbL films are larger than those of the chemisorbed films under UV light irradiation. The tendency for cell adhesion on the LbL films decreases markedly after UV light irradiation, whereas adhesion on the chemisorbed films decreases only slightly, because the azobenzene chromophores stay densely packed. Interestingly, the tendency for cell adhesion can be considerably increased on rough substrates, the roughness being introduced by use of photolithography and inductively coupled plasma deep etching techniques. For the chemisorbed films on rough substrates, the amount of cells that adhere also changes slightly after UV light irradiation, whereas, the amount of cells that adhere to LbL films on rough substrates decreases significantly.
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Affiliation(s)
- Qing Bian
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Wenshuo Wang
- Laboratory of Bio-inspired Smart Interface Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Guoxiang Han
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Yupeng Chen
- Laboratory of Bio-inspired Smart Interface Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Shutao Wang
- Laboratory of Bio-inspired Smart Interface Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.
| | - Guojie Wang
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, China.
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32
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Wang G, Dong J, Yuan T, Zhang J, Wang L, Wang H. Visible Light and pH Responsive Polymer-Coated Mesoporous Silica Nanohybrids for Controlled Release. Macromol Biosci 2016; 16:990-4. [DOI: 10.1002/mabi.201600008] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Revised: 02/04/2016] [Indexed: 11/08/2022]
Affiliation(s)
- Guojie Wang
- School of Materials Science and Engineering; University of Science and Technology Beijing; Beijing 100083 China
| | - Jie Dong
- School of Materials Science and Engineering; University of Science and Technology Beijing; Beijing 100083 China
| | - Tingting Yuan
- School of Materials Science and Engineering; University of Science and Technology Beijing; Beijing 100083 China
| | - Juchen Zhang
- CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety; National Center for Nanoscience and Technology; Beijing 100190 China
| | - Lei Wang
- CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety; National Center for Nanoscience and Technology; Beijing 100190 China
| | - Hao Wang
- CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety; National Center for Nanoscience and Technology; Beijing 100190 China
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33
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Lu J, Zhou F, Li L, Zhang Z, Meng F, Zhou N, Zhu X. Novel cyclic azobenzene-containing vesicles: photo/reductant responsiveness and potential applications in colon disease treatment. RSC Adv 2016. [DOI: 10.1039/c6ra12751g] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The vesicles formed by an amphiphilic copolymer with cyclic azobenzene pendants revealed higher drug loading content and better photo/reductant responsiveness than an analogue of the amphiphilic copolymer with linear azobenzene units.
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Affiliation(s)
- Jinjie Lu
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
| | - Feng Zhou
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
| | - Lishan Li
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
| | - Zhengbiao Zhang
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
| | - Fenghua Meng
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
| | - Nianchen Zhou
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
| | - Xiulin Zhu
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
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Kalva N, Basutkar NB, Ambade AV. Photoresponsive assemblies of linear-dendritic copolymers containing azobenzene in the dendron interior: the effect of the dendron structure on dye encapsulation and release. RSC Adv 2016. [DOI: 10.1039/c6ra02250b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Linear-dendritic copolymers show differential dye encapsulation and photoinduced dye release based on the number and positions of azobenzenes in the dendritic backbone as well as substituents on the dendron periphery.
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Affiliation(s)
- Nagendra Kalva
- Polymer Science and Engineering Division
- CSIR-National Chemical Laboratory
- Pune-411008
- India
- Academy of Scientific and Innovative Research
| | - Nitin B. Basutkar
- Polymer Science and Engineering Division
- CSIR-National Chemical Laboratory
- Pune-411008
- India
| | - Ashootosh V. Ambade
- Polymer Science and Engineering Division
- CSIR-National Chemical Laboratory
- Pune-411008
- India
- Academy of Scientific and Innovative Research
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