1
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Yu Y, Qu X, Li J, Huang F, Yang J. Arylazopyrazole as a photo-switch for controllable self-assembly of pillar[6]arene-based supramolecular amphiphiles. Chem Commun (Camb) 2023; 59:14265-14268. [PMID: 37961865 DOI: 10.1039/d3cc05018a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
A photo-responsive host-guest molecular recognition between a cationic pillar[6]arene host and an arylazopyrazole derived guest was established. Based on this novel recognition motif, a photo-controllable supra-amphiphile was constructed. The spontaneous aggregation can be reversibly controlled by irradiation with UV (365 nm) and green light (520 nm), leading to a switch between spherical nanoparticles and vesicle-like aggregates.
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Affiliation(s)
- Yishu Yu
- College of Science, Nanjing Forestry University, Nanjing 210037, P. R. China.
| | - Xiaotian Qu
- College of Science, Nanjing Forestry University, Nanjing 210037, P. R. China.
| | - Junran Li
- College of Science, Nanjing Forestry University, Nanjing 210037, P. R. China.
| | - Feihe Huang
- Stoddart Institute of Molecular Science, Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China.
- Zhejiang-Israel Joint Laboratory of Self-Assembling Functional Materials, ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou, 311215, China
| | - Jie Yang
- College of Science, Nanjing Forestry University, Nanjing 210037, P. R. China.
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2
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Höglsperger F, Larik FA, Bai C, Seyfried MD, Daniliuc C, Klaasen H, Thordarson P, Beves JE, Ravoo BJ. Water-Soluble Arylazoisoxazole Photoswitches. Chemistry 2023; 29:e202302069. [PMID: 37578089 DOI: 10.1002/chem.202302069] [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: 06/30/2023] [Revised: 08/11/2023] [Accepted: 08/14/2023] [Indexed: 08/15/2023]
Abstract
Azoheteroarenes are emerging as powerful alternatives to azobenzene molecular photoswitches. In this study, water-soluble arylazoisoxazole photoswitches are introduced. UV/vis and NMR spectroscopy revealed moderate to very good photostationary states and reversible photoisomerization between the E- and Z-isomers over multiple cycles with minimal photobleaching. Several arylazoisoxazoles form host-guest complexes with β- and γ-cyclodextrin with significant differences in binding constants for each photoisomer as shown by isothermal titration calorimetry and NMR experiments, indicating their potential for photoresponsive host-guest chemistry in water. One carboxylic acid functionalized arylazoisoxazole can act as a hydrogelator, allowing gel properties to be manipulated reversibly with light. The hydrogel was characterized by rheological experiments, atom force microscopy and transmission electron microscopy. These results demonstrate that arylazoisoxazoles can find applications as molecular photoswitches in aqueous media.
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Affiliation(s)
- Fabian Höglsperger
- Organisch-Chemisches Institut and Center for Soft Nanoscience, Westfälische Wilhelms-Universität Münster, Correnstrasse 36, 48149, Münster, Germany
| | - Fayaz Ali Larik
- School of Chemistry, The University of New South Wales, Sydney, NSW-2052, Australia
| | - Changzhuang Bai
- School of Chemistry, The University of New South Wales, Sydney, NSW-2052, Australia
- UNSW RNA Institute, The University of New South Wales, Sydney, NSW-2052, Australia
| | - Maximilian D Seyfried
- Organisch-Chemisches Institut and Center for Soft Nanoscience, Westfälische Wilhelms-Universität Münster, Correnstrasse 36, 48149, Münster, Germany
| | - Constantin Daniliuc
- Organisch-Chemisches Institut and Center for Soft Nanoscience, Westfälische Wilhelms-Universität Münster, Correnstrasse 36, 48149, Münster, Germany
| | - Henning Klaasen
- Organisch-Chemisches Institut and Center for Soft Nanoscience, Westfälische Wilhelms-Universität Münster, Correnstrasse 36, 48149, Münster, Germany
| | - Pall Thordarson
- School of Chemistry, The University of New South Wales, Sydney, NSW-2052, Australia
- UNSW RNA Institute, The University of New South Wales, Sydney, NSW-2052, Australia
| | - Jonathon E Beves
- School of Chemistry, The University of New South Wales, Sydney, NSW-2052, Australia
| | - Bart Jan Ravoo
- Organisch-Chemisches Institut and Center for Soft Nanoscience, Westfälische Wilhelms-Universität Münster, Correnstrasse 36, 48149, Münster, Germany
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3
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Gibalova A, Kortekaas L, Simke J, Ravoo BJ. Multi-responsive Electropolymer Surface Coatings Based on Azo Molecular Switches and Carbazoles: Light, pH, and Electrochemical Control of Z→E Isomerization in Thin Films. Chemistry 2023; 29:e202302215. [PMID: 37565655 DOI: 10.1002/chem.202302215] [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: 07/11/2023] [Revised: 08/10/2023] [Accepted: 08/10/2023] [Indexed: 08/12/2023]
Abstract
Light-responsive surfaces are attracting increasing interest, not least because their physicochemical properties can be selectively and temporally controlled by a non-invasive stimulus. Most existing immobilization strategies involve the chemical attachment of light-responsive moieties to the surface, although this approach often suffers from a low surface concentration of active species or a high inhomogeneity of applied coatings. Herein, electropolymerization of carbazoles as a facile and rapid approach for preparing light-responsive azo-based surface coatings is presented. The electrochemical oxidative polymerization of bis-carbazole containing azo-monomers yields stable films, in which the photochemical properties and specific pH sensitivity of azo molecular switches are retained. Moreover, the molecular design enables electrocatalytic control over Z→E azo double bond isomerization facilitated by the conductive polycarbazole backbone. Ultimately, the high degree of control over macromolecular properties yields conductive surface coatings responsive to a range of stimuli, showing great promise as a strategy for versatile application in organic electronics.
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Affiliation(s)
- Anna Gibalova
- Organic Chemistry Institute and Center for Soft Nanoscience, Westfälische Wilhelms-Universität Münster, Busso-Peus-Straße 10, 48149, Münster, Germany
| | - Luuk Kortekaas
- Organic Chemistry Institute and Center for Soft Nanoscience, Westfälische Wilhelms-Universität Münster, Busso-Peus-Straße 10, 48149, Münster, Germany
- Materials Chemistry, Faculty of Science and Engineering, University of Groningen, Nijenborgh 4, 9747 AG, Groningen, The Netherlands
| | - Julian Simke
- Organic Chemistry Institute and Center for Soft Nanoscience, Westfälische Wilhelms-Universität Münster, Busso-Peus-Straße 10, 48149, Münster, Germany
| | - Bart Jan Ravoo
- Organic Chemistry Institute and Center for Soft Nanoscience, Westfälische Wilhelms-Universität Münster, Busso-Peus-Straße 10, 48149, Münster, Germany
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4
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Mukherjee A, Seyfried MD, Ravoo BJ. Azoheteroarene and Diazocine Molecular Photoswitches: Self-Assembly, Responsive Materials and Photopharmacology. Angew Chem Int Ed Engl 2023; 62:e202304437. [PMID: 37212536 DOI: 10.1002/anie.202304437] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 05/19/2023] [Accepted: 05/22/2023] [Indexed: 05/23/2023]
Abstract
Aromatic units tethered with an azo (-N=N-) functionality comprise a unique class of compounds, known as molecular photoswitches, exhibiting a reversible transformation between their E- and Z-isomers in response to photo-irradiation. Photoswitches have been explored extensively in the recent past to prepare dynamic self-assembled materials, optoelectronic devices, responsive biomaterials, and more. Most of such materials involve azobenzenes as the molecular photoswitch and to date, SciFinder lists more than 7000 articles and 1000 patents. Subsequently, a great deal of effort has been invested to improve the photo-isomerization efficiency and related mesoscopic properties of azobenzenes. Recently, azoheteroarenes and cyclic azobenzenes, such as arylazopyrazoles, arylazoisoxazoles, arylazopyridines, and diazocines, have emerged as second generation molecular photoswitches beyond conventional azobenzenes. These photoswitches offer distinct photoswitching behavior and responsive properties which make them highly promising candidates for multifaceted applications ranging from photoresponsive materials to photopharmacophores. In this minireview, we introduce the structural refinement and photoresponsive properties of azoheteroarenes and diazocines and summarize the state-of-the-art on utilizing these photoswitches as responsive building blocks in supramolecular assembly, material science and photopharmacology, highlighting their versatile photochemical behavior, enhanced functionality, and latest applications.
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Affiliation(s)
- Anurag Mukherjee
- Organisch-Chemisches Institut and Center for Soft Nanoscience (SoN), Westfälische Wilhelms-Universität Münster Corrensstraße 36, 48149, Münster, Germany
| | - Maximilian D Seyfried
- Organisch-Chemisches Institut and Center for Soft Nanoscience (SoN), Westfälische Wilhelms-Universität Münster Corrensstraße 36, 48149, Münster, Germany
| | - Bart Jan Ravoo
- Organisch-Chemisches Institut and Center for Soft Nanoscience (SoN), Westfälische Wilhelms-Universität Münster Corrensstraße 36, 48149, Münster, Germany
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5
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Arndt NB, Adolphs T, Arlinghaus HF, Heidrich B, Ravoo BJ. Arylazopyrazole-Modified Thiolactone Acrylate Copolymer Brushes for Tuneable and Photoresponsive Wettability of Glass Surfaces. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:5342-5351. [PMID: 37011284 DOI: 10.1021/acs.langmuir.2c03400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Photoswitches have long been employed in coatings for surfaces and substrates to harness light as a versatile stimulus to induce responsive behavior. We previously demonstrated the viability of arylazopyrazole (AAP) as a photoswitch in self-assembled monolayers (SAMs) on silicon and glass surfaces for photoresponsive wetting applications. We now aim to transfer the excellent photophysical properties of AAPs to polymer brush coatings. Compared to SAMs, polymer brushes offer enhanced stability and an increase of the thickness and density of the functional organic layer. In this work, we present thiolactone acrylate copolymer brushes which can be post-modified with AAP amines as well as hydrophobic acrylates, making use of the unique chemistry of the thiolactones. This strategy enables photoresponsive wetting with a tuneable range of contact angle change on glass substrates. We show the successful synthesis of thiolactone hydroxyethyl acrylate copolymer brushes by means of surface-initiated atom-transfer radical polymerization with the option to either prepare homogeneous brushes or to prepare micrometer-sized brush patterns by microcontact printing. The polymer brushes were analyzed by atomic force microscopy, time-of-flight secondary ion spectrometry, and X-ray photoelectron spectroscopy. Photoresponsive behavior imparted to the brushes by means of post-modification with AAP is monitored by UV/vis spectroscopy, and wetting behavior of homogeneous brushes is measured by static and dynamic contact angle measurements. The brushes show an average change in static contact angle of around 13° between E and Z isomer of the AAP photoswitch for at least five cycles, while the range of contact angle change can be fine-tuned between 53.5°/66.5° (E/Z) and 81.5°/94.8° (E/Z) by post-modification with hydrophobic acrylates.
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Affiliation(s)
- Niklas B Arndt
- Center for Soft Nanoscience and Organic Chemistry Institute, University of Münster, Busso-Peus-Straße 10, 48149 Münster, Germany
| | - Thorsten Adolphs
- Center for Soft Nanoscience and Physics Institute, University of Münster, Wilhelm-Klemm-Straße 10, 48149 Münster, Germany
| | - Heinrich F Arlinghaus
- Center for Soft Nanoscience and Physics Institute, University of Münster, Wilhelm-Klemm-Straße 10, 48149 Münster, Germany
| | - Bastian Heidrich
- MEET Battery Research Center, University of Münster, Corrensstraße 46, 48149 Münster, Germany
- Institute of Physical Chemistry, University of Münster, Corrensstraße 29, 48149 Münster, Germany
| | - Bart Jan Ravoo
- Center for Soft Nanoscience and Organic Chemistry Institute, University of Münster, Busso-Peus-Straße 10, 48149 Münster, Germany
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6
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Ritsema van Eck G, Chiappisi L, de Beer S. Fundamentals and Applications of Polymer Brushes in Air. ACS APPLIED POLYMER MATERIALS 2022; 4:3062-3087. [PMID: 35601464 PMCID: PMC9112284 DOI: 10.1021/acsapm.1c01615] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 01/03/2022] [Indexed: 05/22/2023]
Abstract
For several decades, high-density, end-tethered polymers, forming so-called polymer brushes, have inspired scientists to understand their properties and to translate them to applications. While earlier research focused on polymer brushes in liquids, it was recently recognized that these brushes can find application in air as well. In this review, we report on recent progress in unraveling fundamental concepts of brushes in air, such as their vapor-swelling and solvent partitioning. Moreover, we provide an overview of the plethora of applications in air (e.g., in sensing, separations or smart adhesives) where brushes can be key components. To conclude, we provide an outlook by identifying open questions and issues that, when solved, will pave the way for the large scale application of brushes in air.
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Affiliation(s)
- Guido
C. Ritsema van Eck
- Sustainable
Polymer Chemistry Group, Department of Molecules & Materials,
MESA+ Institute for Nanotechnology, University
of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands
| | - Leonardo Chiappisi
- Institut
Max von Laue - Paul Langevin, 71 avenue des Martyrs, 38042 Grenoble, France
| | - Sissi de Beer
- Sustainable
Polymer Chemistry Group, Department of Molecules & Materials,
MESA+ Institute for Nanotechnology, University
of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands
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7
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Deng X, Tang J, Guan W, Jiang W, Zhang M, Liu Y, Chen HL, Chen CL, Li Y, Liu K, Fang Y. Strong Dynamic Interfacial Adhesion by Polymeric Ionic Liquids under Extreme Conditions. ACS NANO 2022; 16:5303-5315. [PMID: 35302732 DOI: 10.1021/acsnano.1c10946] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Interfacial adhesion under extreme conditions has attracted increasing attention owing to its potential application of stopping leakages of oil or natural gas. However, interfacial adhesion is rarely stable at ultralow temperatures and in organic solvents, necessitating the elucidation of the molecular-level processes. Herein, we used the intermolecular force-control strategy to prepare four linear polymers by tuning the proportion of hydrogen bonding and the number of electrostatic sites. The obtained polymeric ion liquids displayed strong dynamic adhesion at various interfaces. They also efficiently tolerated organic solvents and ultracold temperatures. Highly reversible rheological behaviors are observed within a thermal cycle between high and ultracold temperatures. Temperature-dependent infrared spectra and theoretical calculation reveal thermal reversibility and interfacial adhesion/debonding processes at the molecular level, respectively. This intermolecular force-control strategy may be applied to produce environmentally adaptive functional materials for real applications.
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Affiliation(s)
- Xinling Deng
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, PR China
| | - Jiaqi Tang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, PR China
| | - Wang Guan
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, PR China
| | - Wenhe Jiang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, PR China
| | - Miaomiao Zhang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, PR China
| | - Yongkang Liu
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, PR China
| | - Hsin-Lang Chen
- De Ming Tong Information Ltd., Kaohsiung 80424, Taiwan, PR China
| | - Cheng-Lung Chen
- Department of Chemistry, National Sun Yat-sen University, Kaohsiung 80424, Taiwan, PR China
| | - Yuangang Li
- College of Chemistry and Chemical Engineering, Xi'an University of Science and Technology, Xi'an 710054, PR China
| | - Kaiqiang Liu
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, PR China
| | - Yu Fang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, PR China
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8
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Arndt NB, Schlüter F, Böckmann M, Adolphs T, Arlinghaus HF, Doltsinis NL, Ravoo BJ. Self-Assembled Monolayers of Arylazopyrazoles on Glass and Silicon Oxide: Photoisomerization and Photoresponsive Wettability. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:735-742. [PMID: 34989243 DOI: 10.1021/acs.langmuir.1c02651] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Surface coatings that respond to external influences and change their physical properties upon application of external stimuli are of great interest, with light being a particularly desirable choice. Photoswitches such as azobenzenes have been employed in a range of photoresponsive coatings. One striking change in physical property of many photoresponsive coatings is their responsive wettability upon illumination. In this work, we present photoswitchable self-assembled monolayers based on arylazopyrazoles (AAPs). In solution, AAPs offer significant improvements in terms of the photostationary state, thermal stability, and fatigue resistance. The AAP photoswitch is coupled to triethoxysilanes for an easy, one-step functionalization of glass and silicon oxide surfaces. We show the synthesis of AAP-based silanes and the successful surface functionalization, and we confirm the excellent photoswitchability of the AAPs in a self-assembled monolayer upon alternating irradiation with UV (365 nm) and green (520 nm) light. The self-assembled monolayers are investigated by UV/vis spectroscopy, X-ray photoelectron spectroscopy (XPS), time-of-flight secondary ion mass spectrometry (ToF-SIMS), and contact angle goniometry. We furthermore investigate the effect of substitution of the AAPs on the photoresponsive wetting behavior and compare this with density functional theory (DFT) calculations of the dipole moments of the AAPs.
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Affiliation(s)
- Niklas B Arndt
- Center for Soft Nanoscience and Organic Chemistry Institute, Westfälische Wilhelms-Universität Münster, Busso-Peus Straße 10, 48149 Münster, Germany
| | - Friederike Schlüter
- Center for Soft Nanoscience and Organic Chemistry Institute, Westfälische Wilhelms-Universität Münster, Busso-Peus Straße 10, 48149 Münster, Germany
| | - Marcus Böckmann
- Center for Soft Nanoscience and Institute of Solid State Theory, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Straße 10, 48149 Münster, Germany
| | - Thorsten Adolphs
- Center for Soft Nanoscience and Physics Institute, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Straße 10, 48149 Münster, Germany
| | - Heinrich F Arlinghaus
- Center for Soft Nanoscience and Physics Institute, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Straße 10, 48149 Münster, Germany
| | - Nikos L Doltsinis
- Center for Soft Nanoscience and Institute of Solid State Theory, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Straße 10, 48149 Münster, Germany
| | - Bart Jan Ravoo
- Center for Soft Nanoscience and Organic Chemistry Institute, Westfälische Wilhelms-Universität Münster, Busso-Peus Straße 10, 48149 Münster, Germany
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9
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Smenda J, Wolski K, Chajec K, Zapotoczny S. Preparation of Homopolymer, Block Copolymer, and Patterned Brushes Bearing Thiophene and Acetylene Groups Using Microliter Volumes of Reaction Mixtures. Polymers (Basel) 2021; 13:4458. [PMID: 34961009 PMCID: PMC8704565 DOI: 10.3390/polym13244458] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 12/11/2021] [Accepted: 12/15/2021] [Indexed: 12/03/2022] Open
Abstract
The synthesis of surface-grafted polymers with variable functionality requires the careful selection of polymerization methods that also enable spatially controlled grafting, which is crucial for the fabrication of, e.g., nano (micro) sensor or nanoelectronic devices. The development of versatile, simple, economical, and eco-friendly synthetic strategies is important for scaling up the production of such polymer brushes. We have recently shown that poly (3-methylthienyl methacrylate) (PMTM) and poly (3-trimethylsilyl-2-propynyl methacrylate) (PTPM) brushes with pendant thiophene and acetylene groups, respectively, could be used for the production of ladder-like conjugated brushes that are potentially useful in the mentioned applications. However, the previously developed syntheses of such brushes required the use of high volumes of reagents, elevated temperature, or high energy UV-B light. Therefore, we present here visible light-promoted metal-free surface-initiated ATRP (metal-free SI-ATRP) that allows the economical synthesis of PMTM and PTPM brushes utilizing only microliter volumes of reaction mixtures. The versatility of this approach was shown by the formation of homopolymers but also the block copolymer conjugated brushes (PMTM and PTPM blocks in both sequences) and patterned films using TEM grids serving as photomasks. A simple reaction setup with only a monomer, solvent, commercially available organic photocatalyst, and initiator decorated substrate makes the synthesis of these complex polymer structures achievable for non-experts and ready for scaling up.
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Affiliation(s)
| | - Karol Wolski
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland; (J.S.); (K.C.); (S.Z.)
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10
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Lai J, Huang S, Wu S, Li F, Dong S. Adhesion behaviour of bulk supramolecular polymers via pillar[5]arene-based molecular recognition. Chem Commun (Camb) 2021; 57:13317-13320. [PMID: 34812444 DOI: 10.1039/d1cc05518f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Pillar[n]arenes were rarely used as the building blocks for supramolecular adhesives. Herein, pillar[5]arene-based supramolecular polymer materials with tough adhesion behaviours on different substrates were prepared, with adhesion strengths up to 4.75 MPa. Strong and long-term dichloromethane-resistant adhesion performances were successfully obtained.
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Affiliation(s)
- Jinlei Lai
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, Hunan, P. R. China.
| | - Shiyu Huang
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, Hunan, P. R. China.
| | - Shuanggen Wu
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, Hunan, P. R. China.
| | - Fenfang Li
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, Hunan, P. R. China
| | - Shengyi Dong
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, Hunan, P. R. China.
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11
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Solid-state photoswitching in arylazopyrazole-embedded polydimethylsiloxane composite thin films. J SOLID STATE CHEM 2021. [DOI: 10.1016/j.jssc.2021.122519] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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12
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Wang J, Liu J, Wang M, Qiu Y, Kong J, Zhang X. A host guest interaction enhanced polymerization amplification for electrochemical detection of cocaine. Anal Chim Acta 2021; 1184:339041. [PMID: 34625250 DOI: 10.1016/j.aca.2021.339041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Revised: 09/01/2021] [Accepted: 09/06/2021] [Indexed: 10/20/2022]
Abstract
Cocaine (Coc) is one of the illegal drugs and is harmful to digestive, immune, cardiovascular and urogenital systems. To achieve drug abuse control and legal action, it is essential to develop an effective method for cocaine analysis. In this work, an aptasensor has been developed using atom transfer radical polymerization (ATRP) based on host-guest chemistry for electrochemical analysis of cocaine. The NH2-DNA (Apt1) was immobilized on the indium tin oxide (ITO) electrode via addition reaction, and Fc-DNA (Apt2) was introduced to ITO relying on the specific recognition of cocaine. The Apt2 can initiate host-guest chemistry between Apt2 and ATRP initiators (β-CD-Br15), then the β-CD-Br15 further triggers ATRP. Moreover, ATRP avoids the sluggish kinetics and poor coupling capability sustained. The result shows a sensitive and selective analysis of cocaine within a linear range from 0.1 ng/mL to 10 μg/mL (R2 = 0.9985), with the detection limit down to 0.0335 ng/mL. Thus, this strategy provides a universal method for the analysis of illegal drugs.
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Affiliation(s)
- Jiao Wang
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu, 210094, PR China
| | - Jingliang Liu
- School of Environmental Science, Nanjing Xiaozhuang University, Nanjing, 211171, PR China
| | - Meng Wang
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu, 210094, PR China
| | - Yunliang Qiu
- Department of Criminal Science and Technology, Nanjing Forest Police College, Nanjing, 210023, PR China
| | - Jinming Kong
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu, 210094, PR China.
| | - Xueji Zhang
- School of Biomedical Engineering, Shenzhen University Health Science Center, Shenzhen, Guangdong, 518060, PR China
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13
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Gately TJ, Li W, Mostafavi SH, Bardeen CJ. Reversible Adhesion Switching Using Spiropyran Photoisomerization in a High Glass Transition Temperature Polymer. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c01262] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Thomas J. Gately
- Department of Chemistry, University of California, Riverside, Riverside, California 92521, United States
| | - Wangxiang Li
- Department of Chemistry, University of California, Riverside, Riverside, California 92521, United States
| | - Seyed Hossein Mostafavi
- Department of Bioengineering, University of California, Riverside, Riverside, California 92521, United States
| | - Christopher J. Bardeen
- Department of Chemistry, University of California, Riverside, Riverside, California 92521, United States
- Materials Science and Engineering Program, University of California, Riverside, Riverside, California 92521, United States
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14
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Kurka DW, Niehues M, Kudruk S, Gerke V, Ravoo BJ. Polythiolactone-Decorated Silica Particles: A Versatile Approach for Surface Functionalization, Catalysis and Encapsulation. Chemistry 2021; 27:7667-7676. [PMID: 33788322 PMCID: PMC8252643 DOI: 10.1002/chem.202100547] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Indexed: 12/29/2022]
Abstract
The surface chemistry of colloidal silica has tremendous effects on its properties and applications. Commonly the design of silica particles is based on their de novo synthesis followed by surface functionalization leading to tailormade properties for a specific purpose. Here, the design of robust "precursor" polymer-decorated silica nano- and microparticles is demonstrated, which allows for easy post-modification by polymer embedded thiolactone chemistry. To obtain this organic-inorganic hybrid material, silica particles (SiO2 P) were functionalized via surface-initiated atom transfer radical polymerization (SI-ATRP) with poly(2-hydroxyethyl acrylate) (PHEA)-poly(thiolactone acrylamide (PThlAm) co-polymer brushes. Exploiting the versatility of thiolactone post-modification, a system was developed that could be used in three exemplary applications: 1) the straightforward molecular post-functionalization to tune the surface polarity, and therefore the dispersibility in various solvents; 2) the immobilization of metal nanoparticles into the polymer brushes via the in situ formation of free thiols that preserved catalytic activity in a model reaction; 3) the formation of redox-responsive, permeable polymer capsules by crosslinking the thiolactone moieties with cystamine dihydrochloride (CDH) followed by dissolution of the silica core.
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Affiliation(s)
- Dustin Werner Kurka
- Organic Chemistry Institute/Center for Soft NanoscienceWestfälische Wilhelms-Universität MünsterCorrensstraße 3648149Münster
- Busso-Peus-Straße 1048149MünsterGermany
| | - Maximilian Niehues
- Organic Chemistry Institute/Center for Soft NanoscienceWestfälische Wilhelms-Universität MünsterCorrensstraße 3648149Münster
- Busso-Peus-Straße 1048149MünsterGermany
| | - Sergej Kudruk
- Institute of Medical Biochemistry, Center for Molecular Biology of InflammationWestfälische Wilhelms-Universität MünsterVon-Esmarch-Straße 5648149 MünsterGermany
| | - Volker Gerke
- Institute of Medical Biochemistry, Center for Molecular Biology of InflammationWestfälische Wilhelms-Universität MünsterVon-Esmarch-Straße 5648149 MünsterGermany
| | - Bart Jan Ravoo
- Organic Chemistry Institute/Center for Soft NanoscienceWestfälische Wilhelms-Universität MünsterCorrensstraße 3648149Münster
- Busso-Peus-Straße 1048149MünsterGermany
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15
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Yu Y, Brió Pérez M, Cao C, de Beer S. Switching (bio-) adhesion and friction in liquid by stimulus responsive polymer coatings. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110298] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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16
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Macromolecular engineering in functional polymers via ‘click chemistry’ using triazolinedione derivatives. Prog Polym Sci 2021. [DOI: 10.1016/j.progpolymsci.2020.101343] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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17
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Gong T, Cheng R, Wang X, Li J, Liang W, Wei Z, Shuang S, Wang Y, Guo R. Supramolecular-interaction-mediated aggregation of anticarcinogens on triformyl cholic acid-functionalized Fe 3O 4 nanoparticles and their dual-targeting treatment for liver cancer. NEW J CHEM 2021. [DOI: 10.1039/d1nj00248a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Herein, triformyl cholic acid-modified Fe3O4 nanoparticles (TCA-MNPs) were first constructed and developed as a novel drug carrier, possessing a high loading capacity, and the synergistic targeted therapy of hepatoma cells in vitro and in vivo.
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Affiliation(s)
- Tao Gong
- Department of Biochemistry and Molecular Biology
- Shanxi Medical University
- Taiyuan 030001
- China
| | - Rina Cheng
- Department of Biochemistry and Molecular Biology
- Shanxi Medical University
- Taiyuan 030001
- China
| | - Xiaoyu Wang
- Department of Biochemistry and Molecular Biology
- Shanxi Medical University
- Taiyuan 030001
- China
| | - Jing Li
- Department of Chemistry
- Institute of Environmental Science
- Shanxi University
- Taiyuan 030006
- P. R. China
| | - Wenting Liang
- Department of Chemistry
- Institute of Environmental Science
- Shanxi University
- Taiyuan 030006
- P. R. China
| | - Zhihong Wei
- Department of Chemistry
- Institute of Environmental Science
- Shanxi University
- Taiyuan 030006
- P. R. China
| | - Shaomin Shuang
- Department of Chemistry
- Institute of Environmental Science
- Shanxi University
- Taiyuan 030006
- P. R. China
| | - Yuyao Wang
- Department of Biochemistry and Molecular Biology
- Shanxi Medical University
- Taiyuan 030001
- China
| | - Rui Guo
- Department of Biochemistry and Molecular Biology
- Shanxi Medical University
- Taiyuan 030001
- China
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18
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Valle F, Tortorella S, Scala A, Cordaro A, Barbalinardo M, Biscarini F, Mazzaglia A. Amphiphilic cationic cyclodextrin nanovesicles: a versatile cue for guiding cell adhesion. NANOSCALE ADVANCES 2020; 2:5897-5904. [PMID: 36133883 PMCID: PMC9417668 DOI: 10.1039/d0na00623h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 11/12/2020] [Indexed: 06/16/2023]
Abstract
It is well known that amphiphilic cationic β-cyclodextrins (amβCDs) form nanovesicles able to release their cargo in aqueous solution upon applying different stimuli. In addition they can be selectively positioned onto substrates by unconventional soft lithography. This makes them a powerful tool for designing environments where different cues can be externally supplied to the cells helping to achieve good control of their fate. Lithographically controlled wetting (LCW) of amβCD nanovesicles loaded with fluorescein isothiocyanate (FITC), amβCD/FITC, has been used here to fabricate geometrically functionalized surfaces, thus achieving multiscale control of the cell environment. The amβCD functionalization was strongly influenced by the surface energy of the underlying substrates that, according to their hydrophobicity, orient the amβCD in a different way, thus "offering" different portions to the cells. The structure of the pattern was characterized both over large scales exploiting the FITC fluorescence and at the nanoscale by atomic force microscopy. Cell guidance and aCD/FITC cell internalization were demonstrated in human neuroblastoma SHSY5Y cells.
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Affiliation(s)
- Francesco Valle
- Consiglio Nazionale delle Ricerche, Istituto per lo Studio dei Materiali Nanostrutturati (CNR-ISMN) Via P. Gobetti 101 40129 Bologna Italy
- Consorzio Interuniversitario per lo Sviluppo dei Sistemi a Grande Interfase (CSGI) Firenze Italy
| | - Silvia Tortorella
- Dipartimento di Chimica Industriale "Toso Montanari", Università di Bologna "Alma Mater Studiorum" Via Zamboni 33 40126 Bologna Italy
| | - Angela Scala
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università degli Studi di Messina Viale F. Stagno D'Alcontres, 31 98166 Messina Italy
| | - Annalaura Cordaro
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università degli Studi di Messina Viale F. Stagno D'Alcontres, 31 98166 Messina Italy
- Consiglio Nazionale delle Ricerche, Istituto per lo Studio dei Materiali Nanostrutturati (CNR-ISMN) c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università degli Studi di Messina Viale F. Stagno D'Alcontres, 31 98166 Messina Italy
| | - Marianna Barbalinardo
- Consiglio Nazionale delle Ricerche, Istituto per lo Studio dei Materiali Nanostrutturati (CNR-ISMN) Via P. Gobetti 101 40129 Bologna Italy
| | - Fabio Biscarini
- Università di Modena e Reggio Emilia, Dipartimento di Scienze della Vita Via Campi 103 41125 Modena Italy
- Istituto Italiano di Tecnologia, Center for Translational Neurophysiology Via Fossato di Mortara 17-19 4412 Ferrara Italy
| | - Antonino Mazzaglia
- Consiglio Nazionale delle Ricerche, Istituto per lo Studio dei Materiali Nanostrutturati (CNR-ISMN) c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università degli Studi di Messina Viale F. Stagno D'Alcontres, 31 98166 Messina Italy
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19
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Affiliation(s)
- Zhiyao Yang
- College of Chemistry Key Laboratory for Radiation Physics Technology of Ministry of Education Sichuan University Chengdu 610064 P. R. China
| | - Zejiang Liu
- College of Chemistry Key Laboratory for Radiation Physics Technology of Ministry of Education Sichuan University Chengdu 610064 P. R. China
| | - Lihua Yuan
- College of Chemistry Key Laboratory for Radiation Physics Technology of Ministry of Education Sichuan University Chengdu 610064 P. R. China
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20
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Buten C, Kortekaas L, Ravoo BJ. Design of Active Interfaces Using Responsive Molecular Components. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1904957. [PMID: 31573115 DOI: 10.1002/adma.201904957] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 09/07/2019] [Indexed: 06/10/2023]
Abstract
Responsive interfaces are interfaces that show a defined and reversible change in physical properties in response to external stimuli. Typically, responsive interfaces result from the immobilization of responsive molecular components at the interface that translate a nanoscale signal into a macroscopic effect. Responsive interfaces can also be obtained if the topology of the interface can be reversibly changed using an external stimulus. As the surface of any material is its connection to the environment, responsive interfaces provide opportunities for interactive materials which are not only able to change properties upon demand, but also sense their environment and act autonomously. The application of responsive molecular components at interfaces, however, requires chemical and physical compatibility with the material surface of interest, posing a challenge not least in the retention of the responsive functionality. The state of the art in "active" interfaces which display responsive wettability, permeability, or adhesion is discussed, with a particular emphasis on microscale and nanoscale patterning since patterned interfaces can give rise to unique material properties. Finally, perspectives in the development of responsive interfaces, as well as promising approaches for bypassing the most prominent challenges are discussed.
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Affiliation(s)
- Christoph Buten
- Center for Soft Nanoscience and Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Busso-Peus-Straße 10, 48149, Münster, Germany
| | - Luuk Kortekaas
- Center for Soft Nanoscience and Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Busso-Peus-Straße 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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21
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Gerkman MA, Gibson RSL, Calbo J, Shi Y, Fuchter MJ, Han GGD. Arylazopyrazoles for Long-Term Thermal Energy Storage and Optically Triggered Heat Release below 0 °C. J Am Chem Soc 2020; 142:8688-8695. [DOI: 10.1021/jacs.0c00374] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mihael A. Gerkman
- Department of Chemistry, Brandeis University, 415 South Street, Waltham, Massachusetts 02453, United States
| | - Rosina S. L. Gibson
- Molecular Sciences Research Hub, Department of Chemistry, Imperial College London, Wood Lane, London W12 0BZ, United Kingdom
| | - Joaquín Calbo
- Instituto de Ciencia Molecular, Universidad de Valencia, 46890 Paterna, Spain
| | - Yuran Shi
- Department of Chemistry, Brandeis University, 415 South Street, Waltham, Massachusetts 02453, United States
| | - Matthew J. Fuchter
- Molecular Sciences Research Hub, Department of Chemistry, Imperial College London, Wood Lane, London W12 0BZ, United Kingdom
| | - Grace G. D. Han
- Department of Chemistry, Brandeis University, 415 South Street, Waltham, Massachusetts 02453, United States
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22
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Kurka DW, Niehues M, Ravoo BJ. Self-Assembly of Colloidal Molecules Based on Host-Guest Chemistry and Geometric Constraints. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:3924-3931. [PMID: 32182073 DOI: 10.1021/acs.langmuir.9b03891] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The preparation of colloidal molecules (CMs), that is, clusters of colloids with a defined aggregation number and configuration, is of continued and significant interest in colloid chemistry and materials science and numerous interactions have been utilized to drive their (self-)assembly. However, only very few reports are available on the assembly of CMs based on host-guest chemistry. In this paper, we investigate the assembly of like-charged silica particles into well-defined, core-satellite ABn-type CMs in water, mediated by host-guest interactions and geometric constraints. Exploiting the inherent dynamics of noncovalent attraction and making use of a soft polymer shell to enhance multivalent host-guest interactions, we successfully synthesized AB3, AB4, and AB6 CMs by selecting the appropriate size ratio of satellite to core particles.
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Affiliation(s)
- Dustin W Kurka
- Organic Chemistry Institute and Center for Soft Nanoscience, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149 Münster, Germany
| | - Maximilian Niehues
- Organic Chemistry Institute and Center for Soft Nanoscience, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149 Münster, Germany
| | - Bart Jan Ravoo
- Organic Chemistry Institute and Center for Soft Nanoscience, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149 Münster, Germany
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23
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Kunfi A, Bernadett Vlocskó R, Keresztes Z, Mohai M, Bertóti I, Ábrahám Á, Kiss É, London G. Photoswitchable Macroscopic Solid Surfaces Based On Azobenzene-Functionalized Polydopamine/Gold Nanoparticle Composite Materials: Formation, Isomerization and Ligand Exchange. Chempluschem 2020; 85:797-805. [PMID: 31967410 DOI: 10.1002/cplu.201900674] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 01/07/2020] [Indexed: 12/21/2022]
Abstract
The facile preparation of dynamic interfaces is presented based on the combination of photoisomerizable azobenzenes and polydopamine (PDA)/Au nanoparticle composite materials. Azobenzenes with different spacer lengths (C3 , C6 ) and surface-binding groups (SH, NH2 ) were synthesized. The polymer layer on macroscopic quartz surface was prepared by the facile aerobic autopolymerisation of dopamine hydrochloride under basic conditions. The presence of redox-active catechol moieties meant that gold nanoparticles were formed on the polymer surface. The obtained UV-Vis spectroscopic results confirmed that following their successful assembly, the switching of azobenzenes on PDA/Au was not affected by the surface binding group and the spacer length of the azobenzene molecules under the measurement conditions. Furthermore, facilitated by the curved nature of the Au particles, the surface-bound azobenzene layer could be reconstructed by ligand-exchange processes, and the photochemical characterization of the mixed layer was performed.
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Affiliation(s)
- Attila Kunfi
- Institute of Organic Chemistry, Research Centre for Natural Sciences, Magyar tudósok körútja 2., 1117, Budapest, Hungary.,Department of Organic Chemistry, University of Szeged, Dóm tér 8, 6720, Szeged, Hungary
| | - Rita Bernadett Vlocskó
- Institute of Organic Chemistry, Research Centre for Natural Sciences, Magyar tudósok körútja 2., 1117, Budapest, Hungary
| | - Zsófia Keresztes
- Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Magyar tudósok körútja 2., 1117, Budapest, Hungary
| | - Miklós Mohai
- Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Magyar tudósok körútja 2., 1117, Budapest, Hungary
| | - Imre Bertóti
- Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Magyar tudósok körútja 2., 1117, Budapest, Hungary
| | - Ágnes Ábrahám
- Institute of Organic Chemistry, Research Centre for Natural Sciences, Magyar tudósok körútja 2., 1117, Budapest, Hungary.,Laboratory of Interfaces and Nanostructures, Eötvös Loránd University, Pázmány Péter stny. 1/A, 1117, Budapest, Hungary
| | - Éva Kiss
- Laboratory of Interfaces and Nanostructures, Eötvös Loránd University, Pázmány Péter stny. 1/A, 1117, Budapest, Hungary
| | - Gábor London
- Institute of Organic Chemistry, Research Centre for Natural Sciences, Magyar tudósok körútja 2., 1117, Budapest, Hungary
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24
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Yang WJ, Xu W, Tao X, Wang W, Hu Y, Li X, Kang ET, Wang L. Two-stage thiol-based click reactions for the preparation and adhesion of hydrogels. Polym Chem 2020. [DOI: 10.1039/c9py01503e] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Two-stage thiol-based click reactions have been employed as a facile strategy for hydrogel preparation and self-adhesion.
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Affiliation(s)
- Wen Jing Yang
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors
- Institute of Advanced Materials (IAM)
- Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM)
- Nanjing University of Posts and Telecommunications
- Nanjing
| | - Wenya Xu
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors
- Institute of Advanced Materials (IAM)
- Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM)
- Nanjing University of Posts and Telecommunications
- Nanjing
| | - Xi Tao
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors
- Institute of Advanced Materials (IAM)
- Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM)
- Nanjing University of Posts and Telecommunications
- Nanjing
| | - Wen Wang
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors
- Institute of Advanced Materials (IAM)
- Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM)
- Nanjing University of Posts and Telecommunications
- Nanjing
| | - Yaqin Hu
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors
- Institute of Advanced Materials (IAM)
- Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM)
- Nanjing University of Posts and Telecommunications
- Nanjing
| | - Xue Li
- Key Laboratory of Biomedical Polymers of Ministry of Education
- College of Chemistry and Molecular Science
- Wuhan University
- Wuhan
- China
| | - En-Tang Kang
- Department of Chemical & Biomolecular Engineering
- National University of Singapore
- Kent Ridge
- Singapore
| | - Lianhui Wang
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors
- Institute of Advanced Materials (IAM)
- Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM)
- Nanjing University of Posts and Telecommunications
- Nanjing
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25
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Sallee A, Ghebreyessus K. Photoresponsive Zn2+-specific metallohydrogels coassembled from imidazole containing phenylalanine and arylazopyrazole derivatives. Dalton Trans 2020; 49:10441-10451. [DOI: 10.1039/d0dt01809k] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Stimuli-responsive supramolecular gels and metallogels have been widely explored in the past decade, but the fabrication of metallogels with reversible photoresponsive properties remains largely unexplored.
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Affiliation(s)
- Ashanti Sallee
- Department of Chemistry and Biochemistry
- Hampton University
- Hampton
- USA
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26
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Rajak A, Karan CK, Theato P, Das A. Supramolecularly cross-linked amphiphilic block copolymer assembly by the dipolar interaction of a merocyanine dye. Polym Chem 2020. [DOI: 10.1039/c9py01492f] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Dipolar interaction driven dimerization of a merocyanine (MC) dye has been exploited to achieve non-covalently crosslinked stable micelles in water and reverse micelles in toluene with emissive properties from a MC-pendant amphiphilic block copolymer.
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Affiliation(s)
- Aritra Rajak
- School of Applied and Interdisciplinary Sciences
- Indian Association for the Cultivation of Science
- Kolkata-700032
- India
| | - Chandan Kumar Karan
- School of Applied and Interdisciplinary Sciences
- Indian Association for the Cultivation of Science
- Kolkata-700032
- India
| | - Patrick Theato
- Institute for Chemical Technology and Polymer Chemistry
- Karlsruhe Institute of Technology (KIT)
- D-76131 Karlsruhe
- Germany
- Soft Matter Synthesis Laboratory
| | - Anindita Das
- School of Applied and Interdisciplinary Sciences
- Indian Association for the Cultivation of Science
- Kolkata-700032
- India
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27
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Calbo J, Thawani AR, Gibson RSL, White AJP, Fuchter MJ. A combinatorial approach to improving the performance of azoarene photoswitches. Beilstein J Org Chem 2019; 15:2753-2764. [PMID: 31807208 PMCID: PMC6880842 DOI: 10.3762/bjoc.15.266] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Accepted: 10/28/2019] [Indexed: 01/06/2023] Open
Abstract
Azoarenes remain privileged photoswitches – molecules that can be interconverted between two states using light – enabling a huge range of light addressable multifunctional systems and materials. Two key innovations to improve the addressability and Z-isomer stability of the azoarenes have been ortho-substitution of the benzene ring(s) or replacement of one of the benzenes for a pyrazole (to give arylazopyrazole switches). Here we study the combination of such high-performance features within a single switch architecture. Through computational analysis and experimental measurements of representative examples, we demonstrate that ortho-benzene substitution of the arylazopyrazoles drastically increases the Z-isomer stability and allows further tuning of their addressability. This includes the discovery of new azopyrazoles with a Z-isomer thermal half-life of ≈46 years. Such results therefore define improved designs for high performance azo switches, which will allow for high precision optically addressable applications using such components.
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Affiliation(s)
- Joaquin Calbo
- Department of Materials, Imperial College London, London SW7 2AZ, United Kingdom
| | - Aditya R Thawani
- Department of Chemistry, Molecular Sciences Research Hub, White City Campus, Imperial College London, W12 0BZ, United Kingdom
| | - Rosina S L Gibson
- Department of Chemistry, Molecular Sciences Research Hub, White City Campus, Imperial College London, W12 0BZ, United Kingdom
| | - Andrew J P White
- Department of Chemistry, Molecular Sciences Research Hub, White City Campus, Imperial College London, W12 0BZ, United Kingdom
| | - Matthew J Fuchter
- Department of Chemistry, Molecular Sciences Research Hub, White City Campus, Imperial College London, W12 0BZ, United Kingdom
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28
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Hanopolskyi AI, De S, Białek MJ, Diskin-Posner Y, Avram L, Feller M, Klajn R. Reversible switching of arylazopyrazole within a metal-organic cage. Beilstein J Org Chem 2019; 15:2398-2407. [PMID: 31666874 PMCID: PMC6808206 DOI: 10.3762/bjoc.15.232] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Accepted: 09/26/2019] [Indexed: 12/19/2022] Open
Abstract
Arylazopyrazoles represent a new family of molecular photoswitches characterized by a near-quantitative conversion between two states and long thermal half-lives of the metastable state. Here, we investigated the behavior of a model arylazopyrazole in the presence of a self-assembled cage based on Pd–imidazole coordination. Owing to its high water solubility, the cage can solubilize the E isomer of arylazopyrazole, which, by itself, is not soluble in water. NMR spectroscopy and X-ray crystallography have independently demonstrated that each cage can encapsulate two molecules of E-arylazopyrazole. UV-induced switching to the Z isomer was accompanied by the release of one of the two guests from the cage and the formation of a 1:1 cage/Z-arylazopyrazole inclusion complex. DFT calculations suggest that this process involves a dramatic change in the conformation of the cage. Back-isomerization was induced with green light and resulted in the initial 1:2 cage/E-arylazopyrazole complex. This back-isomerization reaction also proceeded in the dark, with a rate significantly higher than in the absence of the cage.
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Affiliation(s)
- Anton I Hanopolskyi
- Department of Organic Chemistry, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Soumen De
- Department of Organic Chemistry, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Michał J Białek
- Department of Organic Chemistry, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Yael Diskin-Posner
- Chemical Research Support, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Liat Avram
- Chemical Research Support, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Moran Feller
- Department of Organic Chemistry, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Rafal Klajn
- Department of Organic Chemistry, Weizmann Institute of Science, Rehovot 76100, Israel
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29
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Mostafavi SH, Li W, Clark KD, Stricker F, Alaniz JRD, Bardeen CJ. Photoinduced Deadhesion of a Polymer Film Using a Photochromic Donor–Acceptor Stenhouse Adduct. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b00882] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
| | | | - Kyle D. Clark
- Department of Chemistry and Biochemistry, University of California Santa Barbara, Santa Barbara, California 93106-9510, United States
| | - Friedrich Stricker
- Department of Chemistry and Biochemistry, University of California Santa Barbara, Santa Barbara, California 93106-9510, United States
| | - Javier Read de Alaniz
- Department of Chemistry and Biochemistry, University of California Santa Barbara, Santa Barbara, California 93106-9510, United States
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β-Cyclodextrin functionalized coaxially electrospun poly(vinylidene fluoride) @ polystyrene membranes with higher mechanical performance for efficient removal of phenolphthalein. REACT FUNCT POLYM 2019. [DOI: 10.1016/j.reactfunctpolym.2019.05.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Lamping S, Buten C, Ravoo BJ. Functionalization and Patterning of Self-Assembled Monolayers and Polymer Brushes Using Microcontact Chemistry. Acc Chem Res 2019; 52:1336-1346. [PMID: 30969751 DOI: 10.1021/acs.accounts.9b00041] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Because the surface connects a material to its environment, the functionalization, modification, and patterning of surfaces is key to a wide range of materials applied in microelectronics, displays, sensing, microarrays, photovoltaics, catalysis, and other fields. Self-assembled monolayers (SAMs), which can be deposited on a wide range of inorganic materials, are only a few nanometers thick, yet they can radically change the properties of the resulting interface. Alternatively, thin polymer films composed of polymer brushes grown from the surface provide a more robust molecular modification of inorganic materials. For many applications, patterned SAMs or polymer brushes are desired. Over the past decade, our group has shown that both SAMs as well as polymer brushes can be patterned very efficiently using microcontact printing. In microcontact printing, a molecular "ink" is deposited on a suitable substrate using a microstructured elastomer stamp, which delivers the ink exclusively in the area of contact between stamp and substrate. In contrast to most types of lithography, microcontact printing does not require expensive equipment. Our work has shown that "microcontact chemistry" is a powerful additive surface patterning method, in which molecular inks react with a precursor SAM during printing so that surfaces can be modified with various orthogonal functional groups or molecular recognition sites in microscale patterns. Functional groups include reactive groups for click chemistry or photochemistry and initiators for radical polymerization. Molecular recognition sites include host-guest chemistry as well as biochemical ligands such as carbohydrates and biotin. In this Account, we present an overview of our research in this area including selected examples of work by other groups. In the first part, we review our work on the patterning of SAMs using microcontact chemistry, with a focus on click chemistry and photochemistry. We will show how cycloadditions, thiol-ene reactions, and tetrazole chemistry can be used to obtain versatile surface patterns. In the second part, we demonstrate that microcontact chemistry can be used to pattern polymer brushes. Among others, initiators for surface-induced nitroxide-mediated polymerization and atom transfer polymerization were printed and used to grow patterned polymer brushes with molecular recognition groups suitable for responsive surface adhesion. In the third part, we describe how SAMs and polymer brushes can be printed on microparticles instead of flat substrates so that Janus particles with functional patches can be obtained. Finally, we present a brief outlook on further developments expected in this field.
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Affiliation(s)
- Sebastian Lamping
- Center for Soft Nanoscience and Organic Chemistry Institute, Westfälische Wilhelms-Universität Münster, Busso-Peus-Strasse 10, 48149 Münster, Germany
| | - Christoph Buten
- Center for Soft Nanoscience and Organic Chemistry Institute, Westfälische Wilhelms-Universität Münster, Busso-Peus-Strasse 10, 48149 Münster, Germany
| | - Bart Jan Ravoo
- Center for Soft Nanoscience and Organic Chemistry Institute, Westfälische Wilhelms-Universität Münster, Busso-Peus-Strasse 10, 48149 Münster, Germany
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Chu C, Stricker L, Kirse TM, Hayduk M, Ravoo BJ. Light-Responsive Arylazopyrazole Gelators: From Organic to Aqueous Media and from Supramolecular to Dynamic Covalent Chemistry. Chemistry 2019; 25:6131-6140. [PMID: 30791165 PMCID: PMC6593461 DOI: 10.1002/chem.201806042] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Indexed: 01/09/2023]
Abstract
Versatile photoresponsive gels based on tripodal low molecular weight gelators (LMWGs) are reported. A cyclohexane-1,3,5-tricarboxamide (CTA) core provides face-to-face hydrogen bonding and a planar conformation, inducing the self-assembly of supramolecular polymers. The CTA core was substituted with three arylazopyrazole (AAP) arms. AAP is a molecular photoswitch that isomerizes reversibly under alternating UV and green light irradiation. The E isomer of AAP is planar, favoring the self-assembly, whereas the Z isomer has a twisted structure, leading to a disassembly of the supramolecular polymers. By using tailor-made molecular design of the tripodal gelator, light-responsive organogels and hydrogels were obtained. Additionally, in the case of the hydrogels, AAP was coupled to the core through hydrazones, so that the hydrogelator and, hence, the photoresponsive hydrogel could also be assembled and disassembled by using dynamic covalent chemistry.
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Affiliation(s)
- Chih‐Wei Chu
- Organic Chemistry Institute and Center for Soft Nanoscience (SoN)Westfälische Wilhelms-Universität MünsterCorrensstrasse 4048149MünsterGermany
| | - Lucas Stricker
- Organic Chemistry Institute and Center for Soft Nanoscience (SoN)Westfälische Wilhelms-Universität MünsterCorrensstrasse 4048149MünsterGermany
| | - Thomas M. Kirse
- Organic Chemistry Institute and Center for Soft Nanoscience (SoN)Westfälische Wilhelms-Universität MünsterCorrensstrasse 4048149MünsterGermany
| | - Matthias Hayduk
- Organic Chemistry Institute and Center for Soft Nanoscience (SoN)Westfälische Wilhelms-Universität MünsterCorrensstrasse 4048149MünsterGermany
| | - Bart Jan Ravoo
- Organic Chemistry Institute and Center for Soft Nanoscience (SoN)Westfälische Wilhelms-Universität MünsterCorrensstrasse 4048149MünsterGermany
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Gibson RSL, Calbo J, Fuchter MJ. Chemical
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Isomer Switching of Arylazopyrazoles Using Acid. CHEMPHOTOCHEM 2019. [DOI: 10.1002/cptc.201900065] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Rosina S. L. Gibson
- Department of Chemistry Imperial College LondonMolecular Sciences Research Hub White City Campus, Wood Lane London W12 0BZ UK
| | - Joaquín Calbo
- Department of MaterialsImperial College London Royal School of Mines Exhibition Road London SW7 2AZ UK
| | - Matthew J. Fuchter
- Department of Chemistry Imperial College LondonMolecular Sciences Research Hub White City Campus, Wood Lane London W12 0BZ UK
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