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Zeng H, Liang X, Roberts DA, Gillies ER, Müllner M. Self-Assembly of Rod-Coil Bottlebrush Copolymers into Degradable Nanodiscs with a UV-Triggered Self-Immolation Process. Angew Chem Int Ed Engl 2024; 63:e202318881. [PMID: 38320963 DOI: 10.1002/anie.202318881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 01/31/2024] [Accepted: 02/05/2024] [Indexed: 02/08/2024]
Abstract
Polymer nanodiscs, especially with stimuli-responsive features, represent an unexplored frontier in the nanomaterial landscape. Such 2D nanomaterials are considered highly promising for advanced biomedicine applications. Herein, we designed a rod-coil copolymer architecture based on an amphiphilic, tadpole-like bottlebrush copolymer, which can directly self-assemble into core-shell nanodiscs in an aqueous environment. As the bottlebrush side chains are made of amorphous, UV-responsive poly(ethyl glyoxylate) (PEtG) chains, they can undergo rapid end-to-end self-immolation upon light irradiation. This triggered nanodisc disassembly can be used to boost small molecule release from the nanodisc core, which is further aided by a morphological change from discs to spheres.
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Affiliation(s)
- Haoxiang Zeng
- Key Centre for Polymers and Colloids, School of Chemistry, The University of Sydney, 2006, Sydney, NSW, Australia
| | - Xiaoli Liang
- Department of Chemistry and Department of Chemical and Biochemical Engineering, The University of Western Ontario, N6A 5B7, London, Ontario, Canada
| | - Derrick A Roberts
- Key Centre for Polymers and Colloids, School of Chemistry, The University of Sydney, 2006, Sydney, NSW, Australia
| | - Elizabeth R Gillies
- Department of Chemistry and Department of Chemical and Biochemical Engineering, The University of Western Ontario, N6A 5B7, London, Ontario, Canada
| | - Markus Müllner
- Key Centre for Polymers and Colloids, School of Chemistry, The University of Sydney, 2006, Sydney, NSW, Australia
- The University of Sydney Nano Institute (Sydney Nano), The University of Sydney, 2006, Sydney, NSW, Australia
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Shan P, Lu Y, Lu W, Yin X, Liu H, Li D, Lian X, Wang W, Li Z, Li Z. Biodegradable and Light-Responsive Polymeric Nanoparticles for Environmentally Safe Herbicide Delivery. ACS Appl Mater Interfaces 2022; 14:43759-43770. [PMID: 36111970 DOI: 10.1021/acsami.2c12106] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
The low utilization efficiency of pesticides exerts an adverse impact on the environment and human health. Polymer-related controlled-release nanosized pesticide systems provide a promising and efficient way to overcome the problem. In this work, a biodegradable and light-responsive amphiphilic polymer was synthesized via 1,1,3,3-tetramethylguanidine-promoted polyesterification under mild conditions (low temperature, no vacuum, and no inert gas protection). We used this polymer to fabricate a light-triggered controlled-release nanosized pesticide system. The herbicide, 2,4-dichlorophenoxyacetic acid (2,4-D), was selected as a model drug to show its potential as a controlled-release pesticide system. It was found that the 2,4-D-loaded polymeric nanoparticles were stable without the treatment of UV, while the release rate of 2,4-D from the nanoparticles gradually increased after treatment with UV light. Pot trial showed that the 2,4-D-loaded polymer nanoparticles showed a good herbicidal effect. Finally, toxicity studies suggested that the polymer can reduce toxicity to nontarget organisms.
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Affiliation(s)
- Pengfei Shan
- School of Optometry and Ophthalmology and Eye Hospital, State Key Laboratory of Optometry and Vision Science, Wenzhou Medical University, Wenzhou 325027, China
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325027, China
| | - Yingwen Lu
- School of Optometry and Ophthalmology and Eye Hospital, State Key Laboratory of Optometry and Vision Science, Wenzhou Medical University, Wenzhou 325027, China
| | - Weilin Lu
- School of Optometry and Ophthalmology and Eye Hospital, State Key Laboratory of Optometry and Vision Science, Wenzhou Medical University, Wenzhou 325027, China
| | - Xiangping Yin
- School of Optometry and Ophthalmology and Eye Hospital, State Key Laboratory of Optometry and Vision Science, Wenzhou Medical University, Wenzhou 325027, China
| | - Haiwei Liu
- School of Optometry and Ophthalmology and Eye Hospital, State Key Laboratory of Optometry and Vision Science, Wenzhou Medical University, Wenzhou 325027, China
| | - Daai Li
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325027, China
| | - Xiaoyue Lian
- School of Optometry and Ophthalmology and Eye Hospital, State Key Laboratory of Optometry and Vision Science, Wenzhou Medical University, Wenzhou 325027, China
| | - Weiping Wang
- State Key Laboratory of Pharmaceutical Biotechnology and Dr. Li Dak-Sum Research Centre and Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR 999077, China
| | - Zhongyu Li
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325027, China
| | - Zhihui Li
- School of Optometry and Ophthalmology and Eye Hospital, State Key Laboratory of Optometry and Vision Science, Wenzhou Medical University, Wenzhou 325027, China
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Ren K, Blosser MC, Malmstadt N. Light-Triggered Unique Shape Transformation of Giant Polymersomes with Tubular Protrusions. Macromol Rapid Commun 2021; 42:e2100474. [PMID: 34553805 DOI: 10.1002/marc.202100474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 09/04/2021] [Indexed: 11/10/2022]
Abstract
Light-triggered unique shape transformation of calcein-loaded giant polymersomes with tubular protrusions, which serve as a reservoir membrane area during the shape transformation, is reported here. Under irradiation at the excitation wavelength of calcein, the tubular protrusions form strings of budded vesicles and then reintegrate into the mother vesicle. The initial giant polymersomes transform to two connected spherical vesicles via two pathways to alleviate the osmotic pressure imbalance across the vesicle membrane. The two connected spherical vesicles further transform to a mother vesicle with an inner daughter vesicle after switching off the light to relieve the bending energy. The finding provides a promising platform to mimic cell morphology changes.
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Affiliation(s)
- Kaixuan Ren
- Department of Polymer Materials, School of Materials Science and Engineering, Shanghai University, Shanghai, 200444, P. R. China.,Mork Family Department of Chemical Engineering and Materials Science, University of Southern California, 925 Bloom Walk, Los Angeles, CA, 90089-1211, USA
| | - Matthew C Blosser
- Mork Family Department of Chemical Engineering and Materials Science, University of Southern California, 925 Bloom Walk, Los Angeles, CA, 90089-1211, USA
| | - Noah Malmstadt
- Mork Family Department of Chemical Engineering and Materials Science, University of Southern California, 925 Bloom Walk, Los Angeles, CA, 90089-1211, USA.,Department of Chemistry, University of Southern California, 840 Downey Way, Los Angeles, CA, 90089-0744, USA.,Department of Biomedical Engineering, University of Southern California, 3650 McClintock Avenue, Los Angeles, CA, 90089-1111, USA
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Liu Y, Wang H, Liu P, Zhu H, Shi B, Hong X, Huang F. Azobenzene-Based Macrocyclic Arenes: Synthesis, Crystal Structures, and Light-Controlled Molecular Encapsulation and Release. Angew Chem Int Ed Engl 2021; 60:5766-5770. [PMID: 33295014 DOI: 10.1002/anie.202015597] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Indexed: 01/07/2023]
Abstract
Azobenzene (azo)-based macrocycles are highly fascinating in supramolecular chemistry because of their light-responsiveness. In this work, a series of azo-based macrocyclic arenes 1, 2, 3, and 4, distinguished by the substituted positions of azo groups, is rationally designed and synthesized via a fragment-cyclization method. From the crystal and computed structures of 1, 2, and 3, we observe that the cavity size of these azo-macrocycles decreases gradually upon E→Z photoisomerization. Moreover, light-controlled host-guest complexations between azo-macrocycle 1 and guest molecules (7,7,8,8-tetracyanoquinodimethane, terephthalonitrile) are successfully achieved. This work provides a simple and effective method to prepare azo-macrocycles, and the light-responsive molecular-encapsulation systems in this work may further advance the design and applications of novel photo-responsive host-guest systems.
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Affiliation(s)
- Yuezhou Liu
- State Key Laboratory of Chemical Engineering, Center for Chemistry of High-Performance & Novel Materials, Department of Chemistry, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Hongliang Wang
- Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
| | - Peiren Liu
- State Key Laboratory of Chemical Engineering, Center for Chemistry of High-Performance & Novel Materials, Department of Chemistry, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Huangtianzhi Zhu
- State Key Laboratory of Chemical Engineering, Center for Chemistry of High-Performance & Novel Materials, Department of Chemistry, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Bingbing Shi
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, 730070, China
| | - Xin Hong
- Department of Chemistry, Zhejiang University, Hangzhou, 310058, China.,State Key Laboratory of Clean Energy Utilization, Zhejiang University, Zheda Road 38, Hangzhou, 310027, China
| | - Feihe Huang
- State Key Laboratory of Chemical Engineering, Center for Chemistry of High-Performance & Novel Materials, Department of Chemistry, Zhejiang University, Hangzhou, 310027, P. R. China.,Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou, 450001, P. R. China
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5
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Mariani G, Krieger A, Moldenhauer D, Schweins R, Gröhn F. Light-Responsive Shape: From Micrometer-Long Nanocylinders to Compact Particles in Electrostatic Self-Assembly. Macromol Rapid Commun 2018; 39:e1700860. [PMID: 29504172 DOI: 10.1002/marc.201700860] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2017] [Revised: 02/02/2018] [Indexed: 11/07/2022]
Abstract
A light-triggered shape change of supramolecular nanostructures is achieved through electrostatically self-assembly of linear polyelectrolytes and oppositely charged dyes in aqueous solution: Upon UV-irradiation, 1-µm-long, flexible cylinders with a cross-section of 10 nm convert into ellipsoids of 400 nm × 40 nm. The nano-object shape is encoded in the molecular dye structure.
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Affiliation(s)
- Giacomo Mariani
- Department of Chemistry and Pharmacy and Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, D-91058, Erlangen, Germany
- Institut Laue-Langevin DS/LSS, 71 avenue des Martyrs, 38000, Grenoble, France
| | - Anja Krieger
- Department of Chemistry and Pharmacy and Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, D-91058, Erlangen, Germany
| | - Daniel Moldenhauer
- Department of Chemistry and Pharmacy and Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, D-91058, Erlangen, Germany
| | - Ralf Schweins
- Institut Laue-Langevin DS/LSS, 71 avenue des Martyrs, 38000, Grenoble, France
| | - Franziska Gröhn
- Department of Chemistry and Pharmacy and Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, D-91058, Erlangen, Germany
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Dübner M, Gevrek TN, Sanyal A, Spencer ND, Padeste C. Fabrication of Thiol-Ene "Clickable" Copolymer-Brush Nanostructures on Polymeric Substrates via Extreme Ultraviolet Interference Lithography. ACS Appl Mater Interfaces 2015; 7:11337-11345. [PMID: 25978723 DOI: 10.1021/acsami.5b01804] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We demonstrate a new approach to grafting thiol-reactive nanopatterned copolymer-brush structures on polymeric substrates by means of extreme ultraviolet (EUV) interference lithography. The copolymer brushes were designed to contain maleimide functional groups as thiol-reactive centers. Fluoropolymer films were exposed to EUV radiation at the X-ray interference lithography beamline (XIL-II) at the Swiss Light Source, in order to create radical patterns on their surfaces. The radicals served as initiators for the copolymerization of thiol-ene "clickable" brushes, composed of a furan-protected maleimide monomer (FuMaMA) and different methacrylates, namely, methyl methacrylate (MMA), ethylene glycol methyl ether methacrylate (EGMA), or poly(ethylene glycol) methyl ether methacrylate (PEGMA). Copolymerization with ethylene-glycol-containing monomers provides antibiofouling properties to these surfaces. The number of reactive centers on the grafted brush structures can be tailored by varying the monomer ratios in the feed. Grafted copolymers were characterized by using attenuated total reflection infrared (ATR-IR) spectroscopy. The reactive maleimide methacrylate (MaMA) units were utilized to conjugate thiol-containing moieties using the nucleophilic Michael-addition reaction, which proceeds at room temperature without the need for any metal-based catalyst. Using this approach, a variety of functionalities was introduced to yield polyelectrolytes, as well as fluorescent and light-responsive polymer-brush structures. Functionalization of the brush structures was demonstrated via ATR-IR and UV-vis spectroscopy and fluorescence microscopy, and was also indicated by a color switch. Furthermore, grafted surfaces were generated via plasma activation, showing a strongly increased wettability for polyelectrolytes and a reversible switch in static water contact angle (CA) of up to 18° for P(EGMA-co-MaMA-SP) brushes, upon exposure to alternating visible and UV-light irradiation.
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Affiliation(s)
- Matthias Dübner
- †Laboratory for Micro- and Nanotechnology, Paul Scherrer Institute, CH-5232 Villigen PSI, Switzerland
- ‡Laboratory for Surface Science and Technology, Department of Materials, ETH Zürich, CH-8093 Zürich, Switzerland
| | - Tugce N Gevrek
- §Department of Chemistry, Bogazici University, Bebek, 34342 Istanbul, Turkey
| | - Amitav Sanyal
- §Department of Chemistry, Bogazici University, Bebek, 34342 Istanbul, Turkey
| | - Nicholas D Spencer
- ‡Laboratory for Surface Science and Technology, Department of Materials, ETH Zürich, CH-8093 Zürich, Switzerland
| | - Celestino Padeste
- †Laboratory for Micro- and Nanotechnology, Paul Scherrer Institute, CH-5232 Villigen PSI, Switzerland
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