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McLuskie A, Brodie CN, Tricarico M, Gao C, Peters G, Naden AB, Mackay CL, Tan JC, Kumar A. Manganese catalysed dehydrogenative synthesis of polyureas from diformamide and diamines. Catal Sci Technol 2023; 13:3551-3557. [PMID: 37342794 PMCID: PMC10278093 DOI: 10.1039/d3cy00284e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Accepted: 05/12/2023] [Indexed: 06/23/2023]
Abstract
We report here the synthesis of polyureas from the dehydrogenative coupling of diamines and diformamides. The reaction is catalysed by a manganese pincer complex and releases H2 gas as the only by-product making the process atom-economic and sustainable. The reported method is greener in comparison to the current state-of-the-art production routes that involve diisocyanate and phosgene feedstock. We also report here the physical, morphological, and mechanical properties of synthesized polyureas. Based on our mechanistic studies, we suggest that the reaction proceeds via isocyanate intermediates formed by the manganese catalysed dehydrogenation of formamides.
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Affiliation(s)
- Angus McLuskie
- School of Chemistry, University of St. Andrews North Haugh St. Andrews KY169ST UK
| | - Claire N Brodie
- School of Chemistry, University of St. Andrews North Haugh St. Andrews KY169ST UK
| | - Michele Tricarico
- Department of Engineering Science, University of Oxford Parks Road Oxford OX13PJ UK
| | - Chang Gao
- School of Chemistry, University of St. Andrews North Haugh St. Andrews KY169ST UK
| | - Gavin Peters
- School of Chemistry, University of St. Andrews North Haugh St. Andrews KY169ST UK
| | - Aaron B Naden
- School of Chemistry, University of St. Andrews North Haugh St. Andrews KY169ST UK
| | | | - Jin-Chong Tan
- Department of Engineering Science, University of Oxford Parks Road Oxford OX13PJ UK
| | - Amit Kumar
- School of Chemistry, University of St. Andrews North Haugh St. Andrews KY169ST UK
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2
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Bonelli J, Ortega-Forte E, Rovira A, Bosch M, Torres O, Cuscó C, Rocas J, Ruiz J, Marchán V. Improving Photodynamic Therapy Anticancer Activity of a Mitochondria-Targeted Coumarin Photosensitizer Using a Polyurethane-Polyurea Hybrid Nanocarrier. Biomacromolecules 2022; 23:2900-2913. [PMID: 35695426 PMCID: PMC9277592 DOI: 10.1021/acs.biomac.2c00361] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
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Integration of photosensitizers
(PSs) within nanoscale delivery
systems offers great potential for overcoming some of the “Achiles’
heels” of photodynamic therapy (PDT). Herein, we have encapsulated
a mitochondria-targeted coumarin PS into amphoteric polyurethane–polyurea
hybrid nanocapsules (NCs) with the aim of developing novel nanoPDT
agents. The synthesis of coumarin-loaded NCs involved the nanoemulsification
of a suitable prepolymer in the presence of a PS without needing external
surfactants, and the resulting small nanoparticles showed improved
photostability compared with the free compound. Nanoencapsulation
reduced dark cytotoxicity of the coumarin PS and significantly improved
in vitro photoactivity with red light toward cancer cells, which resulted
in higher phototherapeutic indexes compared to free PS. Importantly,
this nanoformulation impaired tumoral growth of clinically relevant
three-dimensional multicellular tumor spheroids. Mitochondrial photodamage
along with reactive oxygen species (ROS) photogeneration was found
to trigger autophagy and apoptotic cell death of cancer cells.
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Affiliation(s)
- Joaquín Bonelli
- Departament de Química Inorgànica i Orgànica, Secció de Química Orgànica, Institut de Biomedicina de la Universitat de Barcelona (IBUB), Universitat de Barcelona (UB), E-08028 Barcelona, Spain.,Nanobiotechnological Polymers Division, Ecopol Tech, S.L., El Foix Business Park, Indústria 7, L'Arboç del Penedès, 43720 Tarragona, Spain
| | - Enrique Ortega-Forte
- Departamento de Química Inorgánica, Universidad de Murcia, Institute for Bio-Health Research of Murcia (IMIB-Arrixaca), E-30071 Murcia, Spain
| | - Anna Rovira
- Departament de Química Inorgànica i Orgànica, Secció de Química Orgànica, Institut de Biomedicina de la Universitat de Barcelona (IBUB), Universitat de Barcelona (UB), E-08028 Barcelona, Spain
| | - Manel Bosch
- Unitat de Microscòpia Òptica Avançada, Centres Científics i Tecnològics (CCiTUB), Universitat de Barcelona (UB), E-08028 Barcelona, Spain
| | - Oriol Torres
- Nanobiotechnological Polymers Division, Ecopol Tech, S.L., El Foix Business Park, Indústria 7, L'Arboç del Penedès, 43720 Tarragona, Spain
| | - Cristina Cuscó
- Nanobiotechnological Polymers Division, Ecopol Tech, S.L., El Foix Business Park, Indústria 7, L'Arboç del Penedès, 43720 Tarragona, Spain
| | - Josep Rocas
- Nanobiotechnological Polymers Division, Ecopol Tech, S.L., El Foix Business Park, Indústria 7, L'Arboç del Penedès, 43720 Tarragona, Spain
| | - José Ruiz
- Departamento de Química Inorgánica, Universidad de Murcia, Institute for Bio-Health Research of Murcia (IMIB-Arrixaca), E-30071 Murcia, Spain
| | - Vicente Marchán
- Departament de Química Inorgànica i Orgànica, Secció de Química Orgànica, Institut de Biomedicina de la Universitat de Barcelona (IBUB), Universitat de Barcelona (UB), E-08028 Barcelona, Spain
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3
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Owen AE, Preiss A, McLuskie A, Gao C, Peters G, Bühl M, Kumar A. Manganese-Catalyzed Dehydrogenative Synthesis of Urea Derivatives and Polyureas. ACS Catal 2022. [DOI: 10.1021/acscatal.2c00850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | - Annika Preiss
- School of Chemistry, University of St. Andrews, North Haugh, St. Andrews KY169ST, U.K
| | - Angus McLuskie
- School of Chemistry, University of St. Andrews, North Haugh, St. Andrews KY169ST, U.K
| | - Chang Gao
- School of Chemistry, University of St. Andrews, North Haugh, St. Andrews KY169ST, U.K
| | - Gavin Peters
- School of Chemistry, University of St. Andrews, North Haugh, St. Andrews KY169ST, U.K
| | - Michael Bühl
- School of Chemistry, University of St. Andrews, North Haugh, St. Andrews KY169ST, U.K
| | - Amit Kumar
- School of Chemistry, University of St. Andrews, North Haugh, St. Andrews KY169ST, U.K
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Bonelli J, Ortega-Forte E, Vigueras G, Bosch M, Cutillas N, Rocas J, Ruiz J, Marchan V. Polyurethane-polyurea hybrid nanocapsules as efficient delivery systems of anticancer Ir(III) metallodrugs. Inorg Chem Front 2022. [DOI: 10.1039/d1qi01542g] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cyclometalated Ir(III) complexes hold great promise as an alternative to platinum metallodrugs for therapy and diagnosis of cancer. However, low aqueous solubility and poor cell membrane permeability difficult in vivo...
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Niculescu AG, Grumezescu AM. Polymer-Based Nanosystems-A Versatile Delivery Approach. MATERIALS (BASEL, SWITZERLAND) 2021; 14:6812. [PMID: 34832213 PMCID: PMC8619478 DOI: 10.3390/ma14226812] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 11/05/2021] [Accepted: 11/08/2021] [Indexed: 01/10/2023]
Abstract
Polymer-based nanoparticles of tailored size, morphology, and surface properties have attracted increasing attention as carriers for drugs, biomolecules, and genes. By protecting the payload from degradation and maintaining sustained and controlled release of the drug, polymeric nanoparticles can reduce drug clearance, increase their cargo's stability and solubility, prolong its half-life, and ensure optimal concentration at the target site. The inherent immunomodulatory properties of specific polymer nanoparticles, coupled with their drug encapsulation ability, have raised particular interest in vaccine delivery. This paper aims to review current and emerging drug delivery applications of both branched and linear, natural, and synthetic polymer nanostructures, focusing on their role in vaccine development.
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Affiliation(s)
- Adelina-Gabriela Niculescu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, Politehnica University of Bucharest, 011061 Bucharest, Romania;
| | - Alexandru Mihai Grumezescu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, Politehnica University of Bucharest, 011061 Bucharest, Romania;
- Research Institute of the University of Bucharest—ICUB, University of Bucharest, 050657 Bucharest, Romania
- Academy of Romanian Scientists, Ilfov no. 3, 50044 Bucharest, Romania
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Kumar A, Armstrong D, Peters G, Nagala M, Shirran S. Direct synthesis of polyureas from the dehydrogenative coupling of diamines and methanol. Chem Commun (Camb) 2021; 57:6153-6156. [PMID: 34042925 DOI: 10.1039/d1cc01121a] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
We report here the first example of the direct synthesis of polyureas from the dehydrogenative coupling of diamines and methanol using a ruthenium pincer catalyst. The present methodology replaces the use of toxic diisocyanates, conventionally used for the production of polyureas, with methanol, which is renewable, less toxic, and cheaper, making the overall process safer and more sustainable. Further advantages of the current method have been demonstrated by the synthesis of a renewable, a chiral, and the first 13C-labelled polyurea.
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Affiliation(s)
- Amit Kumar
- School of Chemistry, University of St. Andrews, North Haugh, St. Andrews, KY169ST, UK.
| | - Daniel Armstrong
- School of Chemistry, University of St. Andrews, North Haugh, St. Andrews, KY169ST, UK.
| | - Gavin Peters
- School of Chemistry, University of St. Andrews, North Haugh, St. Andrews, KY169ST, UK.
| | - Manjula Nagala
- BSRC Mass Spectrometry and Proteomics Facility, University of St. Andrews, North Haugh, St. Andrews, KY169ST, UK
| | - Sally Shirran
- BSRC Mass Spectrometry and Proteomics Facility, University of St. Andrews, North Haugh, St. Andrews, KY169ST, UK
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Multi-Smart and Scalable Bioligands-Free Nanomedical Platform for Intratumorally Targeted Tambjamine Delivery, a Difficult to Administrate Highly Cytotoxic Drug. Biomedicines 2021; 9:biomedicines9050508. [PMID: 34064518 PMCID: PMC8147975 DOI: 10.3390/biomedicines9050508] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 04/18/2021] [Accepted: 04/26/2021] [Indexed: 01/05/2023] Open
Abstract
Cancer is one of the leading causes of mortality worldwide due, in part, to limited success of some current therapeutic approaches. The clinical potential of many promising drugs is restricted by their systemic toxicity and lack of selectivity towards cancer cells, leading to insufficient drug concentration at the tumor site. To overcome these hurdles, we developed a novel drug delivery system based on polyurea/polyurethane nanocapsules (NCs) showing pH-synchronized amphoteric properties that facilitate their accumulation and selectivity into acidic tissues, such as tumor microenvironment. We have demonstrated that the anticancer drug used in this study, a hydrophobic anionophore named T21, increases its cytotoxic activity in acidic conditions when nanoencapsulated, which correlates with a more efficient cellular internalization. A biodistribution assay performed in mice has shown that the NCs are able to reach the tumor and the observed systemic toxicity of the free drug is significantly reduced in vivo when nanoencapsulated. Additionally, T21 antitumor activity is preserved, accompanied by tumor mass reduction compared to control mice. Altogether, this work shows these NCs as a potential drug delivery system able to reach the tumor microenvironment, reducing the undesired systemic toxic effects. Moreover, these nanosystems are prepared under scalable methodologies and straightforward process, and provide tumor selectivity through a smart mechanism independent of targeting ligands.
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Zhou X, Song Y, Wang D, Fang C, Xie L, Yao T, Zhang X, Zhang J. Functional nano‐fillers in waterborne polyurethane/acrylic composites and the thermal, mechanical, and dielectrical properties. J Appl Polym Sci 2021. [DOI: 10.1002/app.50822] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Xing Zhou
- Faculty of Printing, Packaging Engineering and Digital Media Technology Xi'an University of Technology Xi'an China
- School of Materials Science and Engineering Xi'an University of Technology Xi'an China
| | - Yonghua Song
- Faculty of Printing, Packaging Engineering and Digital Media Technology Xi'an University of Technology Xi'an China
| | - Dong Wang
- Faculty of Printing, Packaging Engineering and Digital Media Technology Xi'an University of Technology Xi'an China
- School of Materials Science and Engineering Xi'an University of Technology Xi'an China
| | - Changqing Fang
- School of Materials Science and Engineering Xi'an University of Technology Xi'an China
| | - Li Xie
- Faculty of Printing, Packaging Engineering and Digital Media Technology Xi'an University of Technology Xi'an China
| | - Taiping Yao
- Department of Electrical Engineering Northeast Electric Power University Jilin City Jilin China
| | - Xin Zhang
- Faculty of Printing, Packaging Engineering and Digital Media Technology Xi'an University of Technology Xi'an China
| | - Jiawei Zhang
- Department of Electrical Engineering Northeast Electric Power University Jilin City Jilin China
- Department of Electrical Engineering Xi'an University of Technology Xi'an Shanxi China
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Differential Interactions of Chiral Nanocapsules with DNA. Int J Mol Sci 2021; 22:ijms22020584. [PMID: 33430158 PMCID: PMC7827073 DOI: 10.3390/ijms22020584] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 12/29/2020] [Accepted: 12/30/2020] [Indexed: 01/18/2023] Open
Abstract
(1) Background: Chiral nanoparticular systems have recently emerged as a compelling platform for investigating stereospecific behavior at the nanoscopic level. We describe chiroselective supramolecular interactions that occur between DNA oligonucleotides and chiral polyurea nanocapsules. (2) Methods: We employ interfacial polyaddition reactions between toluene 2,4-diisocyanate and lysine enantiomers that occur in volatile oil-in-water nanoemulsions to synthesize hollow, solvent-free capsules with average sizes of approximately 300 nm and neutral surface potential. (3) Results: The resultant nanocapsules exhibit chiroptical activity and interact differentially with single stranded DNA oligonucleotides despite the lack of surface charge and, thus, the absence of significant electrostatic interactions. Preferential binding of DNA on D-polyurea nanocapsules compared to their L-counterparts is demonstrated by a fourfold increase in capsule size, a 50% higher rise in the absolute value of negative zeta potential (ζ-potential), and a three times lower free DNA concentration after equilibration with the excess of DNA. (4) Conclusions: We infer that the chirality of the novel polymeric nanocapsules affects their supramolecular interactions with DNA, possibly through modification of the surface morphology. These interactions can be exploited when developing carriers for gene therapy and theranostics. The resultant constructs are expected to be highly biocompatible due to their neutral potential and biodegradability of polyurea shells.
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10
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Feuser PE, Chiaradia V, Galvani NC, Scussel R, Machado-de-Ávila RA, de Oliveira D, Hermes de Araújo PH, Sayer C. In vitro cytotoxicity and hyperthermia studies of superparamagnetic poly(urea-urethane) nanoparticles obtained by miniemulsion polymerization in human erythrocytes and NIH3T3 and HeLa cells. INT J POLYM MATER PO 2020. [DOI: 10.1080/00914037.2020.1725763] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Paulo Emilio Feuser
- Department of Chemical Engineering and Food Engineering, Federal University of Santa Catarina, Florianópolis, Brazil
| | - Viviane Chiaradia
- Department of Chemical Engineering and Food Engineering, Federal University of Santa Catarina, Florianópolis, Brazil
| | - Nathalia Coral Galvani
- Postgraduate Program in Health Science, University of Southern Santa Catarina (UNESC), Criciuma, Brazil
| | - Rahisa Scussel
- Postgraduate Program in Health Science, University of Southern Santa Catarina (UNESC), Criciuma, Brazil
| | | | - Débora de Oliveira
- Department of Chemical Engineering and Food Engineering, Federal University of Santa Catarina, Florianópolis, Brazil
| | - Pedro H. Hermes de Araújo
- Department of Chemical Engineering and Food Engineering, Federal University of Santa Catarina, Florianópolis, Brazil
| | - Claudia Sayer
- Department of Chemical Engineering and Food Engineering, Federal University of Santa Catarina, Florianópolis, Brazil
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11
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Sui Y, Cui Y, Xia G, Peng X, Yuan G, Sun G. A facile route to preparation of immobilized cellulase on polyurea microspheres for improving catalytic activity and stability. Process Biochem 2019. [DOI: 10.1016/j.procbio.2019.09.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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12
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Quérette T, Fleury E, Sintes-Zydowicz N. Non-isocyanate polyurethane nanoparticles prepared by nanoprecipitation. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.03.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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13
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Chen M, Feng X, Xu W, Wang Y, Yang Y, Jiang Z, Ding J. PEGylated Polyurea Bearing Hindered Urea Bond for Drug Delivery. Molecules 2019; 24:E1538. [PMID: 31003544 PMCID: PMC6515048 DOI: 10.3390/molecules24081538] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 04/06/2019] [Accepted: 04/13/2019] [Indexed: 12/03/2022] Open
Abstract
In recent years, polyureas with dynamic hindered urea bonds (HUBs), a class of promising biomedical polymers, have attracted wide attention as a result of their controlled hydrolytic properties. The effect of the chemical structures on the properties of polyureas and their assemblies has rarely been reported. In this study, four kinds of polyureas with different chemical groups have been synthesized, and the polyureas from cyclohexyl diisocyanate and tert-butyl diamine showed the fastest hydrolytic rate. The amphiphilic polyurea composed of hydrophobic cyclohexyl-tert-butyl polyurea and hydrophilic poly(ethylene glycol) (PEG) was synthesized for the controlled delivery of the antitumor drug paclitaxel (PTX). The PTX-loaded PEGylated polyurea micelle more effectively entered into the murine breast cancer 4T1 cells and inhibited the corresponding tumor growth in vitro and in vivo. Therefore, the PEGylated polyurea with adjustable degradation might be a promising polymer matrix for drug delivery.
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Affiliation(s)
- Meishan Chen
- Chemical Engineering Institute, Changchun University of Technology, 2055 Yan'an Street, Changchun 130012, China.
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China.
| | - Xiangru Feng
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China.
- Jilin Biomedical Polymers Engineering Laboratory, 5625 Renmin Street, Changchun 130022, China.
| | - Weiguo Xu
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China.
- Jilin Biomedical Polymers Engineering Laboratory, 5625 Renmin Street, Changchun 130022, China.
| | - Yanqiao Wang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China.
- Jilin Biomedical Polymers Engineering Laboratory, 5625 Renmin Street, Changchun 130022, China.
| | - Yanan Yang
- Chemical Engineering Institute, Changchun University of Technology, 2055 Yan'an Street, Changchun 130012, China.
| | - Zhongyu Jiang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China.
- Jilin Biomedical Polymers Engineering Laboratory, 5625 Renmin Street, Changchun 130022, China.
| | - Jianxun Ding
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China.
- Jilin Biomedical Polymers Engineering Laboratory, 5625 Renmin Street, Changchun 130022, China.
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