1
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Hsu HF, Liu GL, Su YC, Ko BT. Bimetallic nickel complexes containing imidazole-based phenolate ligands as efficient catalysts for the copolymerization of carbon dioxide with epoxides. Dalton Trans 2023; 53:299-314. [PMID: 38047477 DOI: 10.1039/d3dt03084a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2023]
Abstract
The utilization of hexadentate imidazole-derived diamine-bisphenolate ligands to construct structurally well-defined bimetallic nickel catalysts that enable the mediation of the copolymerization of carbon dioxide with alicyclic epoxides was reported for the first time. A series of dinickel carboxylate/nitrophenolate complexes were facilely prepared through a one-pot procedure and their structures were fully determined by single crystal X-ray structural analysis. Dinickel complexes 1-10 were used as single-component catalysts, and were evaluated for the copolymerization of CO2 and cyclohexene oxide (CHO), for which acetato-incorporated complex 1 was proved to exhibit the best activity. Not only has the controllability of binickel catalyst 1 for CO2/CHO copolymerization been demonstrated, but also an "immortal" character for the same polymerization has been realized. Furthermore, detailed kinetic studies of polymerization catalysis of this type were undertaken, and the kinetics results revealed a first-order dependence on both Ni complex 1 and CHO concentrations. This is a successful example of the introduction of the easily accessible nitrogen-heterocycle group, the imidazole moiety, into phenolate ligands for the development of high-performance homogeneous catalysts towards the bimetallic complex-catalyzed copolymerization of CO2 and epoxides.
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Affiliation(s)
- Han-Fang Hsu
- Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan.
| | - Guan-Lin Liu
- Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan.
| | - Yu-Chia Su
- Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan.
| | - Bao-Tsan Ko
- Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan.
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2
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Dokuchaeva AA, Vladimirov SV, Borodin VP, Karpova EV, Vaver AA, Shiliaev GE, Chebochakov DS, Kuznetsov VA, Surovtsev NV, Adichtchev SV, Malikov AG, Gulov MA, Zhuravleva IY. Influence of Single-Wall Carbon Nanotube Suspension on the Mechanical Properties of Polymeric Films and Electrospun Scaffolds. Int J Mol Sci 2023; 24:11092. [PMID: 37446270 DOI: 10.3390/ijms241311092] [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: 05/02/2023] [Revised: 06/21/2023] [Accepted: 06/26/2023] [Indexed: 07/15/2023] Open
Abstract
Carbon nanotubes (CNTs) are used in applications ranging from electrical engineering to medical device manufacturing. It is well known that the addition of nanotubes can influence the mechanical properties of various industrial materials, including plastics. Electrospinning is a popular method for fabricating nanomaterials, widely suggested for polymer scaffold manufacturing. In this study, we aimed to describe the influence of single-walled carbon nanotube (SWCNT) suspensions on polymeric poured films and electrospun scaffolds and to investigate their structural and mechanical properties obtained from various compositions. To obtain films and electrospun scaffolds of 8 mm diameter, we used poly-ε-caprolactone (PCL) and poly(cyclohexene carbonate) (PCHC) solutions containing several mass fractions of SWCNT. The samples were characterized using tensile tests, atomic force and scanning electronic microscopy (AFM and SEM). All the studied SWCNT concentrations were shown to decrease the extensibility and strength of electrospun scaffolds, so SWCNT use was considered unsuitable for this technique. The 0.01% mass fraction of SWCNT in PCL films increased the polymer strength, while fractions of 0.03% and more significantly decreased the polymer strength and extensibility compared to the undoped polymer. The PHCH polymeric films showed a similar behavior with an extremum at 0.02% concentration for strength at break.
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Affiliation(s)
- Anna A Dokuchaeva
- Institute of Experimental Biology and Medicine, Federal State Budgetary Institution National Medical Research Center Named after Academician E.N. Meshalkin of the Ministry of Health of the Russian Federation, 15 Rechkunovskaya St., Novosibirsk 630055, Russia
| | - Sergey V Vladimirov
- Institute of Experimental Biology and Medicine, Federal State Budgetary Institution National Medical Research Center Named after Academician E.N. Meshalkin of the Ministry of Health of the Russian Federation, 15 Rechkunovskaya St., Novosibirsk 630055, Russia
| | - Vsevolod P Borodin
- Institute of Experimental Biology and Medicine, Federal State Budgetary Institution National Medical Research Center Named after Academician E.N. Meshalkin of the Ministry of Health of the Russian Federation, 15 Rechkunovskaya St., Novosibirsk 630055, Russia
| | - Elena V Karpova
- Group of Optical Spectrometry, Center of Spectral Investigations, N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry SB RAS, 9 Lavrentiev Avenue, Novosibirsk 630090, Russia
| | - Andrey A Vaver
- Institute of Experimental Biology and Medicine, Federal State Budgetary Institution National Medical Research Center Named after Academician E.N. Meshalkin of the Ministry of Health of the Russian Federation, 15 Rechkunovskaya St., Novosibirsk 630055, Russia
| | - Gleb E Shiliaev
- LLC "Tuball Center NSK", 24 Inzhenernaya St., Novosibirsk 630090, Russia
| | | | - Vasily A Kuznetsov
- I.Ya. Postovsky Insititute of Organic Synthesis of the Ural Branch of the Russian Academy of Sciences (IOS UB RAS), S. Kovalevskoy St., 22/20, Yekaterinburg 620108, Russia
| | - Nikolay V Surovtsev
- Institute of Automation and Electrometry of the Siberian Branch of the Russian Academy of Sciences, Academician Koptyug Avenue, 1, Novosibirsk 630090, Russia
| | - Sergey V Adichtchev
- Institute of Automation and Electrometry of the Siberian Branch of the Russian Academy of Sciences, Academician Koptyug Avenue, 1, Novosibirsk 630090, Russia
| | - Alexander G Malikov
- Khristianovich Institute of Theoretical and Applied Mechanics of the Siberian Branch of the Russian Academy of Sciences, Institutskaya Str. 4/1, Novosibirsk 630090, Russia
| | - Mikhail A Gulov
- Khristianovich Institute of Theoretical and Applied Mechanics of the Siberian Branch of the Russian Academy of Sciences, Institutskaya Str. 4/1, Novosibirsk 630090, Russia
| | - Irina Y Zhuravleva
- Institute of Experimental Biology and Medicine, Federal State Budgetary Institution National Medical Research Center Named after Academician E.N. Meshalkin of the Ministry of Health of the Russian Federation, 15 Rechkunovskaya St., Novosibirsk 630055, Russia
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3
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Li M, Lin ZI, Yang J, Huang H, Liu GL, Liu Q, Zhang X, Zhang Y, Xu Z, Lin H, Chai Y, Chen X, Ko BT, Liu J, Chen CK, Yang C. Biodegradable Carbon Dioxide-Derived Non-Viral Gene Vectors for Osteosarcoma Gene Therapy. Adv Healthc Mater 2023; 12:e2201306. [PMID: 36308025 DOI: 10.1002/adhm.202201306] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 10/22/2022] [Indexed: 01/29/2023]
Abstract
Osteosarcoma often occurs in children and adolescents with high invasiveness and high mortality. Polo-like kinase 1 (PLK1) overexpressed in most tumors promotes cancer cell proliferation and transformation. PLK1 is considered as a therapeutic target for osteosarcoma. RNA interference-based therapies are employed to combat osteosarcoma through silencing PLK1 gene expression. However, the treatment results remain unsatisfactory due to the lack of a safe and efficient nonviral gene vector. To tackle this hurdle, biodegradable and CO2 -derivative cationic poly(vinylcyclohexene carbonates) (CPCHCs) are used as gene vectors to perform a siPLK1 therapeutic strategy for osteosarcoma treatment. Of those CPCHCs, CPCHC60 demonstrates the most excellent performance in gene transfection efficiency, endo-lysosome escaping, biodegradability, and biosafety. With the treatment of CPCHCs/siRNA nanoparticles, the expression level of PLK1 gene in osteosarcoma cells is significantly down-regulated. Subsequently, cells are arrested in the G2 /M phase and subsequently dead in the form of apoptosis, resulting in significant tumor regression both in vitro and in vivo. This study brings a new insight into the development of superior nonviral gene vectors for practical cancer treatment. Based on the results, the resulting nanoparticle-based gene drug formation is considered to have a highly successful chance in further translational nanomedicine applications.
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Affiliation(s)
- Meirong Li
- Central Laboratory, The Second Affiliated Hospital, School of Medicine, The Chinese University of Hong Kong, Shenzhen & Longgang District People's Hospital of Shenzhen, Guangdong, 518172, P. R. China.,Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Health Science Center, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Zheng-Ian Lin
- Polymeric Biomaterials Laboratory, Department of Materials and Optoelectronic Science, National Sun Yat-Sen University, Kaohsiung, 80424, Taiwan ROC
| | - Jingyu Yang
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Health Science Center, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Haoqiang Huang
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Health Science Center, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Guan-Lin Liu
- Department of Chemistry, National Chung Hsing University, Taichung, 40227, Taiwan ROC
| | - Qiqi Liu
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Health Science Center, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Xinmeng Zhang
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Health Science Center, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Ying Zhang
- Central Laboratory, The Second Affiliated Hospital, School of Medicine, The Chinese University of Hong Kong, Shenzhen & Longgang District People's Hospital of Shenzhen, Guangdong, 518172, P. R. China.,Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Health Science Center, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Zhourui Xu
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Health Science Center, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Haoming Lin
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Health Science Center, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Yujuan Chai
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Health Science Center, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Xin Chen
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Health Science Center, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Bao-Tsan Ko
- Department of Chemistry, National Chung Hsing University, Taichung, 40227, Taiwan ROC
| | - Jia Liu
- Central Laboratory, The Second Affiliated Hospital, School of Medicine, The Chinese University of Hong Kong, Shenzhen & Longgang District People's Hospital of Shenzhen, Guangdong, 518172, P. R. China
| | - Chih-Kuang Chen
- Polymeric Biomaterials Laboratory, Department of Materials and Optoelectronic Science, National Sun Yat-Sen University, Kaohsiung, 80424, Taiwan ROC
| | - Chengbin Yang
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Health Science Center, Shenzhen University, Shenzhen, 518060, P. R. China
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4
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Tsai CY, Huang MC, Lin ML, Su YC, Lin CC. Well-Defined and Highly Effective Nickel Catalysts Coordinated on Tridentate SNO Schiff-Base Derivatives for Alternating Copolymerization of Epoxides and Anhydrides. Inorg Chem 2022; 61:19870-19881. [PMID: 36451620 DOI: 10.1021/acs.inorgchem.2c03094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
Abstract
A series of Ni complexes supported by SNO Schiff-base derivatives were synthesized in this study. Complex synthesis and characterization data are reported herein. Treatment of the pro-ligands [L1-H = 2-(((2-(methylthio)ethyl)imino)methyl)phenol, L2-H = 2,4-di-tert-butyl-6-(((2-(methylthio)ethyl)imino)methyl)phenol, L3-H = 2-(((2-(methylthio)ethyl)imino)methyl)-4,6-bis(2-phenylpropan-2-yl)phenol, L4-H = 4-bromo-2-(((2-(methylthio)ethyl)imino)methyl)phenol, and L5-H = 4-chloro-2-(((2-(methylthio)ethyl)imino)methyl)phenol] with Ni(OAc)2·4H2O in refluxing ethanol afforded six-coordinate mono-Ni(II) complexes [L2nNi] (n = 1-5). Noteworthy, a heptanuclear nickel(II) octacarboxylate species complex 6 and dinuclear nickel complex 6a resulted from treatment of L6-H [4-fluoro-2-(((2-(methylthio)ethyl)imino)methyl)phenol] with different metal precursors [Ni(OAc)2·4H2O for 6; NiBr2 for 6a] giving a quantitative yield. The reaction of nickel acetate tetrahydrate and L7-H to L9-H [L7-H = 2-methoxy-6-(((2-(methylthio)ethyl)imino)methyl)phenol, L8-H = 5-methoxy-2-(((2-(methylthio)ethyl)imino)methyl)phenol, and L9-H = 4-methoxy-2-(((2-(methylthio)ethyl)imino)methyl)phenol] produced the four-coordinate complexes [L2nNi] (n = 7-9). The highest performing catalyst was complex 3, which was highly efficient for the ring-opening copolymerization of phthalic anhydride (PA) and cyclohexene oxide (CHO) in the presence of a cocatalyst (4-dimethylaminopyridine). In addition, the same copolymerization conditions produced narrowly dispersed polyesters, with high selectivity and polymerization control. In addition to PA-CHO copolymerization, efficient diglycolic anhydride-PA and PA-propene oxide copolymerization was achieved under the same conditions. These catalysts are straightforward to produce and extend the scope of potential substrates.
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Affiliation(s)
- Chen-Yen Tsai
- Department of Chemistry, Chinese Culture University, Taipei 111, Taiwan
| | - Min-Chia Huang
- Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan
| | - Mei-Ling Lin
- Department of Chemistry, Chinese Culture University, Taipei 111, Taiwan
| | - Yu-Chia Su
- Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan
| | - Chu-Chieh Lin
- Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan
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5
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Fu L, Ren Z, Si W, Ma Q, Huang W, Liao K, Huang Z, Wang Y, Li J, Xu P. Research progress on CO2 capture and utilization technology. J CO2 UTIL 2022. [DOI: 10.1016/j.jcou.2022.102260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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6
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Liu X, Jiang Z, Xing D, Yang Y, Li Z, Sun Z. Recent progress in nanocomposites of carbon dioxide fixation derived reproducible biomedical polymers. Front Chem 2022; 10:1035825. [PMID: 36277338 PMCID: PMC9585172 DOI: 10.3389/fchem.2022.1035825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Accepted: 09/20/2022] [Indexed: 11/21/2022] Open
Abstract
In recent years, the environmental problems accompanying the extensive application of biomedical polymer materials produced from fossil fuels have attracted more and more attentions. As many biomedical polymer products are disposable, their life cycle is relatively short. Most of the used or overdue biomedical polymer products need to be burned after destruction, which increases the emission of carbon dioxide (CO2). Developing biomedical products based on CO2 fixation derived polymers with reproducible sources, and gradually replacing their unsustainable fossil-based counterparts, will promote the recycling of CO2 in this field and do good to control the greenhouse effect. Unfortunately, most of the existing polymer materials from renewable raw materials have some property shortages, which make them unable to meet the gradually improved quality and property requirements of biomedical products. In order to overcome these shortages, much time and effort has been dedicated to applying nanotechnology in this field. The present paper reviews recent advances in nanocomposites of CO2 fixation derived reproducible polymers for biomedical applications, and several promising strategies for further research directions in this field are highlighted.
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Affiliation(s)
- Xin Liu
- Department of Stomatology, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Zhiwen Jiang
- Department of Stomatology, China-Japan Union Hospital of Jilin University, Changchun, China
- *Correspondence: Zhiwen Jiang, ; Zhiying Li,
| | - Dejun Xing
- Tumor Hospital of Jilin Province, Changchun, China
| | - Yan Yang
- Tumor Hospital of Jilin Province, Changchun, China
| | - Zhiying Li
- Tumor Hospital of Jilin Province, Changchun, China
- *Correspondence: Zhiwen Jiang, ; Zhiying Li,
| | - Zhiqiang Sun
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, China
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7
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Liu GL, Ko BT. Alternating copolymerization of carbon dioxide with alicyclic epoxides using bimetallic nickel(II) complex catalysts containing benzotriazole-based salen-type derivatives: Catalysis and kinetics. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.125371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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8
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Lin ZI, Tsai HL, Liu GL, Lu XH, Cheng PW, Chi PL, Wang CK, Tsai TH, Wang CC, Yang JHC, Ko BT, Chen CK. Preparation of CO 2 -based Cationic Polycarbonate/Polyacrylonitrile Nanofibers with an Optimal Fibrous Microstructure for Antibacterial Applications. Macromol Biosci 2022; 22:e2200178. [PMID: 35902381 DOI: 10.1002/mabi.202200178] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 06/24/2022] [Indexed: 11/12/2022]
Abstract
Utilizing CO2 as one of the monomer resource, poly(vinylcyclohexene carbonates) (PVCHCs) are used as the precursor for preparing cationic PVCHCs (CPVCHCs) via thiol-ene click functionalization. Through the functionalization, CPVCHC-43 with a tertiary amine density of 43% relative to the backbone is able to display a significantly antibacterial ability against Staphylococcus aureus (S. aureus). Blending CPVCHC-43 with polyacrylonitrile (PAN), CPVCHC/PAN nanofiber meshes (NFMs) have been successfully prepared by electrospinning. More importantly, two crucial fibrous structural factors including CPVCHC/PAN weight ratio and fiber diameter have been systematically investigated for the effects on the antibacterial performance of the NFMs. Sequentially, a quaternization treatment has been employed on the NFMs with an optimal fibrous structure to enhance the antibacterial ability. The resulting quaternized NFMs have demonstrated the great biocidal effects against Gram-positive and Gram-negative bacteria. Moreover, the excellent biocompatibility of the quaternized NFMs have also been thoroughly evaluated and verified. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Zheng-Ian Lin
- Polymeric Biomaterials Laboratory, Department of Materials and Optoelectronic Science, National Sun Yat-Sen University, Kaohsiung, 80424, Taiwan
| | - Han-Lin Tsai
- Division of Cardiology and Department of Internal Medicine, Ditmanson Medical Foundation Chiayi Christian Hospital, Chiayi, 60002, Taiwan
| | - Guan-Lin Liu
- Department of Chemistry, National Chung Hsing University, Taichung, 40227, Taiwan
| | - Xie-Hong Lu
- Department of Fiber and Composite Materials, Feng Chia University, Taichung, 40724, Taiwan
| | - Pei-Wen Cheng
- Department of Medical Education and Research, Kaohsiung Veterans General Hospital, Kaohsiung, 81362, Taiwan.,Department of Biomedical Sciences, National Sun Yat-Sen University, Kaohsiung, 80424, Taiwan
| | - Pei-Ling Chi
- Department of Medical Education and Research, Kaohsiung Veterans General Hospital, Kaohsiung, 81362, Taiwan
| | - Chih-Kuang Wang
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan
| | - Tzu-Hsien Tsai
- Division of Cardiology and Department of Internal Medicine, Ditmanson Medical Foundation Chiayi Christian Hospital, Chiayi, 60002, Taiwan
| | - Chih-Chia Wang
- Department of Chemical and Materials Engineering, Chung Cheng Institute of Technology, National Defense University, Taoyuan, 33509, Taiwan.,System Engineering and Technology Program, National Yang Ming Chiao Tung University, Hsinchu, 30010, Taiwan
| | - Jason Hsiao Chun Yang
- Department of Fiber and Composite Materials, Feng Chia University, Taichung, 40724, Taiwan
| | - Bao-Tsan Ko
- Department of Chemistry, National Chung Hsing University, Taichung, 40227, Taiwan
| | - Chih-Kuang Chen
- Polymeric Biomaterials Laboratory, Department of Materials and Optoelectronic Science, National Sun Yat-Sen University, Kaohsiung, 80424, Taiwan
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9
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Liao X, Cui FC, He JH, Ren WM, Lu XB, Zhang YT. A sustainable approach for the synthesis of recyclable cyclic CO 2-based polycarbonates. Chem Sci 2022; 13:6283-6290. [PMID: 35733884 PMCID: PMC9159078 DOI: 10.1039/d2sc01387h] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Accepted: 04/21/2022] [Indexed: 11/23/2022] Open
Abstract
It is highly desirable to reduce the environmental pollution related to the disposal of end-of-life plastics. Polycarbonates derived from the copolymerization of CO2 and epoxides have attracted much attention since they can enable CO2-fixation and furnish biorenewable and degradable polymeric materials. So far, only linear CO2-based polycarbonates have been reported and typically degraded to cyclic carbonates. Here we synthesize a homogeneous dinuclear methyl zinc catalyst ((BDI-ZnMe)2, 1) to rapidly copolymerize meso-CHO and CO2 into poly(cyclohexene carbonate) (PCHC) with an unprecedentedly cyclic structure. Moreover, in the presence of trace amounts of water, a heterogeneous multi-nuclear zinc catalyst ((BDI-(ZnMe2·xH2O)) n , 2) is prepared and shows up to 99% selectivity towards the degradation of PCHC back to meso-CHO and CO2. This strategy not only achieves the first case of cyclic CO2-based polycarbonate but also realizes the complete chemical recycling of PCHC back to its monomers, representing closed-loop recycling of CO2-based polycarbonates.
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Affiliation(s)
- Xi Liao
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University 130012 Changchun P. R. China
| | - Feng-Chao Cui
- Faculty of Chemistry, Northeast Normal University 130024 Changchun P. R. China
| | - Jiang-Hua He
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University 130012 Changchun P. R. China
| | - Wei-Min Ren
- State Key Laboratory of Fine Chemicals, Dalian University of Technology 116024 Dalian P. R. China
| | - Xiao-Bing Lu
- State Key Laboratory of Fine Chemicals, Dalian University of Technology 116024 Dalian P. R. China
| | - Yue-Tao Zhang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University 130012 Changchun P. R. China
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10
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Chen T, Liu C, Tsai M. Oxovanadium(V) catalysts for the
CO
2
fixation into cyclic carbonates under ambient pressure. J CHIN CHEM SOC-TAIP 2022. [DOI: 10.1002/jccs.202200034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Tsung‐Yu Chen
- Department of Chemistry National Sun Yat‐sen University Kaohsiung Taiwan
| | - Chia‐Hao Liu
- Department of Chemistry National Sun Yat‐sen University Kaohsiung Taiwan
| | - Ming‐Li Tsai
- Department of Chemistry National Sun Yat‐sen University Kaohsiung Taiwan
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11
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Reis NV, Deacy AC, Rosetto G, Durr CB, Williams CK. Heterodinuclear Mg(II)M(II) (M=Cr, Mn, Fe, Co, Ni, Cu and Zn) Complexes for the Ring Opening Copolymerization of Carbon Dioxide/Epoxide and Anhydride/Epoxide. Chemistry 2022; 28:e202104198. [PMID: 35114048 PMCID: PMC9306976 DOI: 10.1002/chem.202104198] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Indexed: 11/07/2022]
Abstract
The catalysed ring opening copolymerizations (ROCOP) of carbon dioxide/epoxide or anhydride/epoxide are controlled polymerizations that access useful polycarbonates and polyesters. Here, a systematic investigation of a series of heterodinuclear Mg(II)M(II) complexes reveals which metal combinations are most effective. The complexes combine different first row transition metals (M(II)) from Cr(II) to Zn(II), with Mg(II); all complexes are coordinated by the same macrocyclic ancillary ligand and by two acetate co-ligands. The complex syntheses and characterization data, as well as the polymerization data, for both carbon dioxide/cyclohexene oxide (CHO) and endo-norbornene anhydride (NA)/cyclohexene oxide, are reported. The fastest catalyst for both polymerizations is Mg(II)Co(II) which shows propagation rate constants (kp ) of 34.7 mM-1 s-1 (CO2 ) and 75.3 mM-1 s-1 (NA) (100 °C). The Mg(II)Fe(II) catalyst also shows excellent performances with equivalent rates for CO2 /CHO ROCOP (kp =34.7 mM-1 s-1 ) and may be preferable in terms of metallic abundance, low cost and low toxicity. Polymerization kinetics analyses reveal that the two lead catalysts show overall second order rate laws, with zeroth order dependencies in CO2 or anhydride concentrations and first order dependencies in both catalyst and epoxide concentrations. Compared to the homodinuclear Mg(II)Mg(II) complex, nearly all the transition metal heterodinuclear complexes show synergic rate enhancements whilst maintaining high selectivity and polymerization control. These findings are relevant to the future design and optimization of copolymerization catalysts and should stimulate broader investigations of synergic heterodinuclear main group/transition metal catalysts.
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Affiliation(s)
- Natalia V Reis
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Rd, Oxford, OX1 3TA, UK
| | - Arron C Deacy
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Rd, Oxford, OX1 3TA, UK
| | - Gloria Rosetto
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Rd, Oxford, OX1 3TA, UK
| | - Christopher B Durr
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Rd, Oxford, OX1 3TA, UK
| | - Charlotte K Williams
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Rd, Oxford, OX1 3TA, UK
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12
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Tsai HJ, Su YC, Liu GL, Ko BT. Dinuclear Nickel and Cobalt Complexes Containing Biocompatible Carboxylate Derivatives as Effective Catalysts for Coupling of Carbon Dioxide with Epoxides: Synthesis, Characterization, and Catalysis. Organometallics 2022. [DOI: 10.1021/acs.organomet.1c00671] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hsin-Jung Tsai
- Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan
| | - Yu-Chia Su
- Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan
| | - Guan-Lin Liu
- Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan
| | - Bao-Tsan Ko
- Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan
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Tsao WF, Liu GL, Su YC, Lin CC, Ko BT. Bimetallic Nickel Complexes Containing Benzotriazole-Derived Diamine-Bisphenolate Ligands as Highly Active Catalysts for the Copolymerization of Carbon Dioxide with Cyclohexene Oxide: Synthesis, Catalysis, and Kinetics. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00474] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Wei-Fang Tsao
- Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan
| | - Guan-Lin Liu
- Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan
| | - Yu-Chia Su
- Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan
| | - Chu-Chieh Lin
- Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan
| | - Bao-Tsan Ko
- Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan
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Yang C, Lin ZI, Chen JA, Xu Z, Gu J, Law WC, Yang JHC, Chen CK. Organic/Inorganic Self-Assembled Hybrid Nano-Architectures for Cancer Therapy Applications. Macromol Biosci 2021; 22:e2100349. [PMID: 34735739 DOI: 10.1002/mabi.202100349] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 10/25/2021] [Indexed: 12/20/2022]
Abstract
Since the conceptualization of nanomedicine, numerous nanostructure-mediated drug formulations have progressed into clinical trials for treating cancer. However, recent clinical trial results indicate such kind of drug formulations has a limited improvement on the antitumor efficacy. This is due to the biological barriers associated with those formulations, for example, circulation stability, extravasation efficiency in tumor, tumor penetration ability, and developed multi-drug resistance. When employing for nanomedicine formulations, pristine organic-based and inorganic-based nanostructures have their own limitations. Accordingly, organic/inorganic (O/I) hybrids have been developed to integrate the merits of both, and to minimize their intrinsic drawbacks. In this context, the recent development in O/I hybrids resulting from a self-assembly strategy will be introduced. Through such a strategy, organic and inorganic building blocks can be self-assembled via either chemical covalent bonds or physical interactions. Based on the self-assemble procedure, the hybridization of four organic building blocks including liposomes, micelles, dendrimers, and polymeric nanocapsules with five functional inorganic nanoparticles comprising gold nanostructures, magnetic nanoparticles, carbon-based materials, quantum dots, and silica nanoparticles will be highlighted. The recent progress of these O/I hybrids in advanced modalities for combating cancer, such as, therapeutic agent delivery, photothermal therapy, photodynamic therapy, and immunotherapy will be systematically reviewed.
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Affiliation(s)
- Chengbin Yang
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Shenzhen University Health Science Center, Shenzhen, 518060, China
| | - Zheng-Ian Lin
- Polymeric Biomaterials Laboratory, Department of Materials and Optoelectronic Science, National Sun Yat-sen University, Kaohsiung, 80424, Taiwan
| | - Jian-An Chen
- Polymeric Biomaterials Laboratory, Department of Materials and Optoelectronic Science, National Sun Yat-sen University, Kaohsiung, 80424, Taiwan
| | - Zhourui Xu
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Shenzhen University Health Science Center, Shenzhen, 518060, China
| | - Jiayu Gu
- Department of Pharmacy, The Second Clinical Medical College (Shenzhen People's Hospital), Jinan University, Shenzhen, 518020, China
| | - Wing-Cheung Law
- Department of Industrial and Systems Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, China
| | - Jason Hsiao Chun Yang
- Department of Fiber and Composite Materials, Feng Chia University, Taichung, 40724, Taiwan
| | - Chih-Kuang Chen
- Polymeric Biomaterials Laboratory, Department of Materials and Optoelectronic Science, National Sun Yat-sen University, Kaohsiung, 80424, Taiwan
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15
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Earth-abundant bimetallic and multimetallic catalysts for Epoxide/CO2 ring-opening copolymerization. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132433] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Zhang X, Lin ZI, Yang J, Liu GL, Hu Z, Huang H, Li X, Liu Q, Ma M, Xu Z, Xu G, Yong KT, Tsai WC, Tsai TH, Ko BT, Chen CK, Yang C. Carbon Dioxide-Derived Biodegradable and Cationic Polycarbonates as a New siRNA Carrier for Gene Therapy in Pancreatic Cancer. NANOMATERIALS 2021; 11:nano11092312. [PMID: 34578632 PMCID: PMC8472555 DOI: 10.3390/nano11092312] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 08/18/2021] [Accepted: 09/01/2021] [Indexed: 12/15/2022]
Abstract
Pancreatic cancer is an aggressive malignancy associated with poor prognosis and a high tendency in developing infiltration and metastasis. K-ras mutation is a major genetic disorder in pancreatic cancer patient. RNAi-based therapies can be employed for combating pancreatic cancer by silencing K-ras gene expression. However, the clinical application of RNAi technology is appreciably limited by the lack of a proper siRNA delivery system. To tackle this hurdle, cationic poly (cyclohexene carbonate) s (CPCHCs) using widely sourced CO2 as the monomer are subtly synthesized via ring-opening copolymerization (ROCOP) and thiol-ene functionalization. The developed CPCHCs could effectively encapsulate therapeutic siRNA to form CPCHC/siRNA nanoplexes (NPs). Serving as a siRNA carrier, CPCHC possesses biodegradability, negligible cytotoxicity, and high transfection efficiency. In vitro study shows that CPCHCs are capable of effectively protecting siRNA from being degraded by RNase and promoting a sustained endosomal escape of siRNA. After treatment with CPCHC/siRNA NPs, the K-ras gene expression in both pancreatic cancer cell line (PANC-1 and MiaPaCa-2) are significantly down-regulated. Subsequently, the cell growth and migration are considerably inhibited, and the treated cells are induced into cell apoptotic program. These results demonstrate the promising potential of CPCHC-mediated siRNA therapies in pancreatic cancer treatment.
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Affiliation(s)
- Xinmeng Zhang
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Health Science Center, Shenzhen University, Shenzhen 518060, China; (X.Z.); (J.Y.); (Z.H.); (H.H.); (X.L.); (Q.L.); (M.M.); (Z.X.); (G.X.)
| | - Zheng-Ian Lin
- Polymeric Biomaterials Laboratory, Department of Materials and Optoelectronic Science, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan;
| | - Jingyu Yang
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Health Science Center, Shenzhen University, Shenzhen 518060, China; (X.Z.); (J.Y.); (Z.H.); (H.H.); (X.L.); (Q.L.); (M.M.); (Z.X.); (G.X.)
| | - Guan-Lin Liu
- Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan;
| | - Zulu Hu
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Health Science Center, Shenzhen University, Shenzhen 518060, China; (X.Z.); (J.Y.); (Z.H.); (H.H.); (X.L.); (Q.L.); (M.M.); (Z.X.); (G.X.)
| | - Haoqiang Huang
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Health Science Center, Shenzhen University, Shenzhen 518060, China; (X.Z.); (J.Y.); (Z.H.); (H.H.); (X.L.); (Q.L.); (M.M.); (Z.X.); (G.X.)
| | - Xiang Li
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Health Science Center, Shenzhen University, Shenzhen 518060, China; (X.Z.); (J.Y.); (Z.H.); (H.H.); (X.L.); (Q.L.); (M.M.); (Z.X.); (G.X.)
| | - Qiqi Liu
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Health Science Center, Shenzhen University, Shenzhen 518060, China; (X.Z.); (J.Y.); (Z.H.); (H.H.); (X.L.); (Q.L.); (M.M.); (Z.X.); (G.X.)
| | - Mingze Ma
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Health Science Center, Shenzhen University, Shenzhen 518060, China; (X.Z.); (J.Y.); (Z.H.); (H.H.); (X.L.); (Q.L.); (M.M.); (Z.X.); (G.X.)
- Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Zhourui Xu
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Health Science Center, Shenzhen University, Shenzhen 518060, China; (X.Z.); (J.Y.); (Z.H.); (H.H.); (X.L.); (Q.L.); (M.M.); (Z.X.); (G.X.)
| | - Gaixia Xu
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Health Science Center, Shenzhen University, Shenzhen 518060, China; (X.Z.); (J.Y.); (Z.H.); (H.H.); (X.L.); (Q.L.); (M.M.); (Z.X.); (G.X.)
| | - Ken-Tye Yong
- School of Biomedical Engineering, The University of Sydney, Sydney, NSW 2006, Australia;
- The University of Sydney Nano Institute, The University of Sydney, Sydney, NSW 2006, Australia
| | - Wei-Chung Tsai
- Division of Cardiology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan; (W.-C.T.); (T.-H.T.)
| | - Tzu-Hsien Tsai
- Division of Cardiology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan; (W.-C.T.); (T.-H.T.)
| | - Bao-Tsan Ko
- Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan;
- Correspondence: (B.-T.K.); (C.-K.C.); (C.Y.); Tel.: +886-4-2284-0411 (ext. 715) (B.-T.K.); +886-7-525-2000 (ext. 4060) (C.-K.C.); +86-0755-2693-2683 (C.Y.)
| | - Chih-Kuang Chen
- Polymeric Biomaterials Laboratory, Department of Materials and Optoelectronic Science, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan;
- Correspondence: (B.-T.K.); (C.-K.C.); (C.Y.); Tel.: +886-4-2284-0411 (ext. 715) (B.-T.K.); +886-7-525-2000 (ext. 4060) (C.-K.C.); +86-0755-2693-2683 (C.Y.)
| | - Chengbin Yang
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Health Science Center, Shenzhen University, Shenzhen 518060, China; (X.Z.); (J.Y.); (Z.H.); (H.H.); (X.L.); (Q.L.); (M.M.); (Z.X.); (G.X.)
- Correspondence: (B.-T.K.); (C.-K.C.); (C.Y.); Tel.: +886-4-2284-0411 (ext. 715) (B.-T.K.); +886-7-525-2000 (ext. 4060) (C.-K.C.); +86-0755-2693-2683 (C.Y.)
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