1
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Wang Y, Zhang X, Huang CB, Hu L, Wang XQ, Wang W, Yang HB. Inducing and Switching the Handedness of Polyacetylenes with Topologically Chiral [2]Catenane Pendants. Angew Chem Int Ed Engl 2024; 63:e202408271. [PMID: 38837513 DOI: 10.1002/anie.202408271] [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: 04/30/2024] [Revised: 06/04/2024] [Accepted: 06/04/2024] [Indexed: 06/07/2024]
Abstract
To explore the chirality induction and switching of topological chirality, poly[2]catenanes composed of helical poly(phenylacetylenes) (PPAs) main chain and topologically chiral [2]catenane pendants are described for the first time. These poly[2]catenanes with optically active [2]catenanes on side chains were synthesized by polymerization of enantiomerically pure topologically chiral [2]catenanes with ethynyl polymerization site and/or point chiral moiety. The chirality information of [2]catenane pendants was successfully transferred to the main chain of polyene backbones, leading to preferred-handed helical conformations, while the introduction of point chiral units has negligible effect on the overall helices. More interestingly, attributed to unique dynamic feature of the [2]catenane pendants, these polymers revealed dynamic response behaviors to solvents, temperature, and sodium ions, resulting in the fully reversible switching on/off of the chirality induction. This work provides not only new design strategy for novel chiroptical switches with topologically chiral molecules but also novel platforms for the development of smart chiral materials.
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Affiliation(s)
- Yu Wang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, State Key Laboratory of Petroleum Molecular and Process Engineering, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
| | - Xin Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, State Key Laboratory of Petroleum Molecular and Process Engineering, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
| | - Chang-Bo Huang
- Coatings Applied Research Asia Pacific, BASF Advanced Chemicals Co., Ltd., Shanghai, 200137, China
| | - Lianrui Hu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, State Key Laboratory of Petroleum Molecular and Process Engineering, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
| | - Xu-Qing Wang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, State Key Laboratory of Petroleum Molecular and Process Engineering, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
| | - Wei Wang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, State Key Laboratory of Petroleum Molecular and Process Engineering, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
| | - Hai-Bo Yang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, State Key Laboratory of Petroleum Molecular and Process Engineering, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
- Shanghai Center of Brain-inspired Intelligent Materials and Devices, East China Normal University, Shanghai, 200241, China
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2
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Núñez-Martínez M, Fernández-Míguez M, Quiñoá E, Freire F. Size Control of Chiral Nanospheres Obtained via Nanoprecipitation of Helical Poly(phenylacetylene)s in the Absence of Surfactants. Angew Chem Int Ed Engl 2024; 63:e202403313. [PMID: 38742679 DOI: 10.1002/anie.202403313] [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: 02/16/2024] [Revised: 04/30/2024] [Accepted: 05/14/2024] [Indexed: 05/16/2024]
Abstract
Nanostructuration of dynamic helical polymers such as poly(phenylacetylene)s (PPAs) depends on the secondary structure adopted by the polymer and the functional group used to connect the chiral pendant to the PPA backbone. Thus, while PPAs with dynamic and flexible scaffolds (para- and meta-substituted, ω1<165°) generate by nanoprecipitation low polydisperse nanospheres with controllable size at different acetone/water mixtures, those with a quasi-static behavior and the presence of an extended, almost planar structure (ortho-substituted, ω1>165°), aggregate into a mixture of spherical and oval nanostructures whose size is not controlled. Photostability studies show that poly(phenylacetylene) particles are more stable to light irradiation than when dissolved macromolecularly. Moreover, the photostability of the particle depends on the secondary structure of the PPA and its screw sense excess. This fact, in combination with the encapsulation ability of these polymer particles, allows the creation of light stimuli-responsive nanocarriers, whose cargo can be delivered by light irradiation.
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Affiliation(s)
- Manuel Núñez-Martínez
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares and Departamento de Química Orgánica, Universidade de Santiago de Compostela, E-15782, Santiago de Compostela, Spain
| | - Manuel Fernández-Míguez
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares and Departamento de Química Orgánica, Universidade de Santiago de Compostela, E-15782, Santiago de Compostela, Spain
| | - Emilio Quiñoá
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares and Departamento de Química Orgánica, Universidade de Santiago de Compostela, E-15782, Santiago de Compostela, Spain
| | - Félix Freire
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares and Departamento de Química Orgánica, Universidade de Santiago de Compostela, E-15782, Santiago de Compostela, Spain
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3
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Lago-Silva M, Fernández-Míguez M, Rodríguez R, Quiñoá E, Freire F. Stimuli-responsive synthetic helical polymers. Chem Soc Rev 2024; 53:793-852. [PMID: 38105704 DOI: 10.1039/d3cs00952a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2023]
Abstract
Synthetic dynamic helical polymers (supramolecular and covalent) and foldamers share the helix as a structural motif. Although the materials are different, these systems also share many structural properties, such as helix induction or conformational communication mechanisms. The introduction of stimuli responsive building blocks or monomer repeating units in these materials triggers conformational or structural changes, due to the presence/absence of the external stimulus, which are transmitted to the helix resulting in different effects, such as assymetry amplification, helix inversion or even changes in the helical scaffold (elongation, J/H helical aggregates). In this review, we show through selected examples how different stimuli (e.g., temperature, solvents, cations, anions, redox, chiral additives, pH or light) can alter the helical structures of dynamic helical polymers (covalent and supramolecular) and foldamers acting on the conformational composition or molecular structure of their components, which is also transmitted to the macromolecular helical structure.
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Affiliation(s)
- María Lago-Silva
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain.
| | - Manuel Fernández-Míguez
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain.
| | - Rafael Rodríguez
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain.
| | - Emilio Quiñoá
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain.
| | - Félix Freire
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain.
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4
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Puneet P, Shao SW, Ho RM. Induced Circular Dichroism and Circularly Polarized Luminescence for Block Copolymers with Chiral Communications. Macromol Rapid Commun 2023; 44:e2200369. [PMID: 35836097 DOI: 10.1002/marc.202200369] [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: 04/17/2022] [Revised: 05/28/2022] [Indexed: 01/11/2023]
Abstract
Many sophisticated chiral materials are found in living organisms, giving specific functions and required complexity. Owing to the remarkable optical properties of chiral materials, they have drawn significant attention for the development of synthetic materials to give optical activities for appealing applications. In contrast to a top-down approach, the bottom-up approach from self-assembled systems with chiral host-achiral guest and achiral guest-chiral host for induced circular dichroism and induced circularly polarized luminescence has greatly emerged because of its cost-effective advantage with easy fabrication for mesoscale assembly. Self-assembled hierarchical textures with chiral sense indeed give significant amplification of the dissymmetry factors of absorption and luminescence (gabs and glum ), resulting from the formation of well-ordered superstructures and phases with the building of chromophores and luminophores. By taking advantage of the microphase separation of block copolymers via self-assembly, a variety of well-defined chiral nanostructures can be formed as tertiary superstructures that can be further extended to quaternary phases in bulk or thin film. In this article, a conceptual perspective is presented to utilize the self-assembly of chiral block copolymers with chiral communications, giving quaternary phases with well-ordered textures at the nanoscale for significant enhancement of dissymmetry factors.
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Affiliation(s)
- Puhup Puneet
- Department of Chemical Engineering, National Tsing Hua University No. 101, Section 2, Kuang-Fu Road, Hsinchu, Taiwan, 30013, Republic of China
| | - Sheng-Wei Shao
- Department of Chemical Engineering, National Tsing Hua University No. 101, Section 2, Kuang-Fu Road, Hsinchu, Taiwan, 30013, Republic of China
| | - Rong-Ming Ho
- Department of Chemical Engineering, National Tsing Hua University No. 101, Section 2, Kuang-Fu Road, Hsinchu, Taiwan, 30013, Republic of China
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5
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Puneet P, Chiu PT, Yang KC, Lee TL, Ho RM. Topological Nanostructures with Preferred Helicity from Self-Assembly of Block Copolymers via Homochiral Evolution. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c01831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Puhup Puneet
- Department of Chemical Engineering, National Tsing Hua University, No. 101, Section 2, Kuang-Fu Road, Hsinchu 30013, Taiwan, R.O.C
| | - Po-Ting Chiu
- Department of Chemical Engineering, National Tsing Hua University, No. 101, Section 2, Kuang-Fu Road, Hsinchu 30013, Taiwan, R.O.C
| | - Kai-Chieh Yang
- Department of Chemical Engineering, National Tsing Hua University, No. 101, Section 2, Kuang-Fu Road, Hsinchu 30013, Taiwan, R.O.C
| | - Tsung-Lun Lee
- Department of Chemical Engineering, National Tsing Hua University, No. 101, Section 2, Kuang-Fu Road, Hsinchu 30013, Taiwan, R.O.C
| | - Rong-Ming Ho
- Department of Chemical Engineering, National Tsing Hua University, No. 101, Section 2, Kuang-Fu Road, Hsinchu 30013, Taiwan, R.O.C
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6
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Gao Y, Zhao J, Huang Z, Ronson TK, Zhao F, Wang Y, Li B, Feng C, Yu Y, Cheng Y, Yang D, Yang X, Wu B. Hierarchical Self‐Assembly of Adhesive and Conductive Gels with Anion‐Coordinated Triple Helicate Junctions. Angew Chem Int Ed Engl 2022; 61:e202201793. [DOI: 10.1002/anie.202201793] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Indexed: 12/17/2022]
Affiliation(s)
- Yiwei Gao
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an 710069 China
| | - Jie Zhao
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an 710069 China
- School of Chemistry and Chemical Engineering Xi'an University of Architecture and Technology Xi'an 710055 China
| | - Zehuan Huang
- Yusuf Hamied Department of Chemistry University of Cambridge Lensfield Road Cambridge CB2 1EW UK
| | - Tanya K. Ronson
- Yusuf Hamied Department of Chemistry University of Cambridge Lensfield Road Cambridge CB2 1EW UK
| | - Fen Zhao
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an 710069 China
| | - Yue Wang
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an 710069 China
| | - Boyang Li
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an 710069 China
| | - Chenlu Feng
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an 710069 China
| | - You Yu
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an 710069 China
| | - Yongliang Cheng
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an 710069 China
| | - Dong Yang
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an 710069 China
| | - Xiao‐Juan Yang
- Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering Ministry of Industry and Information Technology School of Chemistry and Chemical Engineering Beijing Institute of Technology Beijing 100081 China
| | - Biao Wu
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an 710069 China
- Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering Ministry of Industry and Information Technology School of Chemistry and Chemical Engineering Beijing Institute of Technology Beijing 100081 China
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7
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Gao Y, Zhao J, Huang Z, Ronson TK, Zhao F, Wang Y, Li B, Feng C, Yu Y, Cheng Y, Yang D, Yang X, Wu B. Hierarchical Self‐Assembly of Adhesive and Conductive Gels with Anion‐Coordinated Triple Helicate Junctions. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202201793] [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)
- Yiwei Gao
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an 710069 China
| | - Jie Zhao
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an 710069 China
- School of Chemistry and Chemical Engineering Xi'an University of Architecture and Technology Xi'an 710055 China
| | - Zehuan Huang
- Yusuf Hamied Department of Chemistry University of Cambridge Lensfield Road Cambridge CB2 1EW UK
| | - Tanya K. Ronson
- Yusuf Hamied Department of Chemistry University of Cambridge Lensfield Road Cambridge CB2 1EW UK
| | - Fen Zhao
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an 710069 China
| | - Yue Wang
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an 710069 China
| | - Boyang Li
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an 710069 China
| | - Chenlu Feng
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an 710069 China
| | - You Yu
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an 710069 China
| | - Yongliang Cheng
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an 710069 China
| | - Dong Yang
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an 710069 China
| | - Xiao‐Juan Yang
- Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering Ministry of Industry and Information Technology School of Chemistry and Chemical Engineering Beijing Institute of Technology Beijing 100081 China
| | - Biao Wu
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials Science Northwest University Xi'an 710069 China
- Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering Ministry of Industry and Information Technology School of Chemistry and Chemical Engineering Beijing Institute of Technology Beijing 100081 China
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8
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Cheng X, Miao T, Ma Y, Zhang W. Chiral Expression and Morphology Control in Polymer Dispersion Systems. Chempluschem 2022; 87:e202100556. [DOI: 10.1002/cplu.202100556] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 02/04/2022] [Indexed: 11/05/2022]
Affiliation(s)
- Xiaoxiao Cheng
- Soochow University College of Chemistry, Chemical Engineering and Materials Science CHINA
| | - Tengfei Miao
- Soochow University College of Chemistry, Chemical Engineering and Materials Science CHINA
| | - Yafei Ma
- Soochow University College of Chemistry, Chemical Engineering and Materials Science CHINA
| | - Wei Zhang
- Soochow University Department of Polymer Science and Engineering No.199 Renai Road 215123 Suzhou CHINA
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9
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Sahoo D, Benny R, Ks NK, De S. Stimuli-Responsive Chiroptical Switching. Chempluschem 2021; 87:e202100322. [PMID: 34694736 DOI: 10.1002/cplu.202100322] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Revised: 09/23/2021] [Indexed: 12/16/2022]
Abstract
"Chirality" governs many fundamental properties in chemistry and biochemistry. While early investigations on stereochemistry are primarily dedicated to static chirality, there is an increasing interest in the field of dynamic chirality (chiral switches). These chiral switches are essential in controlling the directionality in molecular motors. Dynamic chiralities are equally crucial in switchable stereoselectivity, switchable asymmetric catalysis and enantioselective separation. Herein, we limit our discussion to recent advances on stimuli-induced chiroptical switching of axial, helical, and planar chirality in response to external stimuli. We also discuss a few examples of applications of the switchable chirality.
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Affiliation(s)
- Diptiprava Sahoo
- School of Chemistry, Indian Institute of Science Education and, Research Thiruvananthapuram (IISER-TVM), Thiruvananthapuram, 695551, India
| | - Renitta Benny
- School of Chemistry, Indian Institute of Science Education and, Research Thiruvananthapuram (IISER-TVM), Thiruvananthapuram, 695551, India
| | - Nithish Kumar Ks
- School of Chemistry, Indian Institute of Science Education and, Research Thiruvananthapuram (IISER-TVM), Thiruvananthapuram, 695551, India
| | - Soumen De
- School of Chemistry, Indian Institute of Science Education and, Research Thiruvananthapuram (IISER-TVM), Thiruvananthapuram, 695551, India
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10
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Cao Y, Ren L, Zhang Y, Lu X, Zhang X, Yan J, Li W, Masuda T, Zhang A. Remarkable Effects of Anions on the Chirality of Thermoresponsive Helical Dendronized Poly(phenylacetylene)s. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c00917] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yuexin Cao
- International Joint Laboratory of Biomimetic and Smart Polymers, School of Materials Science and Engineering, Shanghai University, Materials Building Room 447, Nanchen Street 333, Shanghai 200444, China
| | - Liangxuan Ren
- International Joint Laboratory of Biomimetic and Smart Polymers, School of Materials Science and Engineering, Shanghai University, Materials Building Room 447, Nanchen Street 333, Shanghai 200444, China
| | - Yangwen Zhang
- International Joint Laboratory of Biomimetic and Smart Polymers, School of Materials Science and Engineering, Shanghai University, Materials Building Room 447, Nanchen Street 333, Shanghai 200444, China
| | - Xueting Lu
- International Joint Laboratory of Biomimetic and Smart Polymers, School of Materials Science and Engineering, Shanghai University, Materials Building Room 447, Nanchen Street 333, Shanghai 200444, China
| | - Xiacong Zhang
- International Joint Laboratory of Biomimetic and Smart Polymers, School of Materials Science and Engineering, Shanghai University, Materials Building Room 447, Nanchen Street 333, Shanghai 200444, China
| | - Jiatao Yan
- International Joint Laboratory of Biomimetic and Smart Polymers, School of Materials Science and Engineering, Shanghai University, Materials Building Room 447, Nanchen Street 333, Shanghai 200444, China
| | - Wen Li
- International Joint Laboratory of Biomimetic and Smart Polymers, School of Materials Science and Engineering, Shanghai University, Materials Building Room 447, Nanchen Street 333, Shanghai 200444, China
| | - Toshio Masuda
- International Joint Laboratory of Biomimetic and Smart Polymers, School of Materials Science and Engineering, Shanghai University, Materials Building Room 447, Nanchen Street 333, Shanghai 200444, China
| | - Afang Zhang
- International Joint Laboratory of Biomimetic and Smart Polymers, School of Materials Science and Engineering, Shanghai University, Materials Building Room 447, Nanchen Street 333, Shanghai 200444, China
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11
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Investigation the Effect of Encapsulated Bromelain Enzyme in Magnetic Carbon Nanotubes on Colorectal Cancer Cells. Jundishapur J Nat Pharm Prod 2021. [DOI: 10.5812/jjnpp.108796] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022] Open
Abstract
Background: Bromelain (BL) is an enzyme extracted from Ananas comosus, which has been known for its therapeutic properties. Objectives: The anticarcinogenic activity of BL was examined with and without the presence of magnetic carbon nanotubes (MCNTs) against HT-29 colorectal cancer cells. Methods: The operational factors affecting BL adsorption, such as contact time (30, 60, 90, 120, and 180 min), adsorbent dosage (1 g/L and 5 g/L), initial bromelain concentration (50, 150, and 300 mg/L), and temperature (35 and 50°C) were studied in details. Then, cancer cells were exposed to various BL concentrations (0.1, 1, 10, and 100 μg/mL), and the cell viability was determined by methylthiazol tetrazolium (MTT) assay after 24, 48, and 72 h. Results: The highest adsorption of BL on nanotubes was at 41.62 mg/L and achieved at 35°C and 90 min at the initial concentration of 50 mg/L and 1 g/L of MCNTs. The adsorption followed the Freundlich model and second-order kinetics. The results indicated that MCNTs could be a potential effective adsorbent for the removal of BL. Conclusions: MTT assay indicated that BL at a concentration of 100 μg/mL alone and in combination with MCNTs efficiently inhibited the HT-29 cancerous cells. However, encapsulated BL had a considerable advantage of slow delivery, which is favorable for cancer treatment.
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12
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Cai S, Chen J, Wang S, Zhang J, Wan X. Allostery-Mimicking Self-assembly of Helical Poly(phenylacetylene) Block Copolymers and the Chirality Transfer. Angew Chem Int Ed Engl 2021; 60:9686-9692. [PMID: 33580891 DOI: 10.1002/anie.202100551] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Indexed: 12/22/2022]
Abstract
Allostery can regulate protein self-assembly which further affects biological activities, and achieving precise control over the chiral suprastructures during self-assembly remains challenging. Herein, to mimic the allosterical nature of proteins, the poly(phenylacetylene) block copolymers PPA-b-PsmNap with the dynamic helical backbone were synthesized to investigate their conformational-transition-induced self-assembly. As the helical conformation of the block PsmNap spontaneously transforms from cis-transiod to cis-cisoid, the decreasing solubility of PsmNap blocks in THF induced self-assembly of PPA-b-PsmNap. The self-assembly structures of copolymers can sequentially evolve from vesicles to nanobelts to helical strands during the process of conformation transformation. The screw sense of final helical strands was strictly correlated to the helicity of the block PsmNap. This is helpful to understand the mechanism of allostery-modulated self-assembly.
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Affiliation(s)
- Siliang Cai
- Beijing National Laboratory for Molecular Science, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
| | - Junxian Chen
- Beijing National Laboratory for Molecular Science, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
| | - Sheng Wang
- Beijing National Laboratory for Molecular Science, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
| | - Jie Zhang
- Beijing National Laboratory for Molecular Science, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
| | - Xinhua Wan
- Beijing National Laboratory for Molecular Science, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
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13
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Cai S, Chen J, Wang S, Zhang J, Wan X. Allostery‐Mimicking Self‐assembly of Helical Poly(phenylacetylene) Block Copolymers and the Chirality Transfer. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202100551] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Siliang Cai
- Beijing National Laboratory for Molecular Science Key Laboratory of Polymer Chemistry and Physics of Ministry of Education College of Chemistry and Molecular Engineering Peking University Beijing 100871 China
| | - Junxian Chen
- Beijing National Laboratory for Molecular Science Key Laboratory of Polymer Chemistry and Physics of Ministry of Education College of Chemistry and Molecular Engineering Peking University Beijing 100871 China
| | - Sheng Wang
- Beijing National Laboratory for Molecular Science Key Laboratory of Polymer Chemistry and Physics of Ministry of Education College of Chemistry and Molecular Engineering Peking University Beijing 100871 China
| | - Jie Zhang
- Beijing National Laboratory for Molecular Science Key Laboratory of Polymer Chemistry and Physics of Ministry of Education College of Chemistry and Molecular Engineering Peking University Beijing 100871 China
| | - Xinhua Wan
- Beijing National Laboratory for Molecular Science Key Laboratory of Polymer Chemistry and Physics of Ministry of Education College of Chemistry and Molecular Engineering Peking University Beijing 100871 China
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14
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Abstract
This review surveys recent progress towards robust chiral nanostructure fabrication techniques using synthetic helical polymers, the unique inferred properties that these materials possess, and their intricate connection to natural, biological chirality.
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Affiliation(s)
| | - James F. Reuther
- Department of Chemistry
- University of Massachusetts Lowell
- Lowell
- USA
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15
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Cobos K, Rodríguez R, Quiñoá E, Riguera R, Freire F. From Sergeants and Soldiers to Chiral Conflict Effects in Helical Polymers by Acting on the Conformational Composition of the Comonomers. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202009215] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Katherine Cobos
- Centro Singular de investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica Universidade de Santiago de Compostela E-15782 Santiago de Compostela Spain
| | - Rafael Rodríguez
- Centro Singular de investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica Universidade de Santiago de Compostela E-15782 Santiago de Compostela Spain
| | - Emilio Quiñoá
- Centro Singular de investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica Universidade de Santiago de Compostela E-15782 Santiago de Compostela Spain
| | - Ricardo Riguera
- Centro Singular de investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica Universidade de Santiago de Compostela E-15782 Santiago de Compostela Spain
| | - Félix Freire
- Centro Singular de investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica Universidade de Santiago de Compostela E-15782 Santiago de Compostela Spain
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16
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Cobos K, Rodríguez R, Quiñoá E, Riguera R, Freire F. From Sergeants and Soldiers to Chiral Conflict Effects in Helical Polymers by Acting on the Conformational Composition of the Comonomers. Angew Chem Int Ed Engl 2020; 59:23724-23730. [DOI: 10.1002/anie.202009215] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 09/01/2020] [Indexed: 12/17/2022]
Affiliation(s)
- Katherine Cobos
- Centro Singular de investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica Universidade de Santiago de Compostela E-15782 Santiago de Compostela Spain
| | - Rafael Rodríguez
- Centro Singular de investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica Universidade de Santiago de Compostela E-15782 Santiago de Compostela Spain
| | - Emilio Quiñoá
- Centro Singular de investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica Universidade de Santiago de Compostela E-15782 Santiago de Compostela Spain
| | - Ricardo Riguera
- Centro Singular de investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica Universidade de Santiago de Compostela E-15782 Santiago de Compostela Spain
| | - Félix Freire
- Centro Singular de investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica Universidade de Santiago de Compostela E-15782 Santiago de Compostela Spain
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17
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Huang H, Duan H, Yin L, Qi D, Xue J, Zhang Y, Deng J. Macromolecular Chiral Amplification through a Random Coil to One-Handed Helix Transformation Induced by Metal Ion Coordination in an Aqueous Solution. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c00533] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Huajun Huang
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education of the People’s Republic of China, School of Materials Science and Engineering & School of Textile Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Huimin Duan
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education of the People’s Republic of China, School of Materials Science and Engineering & School of Textile Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Lijie Yin
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education of the People’s Republic of China, School of Materials Science and Engineering & School of Textile Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Dongming Qi
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education of the People’s Republic of China, School of Materials Science and Engineering & School of Textile Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Jiadan Xue
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Yingjie Zhang
- State Key Laboratory of Chemical Resource Engineering, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jianping Deng
- State Key Laboratory of Chemical Resource Engineering, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
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18
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Fernández Z, Fernández B, Quiñoá E, Riguera R, Freire F. Chiral information harvesting in helical poly(acetylene) derivatives using oligo( p-phenyleneethynylene)s as spacers. Chem Sci 2020; 11:7182-7187. [PMID: 34123003 PMCID: PMC8159296 DOI: 10.1039/d0sc02685a] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 06/16/2020] [Indexed: 01/20/2023] Open
Abstract
A chiral harvesting transmission mechanism is described in poly(acetylene)s bearing oligo(p-phenyleneethynylene)s (OPEs) used as rigid achiral spacers and derivatized with chiral pendant groups. The chiral moieties induce a positive or negative tilting degree in the stacking of OPE units along the polymer structure, which is further harvested by the polyene backbone adopting either a P or M helix.
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Affiliation(s)
- Zulema Fernández
- Centro Singular de investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Departamento de Química Orgánica, Universidade de Santiago de Compostela E-15782 Santiago de Compostela Spain
| | - Berta Fernández
- Departamento de Química Física, Universidade de Santiago de Compostela E-15782 Santiago de Compostela Spain
| | - Emilio Quiñoá
- Centro Singular de investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Departamento de Química Orgánica, Universidade de Santiago de Compostela E-15782 Santiago de Compostela Spain
| | - Ricardo Riguera
- Centro Singular de investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Departamento de Química Orgánica, Universidade de Santiago de Compostela E-15782 Santiago de Compostela Spain
| | - Félix Freire
- Centro Singular de investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Departamento de Química Orgánica, Universidade de Santiago de Compostela E-15782 Santiago de Compostela Spain
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19
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Leigh T, Fernandez-Trillo P. Helical polymers for biological and medical applications. Nat Rev Chem 2020; 4:291-310. [PMID: 37127955 DOI: 10.1038/s41570-020-0180-5] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/24/2020] [Indexed: 12/14/2022]
Abstract
Helices are the most prevalent secondary structure in biomolecules and play vital roles in their activity. Chemists have been fascinated with mimicking this molecular conformation with synthetic materials. Research has now been devoted to the synthesis and characterization of helical materials, and to understand the design principles behind this molecular architecture. In parallel, work has been done to develop synthetic polymers for biological and medical applications. We now have access to materials with controlled size, molecular conformation, multivalency or functionality. As a result, synthetic polymers are being investigated in areas such as drug and gene delivery, tissue engineering, imaging and sensing, or as polymer therapeutics. Here, we provide a critical view of where these two fields, helical polymers and polymers for biological and medical applications, overlap. We have selected relevant polymer families and examples to illustrate the range of applications that can be targeted and the impact of the helical conformation on the performance. For each family of polymers, we briefly describe how they can be prepared, what helical conformations are observed and what parameters control helicity. We close this Review with an outlook of the challenges ahead, including the characterization of helicity through the process and the identification of biocompatibility.
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20
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Cobos K, Rodríguez R, Domarco O, Fernández B, Quiñoá E, Riguera R, Freire F. Polymeric Helical Structures à la Carte by Rational Design of Monomers. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c00085] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Katherine Cobos
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Rafael Rodríguez
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Olaya Domarco
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Berta Fernández
- Departamento de Química Física, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Emilio Quiñoá
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Ricardo Riguera
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Félix Freire
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
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21
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Suárez‐Picado E, Quiñoá E, Riguera R, Freire F. Chiral Overpass Induction in Dynamic Helical Polymers Bearing Pendant Groups with Two Chiral Centers. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201915213] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Esteban Suárez‐Picado
- Centro Singular de investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química OrgánicaUniversidade de Santiago de Compostela 15782 Santiago de Compostela Spain
| | - Emilio Quiñoá
- Centro Singular de investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química OrgánicaUniversidade de Santiago de Compostela 15782 Santiago de Compostela Spain
| | - Ricardo Riguera
- Centro Singular de investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química OrgánicaUniversidade de Santiago de Compostela 15782 Santiago de Compostela Spain
| | - Félix Freire
- Centro Singular de investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química OrgánicaUniversidade de Santiago de Compostela 15782 Santiago de Compostela Spain
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22
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Suárez-Picado E, Quiñoá E, Riguera R, Freire F. Chiral Overpass Induction in Dynamic Helical Polymers Bearing Pendant Groups with Two Chiral Centers. Angew Chem Int Ed Engl 2020; 59:4537-4543. [PMID: 31880378 DOI: 10.1002/anie.201915213] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Indexed: 12/16/2022]
Abstract
The dynamic behavior of helical polymers bearing pendant groups with two chiral centers was studied. Controlled conformational changes at the chiral units placed either closer to or further away from the main chain promote different helical structures. Although the first residue is usually responsible for determining a specific helicity (P or M), we now found that the second chiral center is also able to induce a preferred helical sense when it is located closer in space to the main chain, thereby cancelling the order from the first chiral moiety. This result was achieved through proper coordination with a metal cation. As proof of concept, poly(phenylacetylene)s (PPAs) that bear one and two chiral amino acid units of different sizes and configuration combinations (l/d-alanine and l/d-phenylalanine) as pendants were evaluated. In total, ten polymers were studied. This constitutes the first report of axial control from a remote stereocenter in polymers bearing complex chiral pendants.
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Affiliation(s)
- Esteban Suárez-Picado
- Centro Singular de investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782, Santiago, de Compostela, Spain
| | - Emilio Quiñoá
- Centro Singular de investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782, Santiago, de Compostela, Spain
| | - Ricardo Riguera
- Centro Singular de investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782, Santiago, de Compostela, Spain
| | - Félix Freire
- Centro Singular de investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782, Santiago, de Compostela, Spain
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23
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Liu Z, Jiang Y, Jiang J, Yuan C, Wang D, Liu M. Self-assembly of pyrene-appended glucono gelators: spacer regulated morphological change and inversion of circularly polarized luminescence. RSC Adv 2020; 10:6772-6776. [PMID: 35493896 PMCID: PMC9049720 DOI: 10.1039/c9ra10315e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Accepted: 02/03/2020] [Indexed: 12/19/2022] Open
Abstract
Pyrene-appended glucono gelators with different spacer lengths (two and four methylene units) were designed and found to form supramolecular gels in organic aqueous solvents. The shorter spacer gelator 1 was prone to self-assemble into nanotubes due to well stacking multi-bilayer unit, while gelator 2 with the longer spacer formed nanofibers due to the relatively disordered packing structure. Both of the gels showed supramolecular chirality as well as circularly polarized luminescence (CPL) due to the chirality transfer from the glucose moiety to the assembly. Interestingly, the CD and CPL signals were opposite for the two gels. It was suggested that the packing of the pyrene unit in the gels were different due to the spacer and resulted in the inversed chiroptical properties. The work provided a deeper understanding of the origin of the supramolecular chirality and furthers the design of the CPL materials. Pyrene-appended glucono gelators with different spacer lengths (two and four methylene units) were designed and found to form supramolecular gels in organic aqueous solvents.![]()
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Affiliation(s)
- Zongwen Liu
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- P. R. China
- CAS Center for Excellence in Nanoscience
| | - Yuqian Jiang
- CAS Center for Excellence in Nanoscience
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication
- Division of Nanophotonics
- National Center for Nanoscience and Technology (NCNST)
- Beijing 100190
| | - Jian Jiang
- CAS Center for Excellence in Nanoscience
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication
- Division of Nanophotonics
- National Center for Nanoscience and Technology (NCNST)
- Beijing 100190
| | - Chenhuan Yuan
- Beijing National Laboratory for Molecular Science
- CAS Key Laboratory of Colloid Interface and Chemical Thermodynamics
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Decai Wang
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- P. R. China
| | - Minghua Liu
- CAS Center for Excellence in Nanoscience
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication
- Division of Nanophotonics
- National Center for Nanoscience and Technology (NCNST)
- Beijing 100190
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24
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Alzubi M, Arias S, Rodríguez R, Quiñoá E, Riguera R, Freire F. Chiral Conflict as a Method to Create Stimuli‐Responsive Materials Based on Dynamic Helical Polymers. Angew Chem Int Ed Engl 2019; 58:13365-13369. [DOI: 10.1002/anie.201907069] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Revised: 07/06/2019] [Indexed: 11/05/2022]
Affiliation(s)
- Mohammad Alzubi
- Centro Singular de investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química OrgánicaUniversidade de Santiago de Compostela E-15782 Santiago de Compostela Spain
| | - Sandra Arias
- Centro Singular de investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química OrgánicaUniversidade de Santiago de Compostela E-15782 Santiago de Compostela Spain
| | - Rafael Rodríguez
- Centro Singular de investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química OrgánicaUniversidade de Santiago de Compostela E-15782 Santiago de Compostela Spain
| | - Emilio Quiñoá
- Centro Singular de investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química OrgánicaUniversidade de Santiago de Compostela E-15782 Santiago de Compostela Spain
| | - Ricardo Riguera
- Centro Singular de investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química OrgánicaUniversidade de Santiago de Compostela E-15782 Santiago de Compostela Spain
| | - Félix Freire
- Centro Singular de investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química OrgánicaUniversidade de Santiago de Compostela E-15782 Santiago de Compostela Spain
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25
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Geng Z, Xiong B, Wang L, Wang K, Ren M, Zhang L, Zhu J, Yang Z. Moebius strips of chiral block copolymers. Nat Commun 2019; 10:4090. [PMID: 31501424 PMCID: PMC6733789 DOI: 10.1038/s41467-019-11991-3] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2019] [Accepted: 07/30/2019] [Indexed: 12/21/2022] Open
Abstract
The Moebius topology (twisted, single-sided strip) is intriguing because of its structural elegance and distinct properties. Here we report the generation of block copolymer Moebius strips via a fast self-assembly of chiral block copolymer polystyrene-block-poly(D-lactide acid) (PS-b-PDLA) in tetrahydrofuran/water mixed solvents. The Moebius strip is formed by morphological evolution from large compound micelle (LCM) to spindle-like micelle (SLM) and then to toroid with a 180° twist along the ring. Mechanism insight reveals that a subtle balance of crystallization of PDLA and microphase separation between PS and PDLA chains dominates the formation of Moebius strips. An intriguing helix-helix transition occurs during the chiral transfer from microphase to assemblies, which is driven by relaxation of the internal stress within SLM related to orientated stretching of PS chains. Mesoporous chiral channels can be generated within Moebius strips after removal of PDLA, which are interesting in chiral recognition, separation and asymmetric catalysis.
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Affiliation(s)
- Zhen Geng
- Key Lab of Material Chemistry for Energy Conversion and Storage of Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Bijin Xiong
- Key Lab of Material Chemistry for Energy Conversion and Storage of Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Liquan Wang
- Shanghai Key Lab of Advanced Polymeric Materials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Ke Wang
- Key Lab of Material Chemistry for Energy Conversion and Storage of Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Min Ren
- Key Lab of Material Chemistry for Energy Conversion and Storage of Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Lianbin Zhang
- Key Lab of Material Chemistry for Energy Conversion and Storage of Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China.
| | - Jintao Zhu
- Key Lab of Material Chemistry for Energy Conversion and Storage of Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China.
| | - Zhenzhong Yang
- Institute of Polymer Science and Engineering, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China.
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26
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Alzubi M, Arias S, Rodríguez R, Quiñoá E, Riguera R, Freire F. Chiral Conflict as a Method to Create Stimuli‐Responsive Materials Based on Dynamic Helical Polymers. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201907069] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Mohammad Alzubi
- Centro Singular de investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química OrgánicaUniversidade de Santiago de Compostela E-15782 Santiago de Compostela Spain
| | - Sandra Arias
- Centro Singular de investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química OrgánicaUniversidade de Santiago de Compostela E-15782 Santiago de Compostela Spain
| | - Rafael Rodríguez
- Centro Singular de investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química OrgánicaUniversidade de Santiago de Compostela E-15782 Santiago de Compostela Spain
| | - Emilio Quiñoá
- Centro Singular de investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química OrgánicaUniversidade de Santiago de Compostela E-15782 Santiago de Compostela Spain
| | - Ricardo Riguera
- Centro Singular de investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química OrgánicaUniversidade de Santiago de Compostela E-15782 Santiago de Compostela Spain
| | - Félix Freire
- Centro Singular de investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química OrgánicaUniversidade de Santiago de Compostela E-15782 Santiago de Compostela Spain
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27
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Novotná V, Hamplová V, Lejček L, Pociecha D, Cigl M, Fekete L, Glogarová M, Bednárová L, Majewski PW, Gorecka E. Organic nanotubes created from mesogenic derivatives. NANOSCALE ADVANCES 2019; 1:2835-2839. [PMID: 36133609 PMCID: PMC9418705 DOI: 10.1039/c9na00175a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Accepted: 06/15/2019] [Indexed: 06/16/2023]
Abstract
A facile route to prepare nanotubes from rod-like mesogens dissolved in typical organic solvents is reported. For selected types of chiral rod-like molecules, nanotubes were formed from both enantiomers and racemic mixtures by slow evaporation from solution, regardless of the solvent, concentration or deposition type. The obtained supramolecular assemblies were studied using AFM, TEM and SEM techniques, and other experimental techniques (IR, UV-Vis spectroscopy and X-ray diffraction) were also applied. The difference in the surface tension at opposite crystallite surfaces is suggested as a possible mechanism for nanotube nucleation. We propose a quite new rolling-up mechanism related to the surface tension difference at opposite crystallite surfaces.
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Affiliation(s)
- Vladimíra Novotná
- Institute of Physics of the Czech Academy of Sciences Na Slovance 2 CZ-182 21 Prague 8 Czech Republic +420286890527 +420266053111
| | - Věra Hamplová
- Institute of Physics of the Czech Academy of Sciences Na Slovance 2 CZ-182 21 Prague 8 Czech Republic +420286890527 +420266053111
| | - Lubor Lejček
- Institute of Physics of the Czech Academy of Sciences Na Slovance 2 CZ-182 21 Prague 8 Czech Republic +420286890527 +420266053111
| | - Damian Pociecha
- Faculty of Chemistry, University of Warsaw ul. Zwirki i Wigury 101 02-089 Warsaw Poland +48228221075
| | - Martin Cigl
- Institute of Physics of the Czech Academy of Sciences Na Slovance 2 CZ-182 21 Prague 8 Czech Republic +420286890527 +420266053111
| | - Ladislav Fekete
- Institute of Physics of the Czech Academy of Sciences Na Slovance 2 CZ-182 21 Prague 8 Czech Republic +420286890527 +420266053111
| | - Milada Glogarová
- Institute of Physics of the Czech Academy of Sciences Na Slovance 2 CZ-182 21 Prague 8 Czech Republic +420286890527 +420266053111
| | - Lucie Bednárová
- Institute of Organic Chemistry and Biochemistry of the CAS Flemingovo n. 2,166 10 Prague 6 CZ-182 21 Prague 6 Czech Republic
| | - Pawel W Majewski
- Faculty of Chemistry, University of Warsaw ul. Zwirki i Wigury 101 02-089 Warsaw Poland +48228221075
| | - Ewa Gorecka
- Faculty of Chemistry, University of Warsaw ul. Zwirki i Wigury 101 02-089 Warsaw Poland +48228221075
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28
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Worch JC, Prydderch H, Jimaja S, Bexis P, Becker ML, Dove AP. Stereochemical enhancement of polymer properties. Nat Rev Chem 2019. [DOI: 10.1038/s41570-019-0117-z] [Citation(s) in RCA: 114] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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29
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Niu D, Jiang Y, Ji L, Ouyang G, Liu M. Self‐Assembly through Coordination and π‐Stacking: Controlled Switching of Circularly Polarized Luminescence. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201900607] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Dian Niu
- CAS Key Laboratory of Colloid, Interface and Chemical ThermodynamicsInstitute of ChemistryChinese Academy of Sciences North First Street 2, ZhongGuanCun Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Yuqian Jiang
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication National Center for Nanoscience and Technology BeiYiTiao No. 11, ZhongGuanCun Beijing 100190 China
| | - Lukang Ji
- CAS Key Laboratory of Colloid, Interface and Chemical ThermodynamicsInstitute of ChemistryChinese Academy of Sciences North First Street 2, ZhongGuanCun Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Guanghui Ouyang
- CAS Key Laboratory of Colloid, Interface and Chemical ThermodynamicsInstitute of ChemistryChinese Academy of Sciences North First Street 2, ZhongGuanCun Beijing 100190 China
| | - Minghua Liu
- CAS Key Laboratory of Colloid, Interface and Chemical ThermodynamicsInstitute of ChemistryChinese Academy of Sciences North First Street 2, ZhongGuanCun Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
- Collaborative Innovation Centre of Chemical Science and Engineering Tianjin China
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30
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Niu D, Jiang Y, Ji L, Ouyang G, Liu M. Self‐Assembly through Coordination and π‐Stacking: Controlled Switching of Circularly Polarized Luminescence. Angew Chem Int Ed Engl 2019; 58:5946-5950. [DOI: 10.1002/anie.201900607] [Citation(s) in RCA: 106] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 02/23/2019] [Indexed: 12/18/2022]
Affiliation(s)
- Dian Niu
- CAS Key Laboratory of Colloid, Interface and Chemical ThermodynamicsInstitute of ChemistryChinese Academy of Sciences North First Street 2, ZhongGuanCun Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Yuqian Jiang
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication National Center for Nanoscience and Technology BeiYiTiao No. 11, ZhongGuanCun Beijing 100190 China
| | - Lukang Ji
- CAS Key Laboratory of Colloid, Interface and Chemical ThermodynamicsInstitute of ChemistryChinese Academy of Sciences North First Street 2, ZhongGuanCun Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Guanghui Ouyang
- CAS Key Laboratory of Colloid, Interface and Chemical ThermodynamicsInstitute of ChemistryChinese Academy of Sciences North First Street 2, ZhongGuanCun Beijing 100190 China
| | - Minghua Liu
- CAS Key Laboratory of Colloid, Interface and Chemical ThermodynamicsInstitute of ChemistryChinese Academy of Sciences North First Street 2, ZhongGuanCun Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
- Collaborative Innovation Centre of Chemical Science and Engineering Tianjin China
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31
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Cobos K, Quiñoá E, Riguera R, Freire F. Chiral-to-Chiral Communication in Polymers: A Unique Approach To Control Both Helical Sense and Chirality at the Periphery. J Am Chem Soc 2018; 140:12239-12246. [PMID: 30156414 DOI: 10.1021/jacs.8b07782] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
A novel approach to the classical Sergeants and Soldiers effect, using chiral Sergeants and chiral Soldiers, allows control over both helical and external chirality in helical polymers. In the systems reported here, it is possible to induce the same helical sense ( M or P) from either of the two enantiomers of a chiral pendant group ["chiral Soldier", major component; i.e., ( R)- or ( S)-1] when it faces a single enantiomer of an appropriate "chiral Sergeant" [minor component; i.e., ( S)-2]. For instance, the copolymer series poly[( R)-1 r- co-( S)-2(1- r)], poly[( S)-1 r- co-( S)-2(1- r)], and poly[( rac)-1 r- co-( S)-2(1- r)] adopt the same P helix even though the major component shows the opposite absolute configuration. This chiral-to-chiral communication effect is transmitted by the stabilization of different conformations in each enantiomeric form of the Soldier. As a result, this groundbreaking approximation to the Sergeants and Soldiers effect allows the preparation of a single-handed helix-which depends only on the Sergeant's configuration-with different chiralities on the helix periphery. Thus, a P helix can be decorated with the R isomer, S isomer, or even a racemic mixture of the chiral Soldier. A change in the absolute configuration of the Sergeant affords the opposite M helix, which can also be decorated with the R isomer, S isomer, or racemic mixture of the chiral Soldier.
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Affiliation(s)
- Katherine Cobos
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica , Universidade de Santiago de Compostela , E-15782 Santiago de Compostela , Spain
| | - Emilio Quiñoá
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica , Universidade de Santiago de Compostela , E-15782 Santiago de Compostela , Spain
| | - Ricardo Riguera
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica , Universidade de Santiago de Compostela , E-15782 Santiago de Compostela , Spain
| | - Félix Freire
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica , Universidade de Santiago de Compostela , E-15782 Santiago de Compostela , Spain
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32
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Zhao B, Lin J, Deng J, Liu D. Seed-Surface Grafting Precipitation Polymerization for Preparing Microsized Optically Active Helical Polymer Core/Shell Particles and Their Application in Enantioselective Crystallization. Macromol Rapid Commun 2018; 39:e1800072. [DOI: 10.1002/marc.201800072] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Revised: 03/18/2018] [Indexed: 11/09/2022]
Affiliation(s)
- Biao Zhao
- State Key Laboratory of Chemical Resource Engineering; Beijing University of Chemical Technology; Beijing 100029 China
- College of Materials Science and Engineering; Beijing University of Chemical Technology; Beijing 100029 China
| | - Jiangfeng Lin
- State Key Laboratory of Chemical Resource Engineering; Beijing University of Chemical Technology; Beijing 100029 China
- College of Materials Science and Engineering; Beijing University of Chemical Technology; Beijing 100029 China
| | - Jianping Deng
- State Key Laboratory of Chemical Resource Engineering; Beijing University of Chemical Technology; Beijing 100029 China
- College of Materials Science and Engineering; Beijing University of Chemical Technology; Beijing 100029 China
| | - Dong Liu
- BUCT-CWRU International Joint Laboratory and College of Energy; Beijing University of Chemical Technology; Beijing 100029 China
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33
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Yuan C, Jiang J, Sun H, Wang D, Hu Y, Liu M. Opposite Enantioselectivity by Nanotubes and Nanospheres Self-Assembled from Dirhodium(II) and an l
-Glutamic Acid Terminated Bolaamphiphile. ChemCatChem 2018. [DOI: 10.1002/cctc.201800081] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Chenhuan Yuan
- Department Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; Nanjing 210009 Jiangsu P.R. China
- Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience; National Center for Nanoscience and Technology; Beijing 100190 P.R.China
| | - Jian Jiang
- Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience; National Center for Nanoscience and Technology; Beijing 100190 P.R.China
| | - Hui Sun
- Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience; National Center for Nanoscience and Technology; Beijing 100190 P.R.China
| | - Decai Wang
- Department Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; Nanjing 210009 Jiangsu P.R. China
| | - Yonghong Hu
- Department Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; Nanjing 210009 Jiangsu P.R. China
| | - Minghua Liu
- Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience; National Center for Nanoscience and Technology; Beijing 100190 P.R.China
- CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics; Institute of Chemistry, Chinese Academy of Science; Beijing 100190 P.R.China
- Collaborative Innovation Center of Chemical Science and Engineering; Tianjin 300072 P.R. China
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34
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35
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Arias S, Rodríguez R, Quiñoá E, Riguera R, Freire F. Chiral Coalition in Helical Sense Enhancement of Copolymers: The Role of the Absolute Configuration of Comonomers. J Am Chem Soc 2018; 140:667-674. [DOI: 10.1021/jacs.7b09965] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Sandra Arias
- Centro Singular de investigación
en Química Biolóxica e Materiais Moleculares (CIQUS)
and Departamento de Química Orgánica, Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain
| | - Rafael Rodríguez
- Centro Singular de investigación
en Química Biolóxica e Materiais Moleculares (CIQUS)
and Departamento de Química Orgánica, Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain
| | - Emilio Quiñoá
- Centro Singular de investigación
en Química Biolóxica e Materiais Moleculares (CIQUS)
and Departamento de Química Orgánica, Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain
| | - Ricardo Riguera
- Centro Singular de investigación
en Química Biolóxica e Materiais Moleculares (CIQUS)
and Departamento de Química Orgánica, Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain
| | - Félix Freire
- Centro Singular de investigación
en Química Biolóxica e Materiais Moleculares (CIQUS)
and Departamento de Química Orgánica, Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain
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36
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Rodríguez R, Arias S, Quiñoá E, Riguera R, Freire F. The role of the secondary structure of helical poly(phenylacetylene)s in the formation of nanoparticles from polymer-metal complexes (HPMCs). NANOSCALE 2017; 9:17752-17757. [PMID: 28862281 DOI: 10.1039/c7nr04829g] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The great importance of the secondary structure (compressed/stretched) of helical poly(phenylacetylene)s (PPAs) in the formation of nanostructures (nanospheres and nanotoroids) by complexation with metal ions of diverse valences is demonstrated. PPAs bearing the same chelating units [anilide of (R)-methoxyphenylacetic acid] but displaying different helical scaffolds show great differences in their nanostructuration due to the different secondary structures of their helices despite the analogous ways in which their mono- and divalent metal ions form complexes. This key 3-D structural feature has not been taken into account previously when studying the nanostructuration of helical polymer-metal complexes (HPMCs).
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Affiliation(s)
- Rafael Rodríguez
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain.
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37
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Freire F, Quiñoá E, Riguera R. Chiral nanostructure in polymers under different deposition conditions observed using atomic force microscopy of monolayers: poly(phenylacetylene)s as a case study. Chem Commun (Camb) 2017; 53:481-492. [PMID: 27827473 DOI: 10.1039/c6cc05598b] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Dynamic poly(phenylacetylene)s (PPAs) adopt helical structures with different elongation or helical senses depending on the types of pendants. Hence, a good knowledge of the parameters that define their structures becomes a key factor in the understanding of their properties and functions. Herein, the techniques used for the study of the secondary structure of PPAs using atomic-force microscopy (AFM) are presented, with special attention directed towards the methods used for the preparation of monolayers, and their consequences in the quality of the AFM images. Thus, monolayers formed by drop casting, spin coating followed by crystallization or annealing, Langmuir-Blodgett and Langmuir-Schaefer methods, onto highly oriented pyrolytic graphite (HOPG) or mica, are described, together with the AFM images and the resulting helical structure obtained for different PPAs. Furthermore, some conclusions are drawn both on the adequacy of the different techniques for the formation of monolayers and on the solid supports utilized to elucidate the secondary structure of different PPAs.
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Affiliation(s)
- F Freire
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain.
| | - E Quiñoá
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain.
| | - R Riguera
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain.
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38
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Ma W, Xu L, de Moura AF, Wu X, Kuang H, Xu C, Kotov NA. Chiral Inorganic Nanostructures. Chem Rev 2017; 117:8041-8093. [DOI: 10.1021/acs.chemrev.6b00755] [Citation(s) in RCA: 485] [Impact Index Per Article: 69.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
| | | | - André F. de Moura
- Department
of Chemistry, Federal University of São Carlos, CP 676, CEP 13.565-905, São Carlos, SP, Brazil
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39
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Wang S, Feng X, Zhang J, Yu P, Guo Z, Li Z, Wan X. Helical Conformations of Poly(3,5-disubstituted phenylacetylene)s Tuned by Pendant Structure and Solvent. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b00615] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Sheng Wang
- Beijing
National Laboratory for Molecular Sciences, Key Laboratory of Polymer
Chemistry and Physics of Ministry of Education, College of Chemistry
and Molecular Engineering, Peking University, Beijing 100871, China
| | - Xuanyu Feng
- Beijing
National Laboratory for Molecular Sciences, Key Laboratory of Polymer
Chemistry and Physics of Ministry of Education, College of Chemistry
and Molecular Engineering, Peking University, Beijing 100871, China
| | - Jie Zhang
- Beijing
National Laboratory for Molecular Sciences, Key Laboratory of Polymer
Chemistry and Physics of Ministry of Education, College of Chemistry
and Molecular Engineering, Peking University, Beijing 100871, China
| | - Ping Yu
- School
of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266061, Shandong, China
| | - Zongxia Guo
- School
of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266061, Shandong, China
| | - Zhibo Li
- School
of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266061, Shandong, China
| | - Xinhua Wan
- Beijing
National Laboratory for Molecular Sciences, Key Laboratory of Polymer
Chemistry and Physics of Ministry of Education, College of Chemistry
and Molecular Engineering, Peking University, Beijing 100871, China
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40
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Zhao B, Deng J, Deng J. Optically Active Helical Polyacetylene Self-Assembled into Chiral Micelles Used As Nanoreactor for Helix-Sense-Selective Polymerization. ACS Macro Lett 2017; 6:6-10. [PMID: 35632871 DOI: 10.1021/acsmacrolett.6b00808] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Chiral micelles have been drawing ever-increasing attention because of their potentials in mimicking the unique stereochemical effects of enzymes. This article reports on the first success in preparing chiral micelles through self-assembly of helical polyacetylene bearing cholic acid pendants. The micelles were further used as chiral nanoreactor, in which achiral acetylenic monomer smoothly underwent helix-sense-selective polymerization (HSSP). The HSSPs directly established optically active core/shell nanoparticles whose shell and core both were constructed by helical polymers. The shells (or micelles) provided a protective effect for the preferably induced one-handed helical polymer chains in the cores. The present work provides insights into the self-assembly of chiral helical polymers, and also provides a powerful strategy for constructing novel chiral polymer nanoarchitectures.
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Affiliation(s)
- Biao Zhao
- State Key Laboratory of Chemical Resource Engineering and ‡College of Materials
Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jinrui Deng
- State Key Laboratory of Chemical Resource Engineering and ‡College of Materials
Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jianping Deng
- State Key Laboratory of Chemical Resource Engineering and ‡College of Materials
Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
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41
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Arias S, Núñez-Martínez M, Quiñoá E, Riguera R, Freire F. Simultaneous Adjustment of Size and Helical Sense of Chiral Nanospheres and Nanotubes Derived from an Axially Racemic Poly(phenylacetylene). SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2017; 13:1602398. [PMID: 27758030 DOI: 10.1002/smll.201602398] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Revised: 09/22/2016] [Indexed: 05/26/2023]
Abstract
Nanospheres and nanotubes with full control of their size and helical sense are obtained in chloroform from the axially racemic chiral poly(phenylacetylene) poly-(R)-1 using either Ag+ as both chiral inducer and cross-linking agent or Na+ as chiral inducer and Ag+ as cross-linking agent. The size is tuned by the polymer/ion ratio while the helical sense is modulated by the polymer/cosolvent (i.e., MeCN) ratio. In this way, the helicity and the size of the nanoparticles can be easily interconverted by very simple experimental changes.
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Affiliation(s)
- Sandra Arias
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Manuel Núñez-Martínez
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Emilio Quiñoá
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Ricardo Riguera
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Félix Freire
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
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42
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Arias S, Núñez-Martínez M, Quiñoá E, Riguera R, Freire F. A general route to chiral nanostructures from helical polymers: P/M switch via dynamic metal coordination. Polym Chem 2017. [DOI: 10.1039/c7py00561j] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Macroscopically enantiomeric chiral nanospheres made from P or M helical polymer metal complexes can be obtained via dynamic coordination chemistry.
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Affiliation(s)
- Sandra Arias
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica
- Universidade de Santiago de Compostela
- 15782 Santiago de Compostela
- Spain
| | - Manuel Núñez-Martínez
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica
- Universidade de Santiago de Compostela
- 15782 Santiago de Compostela
- Spain
| | - Emilio Quiñoá
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica
- Universidade de Santiago de Compostela
- 15782 Santiago de Compostela
- Spain
| | - Ricardo Riguera
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica
- Universidade de Santiago de Compostela
- 15782 Santiago de Compostela
- Spain
| | - Félix Freire
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica
- Universidade de Santiago de Compostela
- 15782 Santiago de Compostela
- Spain
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43
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Alzubi M, Arias S, Louzao I, Quiñoá E, Riguera R, Freire F. Multipodal dynamic coordination involving cation–π interactions to control the structure of helical polymers. Chem Commun (Camb) 2017; 53:8573-8576. [DOI: 10.1039/c7cc04220e] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Dynamic coordination, by means of multipodal metal complexes and cation–π interactions, controls the structure of helical polymers.
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Affiliation(s)
- Mohammad Alzubi
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica
- Universidade de Santiago de Compostela
- E-15782 Santiago de Compostela
- Spain
| | - Sandra Arias
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica
- Universidade de Santiago de Compostela
- E-15782 Santiago de Compostela
- Spain
| | - Iria Louzao
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica
- Universidade de Santiago de Compostela
- E-15782 Santiago de Compostela
- Spain
| | - Emilio Quiñoá
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica
- Universidade de Santiago de Compostela
- E-15782 Santiago de Compostela
- Spain
| | - Ricardo Riguera
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica
- Universidade de Santiago de Compostela
- E-15782 Santiago de Compostela
- Spain
| | - Félix Freire
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica
- Universidade de Santiago de Compostela
- E-15782 Santiago de Compostela
- Spain
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44
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Wang S, Feng X, Zhao Z, Zhang J, Wan X. Reversible Cis-Cisoid to Cis-Transoid Helical Structure Transition in Poly(3,5-disubstituted phenylacetylene)s. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b02116] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Sheng Wang
- Beijing National Laboratory for
Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics
of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Xuanyu Feng
- Beijing National Laboratory for
Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics
of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Zhiyuan Zhao
- Beijing National Laboratory for
Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics
of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Jie Zhang
- Beijing National Laboratory for
Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics
of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Xinhua Wan
- Beijing National Laboratory for
Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics
of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
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45
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Yashima E, Ousaka N, Taura D, Shimomura K, Ikai T, Maeda K. Supramolecular Helical Systems: Helical Assemblies of Small Molecules, Foldamers, and Polymers with Chiral Amplification and Their Functions. Chem Rev 2016; 116:13752-13990. [PMID: 27754649 DOI: 10.1021/acs.chemrev.6b00354] [Citation(s) in RCA: 1198] [Impact Index Per Article: 149.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
In this review, we describe the recent advances in supramolecular helical assemblies formed from chiral and achiral small molecules, oligomers (foldamers), and helical and nonhelical polymers from the viewpoints of their formations with unique chiral phenomena, such as amplification of chirality during the dynamic helically assembled processes, properties, and specific functionalities, some of which have not been observed in or achieved by biological systems. In addition, a brief historical overview of the helical assemblies of small molecules and remarkable progress in the synthesis of single-stranded and multistranded helical foldamers and polymers, their properties, structures, and functions, mainly since 2009, will also be described.
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Affiliation(s)
- Eiji Yashima
- Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University , Chikusa-ku, Nagoya 464-8603, Japan
| | - Naoki Ousaka
- Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University , Chikusa-ku, Nagoya 464-8603, Japan
| | - Daisuke Taura
- Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University , Chikusa-ku, Nagoya 464-8603, Japan
| | - Kouhei Shimomura
- Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University , Chikusa-ku, Nagoya 464-8603, Japan
| | - Tomoyuki Ikai
- Graduate School of Natural Science and Technology, Kanazawa University , Kakuma-machi, Kanazawa 920-1192, Japan
| | - Katsuhiro Maeda
- Graduate School of Natural Science and Technology, Kanazawa University , Kakuma-machi, Kanazawa 920-1192, Japan
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46
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Yu H, Deng J. Alkynylated Cellulose Nanocrystals Simultaneously Serving as Chiral Source and Stabilizing Agent for Constructing Optically Active Helical Polymer Particles. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b02070] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Huli Yu
- State Key Laboratory of Chemical
Resource Engineering and College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jianping Deng
- State Key Laboratory of Chemical
Resource Engineering and College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
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47
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Lv Z, Chen Z, Shao K, Qing G, Sun T. Stimuli-Directed Helical Chirality Inversion and Bio-Applications. Polymers (Basel) 2016; 8:polym8080310. [PMID: 30974585 PMCID: PMC6432277 DOI: 10.3390/polym8080310] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Revised: 08/09/2016] [Accepted: 08/12/2016] [Indexed: 12/21/2022] Open
Abstract
Helical structure is a sophisticated ubiquitous motif found in nature, in artificial polymers, and in supramolecular assemblies from microscopic to macroscopic points of view. Significant progress has been made in the synthesis and structural elucidation of helical polymers, nevertheless, a new direction for helical polymeric materials, is how to design smart systems with controllable helical chirality, and further use them to develop chiral functional materials and promote their applications in biology, biochemistry, medicine, and nanotechnology fields. This review summarizes the recent progress in the development of high-performance systems with tunable helical chirality on receiving external stimuli and discusses advances in their applications as drug delivery vesicles, sensors, molecular switches, and liquid crystals. Challenges and opportunities in this emerging area are also presented in the conclusion.
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Affiliation(s)
- Ziyu Lv
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, China.
| | - Zhonghui Chen
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, China.
| | - Kenan Shao
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, China.
| | - Guangyan Qing
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, China.
| | - Taolei Sun
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, China.
- School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, China.
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Rodríguez R, Quiñoá E, Riguera R, Freire F. Architecture of Chiral Poly(phenylacetylene)s: From Compressed/Highly Dynamic to Stretched/Quasi-Static Helices. J Am Chem Soc 2016; 138:9620-8. [DOI: 10.1021/jacs.6b04834] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Rafael Rodríguez
- Centro Singular de Investigación
en Química Biolóxica e Materiais Moleculares (CIQUS)
and Departamento de Química Orgánica Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Emilio Quiñoá
- Centro Singular de Investigación
en Química Biolóxica e Materiais Moleculares (CIQUS)
and Departamento de Química Orgánica Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Ricardo Riguera
- Centro Singular de Investigación
en Química Biolóxica e Materiais Moleculares (CIQUS)
and Departamento de Química Orgánica Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Félix Freire
- Centro Singular de Investigación
en Química Biolóxica e Materiais Moleculares (CIQUS)
and Departamento de Química Orgánica Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
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Li W, Deng J. Optically Active Particles with Tunable Morphology: Prepared by Embedding Graphene Oxide/Fe3O4 in Helical Polyacetylene. ACS APPLIED MATERIALS & INTERFACES 2016; 8:16273-16279. [PMID: 27285800 DOI: 10.1021/acsami.6b02654] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We report a novel and straightforward methodology for constructing hybrid particles with tunable morphology (spherical vs nonspherical) by embedding inorganic components (graphene oxide and/or Fe3O4 nanoparticles) inside chiral helical polyacetylene. Scanning electron microscopic images ascertain the spherical or nonspherical morphology of the particles. The intense circular dichroism effects demonstrate that the hybrid particles (spherical, ellipsoid-like, and cake-like) possess remarkable optical activity. The use of the chiral magnetic hybrid particles in enantioselective crystallization of racemic phenylalanine demonstrates the kind of particles' significant potential applications in chiral technologies and chiral processes. The study not only creates an unprecedented type of chiral hybrid particles, but also provides a versatile strategy for preparing advanced functional hybrid particles with tunable morphology from polymers and even from inorganic and metallic materials.
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Affiliation(s)
- Weifei Li
- State Key Laboratory of Chemical Resource Engineering and College of Materials Science and Engineering, Beijing University of Chemical Technology , Beijing 100029, China
| | - Jianping Deng
- State Key Laboratory of Chemical Resource Engineering and College of Materials Science and Engineering, Beijing University of Chemical Technology , Beijing 100029, China
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