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Zheng C. Unexpected toroidal micelles formed from St/MMA gradient copolymers. SOFT MATTER 2022; 18:5706-5713. [PMID: 35876330 DOI: 10.1039/d2sm00619g] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Toroidal micelles are of great interest and rarely observed in gradient copolymer systems. Herein, we report massive toroidal micelles formed from styrene (St)/methyl methacrylate (MMA) gradient copolymers using a common solvent mixing method followed by a cooling-heating procedure. Furthermore, we demonstrate that the obtained toroidal morphology is sensitively dependent on a heat treatment procedure. Solely spherical micelles are obtained by a common solvent mixing method. These spherical micelles could be transformed into toroidal micelles via vesicles during a cooling-heating process. When a reverse heating-cooling process is adopted, no toroidal micelles formed. Thus, these results add new members to the family of toroidal micelles and reveal pathway dominating morphologies in gradient copolymer micelles.
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Affiliation(s)
- Chao Zheng
- Department of Applied Chemistry, College of Materials Science and Engineering, Chongqing Jiaotong University, Chongqing 400074, P. R. China.
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2
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Faujan NH, Abedi Karjiban R, Kashaban I, Basri M, Basri H. Computational simulation of palm kernel oil-based esters nano-emulsions aggregation as a potential parenteral drug delivery system. ARAB J CHEM 2019. [DOI: 10.1016/j.arabjc.2015.03.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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3
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Yang Y, Chen F, Tian X, Chen T, Wu L, Jin LY. Supramolecular nanostructures constructed by rod-coil molecular isomers: effect of rod sequences on molecular assembly. SOFT MATTER 2019; 15:6718-6724. [PMID: 31389465 DOI: 10.1039/c9sm01279f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Coil-rod-coil molecules, composed of flexible oligoether chains and conjugated rod blocks, have a well-known ability to produce various nanostructures in bulk and in aqueous solution. Herein we report the synthesis and self-assembly of coil-rod-coil molecules based on the sequence of the rod building block and the type of oligoether coil chain. These molecules consist of conjugated rod segments, which are composed of biphenyl, terphenyl, and acetylenic bonds, with chiral oligoether chains as flexible coil segments. The experimental results imply that the sequence of the rod segments markedly influences the self-assembled nanostructures of coil-rod-coil molecules in the bulk state, and that the type of coil chain strongly affects the morphology of the supramolecular nanoassemblies of these molecules in aqueous solution. In the bulk state, molecules 1a and 1b, which contain biphenyl units connected to the end of the coil segments self-organize into a hexagonal perforated lamellar phase, and oblique columnar and body-centred tetragonal structures, respectively. However, molecules 2a and 2b bearing terphenyl units linked to the end of the coil segments self-assemble into lamellar, hexagonal perforated lamellar and hexagonal columnar structures. In aqueous solution, rod-coil molecular isomers with linear chiral oligoether chains self-assemble into helical nanofibres of various lengths. Meanwhile, isomers with chiral oligoether dendron chains self-organize into sheet-like nanoribbons of different sizes.
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Affiliation(s)
- Yuntian Yang
- Key Lab for Organism Resources of the Changbai Mountain and Functional Molecules, and Department of Chemistry, College of Science, Yanbian University, No. 977 Gongyuan Road, Yanji 133002, People's Republic of China.
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Tan J, Lei H, Liaw DJ, Chen X, Ma L, Cui C, Zhong Q, Cheng Y, Zhang Y. Catalyst-Free One-Step Preparation of Self-Crosslinked pH-Responsive Vesicles. Macromol Rapid Commun 2019; 40:e1900149. [PMID: 31111990 DOI: 10.1002/marc.201900149] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 04/28/2019] [Indexed: 01/07/2023]
Abstract
The fabrication of block copolymer (BCP) vesicles with controlled membrane permeability and promising stability remains a considerable challenge. Herein, a new type of pH-responsive and self-crosslinked vesicle based on a hydrolytically hindered urea bond is reported. This kind of vesicle is formed by the self-assembly of a pH-responsive and hydrolytically self-crosslinkable copolymer poly(ethylene glycol)-block-poly[2-(3-(tert-butyl)-3-ethylureido)ethyl methacrylate-co-2-(diethylamino)ethyl methacrylate] (PEG-b-P(TBEU-co-DEA)). The BCP can be easily synthesized by reversible addition-fragmentation chain transfer (RAFT) polymerization of 2-(3-(tert-butyl)-3-ethylureido)ethyl methacrylate (TBEU) and 2-(diethylamino)ethyl methacrylate (DEA) using PEG-based macro-chain transfer agent. The copolymer could self-assemble into stable vesicles by the hydrophobic interaction and in situ cross-linking between amines and isocyanates after the hydrolysis of the hindered urea bonds without any catalyst. Dynamic light scattering (DLS) studies show that the vesicles exhibit enhanced stability against the dilution of organic solvent, and the size can be adjusted through the change of pH values. Moreover, the alkaline phosphatase-loaded vesicles can act as nano-reactor and enable free diffusion of small molecules into the vesicles, followed by the significantly improved fluorescence intensity of phosphate-caged fluorescein. This self-crosslinking and pH-sensitive vesicles may serve as a smart platform in controlled drug delivery and molecular reactor.
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Affiliation(s)
- Jidong Tan
- Department of Applied Chemistry, School of Science MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, and State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Hengxin Lei
- Department of Applied Chemistry, School of Science MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, and State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Der-Jang Liaw
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei, 10607, Taiwan
| | - Xingxing Chen
- Department of Applied Chemistry, School of Science MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, and State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Li Ma
- Department of Applied Chemistry, School of Science MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, and State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Chenhui Cui
- Department of Applied Chemistry, School of Science MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, and State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Qianyun Zhong
- Department of Applied Chemistry, School of Science MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, and State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Yilong Cheng
- Department of Applied Chemistry, School of Science MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, and State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Yanfeng Zhang
- Department of Applied Chemistry, School of Science MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, and State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 710049, China
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5
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Abstract
Reversible helical polymerization of toroids with rapid response to heating–cooling cycles and helicity control in the presence of a chiral regulator.
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Affiliation(s)
- Bowen Shen
- State Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun 130012
- China
| | - Myongsoo Lee
- State Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun 130012
- China
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6
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Wu D, Huang Y, Xu F, Mai Y, Yan D. Recent advances in the solution self-assembly of amphiphilic “rod-coil” copolymers. ACTA ACUST UNITED AC 2017. [DOI: 10.1002/pola.28517] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Dongdong Wu
- School of Chemistry and Chemical Engineering, Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing, Shanghai Jiao Tong University; 800 Dongchuan Road Shanghai 200240 People‘s Republic of China
| | - Yinjuan Huang
- School of Chemistry and Chemical Engineering, Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing, Shanghai Jiao Tong University; 800 Dongchuan Road Shanghai 200240 People‘s Republic of China
| | - Fugui Xu
- School of Chemistry and Chemical Engineering, Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing, Shanghai Jiao Tong University; 800 Dongchuan Road Shanghai 200240 People‘s Republic of China
| | - Yiyong Mai
- School of Chemistry and Chemical Engineering, Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing, Shanghai Jiao Tong University; 800 Dongchuan Road Shanghai 200240 People‘s Republic of China
| | - Deyue Yan
- School of Chemistry and Chemical Engineering, Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing, Shanghai Jiao Tong University; 800 Dongchuan Road Shanghai 200240 People‘s Republic of China
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7
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TSUTSUMI H, SAWADA T, MIHARA H. Development of Nano- and Bio-Materials Using Nanofibers Fabricated from Self-Assembling Peptides. KOBUNSHI RONBUNSHU 2017. [DOI: 10.1295/koron.2016-0065] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Hiroshi TSUTSUMI
- School of Life Science and Technology, Tokyo Institute of Technology
| | - Toshiki SAWADA
- School of Materials and Chemical Technology, Tokyo Institute of Technology
| | - Hisakazu MIHARA
- School of Life Science and Technology, Tokyo Institute of Technology
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8
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Bhatia S, Camacho LC, Haag R. Pathogen Inhibition by Multivalent Ligand Architectures. J Am Chem Soc 2016; 138:8654-66. [DOI: 10.1021/jacs.5b12950] [Citation(s) in RCA: 133] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Sumati Bhatia
- Institut
für Chemie
und Biochemie, Freie Universität Berlin, Takustrasse 3, 14195 Berlin, Germany
| | - Luis Cuellar Camacho
- Institut
für Chemie
und Biochemie, Freie Universität Berlin, Takustrasse 3, 14195 Berlin, Germany
| | - Rainer Haag
- Institut
für Chemie
und Biochemie, Freie Universität Berlin, Takustrasse 3, 14195 Berlin, Germany
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9
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Adachi H, Hirai Y, Ikeda T, Maeda M, Hori R, Kutsumizu S, Haino T. Photoresponsive Toroidal Nanostructure Formed by Self-Assembly of Azobenzene-Functionalized Tris(phenylisoxazolyl)benzene. Org Lett 2016; 18:924-7. [DOI: 10.1021/acs.orglett.5b03622] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Hiroaki Adachi
- Department
of Chemistry, Graduate School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8526, Japan
| | - Yuko Hirai
- Department
of Chemistry, Graduate School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8526, Japan
| | - Toshiaki Ikeda
- Department
of Chemistry, Graduate School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8526, Japan
| | - Makoto Maeda
- Natural
Science Center for Basic Research and Development, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8530, Japan
| | - Ryo Hori
- Department
of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Yanagido, Gifu 501-1193, Japan
| | - Shoichi Kutsumizu
- Department
of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Yanagido, Gifu 501-1193, Japan
| | - Takeharu Haino
- Department
of Chemistry, Graduate School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8526, Japan
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Chen J, Yu C, Shi Z, Yu S, Lu Z, Jiang W, Zhang M, He W, Zhou Y, Yan D. Ultrathin Alternating Copolymer Nanotubes with Readily Tunable Surface Functionalities. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201408290] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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11
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Chen J, Yu C, Shi Z, Yu S, Lu Z, Jiang W, Zhang M, He W, Zhou Y, Yan D. Ultrathin Alternating Copolymer Nanotubes with Readily Tunable Surface Functionalities. Angew Chem Int Ed Engl 2015; 54:3621-5. [DOI: 10.1002/anie.201408290] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2014] [Revised: 12/31/2014] [Indexed: 11/07/2022]
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12
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Liu Y, Zhong K, Li Z, Wang Y, Chen T, Lee M, Jin LY. Synthesis and self-assembly of amphiphilic bent-shaped molecules based on dibenzo[a,c]phenazine and poly(ethylene oxide) units. Polym Chem 2015. [DOI: 10.1039/c5py01056j] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Rod–coil molecules consisting of a dibenzo[a,c]phenazine unit and different lengths of PEO coils were synthesized, and their self-assembling behavior in both bulk and aqueous solutions was investigated.
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Affiliation(s)
- Yang Liu
- Key Laboratory for Organism Resources of the Changbai Mountain and Functional Molecules
- Ministry of Education
- and Department of Chemistry
- College of Science
- Yanbian University
| | - Keli Zhong
- College of Chemistry
- Chemical Engineering and Food Safety
- Bohai University
- Jinzhou
- P.R. China
| | - Zhaohua Li
- Key Laboratory for Organism Resources of the Changbai Mountain and Functional Molecules
- Ministry of Education
- and Department of Chemistry
- College of Science
- Yanbian University
| | - Yanqiu Wang
- State Key Lab of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun 130012
- China
| | - Tie Chen
- Key Laboratory for Organism Resources of the Changbai Mountain and Functional Molecules
- Ministry of Education
- and Department of Chemistry
- College of Science
- Yanbian University
| | - Myongsoo Lee
- State Key Lab of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun 130012
- China
| | - Long Yi Jin
- Key Laboratory for Organism Resources of the Changbai Mountain and Functional Molecules
- Ministry of Education
- and Department of Chemistry
- College of Science
- Yanbian University
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Zhu J, Zhong K, Liang Y, Wang Z, Chen T, Jin LY. Synthesis and self-assembly of oligomers containing cruciform 9,10-bis(arylethynyl)anthracene unit: formation of supramolecular nanostructures based on rod-length-dependent organization. Tetrahedron 2014. [DOI: 10.1016/j.tet.2013.12.072] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Kim Y, Li W, Shin S, Lee M. Development of toroidal nanostructures by self-assembly: rational designs and applications. Acc Chem Res 2013; 46:2888-97. [PMID: 24053785 DOI: 10.1021/ar400027c] [Citation(s) in RCA: 124] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Toroidal nanostructures are symmetrical ring-shaped structures with a central internal pore. Interestingly, in nature, many transmembrane proteins such as β-barrels and α-helical bundles have toroidal shapes. Because of this similarity, toroidal nanostructures can provide a template for the development of transmembrane channels. However, because of the lack of guiding principles for the construction of toroids, researchers have not widely studied the self-assembly of toroidal nanostructures as compared with the work on other supramolecular architectures. In this Account, we describe our recent efforts to construct toroidal nanostructures through the self-assembly of rationally designed building blocks. In one strategy for building these structures, we induce interfacial curvatures within the building blocks. When we laterally graft a bulky hydrophilic segment onto a p-oligophenyl rod or β-sheet peptides, the backbones of the self-assembled structures can bend in response to the steric effect of these large side groups, driving the p-oligophenyl rod or β-sheet peptides to form nanosized toriods. In another strategy, we can build toroids from bent-shaped building blocks by stacking the macrocycles. Aromatic segments with an internal angle of 120° can associate with each other in aqueous solution to form a hexameric macrocycle. Then these macrocycles can stack on top of each other via hydrophobic and π-π interactions and form highly uniform toroidal nanostructures. We provide many examples that illustrate these guiding principles for constructing toroidal nanostructures in aqueous solution. Efforts to create toroidal nanostructures through the self-assembly of elaborately designed molecular modules provide a fundamental approach toward the development of artificial transmembrane channels. Among the various toroids that we developed, a few nanostructures can insert into lipid membranes and allow limited transport in vesicles.
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Affiliation(s)
- Yongju Kim
- State Key Lab of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, China
| | - Wen Li
- State Key Lab of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, China
| | - Suyong Shin
- Department of Chemistry, Seoul National University, Seoul 151-747, Korea
| | - Myongsoo Lee
- State Key Lab of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, China
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Hsu CY, Chang SC, Hsu KY, Liu YL. Photoluminescent Toroids Formed by Temperature-Driven Self-Assembly of Rhodamine B End-Capped Poly(N
-isopropylacrylamide). Macromol Rapid Commun 2013; 34:689-94. [DOI: 10.1002/marc.201300038] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2013] [Revised: 02/14/2013] [Indexed: 11/05/2022]
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16
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Li W, Li J, Lee M. Fabrication of artificial toroid nanostructures by modified β-sheet peptides. Chem Commun (Camb) 2013; 49:8238-40. [DOI: 10.1039/c3cc44238a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Zhang J, Chen XF, Wei HB, Wan XH. Tunable assembly of amphiphilic rod–coil block copolymers in solution. Chem Soc Rev 2013; 42:9127-54. [DOI: 10.1039/c3cs60192g] [Citation(s) in RCA: 114] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Chang SC, Chiu SJ, Hsu CY, Chang Y, Liu YL. White-light fluorescent nanoparticles from self-assembly of rhodamine B-anchored amphiphilic poly(poly(ethylene glycol)methacrylate)-b-poly(glycidyl methacrylate) block copolymer. POLYMER 2012. [DOI: 10.1016/j.polymer.2012.08.026] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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