1
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Koroleva M. Multicompartment colloid systems with lipid and polymer membranes for biomedical applications. Phys Chem Chem Phys 2023; 25:21836-21859. [PMID: 37565484 DOI: 10.1039/d3cp01984e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/12/2023]
Abstract
Multicompartment structures have the potential for biomedical applications because they can act as multifunctional systems and provide simultaneous delivery of drugs and diagnostics agents of different types. Moreover, some of them mimic biological cells to some extent with organelles as separate sub-compartments. This article analyses multicompartment colloidal structures with smaller sub-units covered with lipid or polymer membranes that provide additional protection for the encapsulated substances. Vesosomes with small vesicles encapsulated in the inner pools of larger liposomes are the most studied systems to date. Dendrimer molecules are enclosed by a lipid bilayer shell in dendrosomes. Capsosomes, polymersomes-in-polymer capsules, and cubosomes-in-polymer capsules are composed of sub-compartments encapsulated within closed multilayer polymer membranes. Janus or Cerberus emulsions contain droplets composed of two or three phases: immiscible oils in O/W emulsions and aqueous polymer or salt solutions that are separated into two or three phases and form connected droplets in W/O emulsions. In more cases, the external surface of engulfed droplets in Janus or Cerberus emulsions is covered with a lipid or polymer monolayer. eLiposomes with emulsion droplets encapsulated into a bilayer shell have been given little attention so far, but they have very great prospects. In addition to nanoemulsion droplets, solid lipid nanoparticles, nanostructured lipid carriers and inorganic nanoparticles can be loaded into eLiposomes. Molecular engineering of the external membrane allows the creation of ligand-targeted and stimuli-responsive multifunctional systems. As a result, the efficacy of drug delivery can be significantly enhanced.
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Affiliation(s)
- Marina Koroleva
- Mendeleev University of Chemical Technology, Miusskaya sq. 9, Moscow 125047.
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2
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Mu D, Li JQ, Cong XS, Zhang H. Mesoscopic Detection of the Influence of a Third Component on the Self-Assembly Structure of A 2B Star Copolymer in Thin Films. Polymers (Basel) 2019; 11:E1636. [PMID: 31658618 PMCID: PMC6835291 DOI: 10.3390/polym11101636] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 10/04/2019] [Accepted: 10/08/2019] [Indexed: 11/16/2022] Open
Abstract
The most common self-assembly structure for A2B copolymer is the micellar structure with B/A segments being the core/corona, which greatly limits its application range. Following the principle of structure deciding the properties, a reformation in the molecular structure of A2B copolymer is made by appending three segments of a third component C with the same length to the three arms, resulting (AC)2CB 3-miktoarm star terpolymer. A reverse micellar structure in self-assembly is expected by regulating the C length and the pairwise repulsive strength of C to A/B, aiming to enrich its application range. Keeping both A and B lengths unchanged, when the repulsion strength of C to A is much stronger than C to B, from the results of mesoscopic simulations we found, with a progressive increase in C length, (AC)2CB terpolymer undergoes a transition in self-assembled structures, from a cylindrical structure with B component as the core, then to a deformed lamellar structure, and finally to a cylindrical structure with A component as the core. This reverse micellar structure is formed with the assistance of appended C segments, whose length is longer than half of B length, enhancing the flexibility of three arms, and further facilitating the aggregation of A component into the core. These results prove that the addition of a third component is a rational molecular design, in conjunction with some relevant parameters, enables the manufacturing of the desired self-assembly structure while avoiding excessive changes in the involved factors.
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Affiliation(s)
- Dan Mu
- College of Chemistry Chemical Engineering and Materials Science, Zaozhuang University, Zaozhuang 277160, China.
- Advanced Photonics Center, Southeast University, 2# Sipailou, Nanjing 210096, China.
- Zaozhuang Key Laboratory of Functional Materials, Zaozhuang 277160, China.
| | - Jian-Quan Li
- Opto-Electronic Engineering College, Zaozhuang University, Zaozhuang 277160, China.
| | - Xing-Shun Cong
- College of Chemistry Chemical Engineering and Materials Science, Zaozhuang University, Zaozhuang 277160, China.
| | - Han Zhang
- College of Chemistry Chemical Engineering and Materials Science, Zaozhuang University, Zaozhuang 277160, China.
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3
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Wu J, Wang Z, Yin Y, Jiang R, Li B. Laterally Nanostructured Vesicles, Polygonal Sheets, and Anisotropically Patched Micelles from Solution-State Self-Assembly of Miktoarm Star Quaterpolymers: A Simulation Study. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b00433] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jiaping Wu
- School of Physics, Key Laboratory of Functional Polymer Materials of Ministry of Education, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin, 300071, China
| | - Zheng Wang
- School of Physics, Key Laboratory of Functional Polymer Materials of Ministry of Education, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin, 300071, China
| | - Yuhua Yin
- School of Physics, Key Laboratory of Functional Polymer Materials of Ministry of Education, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin, 300071, China
| | - Run Jiang
- School of Physics, Key Laboratory of Functional Polymer Materials of Ministry of Education, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin, 300071, China
| | - Baohui Li
- School of Physics, Key Laboratory of Functional Polymer Materials of Ministry of Education, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin, 300071, China
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4
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Khomein P, Dutta K, Gnanasekaran K, Gianneschi NC, Thayumanavan S. Spatiotemporal control over the host–guest characteristics of a stimulus-triggerable trifunctional polymer assembly. Polym Chem 2019. [DOI: 10.1039/c8py01788c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The positional effect of stimuli-responsive units in tri-component copolymer vesicles is studied to explore variations in the host–guest properties of the assembly.
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Affiliation(s)
| | - Kingshuk Dutta
- Department of Chemistry
- University of Massachusetts
- Amherst
- USA
| | | | | | - S. Thayumanavan
- Department of Chemistry
- University of Massachusetts
- Amherst
- USA
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5
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Huang J, Guo Y, Gu S, Han G, Duan W, Gao C, Zhang W. Multicompartment block copolymer nanoparticles: recent advances and future perspectives. Polym Chem 2019. [DOI: 10.1039/c9py00452a] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
This review focuses on the synthesis of multicompartment block copolymer nanoparticles (MBCNs) via solution self-assembly and polymerization-induced self-assembly (PISA).
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Affiliation(s)
- Jing Huang
- Sinopec Research Institute of Petroleum Engineering
- Beijing
- China
| | - Yakun Guo
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Institute of Polymer Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
| | - Song Gu
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Institute of Polymer Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
| | - Guang Han
- State Key Laboratory of Special Functional Waterproof Materials
- Beijing Oriental Yuhong Waterproof Technology Co
- Ltd
- Beijing 100123
- China
| | - Wenfeng Duan
- State Key Laboratory of Special Functional Waterproof Materials
- Beijing Oriental Yuhong Waterproof Technology Co
- Ltd
- Beijing 100123
- China
| | - Chengqiang Gao
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Institute of Polymer Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
| | - Wangqing Zhang
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Institute of Polymer Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
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6
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Heinz D, Amado E, Kressler J. Polyphilicity-An Extension of the Concept of Amphiphilicity in Polymers. Polymers (Basel) 2018; 10:E960. [PMID: 30960885 PMCID: PMC6403972 DOI: 10.3390/polym10090960] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Revised: 08/23/2018] [Accepted: 08/23/2018] [Indexed: 12/12/2022] Open
Abstract
Recent developments in synthetic pathways as simple reversible-deactivation radical polymerization (RDRP) techniques and quantitative post-polymerization reactions, most notoriously 'click' reactions, leading to segmented copolymers, have broadened the molecular architectures accessible to polymer chemists as a matter of routine. Segments can be blocks, grafted chains, branchings, telechelic end-groups, covalently attached nanoparticles, nanodomains in networks, even sequences of random copolymers, and so on. In this review, we describe the variety of the segmented synthetic copolymers landscape from the point of view of their chemical affinity, or synonymous philicity, in bulk or with their surroundings, such as solvents, permeant gases, and solid surfaces. We focus on recent contributions, current trends, and perspectives regarding polyphilic copolymers, which have, in addition to hydrophilic and lipophilic segments, other philicities, for example, towards solvents, fluorophilic entities, ions, silicones, metals, nanoparticles, and liquid crystalline moieties.
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Affiliation(s)
- Daniel Heinz
- Department of Chemistry, Martin Luther University Halle-Wittenberg, D-06099 Halle (Saale), Germany.
| | - Elkin Amado
- Department of Chemistry, Martin Luther University Halle-Wittenberg, D-06099 Halle (Saale), Germany.
| | - Jörg Kressler
- Department of Chemistry, Martin Luther University Halle-Wittenberg, D-06099 Halle (Saale), Germany.
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7
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Carriedo GA, de la Campa R, Soto AP. Polyphosphazenes - Synthetically Versatile Block Copolymers (“Multi-Tool”) for Self-Assembly. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201800126] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Gabino A. Carriedo
- Department of Organic and Inorganic Chemistry; Facultad de Química; Universidad de Oviedo; Julián Clavería s/n 33006 Oviedo Spain
| | - Raquel de la Campa
- Department of Organic and Inorganic Chemistry; Facultad de Química; Universidad de Oviedo; Julián Clavería s/n 33006 Oviedo Spain
| | - Alejandro Presa Soto
- Department of Organic and Inorganic Chemistry; Facultad de Química; Universidad de Oviedo; Julián Clavería s/n 33006 Oviedo Spain
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8
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Liu H, Feng Y. Flower-Like Multicompartment Micelles with Janus-Core Self-Assembled from Fluorocarbon-Terminated Pluronics. MACROMOL CHEM PHYS 2018. [DOI: 10.1002/macp.201700558] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Hengchang Liu
- Chengdu Institute of Organic Chemistry; Chinese Academy of Sciences; Chengdu 610041 P. R. China
- University of Chinese Academy of Sciences; Beijing 100049 P. R. China
| | - Yujun Feng
- Chengdu Institute of Organic Chemistry; Chinese Academy of Sciences; Chengdu 610041 P. R. China
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9
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Zhao X, Wu W, Zhang J, Dai W, Zhao Y. Thermoresponse and self-assembly of an ABC star quarterpolymer with O2 and redox dual-responsive Y junctions. Polym Chem 2018. [DOI: 10.1039/c8py00085a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The stimuli-tunable LCST-type phase transition and self-assembly behaviors of a multi-responsive 3-miktoarm star bearing O2/redox-sensitive and H-bond-switchable Y junctions were revealed.
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Affiliation(s)
- Xiaoqi Zhao
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- College of Chemistry
- Chemical Engineering and Materials Science
| | - Wentao Wu
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- College of Chemistry
- Chemical Engineering and Materials Science
| | - Jian Zhang
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- College of Chemistry
- Chemical Engineering and Materials Science
| | - Wenxue Dai
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- College of Chemistry
- Chemical Engineering and Materials Science
| | - Youliang Zhao
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- College of Chemistry
- Chemical Engineering and Materials Science
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10
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Xu F, Wu D, Huang Y, Wei H, Gao Y, Feng X, Yan D, Mai Y. Multi-Dimensional Self-Assembly of a Dual-Responsive ABC Miktoarm Star Terpolymer. ACS Macro Lett 2017; 6:426-430. [PMID: 35610847 DOI: 10.1021/acsmacrolett.7b00031] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
This letter reports the first 2D self-assembly of ABC miktoarm star terpolymers based on dual-responsive polycaprolactone-arm-poly(N-isopropylacrylamide)-arm-poly(2-dimethylaminoethyl methacrylate) (μ-CID), which self-assembled into multilayer nanosheets comprising polycaprolactone single crystals in tetrahydrofuran (THF)/methanol mixed solvents. Interestingly, the nanosheets showed pH-responsive morphological transitions in aqueous solutions, yielding multidimensional assemblies, including 2D hexagonal aggregates, patchy nanofibrils, and patchy vesicles, at different pH values. The nanosheets also exhibited thermoresponsive transition to spherical patchy micelles at a temperature above the lower critical solution temperature (LCST) of the poly(N-isopropylacrylamide) block. This study offers a novel system for fundamental study on the self-assembly of miktoarm star terpolymers.
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Affiliation(s)
- Fugui Xu
- School
of Chemistry and Chemical Engineering, School of Electronic Information
and Electrical Engineering, Shanghai Key Laboratory of Electrical
Insulation and Thermal Ageing, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Dongdong Wu
- School
of Chemistry and Chemical Engineering, School of Electronic Information
and Electrical Engineering, Shanghai Key Laboratory of Electrical
Insulation and Thermal Ageing, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Yinjuan Huang
- School
of Chemistry and Chemical Engineering, School of Electronic Information
and Electrical Engineering, Shanghai Key Laboratory of Electrical
Insulation and Thermal Ageing, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Hao Wei
- School
of Chemistry and Chemical Engineering, School of Electronic Information
and Electrical Engineering, Shanghai Key Laboratory of Electrical
Insulation and Thermal Ageing, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Yong Gao
- College
of Chemistry and Key Lab of Environment Friendly Chemistry and Application
in Ministry of Education, Xiangtan University, Xiangtan 411105, Hunan Province, China
| | - Xinliang Feng
- School
of Chemistry and Chemical Engineering, School of Electronic Information
and Electrical Engineering, Shanghai Key Laboratory of Electrical
Insulation and Thermal Ageing, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Deyue Yan
- School
of Chemistry and Chemical Engineering, School of Electronic Information
and Electrical Engineering, Shanghai Key Laboratory of Electrical
Insulation and Thermal Ageing, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Yiyong Mai
- School
of Chemistry and Chemical Engineering, School of Electronic Information
and Electrical Engineering, Shanghai Key Laboratory of Electrical
Insulation and Thermal Ageing, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
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11
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Khan H, Chen S, Zhou H, Wang S, Zhang W. Synthesis of Multicompartment Nanoparticles of ABC Triblock Copolymers through Intramolecular Interactions of Two Solvophilic Blocks. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b00242] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Habib Khan
- Key
Laboratory of Functional Polymer Materials of the Ministry of
Education, Institute of Polymer Chemistry, and ‡Collaborative Innovation Center
of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, China
| | - Shengli Chen
- Key
Laboratory of Functional Polymer Materials of the Ministry of
Education, Institute of Polymer Chemistry, and ‡Collaborative Innovation Center
of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, China
| | - Heng Zhou
- Key
Laboratory of Functional Polymer Materials of the Ministry of
Education, Institute of Polymer Chemistry, and ‡Collaborative Innovation Center
of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, China
| | - Shuang Wang
- Key
Laboratory of Functional Polymer Materials of the Ministry of
Education, Institute of Polymer Chemistry, and ‡Collaborative Innovation Center
of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, China
| | - Wangqing Zhang
- Key
Laboratory of Functional Polymer Materials of the Ministry of
Education, Institute of Polymer Chemistry, and ‡Collaborative Innovation Center
of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, China
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12
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Liu H, Zhang J, Dai W, Zhao Y. Synthesis and self-assembly of a dual-responsive monocleavable ABCD star quaterpolymer. Polym Chem 2017. [DOI: 10.1039/c7py01638g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A modularly synthesized core-functionalized PEG-PSt-PCL-PAA miktoarm star can self-assemble into hollow nanocapsules that are sensitive to pH/redox stimuli and H-bond/polyion complexation.
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Affiliation(s)
- Huanhuan Liu
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- College of Chemistry
- Chemical Engineering and Materials Science
| | - Jian Zhang
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- College of Chemistry
- Chemical Engineering and Materials Science
| | - Wenxue Dai
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- College of Chemistry
- Chemical Engineering and Materials Science
| | - Youliang Zhao
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- College of Chemistry
- Chemical Engineering and Materials Science
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13
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Abstract
Stimuli-responsive polymers respond to a variety of external stimuli, which include optical, electrical, thermal, mechanical, redox, pH, chemical, environmental and biological signals. This paper is concerned with the process of forming such polymers by RAFT polymerization.
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14
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Moughton AO, Sagawa T, Yin L, Lodge TP, Hillmyer MA. Multicompartment Micelles by Aqueous Self-Assembly of μ-A(BC) n Miktobrush Terpolymers. ACS OMEGA 2016; 1:1027-1033. [PMID: 31457179 PMCID: PMC6640814 DOI: 10.1021/acsomega.6b00284] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Accepted: 11/09/2016] [Indexed: 06/08/2023]
Abstract
The aqueous self-assembly of μ-A(BC) n miktobrush terpolymers has been studied using dynamic light scattering and cryogenic transmission electron microscopy. In this system, the A block is hydrophilic poly(ethylene oxide), "O", the B block is hydrophobic poly(methylcaprolactone), "C", and the C block is hydrophobic and oleophobic poly(perfluoropropylene oxide), "F". Two terpolymers were examined: one with an average of about two C blocks and two F blocks and another with an average of about three C blocks and two F blocks. In both cases, the total molar mass is near 40 kg mol-1, and the volume fraction of the single O block is greater than 50% of the whole. Both samples form multicompartment micelle structures with subdivided solvophobic cores of C and F domains. The morphologies observed are generally analogous to those previously observed for the self-assembly of μ-ABC miktoarm star terpolymers, namely, "raspberry" and "hamburger" micelles; however, an intriguing multicompartment polymersome morphology with compartmentalized solvophobic bilayers is also observed. These results are interpreted in terms of the relative strengths of the competing interactions among the three blocks and the solvent and in terms of the constraints imposed by the miktobrush architecture.
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Affiliation(s)
- Adam O. Moughton
- Department
of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455-0431, United States
| | - Takanori Sagawa
- Department
of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455-0431, United States
- Department
of Chemical Engineering and Materials Science, University of Minnesota, 421 Washington Avenue SE, Minneapolis, Minnesota 55455-0431, United States
| | - Ligeng Yin
- Department
of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455-0431, United States
| | - Timothy P. Lodge
- Department
of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455-0431, United States
- Department
of Chemical Engineering and Materials Science, University of Minnesota, 421 Washington Avenue SE, Minneapolis, Minnesota 55455-0431, United States
| | - Marc A. Hillmyer
- Department
of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455-0431, United States
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15
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Suárez-Suárez S, Carriedo GA, Presa Soto A. Reversible Morphological Evolution of Responsive Giant Vesicles to Nanospheres by the Self-Assembly of Crystalline-b-Coil Polyphosphazene Block Copolymers. Chemistry 2016; 22:4483-91. [PMID: 26880712 DOI: 10.1002/chem.201504733] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2015] [Indexed: 01/01/2023]
Abstract
The preparation of long-term-stable giant unilamellar vesicles (GUVs, diameter ≥ 1000 nm) and large vesicles (diameter ≥ 500 nm) by self-assembly in THF of the crystalline-b-coil polyphosphazene block copolymers [N=P(OCH2CF3)2 ]n-b-[N=PMePh]m (4 a: n=30, m=20; 4 b: n=90, m=20; 4 c: n=200, m=85), which combine crystalline [N=P(OCH2CF3)2] and amorphous [N=PMePh] blocks, both of which are flexible, is reported. SEM, TEM, and wide-angle X-ray scattering experiments demonstrated that the stability of these GUVs is induced by crystallization of the [N=P(OCH2CF3)2] blocks at the capsule wall of the GUVS, with the [N=PMePh] blocks at the corona. Higher degrees of crystallinity of the capsule wall are found in the bigger vesicles, which suggests that the crystallinity of the [N=P(OCH2CF3)2] block facilitates the formation of large vesicles. The GUVs are responsive to strong acids (HOTf) and, after selective protonation of the [N=PMePh] block, they undergo a morphological evolution to smaller spherical micelles in which the core and corona roles have been inverted. This morphological evolution is totally reversible by neutralization with a base (NEt3), which regenerates the original GUVs. The monitoring of this process by dynamic light scattering allowed a mechanism to to be proposed for this reversible morphological evolution in which the block copolymer 4 a and its protonated form 4 a(+) are intermediates. This opens a route to the design of reversibly responsive polymeric systems in organic solvents. This is the first reversibly responsive vesicle system to operate in organic media.
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Affiliation(s)
- Silvia Suárez-Suárez
- Departmento de Química Orgánica e Inorgánica (IUQOEM), Universidad de Oviedo, Julián Clavería s/n, 33006, Oviedo, Spain
| | - Gabino A Carriedo
- Departmento de Química Orgánica e Inorgánica (IUQOEM), Universidad de Oviedo, Julián Clavería s/n, 33006, Oviedo, Spain
| | - Alejandro Presa Soto
- Departmento de Química Orgánica e Inorgánica (IUQOEM), Universidad de Oviedo, Julián Clavería s/n, 33006, Oviedo, Spain.
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16
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Zhu J, Liu Y, Xiao L, Zhou P. Temperature-Sensitive (BA)(AC)2Miktoarm Star Diblock Copolymer Based on PMMA, PPEGMA, and PNIPAm. MACROMOL CHEM PHYS 2016. [DOI: 10.1002/macp.201500449] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Jie Zhu
- The Key Laboratory of Space Applied Physics and Chemistry; Ministry of Education and Key Laboratory of Macromolecular Science and Technology of Shaanxi Province; Department of Applied Chemistry; Northwestern Polytechnical University; Xi'an 710072 P.R. China
| | - Yuyang Liu
- The Key Laboratory of Space Applied Physics and Chemistry; Ministry of Education and Key Laboratory of Macromolecular Science and Technology of Shaanxi Province; Department of Applied Chemistry; Northwestern Polytechnical University; Xi'an 710072 P.R. China
| | - Liqun Xiao
- The Key Laboratory of Space Applied Physics and Chemistry; Ministry of Education and Key Laboratory of Macromolecular Science and Technology of Shaanxi Province; Department of Applied Chemistry; Northwestern Polytechnical University; Xi'an 710072 P.R. China
| | - Ping Zhou
- The Key Laboratory of Space Applied Physics and Chemistry; Ministry of Education and Key Laboratory of Macromolecular Science and Technology of Shaanxi Province; Department of Applied Chemistry; Northwestern Polytechnical University; Xi'an 710072 P.R. China
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17
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Hu D, Yang H, Liu J, Lei Z. Synthesis of pH-responsive β-CD-based star polymer and impact of its self-assembly behavior on pectinase activity. Biotechnol Appl Biochem 2016; 64:187-194. [PMID: 26749579 DOI: 10.1002/bab.1474] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2015] [Accepted: 12/30/2015] [Indexed: 01/30/2023]
Abstract
A novel type of pH-responsive star polymer based on β-cyclodextrin (β-CD) was synthesized and further covalently conjugated with enzyme. The impact of its self-assembly behavior on enzyme activity was investigated. In our design, azide containing the polymer (N3 )7 -β-CD-(PtBA)14 was synthesized via atom transfer radical polymerization of tert-butyl acrylate using (N3 )7 -β-CD-(Br)14 as the multifunctional initiator. The final product (N3 )7 -β-CD-(PAA)14 was obtained via hydrolysis and covalently conjugating pectinase onto pH-responsive polyacrylic acid (PAA) arms. PAA can change its conformation with the self-assembly by altered pH, leading its nanostructure into micellar nanoparticles in aqueous solution and further affecting the activity of immobilized pectinase. The results were proved by fluorescence spectroscopy and dynamic light scattering. This system proves that the activity of immobilized enzyme can be tailored predictably, and this pH-responsive polymer holds great potential for controllable delivery of enzymes.
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Affiliation(s)
- Dong Hu
- Key Laboratory of Applied Surface and Colloid Chemistry, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, Shaanxi, People's Republic of China
| | - Hong Yang
- Basic Experimental Teaching Center, Shaanxi Normal University, Xi'an, Shaanxi, People's Republic of China
| | - Jiangtao Liu
- College of Pharmacy, Shaanxi University of Chinese Medicine, Xianyang, Shaanxi, People's Republic of China
| | - Zhongli Lei
- Key Laboratory of Applied Surface and Colloid Chemistry, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, Shaanxi, People's Republic of China
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18
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Li S, He J, Zhang M, Wang H, Ni P. Multicompartment morphologies self-assembled from fluorinated ABC triblock terpolymers: the effects of flexible and rigid hydrophobic moieties. Polym Chem 2016. [DOI: 10.1039/c5py02017d] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Two kinds of fluorinated ABC triblock terpolymers have been prepared by oxyanion-initiated polymerization, and the effects of flexible and rigid polyolefin moieties on their self-assembled multicompartment morphologies were investigated.
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Affiliation(s)
- Sen Li
- College of Chemistry
- Chemical Engineering and Materials Science
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
| | - Jinlin He
- College of Chemistry
- Chemical Engineering and Materials Science
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
| | - Mingzu Zhang
- College of Chemistry
- Chemical Engineering and Materials Science
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
| | - Hairong Wang
- College of Chemistry
- Chemical Engineering and Materials Science
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
| | - Peihong Ni
- College of Chemistry
- Chemical Engineering and Materials Science
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
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19
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Liu H, Guo Z, He S, Yin H, Feng Y. Synthesis and self-assembly of ABC linear triblock copolymers to target CO2-responsive multicompartment micelles. RSC Adv 2016. [DOI: 10.1039/c6ra18826e] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A series of ABC triblock copolymers were synthesized by tailoring the block length, suggesting polymers in a narrow composition window (0.34 ≤ fF ≤ 0.38) might transform from spherical micelles to multicompartment micelles upon stimulation of CO2.
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Affiliation(s)
- Hanbin Liu
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu 610041
- P. R. China
| | - Zanru Guo
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu 610041
- P. R. China
| | - Shuai He
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu 610041
- P. R. China
| | - Hongyao Yin
- Polymer Research Institute
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610065
- P. R. China
| | - Yujun Feng
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu 610041
- P. R. China
- Polymer Research Institute
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20
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Chen Y, Zhang K, Wang X, Zhang F, Zhu J, Mays JW, Wooley KL, Pochan DJ. Multigeometry Nanoparticles: Hybrid Vesicle/Cylinder Nanoparticles Constructed with Block Copolymer Solution Assembly and Kinetic Control. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b00752] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Yingchao Chen
- Department
of Material Science and Engineering, University of Delaware, Newark, Delaware 19716, United States
| | - Ke Zhang
- Department of Chemistry, Chemical Engineering, and Material Science & Engineering, Texas A&M University, College Station, Texas 77842, United States
- Department
of Chemistry and Chemical Biology, Northeastern University, Boston, Massachusetts 02115, United States
| | - Xiaojun Wang
- Department
of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Fuwu Zhang
- Department of Chemistry, Chemical Engineering, and Material Science & Engineering, Texas A&M University, College Station, Texas 77842, United States
| | - Jiahua Zhu
- Department
of Material Science and Engineering, University of Delaware, Newark, Delaware 19716, United States
| | - Jimmy W. Mays
- Department
of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Karen L. Wooley
- Department of Chemistry, Chemical Engineering, and Material Science & Engineering, Texas A&M University, College Station, Texas 77842, United States
| | - Darrin J. Pochan
- Department
of Material Science and Engineering, University of Delaware, Newark, Delaware 19716, United States
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21
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Suárez‐Suárez S, Carriedo GA, Soto AP. Tuning the Chirality of Block Copolymers: From Twisted Morphologies to Nanospheres by Self‐Assembly. Chemistry 2015; 21:14129-39. [DOI: 10.1002/chem.201501705] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2015] [Indexed: 11/09/2022]
Affiliation(s)
- Silvia Suárez‐Suárez
- Departmento de Química Orgánica e Inorgánica (IUQOEM), Universidad de Oviedo, Julián Clavería s/n, 33006, Oviedo (Spain), Fax: (+34) 985103446
| | - Gabino A. Carriedo
- Departmento de Química Orgánica e Inorgánica (IUQOEM), Universidad de Oviedo, Julián Clavería s/n, 33006, Oviedo (Spain), Fax: (+34) 985103446
| | - Alejandro Presa Soto
- Departmento de Química Orgánica e Inorgánica (IUQOEM), Universidad de Oviedo, Julián Clavería s/n, 33006, Oviedo (Spain), Fax: (+34) 985103446
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22
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Gröschel AH, Müller AHE. Self-assembly concepts for multicompartment nanostructures. NANOSCALE 2015; 7:11841-76. [PMID: 26123217 DOI: 10.1039/c5nr02448j] [Citation(s) in RCA: 236] [Impact Index Per Article: 26.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Compartmentalization is ubiquitous to many biological and artificial systems, be it for the separate storage of incompatible matter or to isolate transport processes. Advancements in the synthesis of sequential block copolymers offer a variety of tools to replicate natural design principles with tailor-made soft matter for the precise spatial separation of functionalities on multiple length scales. Here, we review recent trends in the self-assembly of amphiphilic block copolymers to multicompartment nanostructures (MCNs) under (semi-)dilute conditions, with special emphasis on ABC triblock terpolymers. The intrinsic immiscibility of connected blocks induces short-range repulsion into discrete nano-domains stabilized by a third, soluble block or molecular additive. Polymer blocks can be synthesized from an arsenal of functional monomers directing self-assembly through packing frustration or response to various fields. The mobility in solution further allows the manipulation of self-assembly processes into specific directions by clever choice of environmental conditions. This review focuses on practical concepts that direct self-assembly into predictable nanostructures, while narrowing particle dispersity with respect to size, shape and internal morphology. The growing understanding of underlying self-assembly mechanisms expands the number of experimental concepts providing the means to target and manipulate progressively complex superstructures.
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Affiliation(s)
- André H Gröschel
- Molecular Materials, Department of Applied Physics, Aalto University School of Science, FIN-00076 Aalto, Espoo, Finland.
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23
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Liu YY, Lan S, Xiao LQ. Synthesis and Characterization of PNIPAm Core Cross-Linked Star Polymers and Their Functionalization with Cyclodextrin. MACROMOL CHEM PHYS 2015. [DOI: 10.1002/macp.201400538] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yu-Yang Liu
- The Key Laboratory of Space Applied Physics and Chemistry; Ministry of Education and Key Laboratory of Macromolecular Science and Technology of Shaanxi Province; Department of Applied Chemistry; Northwestern Polytechnical University; Xi'an 710072 P.R. China
| | - Song Lan
- The Key Laboratory of Space Applied Physics and Chemistry; Ministry of Education and Key Laboratory of Macromolecular Science and Technology of Shaanxi Province; Department of Applied Chemistry; Northwestern Polytechnical University; Xi'an 710072 P.R. China
| | - Li-Qun Xiao
- The Key Laboratory of Space Applied Physics and Chemistry; Ministry of Education and Key Laboratory of Macromolecular Science and Technology of Shaanxi Province; Department of Applied Chemistry; Northwestern Polytechnical University; Xi'an 710072 P.R. China
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24
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Nekrasova TN, Pautov VD, Anan’eva TD, Imanbaev RT, Smyslov RY, Ten’kovtsev AV. Structural and dynamic characteristics of a star-shaped calixarene-containing polymer in aqueous solutions: the formation of mixed-shell micelles in the presence of poly(methacrylic acid). POLYMER SCIENCE SERIES A 2015. [DOI: 10.1134/s0965545x15010071] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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25
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Li C, Liu H, Tang D, Zhao Y. Synthesis, postmodification and fluorescence properties of reduction-cleavable core-couplable miktoarm stars with a branched core. Polym Chem 2015. [DOI: 10.1039/c4py01495b] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Postmodification of (PEG)m(PCL)n miktoarm stars with a dual-reactive branched core allowed the introduction of versatile functionalities, and the coumarin-functionalized star exhibited tunable fluorescence properties sensitive to solvent polarity and reduction stimulus.
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Affiliation(s)
- Cangxia Li
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
| | - Huanhuan Liu
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
| | - Dandan Tang
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
| | - Youliang Zhao
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
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26
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Zhou P, Liu YY, Niu LY, Zhu J. Self-assemblies of the six-armed star triblock ABC copolymer: pH-tunable morphologies and drug release. Polym Chem 2015. [DOI: 10.1039/c4py01804d] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A well-defined six-armed star triblock copolymer s-(PDEA62-b-PMMA195-b-PPEGMA47)6 was synthesized by the core-first ATRP method. The star triblock copolymer shows pH-tunable self-assembly behavior. Interestingly, the reversible vesicle–micelle transition could be achieved by simply adjusting the surrounding pH.
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Affiliation(s)
- Ping Zhou
- The Key Laboratory of Space Applied Physics and Chemistry
- Ministry of Education and Key Laboratory of Macromolecular Science and Technology of Shaanxi Province
- Department of Applied Chemistry
- Northwestern Polytechnical University
- Xi'an 710072
| | - Yu-Yang Liu
- The Key Laboratory of Space Applied Physics and Chemistry
- Ministry of Education and Key Laboratory of Macromolecular Science and Technology of Shaanxi Province
- Department of Applied Chemistry
- Northwestern Polytechnical University
- Xi'an 710072
| | - Lu-Ying Niu
- The Key Laboratory of Space Applied Physics and Chemistry
- Ministry of Education and Key Laboratory of Macromolecular Science and Technology of Shaanxi Province
- Department of Applied Chemistry
- Northwestern Polytechnical University
- Xi'an 710072
| | - Jie Zhu
- The Key Laboratory of Space Applied Physics and Chemistry
- Ministry of Education and Key Laboratory of Macromolecular Science and Technology of Shaanxi Province
- Department of Applied Chemistry
- Northwestern Polytechnical University
- Xi'an 710072
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27
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Ma J, Cui J, Han Y, Jiang W, Sun Y. Monte Carlo study of the micelles constructed by ABCA tetrablock copolymers and their formation in A-selective solvents. RSC Adv 2015. [DOI: 10.1039/c5ra11865d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Micelles with hamburger-type and Janus-type solvophobic parts, asymmetric vesicles with multicompartment outer surface formed by ABCA tetrablock copolymers in A-selective solvent.
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Affiliation(s)
- Jiani Ma
- Northeast Normal University
- School of Physics
- Changchun 130024
- P. R. China
- State Key Laboratory of Polymer Physics and Chemistry
| | - Jie Cui
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- P. R. China
| | - Yuanyuan Han
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- P. R. China
| | - Wei Jiang
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- P. R. China
| | - Yingchun Sun
- Northeast Normal University
- School of Physics
- Changchun 130024
- P. R. China
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28
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Dag A, Lu H, Stenzel M. Controlling the morphology of glyco-nanoparticles in water using block copolymer mixtures: the effect on cellular uptake. Polym Chem 2015. [DOI: 10.1039/c5py01360g] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Poly[(2-(α-d-mannosyloxy)ethyl acrylate)-block-(n-butyl acrylate)], P(ManA-b-BA), and poly[poly(ethylene glycol) methyl ether acrylate]-block-(n-butyl acrylate)], P(OEGMEA-b-BA) diblock copolymers were mixed at various ratios to generate self-assembled structures of different morphologies.
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Affiliation(s)
- Aydan Dag
- Centre for Advanced Macromolecular Design (CAMD)
- The University of New South Wales
- Sydney
- Australia
- Faculty of Pharmacy
| | - Hongxu Lu
- Centre for Advanced Macromolecular Design (CAMD)
- The University of New South Wales
- Sydney
- Australia
| | - Martina Stenzel
- Centre for Advanced Macromolecular Design (CAMD)
- The University of New South Wales
- Sydney
- Australia
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29
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Iatridi Z, Lencina MMS, Tsitsilianis C. PNIPAM-based heteroarm star-graft quarterpolymers: synthesis, characterization and pH-dependent thermoresponsiveness in aqueous media. Polym Chem 2015. [DOI: 10.1039/c5py00393h] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
We report the design of PSn(P2VP-b-PAA-g-PNIPAM)n heteroarm star-graft quarterpolymers, the thermoresponsiveness of which is strongly dependent on pH ionic strength, and their macromolecular features, e.g. arm number and grafting density.
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Affiliation(s)
- Zacharoula Iatridi
- Department of Chemical Engineering
- University of Patras
- 26504 Patras
- Greece
| | | | - Constantinos Tsitsilianis
- Department of Chemical Engineering
- University of Patras
- 26504 Patras
- Greece
- Institute of Chemical Engineering Sciences ICE/HT-FORTH
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30
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Nunns A, Whittell GR, Winnik MA, Manners I. Crystallization-Driven Solution Self-Assembly of μ-ABC Miktoarm Star Terpolymers with Core-Forming Polyferrocenylsilane Blocks. Macromolecules 2014. [DOI: 10.1021/ma501725h] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Adam Nunns
- School
of Chemistry, University of Bristol, Bristol BS8 1TS, U.K
| | | | - Mitchell A. Winnik
- Department
of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Ian Manners
- School
of Chemistry, University of Bristol, Bristol BS8 1TS, U.K
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31
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Fleischmann C, Wöhlk H, Ritter H. End group functionalization of poly(ethylene glycol) with phenolphthalein: towards star-shaped polymers based on supramolecular interactions. Beilstein J Org Chem 2014; 10:2263-9. [PMID: 25298793 PMCID: PMC4187025 DOI: 10.3762/bjoc.10.235] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2014] [Accepted: 09/10/2014] [Indexed: 11/23/2022] Open
Abstract
The synthesis of a new phenolphthalein azide derivative, which can be easily utilized in polymer analogous reactions, is presented. The subsequent cycloaddition reaction with propargyl-functionalized methoxypoly(ethylene glycol) yielded polymers bearing phenolphthalein as the covalently attached end group. In presence of per-β-cyclodextrin-dipentaerythritol, the formation of stable inclusion complexes was observed, representing an interesting approach towards the formation of star shaped polymers. The decolorization of a basic polymer solution caused by the complexation was of great advantage since this behavior enabled following the complex formation by UV-vis spectroscopy and even the naked eye.
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Affiliation(s)
- Carolin Fleischmann
- Institute of Organic Chemistry and Macromolecular Chemistry, Heinrich-Heine-University Düsseldorf, Universitätsstraße 1, D-40225 Düsseldorf, Germany
| | - Hendrik Wöhlk
- Institute of Organic Chemistry and Macromolecular Chemistry, Heinrich-Heine-University Düsseldorf, Universitätsstraße 1, D-40225 Düsseldorf, Germany
| | - Helmut Ritter
- Institute of Organic Chemistry and Macromolecular Chemistry, Heinrich-Heine-University Düsseldorf, Universitätsstraße 1, D-40225 Düsseldorf, Germany
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32
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Wei X, Moad G, Muir BW, Rizzardo E, Rosselgong J, Yang W, Thang SH. An Arm-First Approach to Cleavable Mikto-Arm Star Polymers by RAFT Polymerization. Macromol Rapid Commun 2014; 35:840-5. [DOI: 10.1002/marc.201300879] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2013] [Revised: 12/18/2013] [Indexed: 12/19/2022]
Affiliation(s)
- Xiaohu Wei
- State Key Laboratory of Chemical Resource Engineering, College of Materials Science and Engineering, Beijing University of Chemical Technology; Beijing 100029 China
- CSIRO Materials Science and Engineering, Bayview Avenue; Clayton Victoria 3168 Australia
| | - Graeme Moad
- CSIRO Materials Science and Engineering, Bayview Avenue; Clayton Victoria 3168 Australia
| | - Benjamin W. Muir
- CSIRO Materials Science and Engineering, Bayview Avenue; Clayton Victoria 3168 Australia
| | - Ezio Rizzardo
- CSIRO Materials Science and Engineering, Bayview Avenue; Clayton Victoria 3168 Australia
| | - Julien Rosselgong
- CSIRO Materials Science and Engineering, Bayview Avenue; Clayton Victoria 3168 Australia
| | - Wantai Yang
- State Key Laboratory of Chemical Resource Engineering, College of Materials Science and Engineering, Beijing University of Chemical Technology; Beijing 100029 China
| | - San H. Thang
- CSIRO Materials Science and Engineering, Bayview Avenue; Clayton Victoria 3168 Australia
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33
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Wang W, Zhang J, Li C, Huang P, Gao S, Han S, Dong A, Kong D. Facile access to cytocompatible multicompartment micelles with adjustable Janus-cores from A-block-B-graft-C terpolymers prepared by combination of ROP and ATRP. Colloids Surf B Biointerfaces 2013; 115:302-9. [PMID: 24389334 DOI: 10.1016/j.colsurfb.2013.12.026] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2013] [Revised: 12/08/2013] [Accepted: 12/10/2013] [Indexed: 11/28/2022]
Abstract
The architecture of hydrophobic segments can determine the specific morphology of multicompartment micelles (MCMs) that are generated from aqueous assembly of amphiphilic terpolymers. In this study, we aimed to design and generate poly(ɛ-caprolactone)-based multicompartment micelles with adjustable Janus-cores. Well-defined terpolymers with a novel A-block-B-graft-C architecture composed of biologically compatible polymers, methoxy poly(ethylene glycol) (PEG), poly(ɛ-caprolactone) (PCL) and poly(2-(perfluorobutyl)ethyl methacrylate) (PPFEMA), were prepared by the stepwise use of ring-opening polymerization and atom transfer radical polymerization. Characterization of the obtained terpolymers was carried out by (1)H NMR and gel permeation chromatography. Results from differential scanning calorimetry and X-ray diffraction studies indicated that within the terpolymer structure, the PCL segments are in the crystalline state, while fluorocarbon segments belong to the amorphous domains. Due to the thermodynamic incompatibility of PCL and PPFEMA, MCMs could be obtained upon aqueous self-assembly of the terpolymer. The well-segregated Janus-cores with adjustable compartment balance were revealed by transmission electron microscopy. In vitro cell viability assays further demonstrated an excellent cytocompatibility of the MCMs both in mouse embryonic fibroblasts (3T3) and human acute monocytic leukemia (THP-1) cells.
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Affiliation(s)
- Weiwei Wang
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Science, Tianjin 300192, China
| | - Ju Zhang
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Science, Tianjin 300192, China
| | - Chen Li
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Science, Tianjin 300192, China
| | - Pingsheng Huang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Shan Gao
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Science, Tianjin 300192, China
| | - Shangcong Han
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Anjie Dong
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
| | - Deling Kong
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Science, Tianjin 300192, China.
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34
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Zhu Z. Effects of amphiphilic diblock copolymer on drug nanoparticle formation and stability. Biomaterials 2013; 34:10238-48. [PMID: 24070569 PMCID: PMC3830127 DOI: 10.1016/j.biomaterials.2013.09.015] [Citation(s) in RCA: 90] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2013] [Accepted: 09/04/2013] [Indexed: 11/30/2022]
Abstract
This study systematically compares the effects of amphiphilic diblock copolymer (di-BCP) on stabilizing hydrophobic drug nanoparticles formed by flash nanoprecipitation (FNP), and provides a guideline on choosing suitable di-BCPs. Four widely used di-BCPs, i.e., polystyrene-block-poly(ethylene glycol) (PS-b-PEG), polycaprolactone-block-poly(ethylene glycol) (PCL-b-PEG), polylactide-block-poly(ethylene glycol) (PLA-b-PEG), and poly(lactic-co-glycolic acid) (PLGA-b-PEG), and β-carotene as a model drug were used. The study showed that PLGA-b-PEG was the most suitable one, whose hydrophobic block was biodegradable and noncrystallizable as well as had relatively high glass transition temperature (Tg) and a right solubility parameter (δ). The molecular weight of PLGA block over the range from 5k to 15k showed an insignificant effect on controlling the particle size. Amorphous drug particles with a high drug loading of over 83 wt% can be achieved. Much remarkable evidence supported the nanoparticles with kinetically frozen and non-equilibrium packing structures of polymer chains rather than either the micelles or micellar nanoparticles with two well segregated polymer blocks. The thermodynamic effects of the drug and BCP on the particle stability, size and structures were discussed by using solubility parameters.
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Affiliation(s)
- Zhengxi Zhu
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, MN 55455, USA.
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35
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Hierarchical self-assembly of miktoarm star polymers containing a polycationic segment: A general concept. POLYMER 2013. [DOI: 10.1016/j.polymer.2013.05.071] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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36
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Hanisch A, Gröschel AH, Förtsch M, Drechsler M, Jinnai H, Ruhland TM, Schacher FH, Müller AHE. Counterion-mediated hierarchical self-assembly of an ABC miktoarm star terpolymer. ACS NANO 2013; 7:4030-4041. [PMID: 23544750 DOI: 10.1021/nn400031u] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Directed self-assembly processes of polymeric systems represent a powerful approach for the generation of structural hierarchy in analogy to biological systems. Herein, we utilize triiodide as a strongly polarizable counterion to induce hierarchical self-assembly of an ABC miktoarm star terpolymer comprising a polybutadiene (PB), a poly(tert-butyl methacrylate) (PtBMA), and a poly(N-methyl-2-vinylpyridinium) (P2VPq) segment. Hereby, the miktoarm architecture in conjunction with an increasing ratio of triiodide versus iodide counterions allows for a stepwise assembly of spherical micelles as initial building blocks into cylindrical structures and superstructures thereof. Finally, micrometer-sized multicompartment particles with a periodic lamellar fine structure are observed, for which we introduce the term "woodlouse". The counterion-mediated decrease in hydrophilicity of the corona-forming P2VPq block is the underlying trigger to induce this hierarchical structure formation. All individual steps and the corresponding intermediates toward these well-defined superstructures were intensively studied by scattering and electron microscopic techniques, including transmission electron microtomography.
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Affiliation(s)
- Andreas Hanisch
- Makromolekulare Chemie II, Universität Bayreuth, D-95440 Bayreuth, Germany
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37
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Tian Y, Glogowska A, Zhong W, Klonisch T, Xing M. Polymeric mesoporous silica nanoparticles as a pH-responsive switch to control doxorubicin intracellular delivery. J Mater Chem B 2013; 1:5264-5272. [DOI: 10.1039/c3tb20544d] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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38
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Moughton AO, Sagawa T, Gramlich WM, Seo M, Lodge TP, Hillmyer MA. Synthesis of block polymer miktobrushes. Polym Chem 2013. [DOI: 10.1039/c2py20656k] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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39
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Babinot J, Renard E, Le Droumaguet B, Guigner JM, Mura S, Nicolas J, Couvreur P, Langlois V. Facile Synthesis of Multicompartment Micelles Based on Biocompatible Poly(3-hydroxyalkanoate). Macromol Rapid Commun 2012; 34:362-8. [DOI: 10.1002/marc.201200692] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2012] [Revised: 11/20/2012] [Indexed: 11/12/2022]
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40
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Newcomb CJ, Moyer TJ, Lee SS, Stupp SI. Advances in cryogenic transmission electron microscopy for the characterization of dynamic self-assembling nanostructures. Curr Opin Colloid Interface Sci 2012. [PMID: 23204913 DOI: 10.1016/j.cocis.2012.09.004] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Elucidating the structural information of nanoscale materials in their solvent-exposed state is crucial, as a result, cryogenic transmission electron microscopy (cryo-TEM) has become an increasingly popular technique in the materials science, chemistry, and biology communities. Cryo-TEM provides a method to directly visualize the specimen structure in a solution-state through a thin film of vitrified solvent. This technique complements X-ray, neutron, and light scattering methods that probe the statistical average of all species present; furthermore, cryo-TEM can be used to observe changes in structure over time. In the area of self-assembly, this tool has been particularly powerful for the characterization of natural and synthetic small molecule assemblies, as well as hybrid organic-inorganic composites. In this review, we discuss recent advances in cryogenic TEM in the context of self-assembling systems with emphasis on characterization of transitions observed in response to external stimuli.
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Affiliation(s)
- Christina J Newcomb
- Department of Materials Science and Engineering Northwestern University, Evanston, IL, USA
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41
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Hanisch A, Schmalz H, Müller AHE. A Modular Route for the Synthesis of ABC Miktoarm Star Terpolymers via a New Alkyne-Substituted Diphenylethylene Derivative. Macromolecules 2012. [DOI: 10.1021/ma3017579] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Andreas Hanisch
- Makromolekulare Chemie
II, Universität Bayreuth, 95440 Bayreuth, Germany
| | - Holger Schmalz
- Makromolekulare Chemie
II, Universität Bayreuth, 95440 Bayreuth, Germany
| | - Axel H. E. Müller
- Makromolekulare Chemie
II, Universität Bayreuth, 95440 Bayreuth, Germany
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42
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Kong W, Jiang W, Zhu Y, Li B. Highly symmetric patchy multicompartment nanoparticles from the self-assembly of ABC linear terpolymers in C-selective solvents. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:11714-11724. [PMID: 22804956 DOI: 10.1021/la3014943] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Multicompartment micelles, especially those with highly symmetric surfaces such as patchy-like, patchy, and Janus micelles, have tremendous potential as building blocks of hierarchical multifunctional nanomaterials. One of the most versatile and powerful methods to obtain patchy multicompartment micelles is by the solution-state self-assembly of linear triblock copolymers. In this article, we applied the simulated annealing method to study the self-assembly of ABC linear terpolymers in C-selective solvents. Simulations predict a variety of patchy and patchy-like multicompartment micelles with high symmetry and also yield a detailed phase diagram to reveal how to control the patchy multicompartment micelle morphologies precisely. The phase diagram demonstrates that the internal segregated micellar structure depends on the ratio between the volume fractions of the two solvophobic blocks and their incompatibility, whereas the overall micellar shape depends on the copolymer concentration. The relationship between the interfacial energy, stretching energy of chains and the micellar morphology, micellar morphological transition are elucidated by computing the average contact number among the species, the mean square end-to-end distances of the whole terpolymers, the AB blocks in the terpolymers, the AB diblock copolymers, and angle distribution of terpolymers. The anchoring effect of the solvophilic C block on micellar structures is also examined by comparing the morphologies formed from ABC terpolymers and AB diblock copolymers.
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Affiliation(s)
- Weixin Kong
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
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43
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Huan X, Wang D, Dong R, Tu C, Zhu B, Yan D, Zhu X. Supramolecular ABC Miktoarm Star Terpolymer Based on Host–Guest Inclusion Complexation. Macromolecules 2012. [DOI: 10.1021/ma300693h] [Citation(s) in RCA: 93] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Xiuying Huan
- School of Chemistry and Chemical
Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road,
Shanghai 200240, People’s Republic of China
| | - Dali Wang
- School of Chemistry and Chemical
Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road,
Shanghai 200240, People’s Republic of China
| | - Ruijiao Dong
- School of Chemistry and Chemical
Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road,
Shanghai 200240, People’s Republic of China
| | - Chunlai Tu
- School of Chemistry and Chemical
Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road,
Shanghai 200240, People’s Republic of China
| | - Bangshang Zhu
- Instrumental Analysis Center, Shanghai Jiao Tong University, 800 Dongchuan Road,
Shanghai 200240, People’s Republic of China
| | - Deyue Yan
- School of Chemistry and Chemical
Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road,
Shanghai 200240, People’s Republic of China
| | - Xinyuan Zhu
- School of Chemistry and Chemical
Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road,
Shanghai 200240, People’s Republic of China
- Instrumental Analysis Center, Shanghai Jiao Tong University, 800 Dongchuan Road,
Shanghai 200240, People’s Republic of China
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44
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Schacher FH, Rupar PA, Manners I. Funktionale Blockcopolymere: nanostrukturierte Materialien mit neuen Anwendungsmöglichkeiten. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201200310] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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45
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Schacher FH, Rupar PA, Manners I. Functional Block Copolymers: Nanostructured Materials with Emerging Applications. Angew Chem Int Ed Engl 2012; 51:7898-921. [DOI: 10.1002/anie.201200310] [Citation(s) in RCA: 564] [Impact Index Per Article: 47.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2012] [Indexed: 01/07/2023]
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46
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Feng K, Xie N, Chen B, Zhang LP, Tung CH, Wu LZ. Reversible Light-Triggered Transition of Amphiphilic Random Copolymers. Macromolecules 2012. [DOI: 10.1021/ma300734z] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Ke Feng
- Key Laboratory of Photochemical Conversion
and Optoelectronic Materials, Technical Institute of Physics and Chemistry,
the Chinese Academy of Sciences, Beijing
100190, P. R. China
| | - Nan Xie
- School
of Chemical Biology and Pharmaceutical Sciences, Capital Medical University, Beijing 100069, P. R. China
| | - Bin Chen
- Key Laboratory of Photochemical Conversion
and Optoelectronic Materials, Technical Institute of Physics and Chemistry,
the Chinese Academy of Sciences, Beijing
100190, P. R. China
| | - Li-Ping Zhang
- Key Laboratory of Photochemical Conversion
and Optoelectronic Materials, Technical Institute of Physics and Chemistry,
the Chinese Academy of Sciences, Beijing
100190, P. R. China
| | - Chen-Ho Tung
- Key Laboratory of Photochemical Conversion
and Optoelectronic Materials, Technical Institute of Physics and Chemistry,
the Chinese Academy of Sciences, Beijing
100190, P. R. China
| | - Li-Zhu Wu
- Key Laboratory of Photochemical Conversion
and Optoelectronic Materials, Technical Institute of Physics and Chemistry,
the Chinese Academy of Sciences, Beijing
100190, P. R. China
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47
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Uesaka A, Ueda M, Makino A, Imai T, Sugiyama J, Kimura S. Self-assemblies of triskelion A2B-type amphiphilic polypeptide showing pH-responsive morphology transformation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:6006-6012. [PMID: 22440231 DOI: 10.1021/la3004867] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
A pH-responsive rolled-sheet morphology was prepared from a triskelion A(2)B-type amphiphilic polypeptide having a histidine residue as a pH-responsive unit. The dimensions of the rolled sheet were 85 nm diameter and 210 nm length with a sheet turn number of 2.0 at pH 7.4. Upon decreasing the pH from 7.4 to 5.0, the layer spacing of the rolled sheets was widened from ca. 9 to ca. 19 nm due to electrostatic repulsion caused by histidine protonation. This morphology change occurred reversibly with a pH change between 7.4 and 5.0. The molecular packing in the rolled sheets was shown to be loosened at pH 5.0 on the basis of electron diffraction measurements. The tightness of the rolled sheets was thus controlled reversibly by a pH change due to a single protonation in the amphiphilic polypeptide.
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Affiliation(s)
- Akihiro Uesaka
- Department of Material of Chemistry, Graduate School of Engineering, Kyoto University, Kyoto-Daigaku-Katsura, Kyoto 615-8510, Japan
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48
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Gregory A, Stenzel MH. Complex polymer architectures via RAFT polymerization: From fundamental process to extending the scope using click chemistry and nature's building blocks. Prog Polym Sci 2012. [DOI: 10.1016/j.progpolymsci.2011.08.004] [Citation(s) in RCA: 377] [Impact Index Per Article: 31.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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49
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Mu CG, Fan XD, Tian W, Bai Y, Zhou X. Miktoarm star polymers with poly(N-isopropylacrylamide) or poly(oligo(ethylene glycol) methacrylate) as building blocks: synthesis and comparison of thermally-responsive behaviors. Polym Chem 2012. [DOI: 10.1039/c2py20029e] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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50
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Affiliation(s)
- Adam O. Moughton
- Department of Chemistry and ‡Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455-0431, United States
| | - Marc A. Hillmyer
- Department of Chemistry and ‡Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455-0431, United States
| | - Timothy P. Lodge
- Department of Chemistry and ‡Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455-0431, United States
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