1
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Ma Z, Liu G, Hu N, Chen L, Wei J. pH-induced morphological transition of aggregates formed by miktoarm star polymers in dilute solution: a mesoscopic simulation study. RSC Adv 2024; 14:24240-24249. [PMID: 39101066 PMCID: PMC11295911 DOI: 10.1039/d4ra04511d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2024] [Accepted: 07/29/2024] [Indexed: 08/06/2024] Open
Abstract
The self-assembly of miktoarm star polymers μ-A i (B(D)) j C k in a neutral solution and the pH-responsive behaviors of vesicles and spherical micelles in an acidic solution have been investigated by DPD simulation. The results show that the self-assembled morphologies can be regulated by the lengths of pH-responsive arm B and hydrophilic arm C, leading to the formation of vesicles, discoidal micelles, and spherical micelles in a neutral solution. The dynamic evolution pathways of vesicles and spherical micelles are categorized into three stages: nucleation, coalescence, and growth. Subsequently, the pH-responsive behaviors of vesicles and spherical micelles have been explored by tuning the protonation degree of pH-responsive arm B. The vesicles evolves from nanodisks to nanosheets, then to nanoribbons, as the protonation degree increases, corresponding to a decrease in pH value, while the spherical micelles undergoes a transition into worm-like micelles, nanosheets, and nanoribbons. Notably, the electrostatic interaction leads the counterions to form a regular hexagonal pattern in nanosheets, while an alternative distribution of charged beads has been observed in nanoribbons. Furthermore, the role of the electrostatic interaction in the morphological transition has been elucidated through the analysis of the distribution of positive and negative charges, as well as the electrostatic potential for associates.
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Affiliation(s)
- Zengwei Ma
- College of Science, Chongqing University of Technology Chongqing 400054 China
| | - Gaiqin Liu
- College of Science, Chongqing University of Technology Chongqing 400054 China
| | - Nan Hu
- College of Science, Chongqing University of Technology Chongqing 400054 China
| | - Lin Chen
- College of Science, Chongqing University of Technology Chongqing 400054 China
| | - Jianwei Wei
- College of Science, Chongqing University of Technology Chongqing 400054 China
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2
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Ma L, Duan R, Cao G, Bahetihan H, Kong W. Core-shell particle formation via Co-assembly of AB diblock copolymers and nanoparticles in 3D soft confinement. RSC Adv 2024; 14:22449-22458. [PMID: 39010905 PMCID: PMC11248566 DOI: 10.1039/d4ra02223h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2024] [Accepted: 07/07/2024] [Indexed: 07/17/2024] Open
Abstract
Core-shell particle formation via co-assembly of AB diblock copolymers and nanoparticles in 3D soft confinement was studied using a simulated annealing method. Several sequences of soft confinement-induced core-shell particles were predicted as functions of the volume fraction of the nanoparticle to core-shell particles, the incompatibility between blocks, the volume fractions of A-blocks, the chain length of AB diblocks, the eccentricity of the nanoparticle, and the initial concentration of copolymers. Simulation results demonstrate that those factors are able to tune the morphology of the core-shell particles precisely. Calculated data indicate that the copolymer chain was located between a hard confinement wall composed of the nanoparticle and a soft confinement wall composed of solvents, and the arrangement direction of the copolymer chains was in a competitive equilibrium between the two. We anticipate that this work will be helpful and instructive for the preparation of polymer shells with different structures and shapes, as well as the study of self-assembly morphology of copolymers in a complex confinement systems.
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Affiliation(s)
- Liangjun Ma
- Department of Physics, University of Xinjiang Urumqi CN China
| | - Runyu Duan
- Department of Physics, University of Xinjiang Urumqi CN China
| | - Ganghui Cao
- Department of Physics, University of Xinjiang Urumqi CN China
| | | | - Weixin Kong
- Department of Physics, University of Xinjiang Urumqi CN China
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3
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Ma L, Bahetihan H, Kong W. Shell with Striped, Helical, and Bipolar Lamellae Structures from Soft Confinement-Induced Self-Assembly of AB Diblock Copolymers on a Nanocylinder. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:13699-13708. [PMID: 38952281 DOI: 10.1021/acs.langmuir.4c01493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/03/2024]
Abstract
The soft confinement-induced self-assembly of AB diblock copolymers on a nanocylinder is studied via a simulated annealing method. The formation of multiple copolymer shells was predicted by varying the interfacial interaction, the size of confinement, and the height and diameter of the nanocylinder. The competition between solvent repulsion and nanocylinder attraction determined the degree of encapsulation of the copolymer shell. The formation of a helical copolymer shell was induced by the maximization of conformational entropy. The preferential distribution position of copolymers on anisotropic nanocylinder surfaces was induced by interfacial energy minimization. Our study contributes to the understanding of the formation mechanism of the helical structure in block copolymer aggregates and the fabrication of copolymer shells with predesigned morphologies.
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Affiliation(s)
- Liangjun Ma
- Department of Physics, University of Xinjiang, Urumqi 830046, China
| | | | - Weixin Kong
- Department of Physics, University of Xinjiang, Urumqi 830046, China
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4
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Bahetihan H, Ma L, Kong W. The mechanism underlying the transitions between stripes, helices, and stacked toroids in the cylindrical shell formed by AB diblock copolymers on a long nanocylinder. Phys Chem Chem Phys 2024; 26:13480-13488. [PMID: 38651195 DOI: 10.1039/d4cp00371c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
The self-assembly of block copolymers on nanocylinders has attracted a lot of interest due to its potential application in biomedicine and other fields. In this study, the self-assembly phase behavior of AB diblock copolymers on long nanocylinders in soft confinement has been studied by using a simulated annealing method. A square phase diagram of the morphology was constructed by increasing the number of chains of copolymers (cn) and the cylindrical diameter (D). As a result, morphological transitions from striped to helical and axially stacked toroids, as well as reversible transitions, started to appear. By analyzing the chain packing in a fan-shaped region and calculating the mean-square end-to-end distance (DEE2) of the copolymers and number of AB contacts, both types of transitions were found to be driven by the competition between conformational entropy and AB interfacial energy. The number of stripes increased and the helical angle decreased with the increase in cylinder diameter. The chirality of the helix was found to be random.
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Affiliation(s)
- Hajinuer Bahetihan
- School of Physics Science and Technology, Xinjiang University, Urumqi, Xinjiang 830046, China.
| | - Liangjun Ma
- School of Physics Science and Technology, Xinjiang University, Urumqi, Xinjiang 830046, China.
| | - Weixin Kong
- School of Physics Science and Technology, Xinjiang University, Urumqi, Xinjiang 830046, China.
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5
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Modeling the Phase Equilibria of Associating Polymers in Porous Media with Respect to Chromatographic Applications. Polymers (Basel) 2022; 14:polym14153182. [PMID: 35956697 PMCID: PMC9370872 DOI: 10.3390/polym14153182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 07/31/2022] [Accepted: 07/31/2022] [Indexed: 11/28/2022] Open
Abstract
Associating copolymers self-assemble during their passage through a liquid chromatography (LC) column, and the elution differs from that of common non-associating polymers. This computational study aims at elucidating the mechanism of their unique and intricate chromatographic behavior. We focused on amphiphilic diblock copolymers in selective solvents, performed the Monte Carlo (MC) simulations of their partitioning between a bulk solvent (mobile phase) and a cylindrical pore (stationary phase), and investigated the concentration dependences of the partition coefficient and of other functions describing the phase behavior. The observed abruptly changing concentration dependences of the effective partition coefficient demonstrate the significant impact of the association of copolymers with their partitioning between the two phases. The performed simulations reveal the intricate interplay of the entropy-driven and the enthalpy-driven processes, elucidate at the molecular level how the self-assembly affects the chromatographic behavior, and provide useful hints for the analysis of experimental elution curves of associating polymers.
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6
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Li B, Wang YL. Self-Assembly of Miktoarm Star Polyelectrolytes in Solutions with Various Ionic Strengths. ACS OMEGA 2022; 7:20791-20799. [PMID: 35755333 PMCID: PMC9219065 DOI: 10.1021/acsomega.2c01317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 05/30/2022] [Indexed: 06/15/2023]
Abstract
We studied the self-assembly of miktoarm star polyelectrolytes with different numbers of arms in solutions with various ionic strengths using coarse-grained molecular dynamic simulations. Spherical micelles are obtained for star polyelectrolytes with fewer arms, whereas wormlike clusters are obtained for star polyelectrolytes with more arms at a low ionic strength environment, with hydrophilic arms showing a stretched conformation. The number of clusters shows an overall decreasing tendency with increasing the number of arms in star polyelectrolytes due to strong electrostatic coupling between polycations and polyanions. The formation of wormlike clusters follows an overall stepwise pathway with an intermittent association-dissociation process for star polyelectrolytes with weak electrostatic coupling. These computational results can provide relevant physical insights to understand the self-assembly mechanism of star polyelectrolytes in solvents with various ionic strengths and to design star polyelectrolytes with functional groups that can fine-tune self-assembled structures for specific applications.
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Affiliation(s)
- Bin Li
- School
of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, China
| | - Yong-Lei Wang
- Department
of Materials and Environmental Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
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7
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Ding M, Hou L, Duan X, Shi T, Li W, Shi AC. Translocation of Micelles through a Nanochannel. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c00447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mingming Ding
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, P. R. China
| | - Lei Hou
- State Key Laboratory of Molecular Engineering of Polymers, Key Laboratory of Computational Physical Sciences, Department of Macromolecular Science, Fudan University, Shanghai 200433, P. R. China
| | - Xiaozheng Duan
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
| | - Tongfei Shi
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, P. R. China
| | - Weihua Li
- State Key Laboratory of Molecular Engineering of Polymers, Key Laboratory of Computational Physical Sciences, Department of Macromolecular Science, Fudan University, Shanghai 200433, P. R. China
| | - An-Chang Shi
- Department of Physics and Astronomy, McMaster University, Hamilton, Ontario L8S 4M1, Canada
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8
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Rodichkin ID, Gumerov RA, Potemkin II. Self-assembly of miktoarm palm tree-like star copolymers in a selective solvent. J Colloid Interface Sci 2022; 606:1966-1973. [PMID: 34749445 DOI: 10.1016/j.jcis.2021.09.196] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 06/29/2021] [Accepted: 09/30/2021] [Indexed: 11/25/2022]
Abstract
Amphiphilic miktoarm star copolymers with one long solvophobic arm (a "stem") and several short solvophilic arms (the "leaves") were studied in a selective solvent using mesoscopic computer simulations. The conventional morphologies (spherical, cylindrical and vesicular) as well as the mixed ones were obtained. However, the resulting diagram of states appeared to be different from the diagram of the linear diblock copolymer with the analogous composition. Namely, the increase of the number of leaves at fixed solvophobic-solvophilic ratio leads to the transition from the vesicles to the cylinders, while the latter ones eventually transform into spherical micelles in the case of highly branched copolymers. The observed effect appears due to the increase of the interfacial area between the collapsed and swollen blocks per single macromolecule. In turn, the increase of the solvent selectivity shifts the stability region of the cylindrical micelles to the region of more symmetric copolymer composition. Meanwhile, the compatibility between the blocks has a weak effect on the resulting morphology. Finally, it was found that the increase in the number of leaves and the simultaneous decrease in their length results in the localization of higher amount of solvophilic segments near the core-solvent interface, which in the case of cylindrical micelles significantly affects the shape of the aggregates making them thinner and longer.
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Affiliation(s)
- Ivan D Rodichkin
- Physics Department, Lomonosov Moscow State University, Leninskie Gory 1-2, Moscow 119991, Russian Federation
| | - Rustam A Gumerov
- Physics Department, Lomonosov Moscow State University, Leninskie Gory 1-2, Moscow 119991, Russian Federation; DWI - Leibniz Institute for Interactive Materials e.V., Forckenbeckstraße 50, Aachen 52056, Germany
| | - Igor I Potemkin
- Physics Department, Lomonosov Moscow State University, Leninskie Gory 1-2, Moscow 119991, Russian Federation; DWI - Leibniz Institute for Interactive Materials e.V., Forckenbeckstraße 50, Aachen 52056, Germany; National Research South Ural State University, Chelyabinsk 454080, Russian Federation.
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9
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Liu Z, Wang Z, Yin Y, Jiang R, Li B. A simulation study of the self-assembly of ABC star terpolymers confined between two parallel surfaces. SOFT MATTER 2021; 17:5336-5348. [PMID: 33950058 DOI: 10.1039/d1sm00271f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The phase behavior of ABC star terpolymers confined between two identical parallel surfaces is systematically studied using a simulated annealing method. Several phase diagrams are constructed for systems with different bulk phases or with different interfacial interaction strength ratios in the space of surface distance (D) and surface preference for different arms, or in the space of D and the arm-length ratio x. Phases, including tiling patterns [6.6.6], [8.8.4], [8.6.6; 8.6.4], [8.6.6; 8.6.4; 10.6.6; 10.6.4] and hierarchical lamellar structures of lamella + cylinders and lamella + rods, are identified both in the bulk and in the films. Our results suggest that the self-assembled structure of a phase is largely controlled by x, while an increase of the interfacial interaction strength ratio shifts the x-window for each phase to the smaller x side. The orientation of a confined phase depends on the "effective surface preference" which is a combined effect of the interfacial interaction strength ratio, the surface preference, and the entropic preference. In the case of neutral or weak "effective surface preference", phases with a perpendicular orientation are usually observed, while in the case of strong "effective surface preference" phases with a perpendicular orientation or also with outermost wetting-layers can be frequently observed under some circumstances.
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Affiliation(s)
- Zhiyao Liu
- School of Physics, Key Laboratory of Functional Polymer Materials of Ministry of Education, Nankai University, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300071, China.
| | - Zheng Wang
- School of Physics, Key Laboratory of Functional Polymer Materials of Ministry of Education, Nankai University, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300071, China.
| | - Yuhua Yin
- School of Physics, Key Laboratory of Functional Polymer Materials of Ministry of Education, Nankai University, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300071, China.
| | - Run Jiang
- School of Physics, Key Laboratory of Functional Polymer Materials of Ministry of Education, Nankai University, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300071, China.
| | - Baohui Li
- School of Physics, Key Laboratory of Functional Polymer Materials of Ministry of Education, Nankai University, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300071, China.
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10
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Hu X, Wang Z, Yin Y, Jiang R, Li B. Controlling the chirality and number of strands of helices self-assembled from achiral block copolymers confined inside a nanopore: a simulation study. SOFT MATTER 2021; 17:4434-4444. [PMID: 33908596 DOI: 10.1039/d1sm00103e] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Achiral block copolymers can self-assemble into helical structures when confined inside a cylindrical nanopore. However, controlling the chirality and the number of strands of helices is challenging. We present our simulation results of the influence of a chiral patch added to the confining nanopore on the structures and chirality of helices self-assembled from achiral cylinder-forming diblock copolymers under the confinement. Our results indicate that, when the designed patch is of proper geometry, it can induce the formation of helical structures and exhibit good control over their chirality. The bottom surface of the patch can induce the formation of a characteristic local structure near and parallel to it. It is the characteristic local structure that directs the formation of helices and of their chirality consistent with that of the patch. A large patch angle or the top/bottom surface of a weakly selective pore promotes the formation of double-helices compared to single-helices by enlarging the pitch of the helices near the patch or through the entropic attraction of the top surface of the pore to the minority blocks.
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Affiliation(s)
- Xiejun Hu
- 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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11
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Ding P, Yin X, Wang Q, Kang X, Wu M, Zhu K, Wang X, Wang R, Xue G. Open and Closed Layered Nanostructures with Sub-10 nm Periodicity Self-Assembled from Hydrophilic [60]Fullerene-Based Giant Surfactants. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:7289-7295. [PMID: 32513008 DOI: 10.1021/acs.langmuir.0c00659] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Giant surfactants have been identified as good candidates to produce sub-10 nm elaborate nanostructures, which could potentially realize complex functions in nanofabrication fields. Our theoretical simulation demonstrates the formation of open layered (pupa-like micelles) and closed layered (onion-like micelles) nanostructures, self-assembled from giant surfactants with comparably sized hydrophilic heads tethered by oligomers in solution. Directed by these simulation results, we synthesized giant surfactants consisting of hydrophilic [60]fullerene heads and oligostyrene (OS7) tails and produced the predicted nanostructures with periods of 9.5, 8.3, and 7.5 nm, experimentally. Adjusting the polarity of the solvent and corresponding concentration changed the nanostructures from onion-like micelles with closed layers to pupa-like micelles with open layers. The different morphologies and periods were caused by solvent inclusion and the overlap of OS chains. The above layered nanostructures remained stable after annealing at 120 °C. This work provides insights that computer simulation can play an important role in assisting the design and construction of complicated nanostructures in giant surfactant systems.
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Affiliation(s)
- Peitao Ding
- Key Laboratory of High Performance Polymer Materials and Technology of Ministry of Education, Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing National Laboratory of Nanostructures, Nanjing University, Nanjing 210023, P. R. China
| | - Xiangfei Yin
- Key Laboratory of High Performance Polymer Materials and Technology of Ministry of Education, Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing National Laboratory of Nanostructures, Nanjing University, Nanjing 210023, P. R. China
| | - Qiyuan Wang
- Key Laboratory of High Performance Polymer Materials and Technology of Ministry of Education, Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing National Laboratory of Nanostructures, Nanjing University, Nanjing 210023, P. R. China
| | - Xiyang Kang
- Key Laboratory of High Performance Polymer Materials and Technology of Ministry of Education, Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing National Laboratory of Nanostructures, Nanjing University, Nanjing 210023, P. R. China
| | - Mei Wu
- Key Laboratory of High Performance Polymer Materials and Technology of Ministry of Education, Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing National Laboratory of Nanostructures, Nanjing University, Nanjing 210023, P. R. China
| | - Ke Zhu
- Key Laboratory of High Performance Polymer Materials and Technology of Ministry of Education, Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing National Laboratory of Nanostructures, Nanjing University, Nanjing 210023, P. R. China
| | - Xiaoliang Wang
- Key Laboratory of High Performance Polymer Materials and Technology of Ministry of Education, Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing National Laboratory of Nanostructures, Nanjing University, Nanjing 210023, P. R. China
| | - Rong Wang
- Key Laboratory of High Performance Polymer Materials and Technology of Ministry of Education, Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing National Laboratory of Nanostructures, Nanjing University, Nanjing 210023, P. R. China
| | - Gi Xue
- Key Laboratory of High Performance Polymer Materials and Technology of Ministry of Education, Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing National Laboratory of Nanostructures, Nanjing University, Nanjing 210023, P. R. China
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12
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Jiao W, Yang H, Wu Z, Liu J, Zhang W. Self-assembled block polymer aggregates in selective solution: controllable morphology transitions and their applications in drug delivery. Expert Opin Drug Deliv 2020; 17:947-961. [DOI: 10.1080/17425247.2020.1767582] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Weiqi Jiao
- Department of Pharmaceutics, China Pharmaceutical University, Nanjing, PR China
- Department of Biochemistry and Biology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, US
| | - Hu Yang
- Department of Chemical and Life Science Engineering, Virginia Commonwealth University, Richmond, VA, United States
| | - Zimei Wu
- School of Pharmacy, University of Auckland, Auckland, New Zealand
| | - Jianping Liu
- Department of Pharmaceutics, China Pharmaceutical University, Nanjing, PR China
| | - Wenli Zhang
- Department of Pharmaceutics, China Pharmaceutical University, Nanjing, PR China
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13
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Song Y, Jiang R, Wang Z, Yin Y, Li B, Shi AC. Formation and Regulation of Multicompartment Vesicles from Cyclic Diblock Copolymer Solutions: A Simulation Study. ACS OMEGA 2020; 5:9366-9376. [PMID: 32363288 PMCID: PMC7191859 DOI: 10.1021/acsomega.0c00374] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Accepted: 04/07/2020] [Indexed: 06/11/2023]
Abstract
The self-assembly of a cyclic AB copolymer system with relatively long A blocks and short B blocks in B-selective solvents is investigated using a simulated annealing method. By investigating the effect of the lengths and solubilities of A and B blocks (N A and N B, εAS and εBS), the incompatibility between A and B blocks (εAB), as well as the polymer concentration (C p) and the conditions for the formation of multicompartment vesicles in cyclic diblock copolymer solutions, is predicted. The phase diagrams in terms of N B, εAS, and C p are constructed. The mechanism of the morphological transition is elucidated. It is shown that for cyclic copolymers the change in the above factors relating to the polymer and solvent properties all can lead to the transition from simple vesicles to multicompartment vesicles, but two different transition mechanisms are revealed. In addition, our simulations demonstrate that the self-assembly of cyclic copolymers could provide a powerful strategy for regulating the compartment number and the wall thickness of the multicompartment vesicles by adjusting the block solubilities and block lengths, respectively. These findings will facilitate the application of multicompartment architectures in cell mimicry, drug delivery, and nanoreactors.
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Affiliation(s)
- Yongbing Song
- School
of Physics, Nankai University, Tianjin 300071, China
| | - Run Jiang
- School
of Physics, Nankai University, Tianjin 300071, China
| | - Zheng Wang
- School
of Physics, Nankai University, Tianjin 300071, China
| | - Yuhua Yin
- School
of Physics, Nankai University, Tianjin 300071, China
| | - Baohui Li
- School
of Physics, Nankai University, Tianjin 300071, China
| | - An-Chang Shi
- Department
of Physics and Astronomy, McMaster University, Hamilton, Ontario L8S 4M1, Canada
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14
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Xiao J, He Q, Qiu S, Li H, Wang B, Zhang B, Bu W. Amphiphilic miktoarm star copolymers can self-assemble into micelle-like aggregates in nonselective solvents: a case study of polyoxometalate based miktoarm stars. Sci China Chem 2020. [DOI: 10.1007/s11426-019-9709-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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15
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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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16
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Zhang Q, Qiang Y, Duan C, Li W. Single Helix Self-Assembled by Frustrated ABC 2 Branched Terpolymers. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b00110] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Qi Zhang
- State Key Laboratory of Molecular Engineering of Polymers, Collaborative Innovation Center of Polymers and Polymer Composite Materials, Department of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Yicheng Qiang
- State Key Laboratory of Molecular Engineering of Polymers, Collaborative Innovation Center of Polymers and Polymer Composite Materials, Department of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Chao Duan
- State Key Laboratory of Molecular Engineering of Polymers, Collaborative Innovation Center of Polymers and Polymer Composite Materials, Department of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Weihua Li
- State Key Laboratory of Molecular Engineering of Polymers, Collaborative Innovation Center of Polymers and Polymer Composite Materials, Department of Macromolecular Science, Fudan University, Shanghai 200433, China
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17
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Shan Y, Wang X, Ji Y, He L, Li S. Self-assembly of phospholipid molecules in solutions under shear flows: Microstructures and phase diagrams. J Chem Phys 2019; 149:244901. [PMID: 30599738 DOI: 10.1063/1.5056229] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Shear-induced microstructures and their phase diagrams were investigated for phospholipid molecules in aqueous solution by dissipative particle dynamic simulation. Self-assembled microstructures, including spherical and cylindrical micelles, spherical vesicles, lamellae, undulated lamellae, perforated lamellae, and continuous networks, were observed under various shear flows and phospholipid concentrations, where the spatial inhomogeneity and symmetry were analysed. A series of phase diagrams were constructed based on the chain lengths under various phospholipid concentrations. The phase distributions showed that the structures with spherical symmetry could be shear-induced to structures with cylindrical symmetry in the dilute solutions. In the semi-concentrated solutions, the lamellae were located in most spaces under zero shear flows, which could be shear-induced into undulated lamellae and then into cylindrical micelles. For the concentrated solutions, the strong shear flows oriented the directions of multilayer lamellae and phase transitions appeared between several cylindrical network structures. These observations on shear-induced microstructures and their distributions revealed a promising approach that could be used to design bio-microstructures based on phospholipid molecules under shear flows.
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Affiliation(s)
- Yue Shan
- Department of Physics, Wenzhou University, Wenzhou, Zhejiang 325035, China
| | - Xianghong Wang
- Department of Physics, Wenzhou University, Wenzhou, Zhejiang 325035, China
| | - Yongyun Ji
- Department of Physics, Wenzhou University, Wenzhou, Zhejiang 325035, China
| | - Linli He
- Department of Physics, Wenzhou University, Wenzhou, Zhejiang 325035, China
| | - Shiben Li
- Department of Physics, Wenzhou University, Wenzhou, Zhejiang 325035, China
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18
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Yang T, Xue H, Cao R, Li W. Formation of homochiral helical nanostructures in diblock copolymers under the confinement of nanopores. Phys Chem Chem Phys 2019; 21:7067-7074. [DOI: 10.1039/c9cp00227h] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The control of the homochirality of helical structures formed in achiral systems is of great interest as it is helpful for understanding the origin of homochirality in life.
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Affiliation(s)
- Tao Yang
- Ningxia Key Laboratory of Information Sensing & Intelligent Desert
- School of Physics and Electronic-Electrical Engineering
- Ningxia University
- Yinchuan 750021
- China
| | - Haiyan Xue
- Ningxia Key Laboratory of Information Sensing & Intelligent Desert
- School of Physics and Electronic-Electrical Engineering
- Ningxia University
- Yinchuan 750021
- China
| | - Ruifang Cao
- Xinhua College of Ningxia University
- Yinchuan 750021
- China
| | - Weihua Li
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science
- Fudan University
- Shanghai 200433
- China
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19
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Naseer MM, Hussain M, Bauzá A, Lo KM, Frontera A. Intramolecular Noncovalent Carbon Bonding Interaction Stabilizes the cis Conformation in Acylhydrazones. Chempluschem 2018; 83:881-885. [PMID: 31950685 DOI: 10.1002/cplu.201800329] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Indexed: 12/14/2022]
Abstract
Noncovalent carbon bonding, a recently explored σ-hole interaction, was hitherto supposed to be a weak and structure-guided interaction. Here, its role in the intramolecular stabilization of the cis conformation of the amide moiety in acylhydrazones is described. The calculations reveal an electron donation from the lone pair of the nitrogen atom to the empty antibonding C-N orbital [LP(N)→BD*(C-N)] with a concomitant stabilization energy of E(2) =1.2 kcal mol-1 .
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Affiliation(s)
| | - Majid Hussain
- Department of Chemistry, Quaid-i-Azam University, Islamabad, 45320, Pakistan
| | - Antonio Bauzá
- Departament de Química, Universitat de les Illes Balears, Ctra. de Valldemossa km 7.5, 07122, Palma de Mallorca, Spain
| | - Kong Mun Lo
- Research Centre for Crystalline Materials School of Science and Technology, Sunway University, 47500, Bandar Sunway, Selangor Darul Ehsan, Malaysia
| | - Antonio Frontera
- Departament de Química, Universitat de les Illes Balears, Ctra. de Valldemossa km 7.5, 07122, Palma de Mallorca, Spain
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20
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Aghajanzadeh M, Zamani M, Rostamizadeh K, Sharafi A, Danafar H. The role of miktoarm star copolymers in drug delivery systems. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2018. [DOI: 10.1080/10601325.2018.1483200] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Mozhgan Aghajanzadeh
- Department of Pharmaceutical Biomaterials, School of Pharmacy, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Mostafa Zamani
- Department of Pharmaceutical Biomaterials, School of Pharmacy, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Kobra Rostamizadeh
- Department of Pharmaceutical Biomaterials, School of Pharmacy, Zanjan University of Medical Sciences, Zanjan, Iran
- Zanjan Pharmaceutical Nanotechnology Research Center, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Ali Sharafi
- Department of Pharmaceutical Biomaterials, School of Pharmacy, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Hossein Danafar
- Zanjan Pharmaceutical Nanotechnology Research Center, Zanjan University of Medical Sciences, Zanjan, Iran
- Department of Pharmaceutical Nanotechnology, School of Pharmacy, Zanjan University of Medical Sciences, Zanjan, Iran
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21
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Hebbeker P, Plamper FA, Schneider S. Aggregation of Star Polymers: Complexation versus Segregation. MACROMOL THEOR SIMUL 2018. [DOI: 10.1002/mats.201800033] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Pascal Hebbeker
- Institute of Physical Chemistry; RWTH Aachen University; 52074 Aachen Germany
| | - Felix A. Plamper
- Institute of Physical Chemistry; RWTH Aachen University; 52074 Aachen Germany
| | - Stefanie Schneider
- Institute of Physical Chemistry; RWTH Aachen University; 52074 Aachen Germany
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22
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Yan N, Liu X, Zhang Y, Sun N, Jiang W, Zhu Y. Confined co-assembly of AB/BC diblock copolymer blends under 3D soft confinement. SOFT MATTER 2018; 14:4679-4686. [PMID: 29634055 DOI: 10.1039/c8sm00486b] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Compared to synthesizing a new block copolymer, blending of two types of block copolymers or a block copolymer and a homopolymer is a simple yet effective approach to create new self-assembled nanostructures. Here, we apply Monte Carlo (MC) simulations to mimic the co-assembly of AB/BC diblock copolymer blends within a three-dimensional (3D) soft confined space, which corresponds to the co-assembly confined in an emulsion droplet in experiment. The confined co-assemblies of four types of block copolymer blends at different block ratios, i.e., A8B8/B8C8, A6B10/B10C6, A12B4/B4C12 and A12B4/B10C6, are investigated by MC simulations. The simulation results reveal that the ratio of different types of blocks and the polymer-solvent interactions between the different blocks and the solvent determine the final self-assembled nanostructures. By tailoring these two controlling parameters, we not only reproduced some classic nanostructures, i.e., pupa-, onion-, and bud-like particles, but also predicted some unconventional nanostructures, such as patch-, Janus-, peanut-, disc- and snowman-like particles via MC simulations.
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Affiliation(s)
- Nan Yan
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China.
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23
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Bottlebrush block polymers in solutions: Self-assembled microstructures and interactions with lipid membranes. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.02.053] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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24
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Gao Z, Cui J, Han Y, Jiang W. Effect of solvophobicity on the phase behavior of linear ABC triblock copolymers in selective solvents: a Monte Carlo study. RSC Adv 2018; 8:26959-26967. [PMID: 35541080 PMCID: PMC9083281 DOI: 10.1039/c8ra05283b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Accepted: 07/10/2018] [Indexed: 11/21/2022] Open
Abstract
The microphase separation behavior of linear ABC triblock copolymers in A-selective solvents are studied using Monte Carlo simulation. The ABC triblock copolymer used in this study has a short solvophilic block A and two long solvophobic blocks B and C. The effects of the solvophobicity difference and the incompatibility between solvophobic blocks B and C on the micelle morphologies formed by linear ABC triblock copolymers are investigated, and phase diagrams as a function of the solvophobicity of blocks B and C are given at different repulsions between blocks B and C, respectively. A series of multicompartment micelles with distinct solvophobic parts is obtained, such as pupa-like multi-layered micelles, hamburger-like micelles and bumpy disks. Remarkably, when the solvophobicity of blocks B is much stronger than that of blocks C, a novel reverse core–shell–corona micelle with solvophilic blocks A located in the center of the micelle is obtained. Moreover, the results indicate that the competition between the effects of the incompatibility and solvophobicity difference between blocks B and C determines the microphase separation structures in the multicompartment micelles. These simulation results elucidate the mechanism of the formation of ABC triblock copolymer nanostructures and provide theoretical guidance for experimental studies. The solvophobicity difference and incompatibility between different solvophobic blocks determine the overall shapes and micro-structures of micelles formed by linear ABC terpolymers.![]()
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Affiliation(s)
- Zhihua Gao
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- China
| | - Jie Cui
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- China
| | - Yuanyuan Han
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- China
| | - Wei Jiang
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- China
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25
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Yan N, Zhu Y, Jiang W. Recent progress in the self-assembly of block copolymers confined in emulsion droplets. Chem Commun (Camb) 2018; 54:13183-13195. [DOI: 10.1039/c8cc05812a] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
When the self-assembly of block copolymers (BCPs) occurs within a deformable emulsion droplet, BCPs can aggregate into a variety of nanoscaled particles with unique nanostructures and properties since the confinement effect can effectively break the symmetry of a structure.
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Affiliation(s)
- Nan Yan
- College of Materials
- Chemistry and Chemical Engineering
- Hangzhou Normal University
- Hangzhou
- China
| | - Yutian Zhu
- College of Materials
- Chemistry and Chemical Engineering
- Hangzhou Normal University
- Hangzhou
- China
| | - Wei Jiang
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- China
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26
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Zhang Q, Lin J, Wang L, Xu Z. Theoretical modeling and simulations of self-assembly of copolymers in solution. Prog Polym Sci 2017. [DOI: 10.1016/j.progpolymsci.2017.04.003] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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27
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Design of pH-responsive “on-off” emulsions using CTAB/PPA emulsifiers by simulations and experiments. Colloids Surf A Physicochem Eng Asp 2017. [DOI: 10.1016/j.colsurfa.2017.08.027] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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28
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Tan H, Yu C, Lu Z, Zhou Y, Yan D. A dissipative particle dynamics simulation study on phase diagrams for the self-assembly of amphiphilic hyperbranched multiarm copolymers in various solvents. SOFT MATTER 2017; 13:6178-6188. [PMID: 28798969 DOI: 10.1039/c7sm01170a] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Self-assembly of amphiphilic hyperbranched multiarm copolymers (HMCs) has shown great potential for preparing all kinds of delicate supramolecular structures in all scales and dimensions in solution. However, theoretical studies on the influencing factors for the self-assembly of HMCs have been greatly lagging behind. The phase diagram of HMCs in selective solvents is very necessary but has not been disclosed up to now. Here, the self-assembly of HMCs with different hydrophilic fractions in various solvents was studied systematically by using dissipative particle dynamics (DPD) simulations. Three morphological phase diagrams are constructed and a rich variety of morphologies, ranging from spherical micelles, worm-like micelles, membranes, vesicles, vesosomes, small micellar aggregates (SMAs), and aggregates of spherical and worm-like micelles to helical micelles, are obtained. In addition, both the self-assembly mechanisms and the dynamic processes for the formation of these self-assemblies have been systematically investigated. The simulation results are consistent with available experimental observations. Besides, several novel structures, like aggregates of spherical and worm-like micelles, vesosomes and helical micelles, are firstly discovered for HMC self-assembly. We believe the current work will extend the knowledge on the self-assembly of HMCs, especially on the control of supramolecular structures and on fabricating novel self-assemblies.
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Affiliation(s)
- Haina Tan
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China.
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29
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Kakkar A, Traverso G, Farokhzad OC, Weissleder R, Langer R. Evolution of macromolecular complexity in drug delivery systems. Nat Rev Chem 2017; 1:63. [PMID: 31286060 PMCID: PMC6613785 DOI: 10.1038/s41570-017-0063] [Citation(s) in RCA: 192] [Impact Index Per Article: 27.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Designing therapeutics is a process with many challenges. Even if the first hurdle - designing a drug that modulates the action of a particular biological target in vitro - is overcome, selective delivery to that target in vivo presents a major barrier. Side-effects can, in many cases, result from the need to use higher doses without targeted delivery. However, the established use of macromolecules to encapsulate or conjugate drugs can provide improved delivery, and stands to enable better therapeutic outcomes. In this Review, we discuss how drug delivery approaches have evolved alongside our ability to prepare increasingly complex macromolecular architectures. We examine how this increased complexity has overcome the challenges of drug delivery and discuss its potential for fulfilling unmet needs in nanomedicine.
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Affiliation(s)
- Ashok Kakkar
- Harvard-MIT Division of Health Sciences, Department of Chemical Engineering, Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts 02142, USA
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montréal, Québec H3A 0B8, Canada
| | - Giovanni Traverso
- Harvard-MIT Division of Health Sciences, Department of Chemical Engineering, Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts 02142, USA
- Division of Gastroenterology, Brigham and Women's Hospital, Harvard Medical School
| | - Omid C Farokhzad
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, USA
| | - Ralph Weissleder
- Center for Systems Biology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 02114, USA
| | - Robert Langer
- Harvard-MIT Division of Health Sciences, Department of Chemical Engineering, Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts 02142, USA
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30
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Guo Y, Di Mare L, Li RKY, Wong JSS. Structure of Amphiphilic Terpolymer Raspberry Vesicles. Polymers (Basel) 2017; 9:E275. [PMID: 30970953 PMCID: PMC6432345 DOI: 10.3390/polym9070275] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Revised: 07/03/2017] [Accepted: 07/06/2017] [Indexed: 12/15/2022] Open
Abstract
Terpolymer raspberry vesicles contain domains of different chemical affinities. They are potential candidates as multi-compartment cargo carriers. Their efficacy depends on their stability and load capacity. Using a model star terpolymer system in an aqueous solution, a dissipative particle dynamic (DPD) simulation is employed to investigate how equilibrium aggregate structures are affected by polymer concentration and pairwise interaction energy in a solution. It is shown that a critical mass of polymer is necessary for vesicle formation. The free energy of the equilibrium aggregates are calculated and the results show that the transition from micelles to vesicles is governed by the interactions between the longest solvophobic block and the solvent. In addition, the ability of vesicles to encapsulate solvent is assessed. It is found that reducing the interaction energy favours solvent encapsulation, although solvent molecules can permeate through the vesicle's shell when repulsive interactions among monomers are low. Thus, one can optimize the loading capacity and the release rate of the vesicles by turning pairwise interaction energies of the polymer and the solvent. The ability to predict and control these aspects of the vesicles is an essential step towards designing vesicles for specific purposes.
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Affiliation(s)
- Yingying Guo
- Department of Mechanical Engineering, Imperial College London, London SW 7 2AZ, UK.
| | - Luca Di Mare
- Department of Engineering Science, University of Oxford, Southwell Thermofluids Laboratory, Oxford OX2 OES, UK.
| | - Robert K Y Li
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong, China.
| | - Janet S S Wong
- Department of Mechanical Engineering, Imperial College London, London SW 7 2AZ, UK.
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31
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Zhang J, Kong W, Duan H. Soft Confinement-Induced Morphologies of the Blends of AB Diblock Copolymers and C Homopolymers. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:3123-3133. [PMID: 28277673 DOI: 10.1021/acs.langmuir.7b00181] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Self-assembly behavior of the blends of AB diblock copolymers and C homopolymers in soft confinement is studied by using a simulated annealing method. Polymer solution droplets in a poor solvent environment realize the soft confinement. Several sequences of soft confinement-induced copolymer aggregates with different shapes and internal structures are predicted as functions of the size of confinement, the number ratio of AB diblock copolymers to C homopolymers, the volume fraction of blocks, the selectivity of confinement's surface, the incompatibility between blocks, and the competition between two block-homopolymer interactions. Simulation results demonstrate that those factors are able to tune the morphology of the aggregates precisely. We anticipate the rules achieved here is helpful to fabrication of polymeric particle with predesigned morphology.
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Affiliation(s)
- Jun Zhang
- Physics Science and Technology College, Xinjiang University , Urumqi, Xinjiang 830046, China
| | - Weixin Kong
- Physics Science and Technology College, Xinjiang University , Urumqi, Xinjiang 830046, China
| | - Haiming Duan
- Physics Science and Technology College, Xinjiang University , Urumqi, Xinjiang 830046, China
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32
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Duan C, Li W, Qiu F, Shi AC. Planet-Satellite Micellar Superstructures Formed by ABCB Terpolymers in Solution. ACS Macro Lett 2017; 6:257-261. [PMID: 35650923 DOI: 10.1021/acsmacrolett.7b00058] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The occurrence and relative stability of planet-satellite nanostructures, composed of a host micelle (the planet) accompanied by a number of guest micelles (the satellites), in ABCB tetrablock terpolymer solutions are studied using the polymeric self-consistent field theory and dissipative particle dynamics simulations. The theoretical results demonstrate that the self-assembly of the ABCB tetrablock terpolymers with solvophobic A- and C-blocks and solvophilic B-blocks could lead to the formation of various planet-satellite superstructures, where the planet and satellites are composed of the A- and C-blocks, respectively. Furthermore, the number of satellites is controlled by the ratio of the two B-blocks. The arrangement of the satellites surrounding the planet resembles the solution of the well-known Thomson's problem concerning the optimum arrangement of a given number of electrons on a sphere. Besides providing a facile route to engineering novel multicompartment micelles with planet-satellite superstructures for potential advanced applications, the study strengthens the prospect that multiblock copolymers could become a useful platform for the fabrication of complex nanostructures.
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Affiliation(s)
- Chao Duan
- State
Key Laboratory of Molecular Engineering of Polymers, Collaborative
Innovation Center of Polymers and Polymer Composite Materials, Department
of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Weihua Li
- State
Key Laboratory of Molecular Engineering of Polymers, Collaborative
Innovation Center of Polymers and Polymer Composite Materials, Department
of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Feng Qiu
- State
Key Laboratory of Molecular Engineering of Polymers, Collaborative
Innovation Center of Polymers and Polymer Composite Materials, Department
of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - An-Chang Shi
- Department
of Physics and Astronomy, McMaster University, Hamilton, Ontario L8S 4M1, Canada
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33
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Deng H, Qiang Y, Zhang T, Li W, Yang T. Chiral selection of single helix formed by diblock copolymers confined in nanopores. NANOSCALE 2016; 8:15961-15969. [PMID: 27536966 DOI: 10.1039/c6nr05043c] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Chiral selection has attracted tremendous attention from the scientific communities, especially from biologists, due to the mysterious origin of homochirality in life. The self-assembly of achiral block copolymers confined in nanopores offers a simple but useful model of forming helical structures, where the helical structures possess random chirality selection, i.e. equal probability of left-handedness and right-handedness. Based on this model, we study the stimulus-response of chiral selection to external conditions by introducing a designed chiral pattern onto the inner surface of a nanopore, aiming to obtain a defect-free helix with controllable homochirality. A cell dynamics simulation based on the time-dependent Ginzburg-Landau theory is carried out to demonstrate the tuning effect of the patterned surface on the chiral selection. Our results illustrate that the chirality of the helix can be successfully controlled to be consistent with that of the tailored surface patterns. This work provides a successful example for the stimulus response of the chiral selection of self-assembled morphologies from achiral macromolecules to external conditions, and hence sheds light on the understanding of the mechanism of the stimulus response.
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Affiliation(s)
- Hanlin Deng
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200433, China.
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34
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Zheng L, Wu J, Wang Z, Yin Y, Jiang R, Li B. Phase behavior of ABC-type triple-hydrophilic block copolymers in aqueous solutions. THE EUROPEAN PHYSICAL JOURNAL. E, SOFT MATTER 2016; 39:75. [PMID: 27465655 DOI: 10.1140/epje/i2016-16075-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Accepted: 07/11/2016] [Indexed: 06/06/2023]
Abstract
The phase behavior of symmetric ABC triple-hydrophilic triblock copolymers in concentrated aqueous solutions is investigated using a simulated annealing technique. Two typical cases, in which the hydrophilicity of the middle B-block is either stronger or weaker than that of the end A- and C-blocks, are studied. In these two cases, a variety of phase diagrams are constructed as a function of the volume fraction of the B-block and the copolymer concentration ([Formula: see text] for both non-frustrated and frustrated copolymers. Structures, such as two-color alternatingly packed cylinders or gyroid, and lamellae-in-lamellae etc. that do not occur in the melt system, are obtained in solutions. Rich phase transition sequences, especially re-entrant phase transitions involving complex continuous networks of alternating gyroid and alternating diamond are observed for a given copolymer with decreasing [Formula: see text] . The difference in hydrophilicity among different blocks can result in inhomogeneous distribution of solvent molecules in the morphology, and with the decrease of [Formula: see text] , the distribution of solvent molecules presents a non-monotonic variation. This results in a non-monotonic variation of the effective volume fraction of each domain with the decrease of [Formula: see text] , which induces the re-entrant phase transitions. The presence of a good solvent for all the blocks can cause changes in the effective segregation strengths between different blocks and also in chain conformations, hence can alter the bulk phases and results in the occurrence of new structures and phase transitions. Especially, structures having A-C interfaces or A-C mixed domains can be obtained even in the non-frustrated copolymer systems, and structures obtained in the frustrated systems may be similar to those obtained in the non-frustrated systems. The window of the alternating gyroid structures may occupy a large part of the phase diagram for non-frustrated copolymers with stronger B-hydrophilicity. This behavior can be used to tune the self-assembled structures of block copolymers.
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Affiliation(s)
- Lingfei Zheng
- School of Physics, Key Laboratory of Functional Polymer Materials of Ministry of Education, Nankai University, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), 300071, Tianjin, China
| | - Jianqi Wu
- School of Physics, Key Laboratory of Functional Polymer Materials of Ministry of Education, Nankai University, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), 300071, Tianjin, China
| | - Zheng Wang
- School of Physics, Key Laboratory of Functional Polymer Materials of Ministry of Education, Nankai University, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), 300071, Tianjin, China
| | - Yuhua Yin
- School of Physics, Key Laboratory of Functional Polymer Materials of Ministry of Education, Nankai University, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), 300071, Tianjin, China
| | - Run Jiang
- School of Physics, Key Laboratory of Functional Polymer Materials of Ministry of Education, Nankai University, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), 300071, Tianjin, China
| | - Baohui Li
- School of Physics, Key Laboratory of Functional Polymer Materials of Ministry of Education, Nankai University, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), 300071, Tianjin, China.
- Kavli Institute for Theoretical Physics China, CAS, 100190, Beijing, China.
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35
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Gao C, Zhou H, Qu Y, Wang W, Khan H, Zhang W. In Situ Synthesis of Block Copolymer Nanoassemblies via Polymerization-Induced Self-Assembly in Poly(ethylene glycol). Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b00688] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Chengqiang Gao
- 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
| | - Yaqing Qu
- 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
| | - Wei 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
| | - 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
| | - 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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36
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Yan N, Zhu Y, Jiang W. Self-assembly of ABC triblock copolymers under 3D soft confinement: a Monte Carlo study. SOFT MATTER 2016; 12:965-972. [PMID: 26571300 DOI: 10.1039/c5sm02079d] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Under three-dimensional (3D) soft confinement, block copolymers can self-assemble into unique nanostructures that cannot be fabricated in an un-confined space. Linear ABC triblock copolymers containing three chemically distinct polymer blocks possess relatively complex chain architecture, which can be a promising candidate for the 3D confined self-assembly. In the current study, the Monte Carlo technique was applied in a lattice model to study the self-assembly of ABC triblock copolymers under 3D soft confinement, which corresponds to the self-assembly of block copolymers confined in emulsion droplets. We demonstrated how to create various nanostructures by tuning the symmetry of ABC triblock copolymers, the incompatibilities between different block types, and solvent properties. Besides common pupa-like and bud-like nanostructures, our simulations predicted various unique self-assembled nanostructures, including a striped-pattern nanoparticle with intertwined A-cages and C-cages, a pyramid-like nanoparticle with four Janus B-C lamellae adhered onto its four surfaces, an ellipsoidal nanoparticle with a dumbbell-like A-core and two Janus B-C lamellae and a Janus B-C ring surrounding the A-core, a spherical nanoparticle with a A-core and a helical Janus B-C stripe around the A-core, a cubic nanoparticle with a cube-shape A-core and six Janus B-C lamellae adhered onto the surfaces of the A-cube, and a spherical nanoparticle with helical A, B and C structures, from the 3D confined self-assembly of ABC triblock copolymers. Moreover, the formation mechanisms of some typical nanostructures were also examined by the variations of the contact numbers with time and a series of snapshots at different Monte Carlo times. It is found that ABC triblock copolymers usually aggregate into a loose aggregate at first, and then the microphase separation between A, B and C blocks occurs, resulting in the formation of various nanostructures.
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Affiliation(s)
- Nan Yan
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People's Republic of China.
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37
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Zhou Y, Zhou C, He X, Xue X, Qian W, Luo S, Xia H. Shear-induced self-assembly of linear ABC triblock copolymers in solution: creation of 1D cylindrical micellar structures. RSC Adv 2016. [DOI: 10.1039/c5ra23474c] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In this work, shear flow is introduced to create 1D cylindrical micellar structures based on solution self-assembly of linear ABC terpolymers.
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Affiliation(s)
- Yang Zhou
- Institute of Chemical Materials
- Chinese Academy of Engineering and Physics
- 621900 Mianyang
- China
| | - Chun Zhou
- Institute of Chemical Materials
- Chinese Academy of Engineering and Physics
- 621900 Mianyang
- China
| | - Xi He
- Institute of Chemical Materials
- Chinese Academy of Engineering and Physics
- 621900 Mianyang
- China
- School of Mechanical and Electrical Engineering
| | - Xianggui Xue
- Institute of Chemical Materials
- Chinese Academy of Engineering and Physics
- 621900 Mianyang
- China
| | - Wen Qian
- Institute of Chemical Materials
- Chinese Academy of Engineering and Physics
- 621900 Mianyang
- China
| | - Shikai Luo
- Institute of Chemical Materials
- Chinese Academy of Engineering and Physics
- 621900 Mianyang
- China
| | - Honggang Xia
- The 1st Affiliated Hospital of Dalian Medical University
- 116000 Dalian
- China
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38
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Yan N, Liu H, Zhu Y, Jiang W, Dong Z. Entropy-Driven Hierarchical Nanostructures from Cooperative Self-Assembly of Gold Nanoparticles/Block Copolymers under Three-Dimensional Confinement. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b01219] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Nan Yan
- State
Key Laboratory of Polymer Physics and Chemistry, Changchun Institute
of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s Republic of China
- University
of
Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Hongxia Liu
- State
Key Laboratory of Polymer Physics and Chemistry, Changchun Institute
of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s Republic of China
- College
of Materials Science and Engineering, Jilin University, Changchun 130022, People’s Republic of China
| | - Yutian Zhu
- State
Key Laboratory of Polymer Physics and Chemistry, Changchun Institute
of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s Republic of China
| | - Wei Jiang
- State
Key Laboratory of Polymer Physics and Chemistry, Changchun Institute
of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s Republic of China
| | - Zeyuan Dong
- State
Key Laboratory of Supramolecular Structure and Materials College of
Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, People’s Republic of China
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39
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40
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Liu H, Jiang X, Bian R, Tong M, Tang D, Zhou X, Zhao Y. Facile synthesis of A2mB2n-type starlike copolymers with two types of V-shaped arms by combination of RAFT, ATRP and ROP processes. POLYMER 2015. [DOI: 10.1016/j.polymer.2015.01.059] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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41
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Ma S, Hu Y, Wang R. Self-Assembly of Polymer Tethered Molecular Nanoparticle Shape Amphiphiles in Selective Solvents. Macromolecules 2015. [DOI: 10.1021/ma5026219] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Shiying Ma
- Key
Laboratory of High Performance Polymer Materials and Technology of
Ministry of Education, Department of Polymer Science and Engineering,
State Key Laboratory of Coordination Chemistry, School of Chemistry
and Chemical Engineering, Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing 210093, China
- College
of Chemistry and Chemical Engineering, Taishan University, Taian 271021, China
| | - Yi Hu
- Key
Laboratory of High Performance Polymer Materials and Technology of
Ministry of Education, Department of Polymer Science and Engineering,
State Key Laboratory of Coordination Chemistry, School of Chemistry
and Chemical Engineering, Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing 210093, China
| | - Rong Wang
- Key
Laboratory of High Performance Polymer Materials and Technology of
Ministry of Education, Department of Polymer Science and Engineering,
State Key Laboratory of Coordination Chemistry, School of Chemistry
and Chemical Engineering, Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing 210093, China
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42
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Xu J, Wang K, Li J, Zhou H, Xie X, Zhu J. ABC Triblock Copolymer Particles with Tunable Shape and Internal Structure through 3D Confined Assembly. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b00335] [Citation(s) in RCA: 87] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jiangping Xu
- Key
Laboratory for Large-Format Battery Materials and System of the Ministry
of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, China
- State
Key Laboratory of Materials Processing and Mold Technology, School
of Materials Science and Engineering, HUST, Wuhan 430074, China
| | - Ke Wang
- Key
Laboratory for Large-Format Battery Materials and System of the Ministry
of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, China
| | - Jingyi Li
- Key
Laboratory for Large-Format Battery Materials and System of the Ministry
of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, China
| | - Huamin Zhou
- State
Key Laboratory of Materials Processing and Mold Technology, School
of Materials Science and Engineering, HUST, Wuhan 430074, China
| | - Xiaolin Xie
- Key
Laboratory for Large-Format Battery Materials and System of the Ministry
of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, China
| | - Jintao Zhu
- Key
Laboratory for Large-Format Battery Materials and System of the Ministry
of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, China
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43
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Zhou Y, Long X, Xue X, Qian W, Zhang C. Morphologies and dynamics of linear ABC triblock copolymers with different block sequences. RSC Adv 2015. [DOI: 10.1039/c4ra13814g] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Two different mechanisms of dynamic evolution, i.e. “contacting and fusing” for l-ABC and l-ACB, and “folding and fusing” for l-BAC, are founded firstly.
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Affiliation(s)
- Yang Zhou
- Institute of Chemical Materials
- Chinese Academy of Engineering and Physics
- Mianyang
- China
| | - Xinping Long
- Institute of Chemical Materials
- Chinese Academy of Engineering and Physics
- Mianyang
- China
| | - Xianggui Xue
- Institute of Chemical Materials
- Chinese Academy of Engineering and Physics
- Mianyang
- China
| | - Wen Qian
- Institute of Chemical Materials
- Chinese Academy of Engineering and Physics
- Mianyang
- China
| | - Chaoyang Zhang
- Institute of Chemical Materials
- Chinese Academy of Engineering and Physics
- Mianyang
- China
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44
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Zhou C, Xia H, Zhou Y, Xue X, Luo S. Dissipative particle dynamics simulations of the morphologies and dynamics of linear ABC triblock copolymers in solutions. RSC Adv 2015. [DOI: 10.1039/c5ra09661h] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Due to the great potential in the field of multifunctional nanoreactors and carriers, several previous works have shown the interesting morphologies of multicompartment micelles from simple linear ABC triblock copolymers in solutions.
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Affiliation(s)
- Chun Zhou
- School of Materials Science and Engineering
- Southwest University of Science and Technology
- 621010 Mianyang
- China
| | - Honggang Xia
- The 1st Affiliated Hospital of Dalian Medical University
- 116000 Dalian
- China
| | - Yang Zhou
- Institute of Chemical Materials
- Chinese Academy of Engineering and Physics
- 621010 Mianyang
- China
| | - Xianggui Xue
- Institute of Chemical Materials
- Chinese Academy of Engineering and Physics
- 621010 Mianyang
- China
| | - Shikai Luo
- Institute of Chemical Materials
- Chinese Academy of Engineering and Physics
- 621010 Mianyang
- China
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45
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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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46
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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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47
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Zhou Y, Xia HG, Long XP, Xue XG, Qian W. Complex Multicompartment Micelles from Simple ABC Linear Triblock Copolymers in Solution. MACROMOL THEOR SIMUL 2014. [DOI: 10.1002/mats.201400072] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yang Zhou
- Institute of Chemical Materials; Chinese Academy of Engineering and Physics; Mianyang 621900 China
| | - Hong-Gang Xia
- The 1st Affiliated Hospital of Dalian Medical University; Dalian 116000 China
| | - Xin-Ping Long
- Chinese Academy of Engineering and Physics; Mianyang 621900 China
| | - Xiang-Gui Xue
- Institute of Chemical Materials; Chinese Academy of Engineering and Physics; Mianyang 621900 China
| | - Wen Qian
- Institute of Chemical Materials; Chinese Academy of Engineering and Physics; Mianyang 621900 China
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48
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Fan J, Cui J, Han Y, Jiang W. Monte Carlo simulation of temperature-induced reversible morphological changes between sphere and vesicle formed by AB diblock copolymers. RSC Adv 2014. [DOI: 10.1039/c4ra04112g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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49
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Sheng Y, Yan N, An J, Zhu Y. Multicompartment nanoparticles from the self-assembly of mixtures of ABC and AC block copolymers in C-selective solvents. Chem Phys 2014. [DOI: 10.1016/j.chemphys.2014.07.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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50
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Chen L, Jiang T, Cai C, Wang L, Lin J, Cao X. Polypeptide-based "smart" micelles for dual-drug delivery: a combination study of experiments and simulations. Adv Healthc Mater 2014; 3:1508-17. [PMID: 24652770 DOI: 10.1002/adhm.201300638] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2013] [Revised: 02/21/2014] [Indexed: 11/11/2022]
Abstract
A dual-drug-loaded micelle is designed and constructed from a mixture of poly(propylene oxide)-b-poly(γ-benzyl-l-glutamate)-b-poly(ethylene glycol) (PPO-b-PBLG-b-PEG) triblock terpolymers and two model drugs, doxorubicin (DOX) and naproxen (Nap). In the micelles, the DOX is chemically linked to the PBLG backbones through an acid-cleavable hydrazone bond, whereas the Nap is physically encapsulated in the cores. The drug loading and releasing behaviors of the dual-drug-loaded micelles as well as single drug-loaded micelles (DOX-conjugated or Nap-loaded micelles) are studied. The structures of micelles are characterized by means of microscopies and dynamic light scattering, and further examined by dissipative particle dynamics (DPD) simulations. It is revealed that the micelles possess a core-shell-corona structure in which the PPO/Nap, PBLG/DOX, and PEG aggregate to form the core, shell, and corona, respectively. In vitro studies reveal that the release of DOX and Nap is pH- and thermosensitive. Such drug releasing behaviors are also examined by DPD simulations, and more information regarding the mechanism is obtained. In addition, the bio-related properties such as cellular uptake of the micelles and biocompatibility of the deliveries are evaluated. The results show that the dual-drug-loaded micelles are biocompatible at normal physiological conditions and retain the anti-cancer efficiency.
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Affiliation(s)
- Lili Chen
- Shanghai Key Laboratory of Advanced Polymeric Materials; Key Laboratory for Ultrafine Materials of Ministry of Education; School of Materials Science and Engineering; East China University of Science and Technology; Shanghai 200237 China
| | - Tao Jiang
- Shanghai Key Laboratory of Advanced Polymeric Materials; Key Laboratory for Ultrafine Materials of Ministry of Education; School of Materials Science and Engineering; East China University of Science and Technology; Shanghai 200237 China
| | - Chunhua Cai
- Shanghai Key Laboratory of Advanced Polymeric Materials; Key Laboratory for Ultrafine Materials of Ministry of Education; School of Materials Science and Engineering; East China University of Science and Technology; Shanghai 200237 China
| | - Liquan Wang
- Shanghai Key Laboratory of Advanced Polymeric Materials; Key Laboratory for Ultrafine Materials of Ministry of Education; School of Materials Science and Engineering; East China University of Science and Technology; Shanghai 200237 China
| | - Jiaping Lin
- Shanghai Key Laboratory of Advanced Polymeric Materials; Key Laboratory for Ultrafine Materials of Ministry of Education; School of Materials Science and Engineering; East China University of Science and Technology; Shanghai 200237 China
| | - Xuguang Cao
- Shanghai Key Laboratory of Advanced Polymeric Materials; Key Laboratory for Ultrafine Materials of Ministry of Education; School of Materials Science and Engineering; East China University of Science and Technology; Shanghai 200237 China
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