1
|
Cai C, Tang H, Li F, Xu Z, Lin J, Li D, Tang Z, Yang C, Gao L. Archimedean Spirals with Controllable Chirality: Disk Substrate-Mediated Solution Assembly of Rod-Coil Block Copolymers. JACS AU 2024; 4:2363-2371. [PMID: 38938804 PMCID: PMC11200227 DOI: 10.1021/jacsau.4c00324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Revised: 05/24/2024] [Accepted: 06/03/2024] [Indexed: 06/29/2024]
Abstract
Spirals are common in nature; however, they are rarely observed in polymer self-assembly systems, and the formation mechanism is not well understood. Herein, we report the formation of two-dimensional (2D) spiral patterns via microdisk substrate-mediated solution self-assembly of polypeptide-based rod-coil block copolymers. The spiral pattern consists of multiple strands assembled from the block copolymers, and two central points are observed. The spirals fit well with the Archimedean spiral model, and their chirality is dependent on the chirality of the polypeptide blocks. As revealed by a combination of experiments and theoretical simulations, these spirals are induced by an interplay of the parallel ordering tendency of the strands and circular confinement of the microdisks. This work presents the first example regarding substrate-mediated self-assembly of block copolymers into spirals. The gained information could not only enhance our understanding of natural spirals but also assist in both the controllable preparations and applications of spiral nanostructures.
Collapse
Affiliation(s)
- Chunhua Cai
- Shanghai
Key Laboratory of Advanced Polymeric Materials, Key Laboratory for
Ultrafine Materials of Ministry of Education, Frontiers Science Center
for Materiobiology and Dynamic Chemistry, School of Materials Science
and Engineering, East China University of
Science and Technology, Shanghai 200237, China
| | - Hongfeng Tang
- Shanghai
Key Laboratory of Advanced Polymeric Materials, Key Laboratory for
Ultrafine Materials of Ministry of Education, Frontiers Science Center
for Materiobiology and Dynamic Chemistry, School of Materials Science
and Engineering, East China University of
Science and Technology, Shanghai 200237, China
| | - Feiyan Li
- Shanghai
Key Laboratory of Advanced Polymeric Materials, Key Laboratory for
Ultrafine Materials of Ministry of Education, Frontiers Science Center
for Materiobiology and Dynamic Chemistry, School of Materials Science
and Engineering, East China University of
Science and Technology, Shanghai 200237, China
| | - Zhanwen Xu
- State
Key Laboratory of Molecular Engineering of Polymers, Department of
Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Jiaping Lin
- Shanghai
Key Laboratory of Advanced Polymeric Materials, Key Laboratory for
Ultrafine Materials of Ministry of Education, Frontiers Science Center
for Materiobiology and Dynamic Chemistry, School of Materials Science
and Engineering, East China University of
Science and Technology, Shanghai 200237, China
| | - Da Li
- Shanghai
Key Laboratory of Advanced Polymeric Materials, Key Laboratory for
Ultrafine Materials of Ministry of Education, Frontiers Science Center
for Materiobiology and Dynamic Chemistry, School of Materials Science
and Engineering, East China University of
Science and Technology, Shanghai 200237, China
| | - Zhengmin Tang
- Department
of Laboratory Medicine, the First Affiliated Hospital, College of
Medicine, Zhejiang University, Hangzhou 311121, China
| | - Chunming Yang
- Shanghai
Synchrotron Radiation Facility, Shanghai
Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, China
| | - Liang Gao
- Shanghai
Key Laboratory of Advanced Polymeric Materials, Key Laboratory for
Ultrafine Materials of Ministry of Education, Frontiers Science Center
for Materiobiology and Dynamic Chemistry, School of Materials Science
and Engineering, East China University of
Science and Technology, Shanghai 200237, China
| |
Collapse
|
2
|
Properties and Bioapplications of Amphiphilic Janus Dendrimers: A Review. Pharmaceutics 2023; 15:pharmaceutics15020589. [PMID: 36839911 PMCID: PMC9958631 DOI: 10.3390/pharmaceutics15020589] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 02/02/2023] [Accepted: 02/07/2023] [Indexed: 02/12/2023] Open
Abstract
Amphiphilic Janus dendrimers are arrangements containing both hydrophilic and hydrophobic units, capable of forming ordered aggregates by intermolecular noncovalent interactions between the dendrimer units. Compared to conventional dendrimers, these molecular self-assemblies possess particular and effective attributes i.e., the presence of different terminal groups, essential to design new elaborated materials. The present review will focus on the pharmaceutical and biomedical application of amphiphilic Janus dendrimers. Important information for the development of novel optimized pharmaceutical formulations, such as structural classification, synthetic pathways, properties and applications, will offer the complete characterization of this type of Janus dendrimers. This work will constitute an up-to-date background for dendrimer specialists involved in designing amphiphilic Janus dendrimer-based nanomaterials for future innovations in this promising field.
Collapse
|
3
|
Basov A, Dzhimak S, Sokolov M, Malyshko V, Moiseev A, Butina E, Elkina A, Baryshev M. Changes in Number and Antibacterial Activity of Silver Nanoparticles on the Surface of Suture Materials during Cyclic Freezing. NANOMATERIALS 2022; 12:nano12071164. [PMID: 35407282 PMCID: PMC9000594 DOI: 10.3390/nano12071164] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 03/22/2022] [Accepted: 03/29/2022] [Indexed: 11/23/2022]
Abstract
This article presents the results of the 10-fold cyclic freezing (−37.0 °C) and thawing (0.0 °C) effect on the number and size range of silver nanoparticles (AgNPs). AgNPs were obtained by the cavitation-diffusion photochemical reduction method and their sorption on the fiber surface of various suture materials, perlon, silk, and catgut, was studied. The distribution of nanoparticles of different diameters before and after the application of the cyclic freezing/thawing processes for each type of fibers studied was determined using electron microscopy. In general, the present study demonstrates the effectiveness of using the technique of 10-fold cyclic freezing. It is applicable to increase the absolute amount of AgNPs on the surface of the suture material with a simultaneous decrease in the size dispersion. It was also found that the application of the developed technique leads to the overwhelming predominance of nanoparticles with 1 to 15 nm diameter on all the investigated fibers. In addition, it was shown that after the application of the freeze/thaw method, the antibacterial activity of silk and catgut suture materials with AgNPs was significantly higher than before their treatment by cyclic freezing.
Collapse
Affiliation(s)
- Alexander Basov
- Department of Fundamental and Clinical Biochemistry, Kuban State Medical University, 4 Mitrofan Sedina St., 350063 Krasnodar, Russia; (A.B.); (V.M.)
- Department of Radiophysics and Nanothechnology, Kuban State University, 149 Stavropolskaya St., 350040 Krasnodar, Russia; (S.D.); (M.S.); (M.B.)
| | - Stepan Dzhimak
- Department of Radiophysics and Nanothechnology, Kuban State University, 149 Stavropolskaya St., 350040 Krasnodar, Russia; (S.D.); (M.S.); (M.B.)
- Laboratory of Problems of Stable Isotope Spreading in Living Systems, Federal Research Center the Southern Scientific Center of the Russian Academy of Sciences, 41 Chekhov Ave., 344006 Rostov-on-Don, Russia
| | - Mikhail Sokolov
- Department of Radiophysics and Nanothechnology, Kuban State University, 149 Stavropolskaya St., 350040 Krasnodar, Russia; (S.D.); (M.S.); (M.B.)
| | - Vadim Malyshko
- Department of Fundamental and Clinical Biochemistry, Kuban State Medical University, 4 Mitrofan Sedina St., 350063 Krasnodar, Russia; (A.B.); (V.M.)
- Laboratory of Problems of Stable Isotope Spreading in Living Systems, Federal Research Center the Southern Scientific Center of the Russian Academy of Sciences, 41 Chekhov Ave., 344006 Rostov-on-Don, Russia
| | - Arkadii Moiseev
- Department of Organization and Support of Scientific Activities, Kuban State Agrarian University, 13 Kalinina St., 350004 Krasnodar, Russia;
| | - Elena Butina
- Department of Technology of Fats, Cosmetics, Commodity Science, Processes and Devices, Kuban State Technological University, 2 Moscow St., 350072 Krasnodar, Russia;
| | - Anna Elkina
- Department of Radiophysics and Nanothechnology, Kuban State University, 149 Stavropolskaya St., 350040 Krasnodar, Russia; (S.D.); (M.S.); (M.B.)
- Laboratory of Problems of Stable Isotope Spreading in Living Systems, Federal Research Center the Southern Scientific Center of the Russian Academy of Sciences, 41 Chekhov Ave., 344006 Rostov-on-Don, Russia
- Correspondence: ; Tel.: +7-918-068-83-81
| | - Mikhail Baryshev
- Department of Radiophysics and Nanothechnology, Kuban State University, 149 Stavropolskaya St., 350040 Krasnodar, Russia; (S.D.); (M.S.); (M.B.)
- Laboratory of Problems of Stable Isotope Spreading in Living Systems, Federal Research Center the Southern Scientific Center of the Russian Academy of Sciences, 41 Chekhov Ave., 344006 Rostov-on-Don, Russia
- Department of Technology of Fats, Cosmetics, Commodity Science, Processes and Devices, Kuban State Technological University, 2 Moscow St., 350072 Krasnodar, Russia;
| |
Collapse
|
4
|
Guerin G, Rupar PA, Winnik MA. In-Depth Analysis of the Effect of Fragmentation on the Crystallization-Driven Self-Assembly Growth Kinetics of 1D Micelles Studied by Seed Trapping. Polymers (Basel) 2021; 13:3122. [PMID: 34578023 PMCID: PMC8472273 DOI: 10.3390/polym13183122] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 09/08/2021] [Accepted: 09/10/2021] [Indexed: 01/26/2023] Open
Abstract
Studying the growth of 1D structures formed by the self-assembly of crystalline-coil block copolymers in solution at elevated temperatures is a challenging task. Like most 1D fibril structures, they fragment and dissolve when the solution is heated, creating a mixture of surviving crystallites and free polymer chains. However, unlike protein fibrils, no new nuclei are formed upon cooling and only the surviving crystallites regrow. Here, we report how trapping these crystallites at elevated temperatures allowed us to study their growth kinetics at different annealing times and for different amounts of unimer added. We developed a model describing the growth kinetics of these crystallites that accounts for fragmentation accompanying the 1D growth process. We show that the growth kinetics follow a stretched exponential law that may be due to polymer fractionation. In addition, by evaluating the micelle growth rate as a function of the concentration of unimer present in solution, we could conclude that the micelle growth occurred in the mononucleation regime.
Collapse
Affiliation(s)
- Gerald Guerin
- 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
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON M5S 3H6, Canada
| | - Paul A. Rupar
- Department of Chemistry, University of Alabama, Tuscaloosa, AL 35487, USA;
| | - Mitchell A. Winnik
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON M5S 3H6, Canada
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, ON M5S 3E2, Canada
| |
Collapse
|
5
|
Zhang X, Huang Q, Wang F, Sun H, Xiao J, Cornel EJ, Zhu Y, Du J. Giant Polymer Vesicles with a Latticelike Membrane. ACS Macro Lett 2021; 10:1015-1022. [PMID: 35549122 DOI: 10.1021/acsmacrolett.1c00254] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Hierarchical self-assembly offers great possibilities to mimic biological systems with finely arranged complex structures. Herein, we demonstrate the preparation and formation mechanism of an unusual giant polymer vesicle with a latticelike membrane (GVLM). This GVLM is formed by fusion-induced particle assembly (FIPA) of small vesicles that are self-assembled from poly(ethylene oxide)-block-poly[(2-(tetrahydrofuranyloxy)ethyl methacrylate)-stat-(6-(3,3-diphenylnaphthopyranyloxy)hexyl methacrylate)] [PEO43-b-P(TMA22-stat-NMA4)]. Flexible TMA units with high chain mobility and relatively rigid NMA units with intrinsic π-π stacking form the hydrophobic block. These units act as "antifusion" and "profusion" components, respectively. The latticelike membrane of the final GVLM consists of hundreds of small polymer vesicles that are interconnected via multiple interactions. Transmission electron microscopy (TEM) and dynamic light scattering (DLS) studies show that the diameter of the GVLMs is 800-1000 nm. Overall, we provide a new insight into the judicious preparation of hierarchical nanostructures via chemical synthesis and FIPA.
Collapse
Affiliation(s)
- Xinyue Zhang
- Department of Orthopedics, Shanghai Tenth People’s Hospital, Tongji University, 301 Middle Yanchang Road, Shanghai 200072, China
- Department of Polymeric Materials, School of Materials Science and Engineering, Tongji University, 4800 Caoan Road, Shanghai 201804, China
| | - Qiutong Huang
- Department of Polymeric Materials, School of Materials Science and Engineering, Tongji University, 4800 Caoan Road, Shanghai 201804, China
| | - Fangyingkai Wang
- Department of Polymeric Materials, School of Materials Science and Engineering, Tongji University, 4800 Caoan Road, Shanghai 201804, China
| | - Hui Sun
- Department of Polymeric Materials, School of Materials Science and Engineering, Tongji University, 4800 Caoan Road, Shanghai 201804, China
| | - Jiangang Xiao
- Department of Polymeric Materials, School of Materials Science and Engineering, Tongji University, 4800 Caoan Road, Shanghai 201804, China
| | - Erik Jan Cornel
- Department of Polymeric Materials, School of Materials Science and Engineering, Tongji University, 4800 Caoan Road, Shanghai 201804, China
| | - Yunqing Zhu
- Department of Orthopedics, Shanghai Tenth People’s Hospital, Tongji University, 301 Middle Yanchang Road, Shanghai 200072, China
- Department of Polymeric Materials, School of Materials Science and Engineering, Tongji University, 4800 Caoan Road, Shanghai 201804, China
| | - Jianzhong Du
- Department of Orthopedics, Shanghai Tenth People’s Hospital, Tongji University, 301 Middle Yanchang Road, Shanghai 200072, China
- Department of Polymeric Materials, School of Materials Science and Engineering, Tongji University, 4800 Caoan Road, Shanghai 201804, China
| |
Collapse
|
6
|
Qin J, Li X, Lv Q, He M, Chen M, Xu Y, Chen X, Yu J. Selective dispersion of neutral nanoplates and the interfacial structure of copolymers based on coarse-grained molecular dynamics simulations. SOFT MATTER 2021; 17:5950-5959. [PMID: 34046651 DOI: 10.1039/d1sm00352f] [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 selective dispersion of neutral nanoplates (NNP) and the control of the interfacial structure of copolymers are challenging. In this work, we employ coarse-grained molecular dynamics (CGMD) to investigate the dispersion of NNP and the interfacial structure. The introduction of NNP significantly changes the interfacial structure and formation mechanism of diblock copolymers (DBCP), which is related to the matrix phase, distribution, composition, and length of two different chain segments (A and B) in AmBn-DBCP. The phase-weak groups that have a poor interaction with NNP will stack easily, whereas the stacking degree for the phase-rich groups that have a strong interaction with NNP decreases due to the addition of NNP. The interaction between two phases will be enhanced, which is favorable for the formation of a random network structure. Due to the strong interaction of the phase-rich groups with NNP, the NNP change the accumulation types of phase-weak groups and enhances the combination of two chain segments in favor of the formation of a cylindrical micelle-like structure. The transmission electron microscopy (TEM) images show that layered double hydroxide (LDH) orientationally distributes in the acrylic acid chain segments in ethylene acrylic acid (EAA) random copolymers, which is in agreement with the theoretical simulation results. This proves that the selective dispersion of LDH in copolymers affects their interfacial structure.
Collapse
Affiliation(s)
- Jun Qin
- College of Materials and Metallurgy, Guizhou University, Guiyang 550025, China. and Key Laboratory of Karst Environment and Geohazard Prevention, Guizhou Province, College of Resources and Environmental Engineering, Guizhou University, Guiyang 550025, China
| | - Xing Li
- Key Laboratory of Karst Environment and Geohazard Prevention, Guizhou Province, College of Resources and Environmental Engineering, Guizhou University, Guiyang 550025, China
| | - Qing Lv
- Key Laboratory of Karst Environment and Geohazard Prevention, Guizhou Province, College of Resources and Environmental Engineering, Guizhou University, Guiyang 550025, China
| | - Min He
- College of Materials and Metallurgy, Guizhou University, Guiyang 550025, China.
| | - Mengyu Chen
- Key Laboratory of Karst Environment and Geohazard Prevention, Guizhou Province, College of Resources and Environmental Engineering, Guizhou University, Guiyang 550025, China
| | - Yong Xu
- Key Laboratory of Karst Environment and Geohazard Prevention, Guizhou Province, College of Resources and Environmental Engineering, Guizhou University, Guiyang 550025, China
| | - Xiaolang Chen
- Key Laboratory of Advanced Materials Technology Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China.
| | - Jie Yu
- College of Materials and Metallurgy, Guizhou University, Guiyang 550025, China. and National Engineering Research Center for Compounding and Modification of Polymer Materials, Guiyang 550058, China
| |
Collapse
|
7
|
Tian M, Ma C, Huang X, Lu G, Feng C. Supramolecular-micelle-directed preparation of uniform magnetic nanofibers with length tunability, colloidal stability and capacity for surface functionalization. Polym Chem 2021. [DOI: 10.1039/d1py00168j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
We report a versatile and efficient platform to prepare uniform magnetic nanofibers with length tunability, colloidal and morphological stability, capacity for surface functionalization and enhanced T2 contrast.
Collapse
Affiliation(s)
- Mingwei Tian
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules
- Center for Excellence in Molecular Synthesis
- Shanghai Institute of Organic Chemistry
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
| | - Chen Ma
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules
- Center for Excellence in Molecular Synthesis
- Shanghai Institute of Organic Chemistry
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
| | - Xiaoyu Huang
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules
- Center for Excellence in Molecular Synthesis
- Shanghai Institute of Organic Chemistry
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
| | - Guolin Lu
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules
- Center for Excellence in Molecular Synthesis
- Shanghai Institute of Organic Chemistry
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
| | - Chun Feng
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules
- Center for Excellence in Molecular Synthesis
- Shanghai Institute of Organic Chemistry
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
| |
Collapse
|
8
|
Guerin G, Cruz M, Yu Q. Formation of 2D and 3D multi-tori mesostructures via crystallization-driven self-assembly. SCIENCE ADVANCES 2020; 6:eaaz7301. [PMID: 32494620 PMCID: PMC7159922 DOI: 10.1126/sciadv.aaz7301] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Accepted: 01/22/2020] [Indexed: 06/11/2023]
Abstract
The fabrication of three-dimensional (3D) objects by polymer self-assembly in solution is extremely challenging. Here, multi-tori mesostructures were obtained from the crystallization-driven self-assembly of a coil-crystalline block copolymer (BCP) in mixed solvents. The formation of these structures follows a multistep process. First, the BCP self-assembles into amorphous micrometer-large vesicles. Then, the BCP confined in these mesosized vesicles crystallizes. This second step leads to the formation of objects with shapes ranging from closed 3D multi-tori spherical shells to 2D toroid mesh monolayers, depending on the solvent mixture composition. This approach demonstrates how topological constraints induced by the specific interactions between coil-crystalline BCP and solvents can be used to prepare mesostructures of complex morphologies.
Collapse
Affiliation(s)
- Gerald Guerin
- 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
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON M5S 3H6, Canada
| | - Menandro Cruz
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON M5S 3H6, Canada
- Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, UK
| | - Qing Yu
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON M5S 3H6, Canada
| |
Collapse
|
9
|
Lu Y, Lin J, Wang L, Zhang L, Cai C. Self-Assembly of Copolymer Micelles: Higher-Level Assembly for Constructing Hierarchical Structure. Chem Rev 2020; 120:4111-4140. [DOI: 10.1021/acs.chemrev.9b00774] [Citation(s) in RCA: 105] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yingqing Lu
- 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
| | - 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
| | - Liangshun Zhang
- 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
| |
Collapse
|
10
|
Xu W, Xu Z, Cai C, Lin J, Zhang S, Zhang L, Lin S, Yao Y, Qi H. Ordered Surface Nanostructures Self-Assembled from Rod-Coil Block Copolymers on Microspheres. J Phys Chem Lett 2019; 10:6375-6381. [PMID: 31581777 DOI: 10.1021/acs.jpclett.9b02606] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
An ordered surface nanostructure endows materials advanced functions. However, fabricating ordered surface-patterned particles via the polymer self-assembly approach is a challenge. Here we report that poly(γ-benzyl-l-glutamate)-block-poly(ethylene glycol) rod-coil block copolymers are able to form uniform-surface micelles on polystyrene microspheres through a solution self-assembly approach. The size of the surface micelles can be varied by the molecular weight of the block copolymers. These surface micelles are arranged in a manner consistent with the Euler theorem. Most of the micelles are six-fold coordinated, and the number difference between the five-fold and the seven-fold coordination is 12. Simulations on model systems qualitatively reproduced the experimental findings and provided direct observations for the surface-patterned particles, including the polymer chain packing manner in surface micelles at the molecular level and the array feature of the surface micelles through 2D projections of the surface patterns.
Collapse
Affiliation(s)
- Wenheng Xu
- 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
| | - Zhanwen Xu
- 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
| | - 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
| | - Shengmiao Zhang
- 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
| | - Liangshun Zhang
- 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
| | - Shaoliang 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
| | - Yuan Yao
- 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
| | - Huimin Qi
- 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
| |
Collapse
|
11
|
Van Horn RM, Steffen MR, O'Connor D. Recent progress in block copolymer crystallization. POLYMER CRYSTALLIZATION 2018. [DOI: 10.1002/pcr2.10039] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Ryan M. Van Horn
- Department of Chemistry Allegheny College Meadville Pennsylvania
| | | | - Dana O'Connor
- Department of Chemistry Allegheny College Meadville Pennsylvania
| |
Collapse
|
12
|
Xu Y, Wang T, He Z, Zhou M, Yu W, Shi B, Huang K. Two-step tandem synthetic strategy for hyper-cross-linking hollow microporous organic nanospheres. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.07.064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
13
|
Xu Q, Huang T, Li S, Li K, Li C, Liu Y, Wang Y, Yu C, Zhou Y. Emulsion‐Assisted Polymerization‐Induced Hierarchical Self‐Assembly of Giant Sea Urchin‐like Aggregates on a Large Scale. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201802833] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Qingsong Xu
- School of Chemistry and Chemical EngineeringState Key Laboratory of Metal Matrix CompositesShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Tong Huang
- School of Chemistry and Chemical EngineeringState Key Laboratory of Metal Matrix CompositesShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Shanlong Li
- School of Chemistry and Chemical EngineeringState Key Laboratory of Metal Matrix CompositesShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Ke Li
- School of Chemistry and Chemical EngineeringState Key Laboratory of Metal Matrix CompositesShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Chuanlong Li
- School of Chemistry and Chemical EngineeringState Key Laboratory of Metal Matrix CompositesShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Yannan Liu
- School of Chemistry and Chemical EngineeringState Key Laboratory of Metal Matrix CompositesShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Yuling Wang
- School of Chemistry and Chemical EngineeringState Key Laboratory of Metal Matrix CompositesShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Chunyang Yu
- School of Chemistry and Chemical EngineeringState Key Laboratory of Metal Matrix CompositesShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Yongfeng Zhou
- School of Chemistry and Chemical EngineeringState Key Laboratory of Metal Matrix CompositesShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| |
Collapse
|
14
|
Xu Q, Huang T, Li S, Li K, Li C, Liu Y, Wang Y, Yu C, Zhou Y. Emulsion‐Assisted Polymerization‐Induced Hierarchical Self‐Assembly of Giant Sea Urchin‐like Aggregates on a Large Scale. Angew Chem Int Ed Engl 2018; 57:8043-8047. [DOI: 10.1002/anie.201802833] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Revised: 05/02/2018] [Indexed: 12/12/2022]
Affiliation(s)
- Qingsong Xu
- School of Chemistry and Chemical EngineeringState Key Laboratory of Metal Matrix CompositesShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Tong Huang
- School of Chemistry and Chemical EngineeringState Key Laboratory of Metal Matrix CompositesShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Shanlong Li
- School of Chemistry and Chemical EngineeringState Key Laboratory of Metal Matrix CompositesShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Ke Li
- School of Chemistry and Chemical EngineeringState Key Laboratory of Metal Matrix CompositesShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Chuanlong Li
- School of Chemistry and Chemical EngineeringState Key Laboratory of Metal Matrix CompositesShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Yannan Liu
- School of Chemistry and Chemical EngineeringState Key Laboratory of Metal Matrix CompositesShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Yuling Wang
- School of Chemistry and Chemical EngineeringState Key Laboratory of Metal Matrix CompositesShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Chunyang Yu
- School of Chemistry and Chemical EngineeringState Key Laboratory of Metal Matrix CompositesShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Yongfeng Zhou
- School of Chemistry and Chemical EngineeringState Key Laboratory of Metal Matrix CompositesShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| |
Collapse
|
15
|
Explosive dissolution and trapping of block copolymer seed crystallites. Nat Commun 2018; 9:1158. [PMID: 29559614 PMCID: PMC5861044 DOI: 10.1038/s41467-018-03528-x] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Accepted: 02/20/2018] [Indexed: 01/05/2023] Open
Abstract
Enhanced control over crystallization-driven self-assembly (CDSA) of coil-crystalline block copolymers has led to the formation of intricate structures with well-defined morphology and dimensions. While approaches to build those sophisticated structures may strongly differ from each other, they all share a key cornerstone: a polymer crystallite. Here we report a trapping technique that enables tracking of the change in length of one-dimensional (1D) polymer crystallites as they are annealed in solution at different temperatures. Using the similarities between 1D polymeric micelles and bottle-brush polymers, we developed a model explaining how the dissolving crystallites reach a critical size independent of the annealing temperature, and then explode in a cooperative process involving the remaining polymer chains of the crystallites. This model also allows us to demonstrate the role of the distribution in seed core crystallinity on the dissolution of the crystallites. The study of the dissolution of polymer crystals is a challenging task. Here the authors use crystallization-driven self-assembly of coil-crystalline block copolymers as a trapping technique to track the change in length of 1D seed crystallites during annealing.
Collapse
|
16
|
Zhang J, Kong W, Duan H. The directed self-assembly of amphiphilic diblock copolymers in selective solvents. J DISPER SCI TECHNOL 2018. [DOI: 10.1080/01932691.2017.1305907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Jun Zhang
- College of Physical Science and Technology, Xinjiang University, Urumqi, Xinjiang, China
| | - Weixin Kong
- College of Physical Science and Technology, Xinjiang University, Urumqi, Xinjiang, China
| | - Haiming Duan
- College of Physical Science and Technology, Xinjiang University, Urumqi, Xinjiang, China
| |
Collapse
|
17
|
Xu Y, Wang T, He Z, Zhou M, Yu W, Shi B, Huang K. Preparation of multifunctional hollow microporous organic nanospheres via a one-pot hyper-cross-linking mediated self-assembly strategy. Polym Chem 2018. [DOI: 10.1039/c8py00694f] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Multifunctional hollow microporous organic nanospheres (HMONs) were successfully synthesized via a one-pot hyper-cross-linking mediated self-assembly strategy.
Collapse
Affiliation(s)
- Yang Xu
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai
- P. R. China
| | - Tianqi Wang
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai
- P. R. China
| | - Zidong He
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai
- P. R. China
| | - Minghong Zhou
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai
- P. R. China
| | - Wei Yu
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai
- P. R. China
| | - Buyin Shi
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai
- P. R. China
| | - Kun Huang
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai
- P. R. China
| |
Collapse
|
18
|
Zhao L, Ling Q, Liu X, Hang C, Zhao Q, Liu F, Gu H. Multifunctional triazolylferrocenyl Janus dendron: Nanoparticle stabilizer, smart drug carrier and supramolecular nanoreactor. Appl Organomet Chem 2017. [DOI: 10.1002/aoc.4000] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Li Zhao
- Key Laboratory of Leather Chemistry and Engineering of Ministry of EducationSichuan University Chengdu 610065 China
- National Engineering Laboratory for Clean Technology of Leather ManufactureSichuan University Chengdu 610065 China
| | - Qiangjun Ling
- Key Laboratory of Leather Chemistry and Engineering of Ministry of EducationSichuan University Chengdu 610065 China
| | - Xiong Liu
- Key Laboratory of Leather Chemistry and Engineering of Ministry of EducationSichuan University Chengdu 610065 China
- National Engineering Laboratory for Clean Technology of Leather ManufactureSichuan University Chengdu 610065 China
| | - Chaodong Hang
- Key Laboratory of Leather Chemistry and Engineering of Ministry of EducationSichuan University Chengdu 610065 China
| | - Qiuxia Zhao
- Key Laboratory of Leather Chemistry and Engineering of Ministry of EducationSichuan University Chengdu 610065 China
- National Engineering Laboratory for Clean Technology of Leather ManufactureSichuan University Chengdu 610065 China
| | - Fangfei Liu
- Key Laboratory of Leather Chemistry and Engineering of Ministry of EducationSichuan University Chengdu 610065 China
- National Engineering Laboratory for Clean Technology of Leather ManufactureSichuan University Chengdu 610065 China
| | - Haibin Gu
- Key Laboratory of Leather Chemistry and Engineering of Ministry of EducationSichuan University Chengdu 610065 China
- National Engineering Laboratory for Clean Technology of Leather ManufactureSichuan University Chengdu 610065 China
| |
Collapse
|
19
|
Yu M, Wang Q, Zhang M, Deng Q, Chen D. Facile fabrication of raspberry-like composite microspheres for the construction of superhydrophobic films and applications in highly efficient oil–water separation. RSC Adv 2017. [DOI: 10.1039/c7ra07250c] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Inspired by the “lotus effect”, we proposed a facile synthetic route toward raspberry-like PS@SiO2 microspheres, which further lead to superhydrophobic surfaces.
Collapse
Affiliation(s)
- Mingguang Yu
- School of Materials Science and Energy Engineering
- Foshan University
- Foshan 528000
- China
| | - Qing Wang
- State Key Laboratory of Pulp & Paper Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Min Zhang
- School of Materials Science and Energy Engineering
- Foshan University
- Foshan 528000
- China
| | - Qianjun Deng
- School of Materials Science and Energy Engineering
- Foshan University
- Foshan 528000
- China
| | - Dongchu Chen
- School of Materials Science and Energy Engineering
- Foshan University
- Foshan 528000
- China
| |
Collapse
|
20
|
Besenius P. Controlling supramolecular polymerization through multicomponent self-assembly. ACTA ACUST UNITED AC 2016. [DOI: 10.1002/pola.28385] [Citation(s) in RCA: 101] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Pol Besenius
- Institute of Organic Chemistry, Johannes Gutenberg-Universität Mainz; Duesbergweg 10-14 Mainz 55128 Germany
| |
Collapse
|
21
|
Gonzalez-Alvarez MJ, Jia L, Guerin G, Kim KS, An Du V, Walker G, Manners I, Winnik MA. How a Small Modification of the Corona-Forming Block Redirects the Self-Assembly of Crystalline–Coil Block Copolymers in Solution. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b01616] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
| | - Lin Jia
- Department
of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Gerald Guerin
- Department
of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Kris Sanghyun Kim
- Department
of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Van An Du
- School
of Chemistry, University of Bristol, Bristol BS8 1TS, U.K
| | - Gilbert Walker
- 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
| | - Mitchell A. Winnik
- Department
of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| |
Collapse
|
22
|
Schoonen L, van Hest JCM. Compartmentalization Approaches in Soft Matter Science: From Nanoreactor Development to Organelle Mimics. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:1109-28. [PMID: 26509964 DOI: 10.1002/adma.201502389] [Citation(s) in RCA: 216] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Revised: 08/14/2015] [Indexed: 05/19/2023]
Abstract
Compartmentalization is an essential feature found in living cells to ensure that biological processes occur without being affected by undesired external influences. Over the years many scientists have designed self-assembled soft matter structures that mimic these natural catalytic compartments. The rationale behind this research is threefold. First of all, compartmentalization leads to the creation of a secluded environment for the catalytic species, which solves compatibility issues and which can improve catalyst efficiency and selectivity. Secondly, nano- and micro-compartments are constructed with the aim to obtain microenvironments that more closely mimic the cellular architecture. These biomimetic platforms are used to attain a better understanding of how cellular processes are executed. Thirdly, natural design rules are applied to create biomolecular assemblies with unusual functionality, which for example are used as artificial organelles. Here, recent developments will be discussed regarding these compartmentalized catalytic systems, with a selected number of illustrative examples to demonstrate which strategies have been followed, and to show to what extent the ambitious goals of this field of science have been reached. The focus here is on the field of soft matter science, covering the wide spectrum from polymeric assemblies to protein nanocages.
Collapse
Affiliation(s)
- Lise Schoonen
- Radboud University, Institute for Molecules and Materials, Heyendaalseweg 135, 6525, AJ, Nijmegen, The Netherlands
| | - Jan C M van Hest
- Radboud University, Institute for Molecules and Materials, Heyendaalseweg 135, 6525, AJ, Nijmegen, The Netherlands
| |
Collapse
|
23
|
Core-shell composite of hierarchical MoS2 nanosheets supported on graphitized hollow carbon microspheres for high performance lithium-ion batteries. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2015.11.047] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
24
|
Hailes RLN, Oliver AM, Gwyther J, Whittell GR, Manners I. Polyferrocenylsilanes: synthesis, properties, and applications. Chem Soc Rev 2016; 45:5358-407. [DOI: 10.1039/c6cs00155f] [Citation(s) in RCA: 221] [Impact Index Per Article: 27.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
This comprehensive review covers polyferrocenylsilanes (PFSs), a well-established, readily accessible class of main chain organosilicon metallopolymer. The focus is on the recent advances involving PFS homopolymers and block copolymers and the article covers the synthesis, properties, and applications of these fascinating materials.
Collapse
Affiliation(s)
| | | | | | | | - Ian Manners
- School of Chemistry
- University of Bristol
- Bristol
- UK
| |
Collapse
|
25
|
Yang B, Huang Q, Liu H, Zhao Y, Du J. Hairy cylinders based on a coil-comb-coil copolymer. RSC Adv 2016. [DOI: 10.1039/c6ra20862b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
We present the preparation and possible formation mechanism of hairy cylinders self-assembled from a coil-comb-coil copolymer.
Collapse
Affiliation(s)
- Bo Yang
- Department of Polymeric Materials
- School of Materials Science and Engineering
- Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education
- Tongji University
- Shanghai 201804
| | - Qiutong Huang
- Department of Polymeric Materials
- School of Materials Science and Engineering
- Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education
- Tongji University
- Shanghai 201804
| | - 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
- Soochow University
| | - 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
- Soochow University
| | - Jianzhong Du
- Department of Polymeric Materials
- School of Materials Science and Engineering
- Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education
- Tongji University
- Shanghai 201804
| |
Collapse
|
26
|
Jia L, Petretic A, Molev G, Guerin G, Manners I, Winnik MA. Hierarchical Polymer-Carbon Nanotube Hybrid Mesostructures by Crystallization-Driven Self-Assembly. ACS NANO 2015; 9:10673-10685. [PMID: 26418346 DOI: 10.1021/acsnano.5b01176] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Multistep crystallization-driven self-assembly has great potential to enable the construction of sophisticated hybrid mesostructures. During the assembly procedure, each step modifies the properties of the overall structure. Here, we demonstrate the flexibility and efficiency of this approach by preparing polymer-carbon nanotube (CNT) hybrid mesostructures. We started by growing polyferrocenyldimethylsilane (PFS) homopolymer crystals onto multiwalled CNTs. This first step facilitated the redispersion of the coated CNTs in both polar (2-propanol) and nonpolar (decane) solvents. In the second step of hybrid construction, a unimer solution of a PFS block copolymer was added into the PFS-CNT solution. The PFS coating on the CNT initiated the growth of elongated micelles, resulting in structures that resembled hairy caterpillars. PFS-b-P2VP (P2VP = poly-2-vinylpyridine) micelles were grown from the surface of PFS-CNT hybrids in 2-propanol, and PFS-b-PI (PI = polyisoprene) micelles were grown from these hybrids in decane. These micelles, by transmission electron microscopy were seen to have an unusual wavy kinked structure, very different from the uniform smooth structures normally formed by both block copolymers. For hybrids with PFS-b-PI micelles, cross-linking of the micelle coronas locked the whole structure in place and allowed us to use the partial oxidation of PFS components to grow metal nanoparticles in the core of these micelles. We finally investigated the influence of the corona-forming block used to grow the micelles on the wettability of films made from these mesostructures. Films formed with CNT hybrids grafted with PFS-b-PI micelles were superhydrophobic (contact angle, 152°). In contrast, the surface of the films was much more hydrophilic (contact angle, 54°) when they were prepared from CNT hybrids grafted with PFS-b-P2VP micelles.
Collapse
Affiliation(s)
- Lin Jia
- Department of Chemistry, University of Toronto , 80 St. George Street, Toronto, ON M5S 3H6, Canada
| | - Amy Petretic
- Department of Chemistry, University of Toronto , 80 St. George Street, Toronto, ON M5S 3H6, Canada
| | - Gregory Molev
- Department of Chemistry, University of Toronto , 80 St. George Street, Toronto, ON M5S 3H6, Canada
| | - Gerald Guerin
- Department of Chemistry, University of Toronto , 80 St. George Street, Toronto, ON M5S 3H6, Canada
| | - Ian Manners
- School of Chemistry, University of Bristol , Bristol, U.K. BS8 1TS
| | - Mitchell A Winnik
- Department of Chemistry, University of Toronto , 80 St. George Street, Toronto, ON M5S 3H6, Canada
| |
Collapse
|
27
|
Cheng C, Huang Y, Wang N, Jiang T, Hu S, Zheng B, Yuan H, Xiao D. Facile Fabrication of Mn2O3 Nanoparticle-Assembled Hierarchical Hollow Spheres and Their Sensing for Hydrogen Peroxide. ACS APPLIED MATERIALS & INTERFACES 2015; 7:9526-9533. [PMID: 25902306 DOI: 10.1021/acsami.5b00884] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
In the present work, we described the facile hydrothermal fabrication of Mn2O3 nanoparticle-assembled hierarchical hollow spheres and their application for the electrochemical determination of hydrogen peroxide (H2O2). The composition and morphology of the as-prepared samples were well characterized by powder X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS). Because of the electrochemical responses toward H2O2, a novel nonenzymatic electrochemical sensor for the H2O2 determination based on Mn2O3 hollow spheres modified glassy carbon electrode was proposed. The electrochemical properties of the modified electrode were investigated by cyclic voltammetry, electrochemical impedance spectroscopy and chronoamperometry. The modified electrode displayed distinct amperometric response to H2O2 in a wide concentration range 0.10-1276.5 μM, with a linear range of 0.10-126.5 μM and a detection limit of 0.07 μM (S/N = 3). It exhibited excellent analytical performance in terms of long-time stability, good reproducibility and acceptable anti-interference ability. In addition, it was applied for the H2O2 determination in real samples directly with acceptable accuracy and recovery, demonstrating its potential application in routine H2O2 analysis.
Collapse
Affiliation(s)
- Changming Cheng
- †College of Chemical Engineering, Sichuan University, Chengdu 610065, PR China
- ‡Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics (CAEP), Mianyang 612900, PR China
| | - Ying Huang
- †College of Chemical Engineering, Sichuan University, Chengdu 610065, PR China
| | - Ning Wang
- ‡Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics (CAEP), Mianyang 612900, PR China
| | - Tao Jiang
- ‡Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics (CAEP), Mianyang 612900, PR China
| | - Sheng Hu
- ‡Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics (CAEP), Mianyang 612900, PR China
| | - Baozhan Zheng
- §College of Chemistry, Sichuan University, Chengdu 610064, PR China
| | - Hongyan Yuan
- †College of Chemical Engineering, Sichuan University, Chengdu 610065, PR China
| | - Dan Xiao
- †College of Chemical Engineering, Sichuan University, Chengdu 610065, PR China
- §College of Chemistry, Sichuan University, Chengdu 610064, PR China
| |
Collapse
|
28
|
Legros C, De Pauw-Gillet MC, Tam KC, Taton D, Lecommandoux S. Crystallisation-driven self-assembly of poly(2-isopropyl-2-oxazoline)-block-poly(2-methyl-2-oxazoline) above the LCST. SOFT MATTER 2015; 11:3354-9. [PMID: 25793873 DOI: 10.1039/c5sm00313j] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
The solution behaviour in water of a polyoxazoline-type block copolymer, namely poly(2-isopropyl-2-oxazoline)-block-poly(2-methyl-2-oxazoline), denoted as P(iPrOx-b-MeOx), above the lower critical solution temperature (LCST) of the PiPrOx block was exploited to induce a temporary or permanent self-assembly. Spherical micelles were first obtained and could be disassembled in a reversible manner when kept for a short period of time (i.e. t < 90 min) above the LCST, and cooled down to room temperature. In contrast, annealing the copolymer solution for more than 90 min at 65 °C induced the crystallisation of the PiPrOx block, as evidenced by wide angle X-ray scattering (WAXS) experiments. This crystallisation-driven self-assembly phenomenon resulted in different morphologies, including spherical and distorted crystallised micelles and micron-size fibers, their relative proportion varies with the annealing time. Formation of micron-size range fiber-like structures might be explained by the re-organization of parent crystallised micelles. The crystal structure, as determined by WAXS, appeared to be identical to that of the PiPrOx homopolymer.
Collapse
Affiliation(s)
- Camille Legros
- Université de Bordeaux/IPB, ENSCBP, 16 Avenue Pey Berland, 33607 Pessac Cedex, France.
| | | | | | | | | |
Collapse
|
29
|
|
30
|
Wang X, Shi J, Zhang S, Wu H, Jiang Z, Yang C, Wang Y, Tang L, Yan A. MOF-templated rough, ultrathin inorganic microcapsules for enzyme immobilization. J Mater Chem B 2015; 3:6587-6598. [DOI: 10.1039/c5tb00870k] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Enzyme-containing ultrathin titania microcapsules with rough surfaces were prepared by using MOF as a hard template to mediate the hierarchical structures of the microcapsule shell.
Collapse
Affiliation(s)
- Xiaoli Wang
- Key Laboratory for Green Chemical Technology of Ministry of Education
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- People's Republic of China
| | - Jiafu Shi
- Key Laboratory for Green Chemical Technology of Ministry of Education
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- People's Republic of China
| | - Shaohua Zhang
- Key Laboratory for Green Chemical Technology of Ministry of Education
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- People's Republic of China
| | - Hong Wu
- Key Laboratory for Green Chemical Technology of Ministry of Education
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- People's Republic of China
| | - Zhongyi Jiang
- Key Laboratory for Green Chemical Technology of Ministry of Education
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- People's Republic of China
| | - Chen Yang
- Key Laboratory for Green Chemical Technology of Ministry of Education
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- People's Republic of China
| | - Yuxin Wang
- Key Laboratory for Green Chemical Technology of Ministry of Education
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- People's Republic of China
| | - Lei Tang
- Key Laboratory for Green Chemical Technology of Ministry of Education
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- People's Republic of China
| | - Anfu Yan
- Key Laboratory for Green Chemical Technology of Ministry of Education
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- People's Republic of China
| |
Collapse
|