1
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Wang X, Wang YQ, Wu DC. Facile Fabrication of Hyperbranched Polyacetal Quaternary Ammonium with pH-Responsive curcumin Release for Synergistic Antibacterial Activity. CHINESE JOURNAL OF POLYMER SCIENCE 2022. [DOI: 10.1007/s10118-022-2884-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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2
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Hu P, Li J, Jin J, Lin X, Tan X. Highly Sensitive Photopolymer for Holographic Data Storage Containing Methacryl Polyhedral Oligomeric Silsesquioxane. ACS APPLIED MATERIALS & INTERFACES 2022; 14:21544-21554. [PMID: 35486469 PMCID: PMC9100513 DOI: 10.1021/acsami.2c04011] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 04/22/2022] [Indexed: 06/14/2023]
Abstract
Herein, via introducing eight methacryl polyhedral oligomeric silsesquioxane (Ma-POSS), we dramatically enhance the holographic performance of phenanthraquinone-doped poly(methyl methacrylate) (PQ/PMMA) photopolymer with excellent characteristics of high sensitivity, high diffraction efficiency, and neglectable volume shrinkage for holographic data storage, the photosensitivity, diffraction efficiency, and volume shrinkage reaching 1.47 cm/J, ∼75%, and ∼0.09%, respectively. Ma-POSS here dramatically enhances the photosensitivity ∼5.5 times, diffraction efficiency more than 50%, and suppressed the volume shrinkage over 4 times. Further analysis reveals that Ma-POSS obviously increased the molecular weight by grafting PMMA to be a star-shaped macromolecule. And the residual C═C of POSS-PMMA dramatically increased the photosensitivity. Moreover, the star-shaped POSS-PMMA acting as a plasticizer dramatically enhances the mechanical properties and so reduces the photoinduced volume shrinkage of PQ/PMMA. Finally, by the use of the POSS-PMMA/PQ in a collinear holography system, it appeared to be promising for a fast but low bit error rate in holographic information storage. The current study thence has not only successfully synthesized photopolymer materials with potential for highly sensitive holographic storage applications but also investigated the microphysical mechanism of the impact of Ma-POSS on the holographic properties of PQ/PMMA photopolymer and clarified the thermal- and photoreaction processes of the POSS-PMMA/PQ photopolymer.
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Affiliation(s)
- Po Hu
- College
of Photonic and Electronic Engineering, Fujian Normal University, Fuzhou 350117, China
- Henan
Provincial Key Laboratory of intelligent lighting, Huanghuai University, Zhumadian 463000, China
| | - Jinhong Li
- College
of Photonic and Electronic Engineering, Fujian Normal University, Fuzhou 350117, China
| | - Junchao Jin
- College
of Photonic and Electronic Engineering, Fujian Normal University, Fuzhou 350117, China
| | - Xiao Lin
- College
of Photonic and Electronic Engineering, Fujian Normal University, Fuzhou 350117, China
| | - Xiaodi Tan
- Information
Photonics Research Center, Key Laboratory of Optoelectronic Science
and for Medicine of Ministry of Education, Fujian Provincial Key Laboratory
of Photonics Technology, Fujian Provincial Engineering Technology
Research Center of Photoelectric Sensing Application, Fujian Normal University, Fuzhou 350117, China
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3
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Kowalczyk S, Dębowski M, Iuliano A, Brzeski S, Plichta A. Synthesis of (Hyper)Branched Monohydroxyl Alkoxysilane Oligomers toward Silanized Urethane Prepolymers. Molecules 2022; 27:molecules27092790. [PMID: 35566135 PMCID: PMC9105832 DOI: 10.3390/molecules27092790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 04/20/2022] [Accepted: 04/25/2022] [Indexed: 12/10/2022] Open
Abstract
The aim of this work was the synthesis of (hyper)branched oligomers based on trialkoxysilane in various conditions and further application of them in order to modify the urethane prepolymers. Hydroxyl-terminated trialkoxysilane was used as a monomer for homo-condensation. It was obtained by reaction of 3-aminopropyl trialkoxysilane (APTES) with ethylene carbonate (EC). The reaction was based on the attack of amine at the carbonyl carbon atom followed by ring opening of the carbonate to give a urethane (carbamate) product. The next step was the condensation via substitution of ethoxy groups on silicon atom with the terminal hydroxyalkyl groups present in the primary product with the evolution of ethanol. Accordingly, the impact of temperature and type of catalyst on process efficiency was investigated. A quantitative analysis of reaction progress and products of the conversion of EC together with ethanol evolution was conducted by means of gas chromatography, which allowed us to determine the formation of monomeric product and, indirectly, of oligomeric products. It was found that at room temperature after 24 h, the majority of the monomeric product was isolated, whereas at elevated temperature in the presence of Ti-based catalyst, further condensation of the monomer into branched oligomers was preferred, and, moreover, the application of vacuum intensified that process. The obtained products were structurally characterized by 1H and 29Si NMR, MALDI-ToF and Gel Permeation Chromatography. Finally, two different alkoxysilane products, monomeric and oligomeric, were applied for modification of urethane prepolymer, forming silanized one (SPUR). The influence of the silanizing agent on the mechanical and thermal properties of the moisture-cured products was shown before and after additional conditioning in water.
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4
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Muhammad K, Zhao J, Gao B, Feng Y. Polymeric nano-carriers for on-demand delivery of genes via specific responses to stimuli. J Mater Chem B 2021; 8:9621-9641. [PMID: 32955058 DOI: 10.1039/d0tb01675f] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Polymeric nano-carriers have been developed as a most capable and feasible technology platform for gene therapy. As vehicles, polymeric nano-carriers are obliged to possess high gene loading capability, low immunogenicity, safety, and the ability to transfer various genetic materials into specific sites of target cells to express therapeutic proteins or block a process of gene expression. To this end, various types of polymeric nano-carriers have been prepared to release genes in response to stimuli such as pH, redox, enzymes, light and temperature. These stimulus-responsive nano-carriers exhibit high gene transfection efficiency and low cytotoxicity. In particular, dual- and multi-stimulus-responsive polymeric nano-carriers can respond to a combination of signals. Markedly, these combined responses take place either simultaneously or in a sequential manner. These dual-stimulus-responsive polymeric nano-carriers can control gene delivery with high gene transfection both in vitro and in vivo. In this review paper, we highlight the recent exciting developments in stimulus-responsive polymeric nano-carriers for gene delivery applications.
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Affiliation(s)
- Khan Muhammad
- School of Chemical Engineering and Technology, Tianjin University, Yaguan Road 135, Tianjin 300350, P. R. China.
| | - Jing Zhao
- School of Chemical Engineering and Technology, Tianjin University, Yaguan Road 135, Tianjin 300350, P. R. China.
| | - Bin Gao
- School of Chemical Engineering and Technology, Tianjin University, Yaguan Road 135, Tianjin 300350, P. R. China.
| | - Yakai Feng
- School of Chemical Engineering and Technology, Tianjin University, Yaguan Road 135, Tianjin 300350, P. R. China. and Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin 300072, P. R. China and Collaborative Innovation Center of Chemical Science and Chemical Engineering (Tianjin), Tianjin 300350, P. R. China
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5
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Fan L, Wang X, Wu D. Polyhedral Oligomeric Silsesquioxanes (
POSS
)‐based Hybrid Materials: Molecular Design, Solution
Self‐Assembly
and Biomedical Applications. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202000536] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Linfeng Fan
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics & Chemistry, Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Xing Wang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics & Chemistry, Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Decheng Wu
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics & Chemistry, Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
- Department of Biomedical Engineering, Southern University of Science and Technology Shenzhen Guangdong 518055 China
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6
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Hyperbranched Polycarbosiloxanes: Synthesis by Piers-Rubinsztajn Reaction and Application as Precursors to Magnetoceramics. Polymers (Basel) 2020; 12:polym12030672. [PMID: 32192198 PMCID: PMC7183318 DOI: 10.3390/polym12030672] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Revised: 03/14/2020] [Accepted: 03/16/2020] [Indexed: 01/10/2023] Open
Abstract
Silicon-containing hyperbranched polymers (Si-HBPs) have drawn much attention due to their promising applications. However, the construction of Si-HBPs, especially those containing functional aromatic units in the branched backbones by the simple and efficient Piers-Rubinsztajn (P–R) reaction, has been rarely developed. Herein, a series of novel hyperbranched polycarbosiloxanes were prepared by the P–R reactions of methyl-, or phenyl-triethoxylsilane and three Si–H containing aromatic monomers, including 1,4-bis(dimethylsilyl)benzene, 4,4′-bis(dimethylsilyl)-1,1′-biphenyl and 1,1′-bis(dimethylsilyl)ferrocene, using B(C6F5)3 as the catalyst for 0.5 h at room temperature. Their structures were fully characterized by Fourier transform infrared spectroscopy, 1H NMR, 13C NMR, and 29Si NMR. The molecular weights were determined by gel permeation chromatography. The degrees of branching of these polymers were 0.69–0.89, which were calculated based on the quantitative 29Si NMR spectroscopy. For applications, the ferrocene-linked Si-HBP can be used as precursors to produce functional ceramics with good magnetizability after pyrolysis at elevated temperature.
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Bao W, Lyu J, Li C, Zhang J, Sun T, Wang X, Zhou J, Li D. Fabrication of Customized Nanogel Carriers From a UV-Triggered Dynamic Self-Assembly Strategy. Front Chem 2019; 7:769. [PMID: 31781547 PMCID: PMC6857700 DOI: 10.3389/fchem.2019.00769] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2019] [Accepted: 10/24/2019] [Indexed: 11/26/2022] Open
Abstract
Recent advances in self-assembled nanogel carriers have allowed precise design of hierarchical structures by a low-cost solution-phase approach. Typically, photochemical strategy on the tailor of morphology and dimension has emerged as a powerful tool, because light-trigger has exceptional advantages of an instant "on/off" function and spatiotemporal precision at arbitrary time. Herein, we report a tunable manipulation of sequentially morphological transition via a "living" thiol-disulfide exchange reaction from a UV-tailored hierarchical self-assembly strategy. By varying the irradiation time, the photochemical method can easily fabricate and guide a series of attractively architectural evolution in dilute aqueous solutions, by which the improving hydrophobicity and sensitive redox-responsiveness endowed these disulfide-linked nanoparticles with remarkable capacities of abundant encapsulation, effective separation, and controlled release of hydrophobic cargoes. Notably, once the exchange reaction is suspended at any point of time by removing the UV lamp, these active sites within the nanogel carriers are instantaneous deactivated and the correspondingly structural transformations are also not conducted any more. However, if the stable inert sites are reactivated as needed by turning on the UV light, the interrupting morphology evolution can continue its previous steps, which may provide a simple and novel approach to fabricating the desired self-assemblies in solutions. With regard to this advanced functionality, various nanogel carriers with customizable structures and properties have been yielded and screened for cancer therapy. Thus, this "living" controlled self-assembled method to program morphology evolution in situ is a universal strategy that will pave novel pathways for creating sequential shape-shifting and size-growing nanostructures and constructing uniform nanoscopic functional entities for advanced bio-applications.
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Affiliation(s)
- Wuren Bao
- School of Nursing, Inner Mongolia University for Nationalities, Tongliao, China
| | - Jieran Lyu
- Clinical Medicine Academy of Shandong First Medical University, Tai′an, China
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, China
| | - Chunlin Li
- The 8th Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Jifeng Zhang
- Department of Orthopedic Surgery, Tongliao City Hospital, Tongliao, China
| | - Tunan Sun
- The 8th Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Xing Wang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Jin Zhou
- The 8th Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Dawei Li
- The 8th Medical Center of Chinese PLA General Hospital, Beijing, China
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8
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9
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Zhang J, Luo Z, Wang W, Yang Y, Li D, Ma Y. One-pot synthesis of bio-functionally water-soluble POSS derivatives via efficient click chemistry methodology. REACT FUNCT POLYM 2019. [DOI: 10.1016/j.reactfunctpolym.2019.04.013] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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10
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Jia L, Ma J, Gao D, Tait WRT, Sun L. A star-shaped POSS-containing polymer for cleaner leather processing. JOURNAL OF HAZARDOUS MATERIALS 2019; 361:305-311. [PMID: 30216859 DOI: 10.1016/j.jhazmat.2018.08.093] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Revised: 08/22/2018] [Accepted: 08/29/2018] [Indexed: 06/08/2023]
Abstract
A water-based silsesquioxane (POSS)-containing polymer, POSS-PAA, was synthesized by using octavinyl-POSS (V-POSS) and acrylic acid (AA) via interfacial polymerization. The TEM of POSS-PAA showed that the polymer formed a core-shell structure in aqueous solution and was well-dispersed. The star-shaped POSS-PAA and linear PAA were both tanned with 3.5% chromium tanning agent, and leather hide was tanned with 3.5% chromium tanning agent as a control. The results showed that the shrinkage temperature of wet-blue leather treated by POSS-PAA was increased by 3.5 °C than that of the control. The thickening rate of the POSS-PAA treated wet-blue leather samples was increased by 21% and 96% than the linear PAA-treated leather and the control leather, respectively. The EDS results suggested that the POSS-PAA pre-treated leather had a higher chromium content than the others, and the chromium distribution from the leather flesh side to the grain side was uniform. Moreover, the Cr2O3 content in both the POSS-PAA and the PAA pre-treated tanning waste water was reduced by about 50%, compared to the control waste. The COD and BOD of the POSS-PAA pre-tanning waste were decreased compared to the others. Therefore, POSS-PAA appeared to be promising for promoting the development of cleaner leather production.
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Affiliation(s)
- Lu Jia
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xi'an, 710021, China; Polymer Program, Institute of Materials Science and Department of Chemical & Biomolecular Engineering, University of Connecticut, Storrs, CT, 06269, USA
| | - Jianzhong Ma
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xi'an, 710021, China.
| | - Dangge Gao
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xi'an, 710021, China.
| | - William R T Tait
- Polymer Program, Institute of Materials Science and Department of Chemical & Biomolecular Engineering, University of Connecticut, Storrs, CT, 06269, USA
| | - Luyi Sun
- Polymer Program, Institute of Materials Science and Department of Chemical & Biomolecular Engineering, University of Connecticut, Storrs, CT, 06269, USA
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11
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Fan L, Wang X, Cao Q, Yang Y, Wu D. POSS-based supramolecular amphiphilic zwitterionic complexes for drug delivery. Biomater Sci 2019; 7:1984-1994. [DOI: 10.1039/c9bm00125e] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
A novel POSS-based supramolecular amphiphilic zwitterionic polymer exhibited excellent stability in both extracellular and intracellular pH environments and well encapsulated the antitumor drug DOX, and has the potential to improve smart drug delivery and enhance antitumor efficacy for biomedical applications.
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Affiliation(s)
- Linfeng Fan
- Beijing National Laboratory for Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Xing Wang
- Beijing National Laboratory for Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Qingchen Cao
- Beijing National Laboratory for Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Yanyu Yang
- Beijing National Laboratory for Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Decheng Wu
- Beijing National Laboratory for Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
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12
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Gao B, Zhang Q, Wang X, Wang M, Ren XK, Guo J, Xia S, Zhang W, Feng Y. A “self-accelerating endosomal escape” siRNA delivery nanosystem for significantly suppressing hyperplasia via blocking the ERK2 pathway. Biomater Sci 2019; 7:3307-3319. [DOI: 10.1039/c9bm00451c] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Highly efficient ERK2 silencing in VSMCs via a “self-accelerating endosomal escape” siRNA transport nanosystem.
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Affiliation(s)
- Bin Gao
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300350
- China
- Collaborative Innovation Center of Chemical Science and Chemical Engineering (Tianjin)
| | - Qiaoping Zhang
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300350
- China
- Collaborative Innovation Center of Chemical Science and Chemical Engineering (Tianjin)
| | - Xiaoyu Wang
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300350
- China
- Collaborative Innovation Center of Chemical Science and Chemical Engineering (Tianjin)
| | - Meiyu Wang
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300350
- China
- Collaborative Innovation Center of Chemical Science and Chemical Engineering (Tianjin)
| | - Xiang-kui Ren
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300350
- China
- Collaborative Innovation Center of Chemical Science and Chemical Engineering (Tianjin)
| | - Jintang Guo
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300350
- China
- Collaborative Innovation Center of Chemical Science and Chemical Engineering (Tianjin)
| | - Shihai Xia
- Department of Hepatopancreatobiliary and Splenic Medicine
- Affiliated Hospital
- Logistics University of People's Armed Police Force
- Tianjin 300162
- China
| | - Wencheng Zhang
- Department of Physiology and Pathophysiology
- Logistics University of Chinese People's Armed Police Force
- Tianjin 300309
- China
| | - Yakai Feng
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300350
- China
- Collaborative Innovation Center of Chemical Science and Chemical Engineering (Tianjin)
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13
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Wang X, Gao P, Yang Y, Guo H, Wu D. Dynamic and programmable morphology and size evolution via a living hierarchical self-assembly strategy. Nat Commun 2018; 9:2772. [PMID: 30018381 PMCID: PMC6050331 DOI: 10.1038/s41467-018-05142-3] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Accepted: 06/11/2018] [Indexed: 01/14/2023] Open
Abstract
Recent advances in the preparation of shape-shifting and size-growing nanostructures are hot topics in development of nanoscience, because many intelligent functions are always relied on their shape and dimension. Here we report a tunable manipulation of sequential self-assembled transformation in situ via a hierarchical assembly strategy based on a living thiol-disulfide exchange reaction. By tailoring the external stimuli, the reactive points can be generated at the ends of initially unimolecular micelles, which subsequently drive the pre-assemblies to periodically proceed into the hierarchically micellar connection, axial growth, bending, and cyclization processes from nanoscopic assemblies to macroscopic particles. Of particular interest would be systems that acquired the shape control and size adjustment of self-assemblies after termination or reactivation of disulfide reshuffling reaction by regulating external stimuli whenever needed. Such a hierarchical strategy for self-assembled evolution is universally applicable not only for other disulfide-linked dendritic polymers but also for exploitation of biological applications.
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Affiliation(s)
- Xing Wang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics & Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Peiyuan Gao
- Pacific Northwest National Laboratory, Richland, 99352, WA, USA
| | - Yanyu Yang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics & Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- College of Materials Science and Engineering, Zhengzhou University, Zhengzhou, Henan, 450001, China
| | - Hongxia Guo
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics & Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Decheng Wu
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics & Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.
- University of Chinese Academy of Sciences, Beijing, 100049, China.
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14
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Yuasa S, Imoto H, Naka K. Synthesis and properties of hyperbranched polymers by polymerization of an AB3-type incompletely condensed cage silsesquioxane (IC-POSS) monomer. Polym J 2018. [DOI: 10.1038/s41428-018-0071-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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15
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16
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Tang G, Wang X, Li D, Ma Y, Wu D. Fabrication of POSS-embedded supramolecular hyperbranched polymers with multi-responsive morphology transitions. Polym Chem 2018. [DOI: 10.1039/c8py01271g] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
We demonstrate a simple approach to prepare POSS-embedded supramolecular hyperbranched polymers with multiple stimulus morphology transitions driven by triple supramolecular driving forces in selective solvents.
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Affiliation(s)
- Guoke Tang
- The First School of Clinical Medicine
- Southern Medical University
- Guangzhou 510515
- China
- Department of Spinal Surgery
| | - Xing Wang
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory of Polymer Physics & Chemistry
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Dawei Li
- Department of Orthopaedics
- The 309th Hospital of the PLA
- Beijing 100091
- China
| | - Yuanzheng Ma
- The First School of Clinical Medicine
- Southern Medical University
- Guangzhou 510515
- China
- Department of Orthopaedics
| | - Decheng Wu
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory of Polymer Physics & Chemistry
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
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17
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Jin J, Tang M, Zhang Z, Zhou K, Gao Y, Zheng ZG, Zhang W. Synthesis of POSS-functionalized liquid crystalline block copolymers via RAFT polymerization for stabilizing blue phase helical soft superstructures. Polym Chem 2018. [DOI: 10.1039/c8py00136g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A study of the phase transition behaviors of blue phase liquid crystals containing different amounts of POSS-functionalized LC BCPs.
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Affiliation(s)
- Jianqiu Jin
- Shanghai Key Laboratory of Functional Materials Chemistry
- Department of Physics
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Mingjie Tang
- Shanghai Key Laboratory of Functional Materials Chemistry
- Department of Physics
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Zhenghe Zhang
- Shanghai Key Laboratory of Functional Materials Chemistry
- Department of Physics
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Kang Zhou
- Shanghai Key Laboratory of Functional Materials Chemistry
- Department of Physics
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Yun Gao
- Shanghai Key Laboratory of Functional Materials Chemistry
- Department of Physics
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Zhi-Gang Zheng
- Shanghai Key Laboratory of Functional Materials Chemistry
- Department of Physics
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Weian Zhang
- Shanghai Key Laboratory of Functional Materials Chemistry
- Department of Physics
- East China University of Science and Technology
- Shanghai 200237
- China
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18
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Wang X, Yang Y, Fan L, Yang F, Wu D. POSS-embedded supramolecular hyperbranched polymers constructed from a 1→7 branching monomer with controllable morphology transitions. Sci China Chem 2017. [DOI: 10.1007/s11426-017-9168-3] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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19
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Controlled cross-linking strategy for formation of hydrogels, microgels and nanogels. CHINESE JOURNAL OF POLYMER SCIENCE 2017. [DOI: 10.1007/s10118-018-2061-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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20
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Zhang W, Chu Y, Mu G, Eghtesadi SA, Liu Y, Zhou Z, Lu X, Kashfipour MA, Lillard RS, Yue K, Liu T, Cheng SZD. Rationally Controlling the Self-Assembly Behavior of Triarmed POSS–Organic Hybrid Macromolecules: From Giant Surfactants to Macroions. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b00963] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
| | | | | | | | | | | | | | | | | | - Kan Yue
- South
China Advanced Institute for Soft Matter Science and Technology, South China University of Technology, Guangzhou 510640, China
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21
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Wang X, Yang Y, Yang F, Shen H, Wu D. pH-triggered decomposition of polymeric fluorescent vesicles to induce growth of tetraphenylethylene nanoparticles for long-term live cell imaging. POLYMER 2017. [DOI: 10.1016/j.polymer.2017.04.064] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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22
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Zhang P, Zhang Z, Jiang X, Rui L, Gao Y, Zhang W. Unimolecular micelles from POSS-based star-shaped block copolymers for photodynamic therapy. POLYMER 2017. [DOI: 10.1016/j.polymer.2017.04.063] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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23
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Wang X, Wang J, Yang Y, Yang F, Wu D. Fabrication of multi-stimuli responsive supramolecular hydrogels based on host–guest inclusion complexation of a tadpole-shaped cyclodextrin derivative with the azobenzene dimer. Polym Chem 2017. [DOI: 10.1039/c7py00698e] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Multi-responsive supramolecular hydrogels, based on host–guest complexation of tadpole-shaped cyclodextrin with the azobenzene dimer, possess reversible sol–gel transition behaviors and better biocompatibility.
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Affiliation(s)
- Xing Wang
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory of Polymer Physics & Chemistry
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Juan Wang
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory of Polymer Physics & Chemistry
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Yanyu Yang
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory of Polymer Physics & Chemistry
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Fei Yang
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory of Polymer Physics & Chemistry
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Decheng Wu
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory of Polymer Physics & Chemistry
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
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24
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Zhang Z, Xue Y, Zhang P, Müller AHE, Zhang W. Hollow Polymeric Capsules from POSS-Based Block Copolymer for Photodynamic Therapy. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b02414] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Zhenghe Zhang
- Shanghai
Key Laboratory of Functional Materials Chemistry, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
| | - Yudong Xue
- Shanghai
Key Laboratory of Functional Materials Chemistry, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
| | - Pengcheng Zhang
- Shanghai
Key Laboratory of Functional Materials Chemistry, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
| | - Axel H. E. Müller
- Institut
für Organische Chemie, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
| | - Weian Zhang
- Shanghai
Key Laboratory of Functional Materials Chemistry, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
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25
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Kong J, Wei Y, Lu X, He C. Cross-linking Si
x
O
y
Cages with Carbon by Thermally Annealing Polyhedral Oligomeric Silsesquioxane: Structures, Morphology, and Electrochemical Properties as Lithium-Ion Battery Anodes. ChemElectroChem 2016. [DOI: 10.1002/celc.201600486] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Junhua Kong
- Department of Materials Science and Engineering, Faculty of Engineering; National University of Singapore; 9 Engineering Drive 1 Singapore 117575 Singapore
- Institute of Materials Research and Engineering, a-star; 2 Fusionopolis Way Singapore 138634 Singapore
| | - Yuefan Wei
- School of Mechanical and Aerospace Engineering; Nanyang Technological University; 50 Nanyang Avenue Singapore 639798 Singapore
| | - Xuehong Lu
- School of Materials Science and Engineering; Nanyang Technological University; 50 Nanyang Avenue Singapore 639798 Singapore
| | - Chaobin He
- Department of Materials Science and Engineering, Faculty of Engineering; National University of Singapore; 9 Engineering Drive 1 Singapore 117575 Singapore
- Institute of Materials Research and Engineering, a-star; 2 Fusionopolis Way Singapore 138634 Singapore
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26
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Wang X, Yang Y, Zhuang Y, Gao P, Yang F, Shen H, Guo H, Wu D. Fabrication of pH-Responsive Nanoparticles with an AIE Feature for Imaging Intracellular Drug Delivery. Biomacromolecules 2016; 17:2920-9. [DOI: 10.1021/acs.biomac.6b00744] [Citation(s) in RCA: 105] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Xing Wang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics & Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Yanyu Yang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics & Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Yaping Zhuang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics & Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Peiyuan Gao
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics & Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Fei Yang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics & Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Hong Shen
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics & Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Hongxia Guo
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics & Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Decheng Wu
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics & Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, P.R. China
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27
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Haldar U, Roy SG, De P. POSS tethered hybrid “inimer” derived hyperbranched and star-shaped polymers via SCVP-RAFT technique. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.05.027] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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28
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Star amphiphilic supramolecular copolymer based on host–guest interaction for electrochemical controlled drug delivery. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.02.023] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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29
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Liu SG, Li N, Ling Y, Kang BH, Geng S, Li NB, Luo HQ. pH-Mediated Fluorescent Polymer Particles and Gel from Hyperbranched Polyethylenimine and the Mechanism of Intrinsic Fluorescence. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:1881-9. [PMID: 26829461 DOI: 10.1021/acs.langmuir.6b00201] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
We report that fluorescence properties and morphology of hyperbranched polyethylenimine (hPEI) cross-linked with formaldehyde are highly dependent on the pH values of the cross-linking reaction. Under acidic and neutral conditions, water-soluble fluorescent copolymer particles (CPs) were produced. However, under basic conditions, white gels with weak fluorescence emission would be obtained. The water-soluble hPEI-formaldehyde (hPEI-F) CPs show strong intrinsic fluorescence without the conjugation to any classical fluorescent agents. By the combination of spectroscopy and microscopy techniques, the mechanism of fluorescence emission was discussed. We propose that the intrinsic fluorescence originates from the formation of a Schiff base in the cross-linking process between hPEI and formaldehyde. Schiff base bonds are the fluorescence-emitting moieties, and the compact structure of hPEI-F CPs plays an important role in their strong fluorescence emission. The exploration on fluorescence mechanism may provide a new strategy to prepare fluorescent polymer particles. In addition, the investigation shows that the hPEI-F CPs hold potential as a fluorescent probe for the detection of copper ions in aqueous media.
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Affiliation(s)
- Shi Gang Liu
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), School of Chemistry and Chemical Engineering, Southwest University , Chongqing 400715, P. R. China
| | - Na Li
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), School of Chemistry and Chemical Engineering, Southwest University , Chongqing 400715, P. R. China
| | - Yu Ling
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), School of Chemistry and Chemical Engineering, Southwest University , Chongqing 400715, P. R. China
| | - Bei Hua Kang
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), School of Chemistry and Chemical Engineering, Southwest University , Chongqing 400715, P. R. China
| | - Shuo Geng
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), School of Chemistry and Chemical Engineering, Southwest University , Chongqing 400715, P. R. China
| | - Nian Bing Li
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), School of Chemistry and Chemical Engineering, Southwest University , Chongqing 400715, P. R. China
| | - Hong Qun Luo
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), School of Chemistry and Chemical Engineering, Southwest University , Chongqing 400715, P. R. China
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30
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Wang X, Yang Y, Zuo Y, Yang F, Shen H, Wu D. Facile creation of FRET systems from a pH-responsive AIE fluorescent vesicle. Chem Commun (Camb) 2016; 52:5320-3. [DOI: 10.1039/c6cc01706a] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
We demonstrate a facile approach to constructing aggregation induced emission (AIE) fluorescent vesicles for creation of FRET systems.
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Affiliation(s)
- Xing Wang
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory of Polymer Physics & Chemistry
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Yanyu Yang
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory of Polymer Physics & Chemistry
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Yunfei Zuo
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory of Polymer Physics & Chemistry
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Fei Yang
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory of Polymer Physics & Chemistry
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Hong Shen
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory of Polymer Physics & Chemistry
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Decheng Wu
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory of Polymer Physics & Chemistry
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
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31
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Wang J, Wang X, Yang F, Shen H, You Y, Wu D. Effect of Topological Structures on the Self-Assembly Behavior of Supramolecular Amphiphiles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:13834-13841. [PMID: 26632872 DOI: 10.1021/acs.langmuir.5b03823] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Three types of azobenzene-based telechelic guest polymers, PEG-azo, azo-PEG-azo, and PEG-azo4, were synthesized by a facile method. Subsequently, a series supramolecular amphiphiles with three distinct topological structures (hemitelechelic, ditelechelic, and quadritelechelic) were constructed through coupling with host polymer β-cyclodextrin-poly(l-lactide) (β-CD-PLLA) by combined host-guest complexation. Research on the self-assembly behavior of these amphiphiles demonstrated that the variation in self-assembly was tuned by the synergistic interaction of hydrophilicity and the curvature of the polymer chains, and very importantly, the topological structure of amphiphiles demonstrated effective control of the self-assembly behavior.
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Affiliation(s)
- Juan Wang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics & Chemistry, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, P. R. China
| | - Xing Wang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics & Chemistry, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, P. R. China
| | - Fei Yang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics & Chemistry, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, P. R. China
| | - Hong Shen
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics & Chemistry, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, P. R. China
| | - Yezi You
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China , Hefei 230026, Anhui, P. R. China
| | - Decheng Wu
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics & Chemistry, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, P. R. China
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32
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Wang X, Yang Y, Gao P, Yang F, Shen H, Guo H, Wu D. Synthesis, Self-Assembly, and Photoresponsive Behavior of Tadpole-Shaped Azobenzene Polymers. ACS Macro Lett 2015; 4:1321-1326. [PMID: 35614776 DOI: 10.1021/acsmacrolett.5b00698] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Herein, we report a feasible method to prepare a tadpole-shaped PEG-POSS-(Azo)7 polymer. The polymer self-assembled into a large vesicle in aqueous solution, undergoing reversible smooth-curling transformation responsive to UV and dark conditions. Incorporating POSS units into the azopolymer furnished quick trans-cis isomerization along a cubic orientation. The orientational isomerization formed some pores on the vesicular membrane and endowed the highly sensitive photoresponsive property. Encapsulation of various fluorescent dyes affected the hydrophilic/hydrophobic ratio of self-assemblies, causing their morphological transition from vesicles to micelles. Response to UV irradiation, the quick trans-cis isomerization resulted in rapid release of the encapsulated dyes. The intriguing photoresponsive property renders this kind of tadpole-shaped POSS hybrid azopolymer a potential for application in controlled release of drug.
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Affiliation(s)
- Xing Wang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics & Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Yanyu Yang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics & Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Peiyuan Gao
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics & Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Fei Yang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics & Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Hong Shen
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics & Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Hongxia Guo
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics & Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Decheng Wu
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics & Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
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33
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Wu Q, Wang X, Liao C, Wei Q, Wang Q. Microgel coating of magnetic nanoparticles via bienzyme-mediated free-radical polymerization for colorimetric detection of glucose. NANOSCALE 2015; 7:16578-16582. [PMID: 26412343 DOI: 10.1039/c5nr05716g] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
This study describes a new strategy for the fabrication of magnetic core-shell microgels by free-radical polymerization triggered by the cascade reaction of glucose oxidase (GOx) and horseradish peroxidase (HRP). The mild polymerization around the interface of the magnetic nanoparticles permits the mild coating of the microgel layer with excellent characteristics for various applications in biocatalysis and medical diagnostics, as well as in clinical fields. The immobilized bienzyme within the microgel has a largely retained activity relative to the non-immobilized one. The confining effect of the microgel and the well designed distance between the two enzymes can benefit the diffusion of intermediates to the HRP active site. The final microgels can be incontestably employed as sensitive biosensors for colorimetric glucose detection.
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Affiliation(s)
- Qing Wu
- Department of Chemistry and Advanced Research Institute, Tongji University, Shanghai 200092, China.
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34
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Cai J, Lv C, Watanabe A. Facile Preparation of Hierarchical Structures Using Crystallization-Kinetics Driven Self-Assembly. ACS APPLIED MATERIALS & INTERFACES 2015; 7:18697-18706. [PMID: 26247223 DOI: 10.1021/acsami.5b05177] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Hierarchical structures (HSs) constructed by nanoparticle-based building blocks possess not only the properties of the primary building blocks but also collective properties of the assemblies. Here we report the facile preparation of hierarchical Ag nanoparticles/polyhedral oligomeric silsequioxane molecule (POSS) hybrid branched structures within tens of seconds by using spin-coating and doctor-blade methods. An assembly mechanism mainly controlled by POSS-crystallization kinetics and space resistance of Ag nanoparticles toward the diffusion of POSS molecules was tentatively proposed. It was demonstrated as a universal method for the preparation of hierarchical hybrid branched structures on arbitrary substrates, as well as by using other different POSS and inorganic nanoparticles. As a demonstration, Ag hierarchical structures obtained by heat treatment exhibit excellent SERS performance with enhancement factors as high as on the order of 10(7), making them promising sensors for the detection of trace amount of analyte adsorbed on the surface. Two-dimensional SERS mapping was also demonstrated by using a direct imaging system with high mapping speed and high resolution. Moreover, the substrates with Ag hierarchical structures were used as a SERS sensor for in situ detection due to the excellent SERS performance and stability of the structures.
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Affiliation(s)
- Jinguang Cai
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University , 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
- China Academy of Engineering Physics , P.O. Box 919-71, Mianyang 621900, Sichuan, People's Republic of China
| | - Chao Lv
- China Academy of Engineering Physics , P.O. Box 919-71, Mianyang 621900, Sichuan, People's Republic of China
| | - Akira Watanabe
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University , 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
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35
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Zhang N, Zhang L, Qiao X, Wang Y, Yan H, Bai L. Facile one-pot preparation of an imidazolium embedded C8 hybrid monolith using polyhedral oligomeric silsesquioxane for capillary liquid chromatography. RSC Adv 2015. [DOI: 10.1039/c5ra15823k] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In this study, a novel imidazolium embedded C8 hybrid monolithic column based on polyhedral oligomeric silsesquioxane (POSS) was developed.
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Affiliation(s)
- Niu Zhang
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis
- Ministry of Education and Key Laboratory of Pharmaceutical Quality Control of Hebei Province
- College of Pharmaceutical Sciences
- Hebei University
- Baoding 071002
| | - Lu Zhang
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis
- Ministry of Education and Key Laboratory of Pharmaceutical Quality Control of Hebei Province
- College of Pharmaceutical Sciences
- Hebei University
- Baoding 071002
| | - Xiaoqiang Qiao
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis
- Ministry of Education and Key Laboratory of Pharmaceutical Quality Control of Hebei Province
- College of Pharmaceutical Sciences
- Hebei University
- Baoding 071002
| | - Yongli Wang
- Affiliated Hospital of Hebei University
- Baoding 071000
- China
| | - Hongyuan Yan
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis
- Ministry of Education and Key Laboratory of Pharmaceutical Quality Control of Hebei Province
- College of Pharmaceutical Sciences
- Hebei University
- Baoding 071002
| | - Ligai Bai
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis
- Ministry of Education and Key Laboratory of Pharmaceutical Quality Control of Hebei Province
- College of Pharmaceutical Sciences
- Hebei University
- Baoding 071002
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