1
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Zhou S, Zhang M, Yuan Y, Ren L, Chen Y, Li W, Zhang A, Yan J. Visible Light [2 + 2] Cycloadditions of Thermoresponsive Dendronized Styryltriazines To Exhibit Tunable Microconfinement. ACS Macro Lett 2024; 13:866-873. [PMID: 38935045 DOI: 10.1021/acsmacrolett.4c00259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/28/2024]
Abstract
Visible light-triggered photochemical reactions in aqueous media are highly valuable to tailor molecular structures and properties in an ecofriendly manner. Here we report visible light-induced catalyst-free [2 + 2] cycloadditions of thermoresponsive dendronized styryltriazines, which show tunable microconfinement to guest dyes in aqueous media. These dendronized styryltriazines are constituted of conjugated mono- or tristyryltriazines, which carry hydrophilic dendritic oligoethylene glycol (OEG) pendants. They underwent efficient [2 + 2] cycloadditions to form dendronized cyclobutane dimers or oligomers in water through irradiation with visible light of 400 nm, and their cycloaddition behavior was dominated by dendritic architectures and solvent conditions. Dendronization with dendritic OEGs also afforded them characteristic thermoresponsive properties with tunable phase transition temperatures in the range 36-65 °C, which can be further modulated through photocycloaddition of styryltriazine chromophores. Importantly, dendronized styryltriazines can form tunable microenvironments in aqueous media, which encapsulate hydrophobic solvatochromic Nile red to exhibit variable photophysical properties. The encapsulated guest dye can be simultaneously released through noninvasive visible light-induced [2 + 2] cycloaddition reactions.
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Affiliation(s)
- Sijie Zhou
- International Joint Laboratory of Biomimetic and Smart Polymers, School of Materials Science and Engineering, Shanghai University, Nanchen Street 380, Shanghai 200444, China
| | - Mengjie Zhang
- International Joint Laboratory of Biomimetic and Smart Polymers, School of Materials Science and Engineering, Shanghai University, Nanchen Street 380, Shanghai 200444, China
| | - Yue Yuan
- International Joint Laboratory of Biomimetic and Smart Polymers, School of Materials Science and Engineering, Shanghai University, Nanchen Street 380, Shanghai 200444, China
| | - Liangxuan Ren
- International Joint Laboratory of Biomimetic and Smart Polymers, School of Materials Science and Engineering, Shanghai University, Nanchen Street 380, Shanghai 200444, China
| | - Yuqiang Chen
- International Joint Laboratory of Biomimetic and Smart Polymers, School of Materials Science and Engineering, Shanghai University, Nanchen Street 380, Shanghai 200444, China
| | - Wen Li
- International Joint Laboratory of Biomimetic and Smart Polymers, School of Materials Science and Engineering, Shanghai University, Nanchen Street 380, Shanghai 200444, China
| | - Afang Zhang
- International Joint Laboratory of Biomimetic and Smart Polymers, School of Materials Science and Engineering, Shanghai University, Nanchen Street 380, Shanghai 200444, China
| | - Jiatao Yan
- International Joint Laboratory of Biomimetic and Smart Polymers, School of Materials Science and Engineering, Shanghai University, Nanchen Street 380, Shanghai 200444, China
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Lukáš Petrova S, Vragović M, Pavlova E, Černochová Z, Jäger A, Jäger E, Konefał R. Smart Poly(lactide)- b-poly(triethylene glycol methyl ether methacrylate) (PLA- b-PTEGMA) Block Copolymers: One-Pot Synthesis, Temperature Behavior, and Controlled Release of Paclitaxel. Pharmaceutics 2023; 15:pharmaceutics15041191. [PMID: 37111676 PMCID: PMC10143907 DOI: 10.3390/pharmaceutics15041191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 03/31/2023] [Accepted: 04/06/2023] [Indexed: 04/29/2023] Open
Abstract
This paper introduces a new class of amphiphilic block copolymers created by combining two polymers: polylactic acid (PLA), a biocompatible and biodegradable hydrophobic polyester used for cargo encapsulation, and a hydrophilic polymer composed of oligo ethylene glycol chains (triethylene glycol methyl ether methacrylate, TEGMA), which provides stability and repellent properties with added thermo-responsiveness. The PLA-b-PTEGMA block copolymers were synthesized using ring-opening polymerization (ROP) and reversible addition-fragmentation chain transfer (RAFT) polymerization (ROP-RAFT), resulting in varying ratios between the hydrophobic and hydrophilic blocks. Standard techniques, such as size exclusion chromatography (SEC) and 1H NMR spectroscopy, were used to characterize the block copolymers, while 1H NMR spectroscopy, 2D nuclear Overhauser effect spectroscopy (NOESY), and dynamic light scattering (DLS) were used to analyze the effect of the hydrophobic PLA block on the LCST of the PTEGMA block in aqueous solutions. The results show that the LCST values for the block copolymers decreased with increasing PLA content in the copolymer. The selected block copolymer presented LCST transitions at physiologically relevant temperatures, making it suitable for manufacturing nanoparticles (NPs) and drug encapsulation-release of the chemotherapeutic paclitaxel (PTX) via temperature-triggered drug release mechanism. The drug release profile was found to be temperature-dependent, with PTX release being sustained at all tested conditions, but substantially accelerated at 37 and 40 °C compared to 25 °C. The NPs were stable under simulated physiological conditions. These findings demonstrate that the addition of hydrophobic monomers, such as PLA, can tune the LCST temperatures of thermo-responsive polymers, and that PLA-b-PTEGMA copolymers have great potential for use in drug and gene delivery systems via temperature-triggered drug release mechanisms in biomedicine applications.
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Affiliation(s)
- Svetlana Lukáš Petrova
- Institute of Macromolecular Chemistry CAS, Heyrovského nám. 2, 162 06 Prague, Czech Republic
| | - Martina Vragović
- Institute of Macromolecular Chemistry CAS, Heyrovského nám. 2, 162 06 Prague, Czech Republic
| | - Ewa Pavlova
- Institute of Macromolecular Chemistry CAS, Heyrovského nám. 2, 162 06 Prague, Czech Republic
| | - Zulfiya Černochová
- Institute of Macromolecular Chemistry CAS, Heyrovského nám. 2, 162 06 Prague, Czech Republic
| | - Alessandro Jäger
- Institute of Macromolecular Chemistry CAS, Heyrovského nám. 2, 162 06 Prague, Czech Republic
| | - Eliézer Jäger
- Institute of Macromolecular Chemistry CAS, Heyrovského nám. 2, 162 06 Prague, Czech Republic
| | - Rafał Konefał
- Institute of Macromolecular Chemistry CAS, Heyrovského nám. 2, 162 06 Prague, Czech Republic
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Shu J, Xiong W, Zhang R, Ma S, Zhou K, Wang X, Yan F, Huang D, Li J, Wu Y, He J. Glycan-selective in-situ growth of thermoresponsive polymers for thermoprecipitation and enrichment of N-glycoprotein/glycopeptides. Talanta 2023; 253:123956. [PMID: 36167012 DOI: 10.1016/j.talanta.2022.123956] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 09/13/2022] [Accepted: 09/19/2022] [Indexed: 12/13/2022]
Abstract
In view of the biological significance and micro-heterogeneity of protein glycosylation for human health, specific enrichment of N-glycosylated proteins/peptides from complex biological samples is a prerequisite for the discovery of disease biomarkers and clinical diagnosis. In this work, we propose a "grafting-from" N-glycoprotein enriching method based on the in-situ growth of thermoresponsive polymer brushes from the N-glycosylated site of proteins. The initiator was first attached to the pre-oxidized glycan moieties by hydrazide chemistry, from which the thermoresponsive polymers can be grown to form giant protein-polymer conjugates (PPC). The thermosensitive PPC can be precipitated and separated by raising the temperature to above its lower critical solubility temperature (LCST). Mass spectrometry verified 210 N-glycopeptides corresponding to 136 N-glycoproteins in the rabbit serum. These results demonstrate the capability of the tandem thermoprecipitation strategy to enrich and separate N-glycoprotein/glycopeptide. Due to its simplicity and efficiency specifically, this method holds the potential for identifying biomarkers from biological samples in N-glycoproteome analysis.
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Affiliation(s)
- Jingjing Shu
- Research Institute of Photocatalysis, College of Biological Science and Engineering, Fuzhou University, 2 Xueyuan Road, Fuzhou, 350108, China
| | - Wenli Xiong
- Research Institute of Photocatalysis, College of Biological Science and Engineering, Fuzhou University, 2 Xueyuan Road, Fuzhou, 350108, China
| | - Ran Zhang
- Central Laboratory of Health Quarantine, International Travel Health Care Center, Shenzhen Customs District. 1011 Fuqiang Road, Shenzhen, 518045, China
| | - Shanyun Ma
- Research Institute of Photocatalysis, College of Biological Science and Engineering, Fuzhou University, 2 Xueyuan Road, Fuzhou, 350108, China
| | - Kaiqiang Zhou
- Research Institute of Photocatalysis, College of Biological Science and Engineering, Fuzhou University, 2 Xueyuan Road, Fuzhou, 350108, China
| | - Xuwei Wang
- Research Institute of Photocatalysis, College of Biological Science and Engineering, Fuzhou University, 2 Xueyuan Road, Fuzhou, 350108, China
| | - Fen Yan
- Research Institute of Photocatalysis, College of Biological Science and Engineering, Fuzhou University, 2 Xueyuan Road, Fuzhou, 350108, China
| | - Da Huang
- Research Institute of Photocatalysis, College of Biological Science and Engineering, Fuzhou University, 2 Xueyuan Road, Fuzhou, 350108, China
| | - Jianhua Li
- Research Institute of Photocatalysis, College of Biological Science and Engineering, Fuzhou University, 2 Xueyuan Road, Fuzhou, 350108, China
| | - Yuanzi Wu
- Research Institute of Photocatalysis, College of Biological Science and Engineering, Fuzhou University, 2 Xueyuan Road, Fuzhou, 350108, China.
| | - Jian'an He
- Central Laboratory of Health Quarantine, International Travel Health Care Center, Shenzhen Customs District. 1011 Fuqiang Road, Shenzhen, 518045, China.
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Fan X, Liu X, Liu F, Gu H. Thermo/β-cyclodextrin-responsive ferrocenyl hydrogels constructed by ROMP reaction. POLYMER 2023. [DOI: 10.1016/j.polymer.2023.125671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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5
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Wang Y, Tan X, Usman A, Zhang Y, Sawczyk M, Král P, Zhang C, Whittaker AK. Elucidating the Impact of Hydrophilic Segments on 19F MRI Sensitivity of Fluorinated Block Copolymers. ACS Macro Lett 2022; 11:1195-1201. [DOI: 10.1021/acsmacrolett.2c00414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yiqing Wang
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Xiao Tan
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD 4072, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Adil Usman
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD 4072, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Yuhao Zhang
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Michał Sawczyk
- Department of Chemistry, University of Illinois at Chicago, Chicago, Illinois 60607, United States
| | - Petr Král
- Department of Chemistry, University of Illinois at Chicago, Chicago, Illinois 60607, United States
- Department of Physics, University of Illinois at Chicago, Chicago, Illinois 60607, United States
- Department of Pharmaceutical Sciences, University of Illinois at Chicago, Chicago, Illinois 60612, United States
- Department of Chemical Engineering, University of Illinois at Chicago, Chicago, Illinois 60607, United States
| | - Cheng Zhang
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD 4072, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Andrew K. Whittaker
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD 4072, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of Queensland, Brisbane, QLD 4072, Australia
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6
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Wu J, Zhang J, Liu Y, Wang J, Zhang C, Yan J, Li W, Masuda T, Whittaker AK, Zhang A. Supramolecular Chiral Assembly of Symmetric Molecules with an Extended Conjugated Core. ACS APPLIED MATERIALS & INTERFACES 2022; 14:33734-33745. [PMID: 35834778 DOI: 10.1021/acsami.2c09752] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
C3-symmetric molecules carrying a conjugated diacetylene (DA) core are found to self-assemble into well-defined supramolecular fibers with enhanced supramolecular chirality in both organic and aqueous solutions. The conjugated core affords these amphiphiles characteristic fluorescence properties, which can be quenched partially due to the aggregation. Integration of the C3-symmetry with the conjugation provides these novel molecules strong aggregation tendency through solvent-mediated π-π stacking with preferential supramolecular chirality, which is predominately related to steric hindrance from their dipeptide pendants. Highly uniform supramolecular fibers of P and M handedness with thickness consistent in the dimensions of individual C3 molecules are obtained. The increase of concentrations induces these fibers to wrap together to form supramolecular fibrous bundles. Topochemical polymerization of the DA moieties can transform these supramolecular fibers into stable covalent polymers. We therefore believe that self-assembly of these C3-symmetric molecules with extended conjugated DA cores provides new prospects for the construction of supramolecular helical fibers through enhanced π-π stacking and creates a convenient strategy to furnish covalent chiral polymers of hierarchical structures through supramolecular assembly.
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Affiliation(s)
- Jindiao Wu
- International Joint Laboratory of Biomimetic and Smart Polymers, School of Materials Science and Engineering, Shanghai University, 99 Shangda Road, Shanghai 20444, P. R. China
| | - Jianan Zhang
- International Joint Laboratory of Biomimetic and Smart Polymers, School of Materials Science and Engineering, Shanghai University, 99 Shangda Road, Shanghai 20444, P. R. China
| | - Yanjun Liu
- International Joint Laboratory of Biomimetic and Smart Polymers, School of Materials Science and Engineering, Shanghai University, 99 Shangda Road, Shanghai 20444, P. R. China
| | - Jun Wang
- International Joint Laboratory of Biomimetic and Smart Polymers, School of Materials Science and Engineering, Shanghai University, 99 Shangda Road, Shanghai 20444, P. R. China
| | - Cheng Zhang
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, Queensland 4072, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Jiatao Yan
- International Joint Laboratory of Biomimetic and Smart Polymers, School of Materials Science and Engineering, Shanghai University, 99 Shangda Road, Shanghai 20444, P. R. China
| | - Wen Li
- International Joint Laboratory of Biomimetic and Smart Polymers, School of Materials Science and Engineering, Shanghai University, 99 Shangda Road, Shanghai 20444, P. R. China
| | - Toshio Masuda
- International Joint Laboratory of Biomimetic and Smart Polymers, School of Materials Science and Engineering, Shanghai University, 99 Shangda Road, Shanghai 20444, P. R. China
| | - Andrew K Whittaker
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, Queensland 4072, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Afang Zhang
- International Joint Laboratory of Biomimetic and Smart Polymers, School of Materials Science and Engineering, Shanghai University, 99 Shangda Road, Shanghai 20444, P. R. China
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7
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Xu G, Zhang J, Jia R, Li W, Zhang A. Topological Effects of Dendronized Polymers on Their Thermoresponsiveness and Microconfinement. Macromolecules 2022. [DOI: 10.1021/acs.macromol.1c02066] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Gang Xu
- International Joint Laboratory of Biomimetic & Smart Polymers, School of Materials Science and Engineering, Shanghai University, Shangda Road 99, Shanghai 20444, China
| | - Jiaxing Zhang
- International Joint Laboratory of Biomimetic & Smart Polymers, School of Materials Science and Engineering, Shanghai University, Shangda Road 99, Shanghai 20444, China
| | - Ruitong Jia
- International Joint Laboratory of Biomimetic & Smart Polymers, School of Materials Science and Engineering, Shanghai University, Shangda Road 99, Shanghai 20444, China
| | - Wen Li
- International Joint Laboratory of Biomimetic & Smart Polymers, School of Materials Science and Engineering, Shanghai University, Shangda Road 99, Shanghai 20444, China
| | - Afang Zhang
- International Joint Laboratory of Biomimetic & Smart Polymers, School of Materials Science and Engineering, Shanghai University, Shangda Road 99, Shanghai 20444, China
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8
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Tan X, Zhong J, Fu C, Dang H, Han Y, Král P, Guo J, Yuan Z, Peng H, Zhang C, Whittaker AK. Amphiphilic Perfluoropolyether Copolymers for the Effective Removal of Polyfluoroalkyl Substances from Aqueous Environments. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c00096] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Xiao Tan
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, Queensland 4072, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Jiexi Zhong
- Advanced Water Management Centre, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Changkui Fu
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, Queensland 4072, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Huy Dang
- Department of Chemistry, University of Illinois at Chicago, Chicago, Illinois 60607, United States
| | - Yanxiao Han
- Department of Chemistry, University of Illinois at Chicago, Chicago, Illinois 60607, United States
| | - Petr Král
- Department of Chemistry, University of Illinois at Chicago, Chicago, Illinois 60607, United States
- Department of Physics, University of Illinois at Chicago, Chicago, Illinois 60607, United States
- Department of Biopharmaceutical Sciences, University of Illinois at Chicago, Chicago, Illinois 60612, United States
| | - Jianhua Guo
- Advanced Water Management Centre, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Zhiguo Yuan
- Advanced Water Management Centre, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Hui Peng
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, Queensland 4072, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Cheng Zhang
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, Queensland 4072, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Andrew K. Whittaker
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, Queensland 4072, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of Queensland, Brisbane, Queensland 4072, Australia
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9
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Usman A, Zhang C, Zhao J, Peng H, Kurniawan ND, Fu C, Hill DJT, Whittaker AK. Tuning the thermoresponsive properties of PEG-based fluorinated polymers and stimuli responsive drug release for switchable 19F magnetic resonance imaging. Polym Chem 2021. [DOI: 10.1039/d1py00602a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Switching on of the 19F MRI signal via stimuli-responsive release of hydrophobic drug from PEG-based partly-fluorinated polymers due to change in thermoresponsive properties.
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Affiliation(s)
- Adil Usman
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, QLD 4072, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of Queensland, St Lucia, QLD 4072, Australia
| | - Cheng Zhang
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, QLD 4072, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of Queensland, St Lucia, QLD 4072, Australia
| | - Jiacheng Zhao
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, QLD 4072, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of Queensland, St Lucia, QLD 4072, Australia
| | - Hui Peng
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, QLD 4072, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of Queensland, St Lucia, QLD 4072, Australia
| | - Nyoman D. Kurniawan
- Centre for Advanced Imaging, The University of Queensland, St Lucia, QLD 4072, Australia
| | - Changkui Fu
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, QLD 4072, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of Queensland, St Lucia, QLD 4072, Australia
| | - David J. T. Hill
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, QLD 4072, Australia
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, QLD 4072, Australia
| | - Andrew K. Whittaker
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, QLD 4072, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of Queensland, St Lucia, QLD 4072, Australia
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10
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Wu D, Liu K, Ren L, Zhu L, Yan J, Li W, Zhang X, Zhang A. [2 + 2] Photocycloaddition-Mediated Intra- and Intermolecular Cross-Linking of Thermoresponsive Dendronized Polymethacrylates. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c02298] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Di Wu
- Laboratory of Polymer Chemistry, College of Materials Science and Engineering, Shanghai University, Materials Building Room 447, Nanchen Street 333, Shanghai 200444, China
| | - Kun Liu
- Laboratory of Polymer Chemistry, College of Materials Science and Engineering, Shanghai University, Materials Building Room 447, Nanchen Street 333, Shanghai 200444, China
| | - Liangxuan Ren
- Laboratory of Polymer Chemistry, College of Materials Science and Engineering, Shanghai University, Materials Building Room 447, Nanchen Street 333, Shanghai 200444, China
| | - Li Zhu
- Laboratory of Polymer Chemistry, College of Materials Science and Engineering, Shanghai University, Materials Building Room 447, Nanchen Street 333, Shanghai 200444, China
| | - Jiatao Yan
- Laboratory of Polymer Chemistry, College of Materials Science and Engineering, Shanghai University, Materials Building Room 447, Nanchen Street 333, Shanghai 200444, China
| | - Wen Li
- Laboratory of Polymer Chemistry, College of Materials Science and Engineering, Shanghai University, Materials Building Room 447, Nanchen Street 333, Shanghai 200444, China
| | - Xiacong Zhang
- Laboratory of Polymer Chemistry, College of Materials Science and Engineering, Shanghai University, Materials Building Room 447, Nanchen Street 333, Shanghai 200444, China
| | - Afang Zhang
- Laboratory of Polymer Chemistry, College of Materials Science and Engineering, Shanghai University, Materials Building Room 447, Nanchen Street 333, Shanghai 200444, China
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11
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Konefał R, Černoch P, Konefał M, Spěváček J. Temperature Behavior of Aqueous Solutions of Poly(2-oxazoline) Homopolymer and Block Copolymers Investigated by NMR Spectroscopy and Dynamic Light Scattering. Polymers (Basel) 2020; 12:E1879. [PMID: 32825475 PMCID: PMC7565327 DOI: 10.3390/polym12091879] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 08/17/2020] [Accepted: 08/18/2020] [Indexed: 11/16/2022] Open
Abstract
1H NMR methods in combination with dynamic light scattering were applied to study temperature behavior of poly(2-isopropyl-2-oxazoline) (PIPOx) homopolymer as well as PIPOx-b-poly(2-methyl-2-oxazoline) (PMeOx) and poly(2-ethyl-2-oxazoline) (PEtOx)-b-PMeOx diblock copolymers in aqueous solutions. 1H NMR spectra showed a different way of phase transition for the main and side chains in PIPOx-based solutions. Additionally, the phase transition is irreversible for PIPOx homopolymer and partially reversible for PIPOx-b-PMeOx copolymer. As revealed by NMR, the phase transition in PEtOx-based copolymers solutions exists despite the absence of solution turbidity. It is very broad, virtually independent of the copolymer composition and reversible with some hysteresis. Two types of water molecules were detected in solutions of the diblock copolymers above the phase transition-"free" with long and "bound" with short spin-spin relaxation times T2. NOESY spectra revealed information about conformational changes observed already in the pre-transition region of PIPOx-b-PMeOx copolymer solution.
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Affiliation(s)
- Rafał Konefał
- Institute of Macromolecular Chemistry CAS, Heyrovského nám. 2, 162 06 Prague 6, Czech Republic; (P.Č.); (M.K.)
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12
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Xu G, Liu K, Xu B, Yao Y, Li W, Yan J, Zhang A. Confined Microenvironments from Thermoresponsive Dendronized Polymers. Macromol Rapid Commun 2020; 41:e2000325. [PMID: 32639094 DOI: 10.1002/marc.202000325] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 06/23/2020] [Indexed: 11/07/2022]
Abstract
Confined microenvironments in biomacromolecules arising from molecular crowding account for their well-defined biofunctions and bioactivities. To mimick this, synthetic polymers to form confined structures or microenvironments are of key scientific value, which have received significant attention recently. To create synthetic confined microenvironments, molecular crowding effects and topological cooperative effects have been applied successfully, and the key is balance between self-association of structural units and self-repulsion from crowding-induced steric hindrance. In this article, formation of confined microenvironments from stimuli-responsive dendronized polymers carrying densely dendritic oligoethylene glycols (OEGs) moieties in their pendants is presented. These wormlike thick macromolecules exhibit characteristic thermoresponsive properties, which can provide constrained microenvironments to encapsulate effectively guest molecules including dyes, proteins, or nucleic acids to prevent their protonation or biodegradation. This efficient shielding effect can also mediate chemical reactions in aqueous phase, and even enhance chirality transferring efficiency. All of these can be switched off simply through the thermally-induced dehydration and collapse of OEG dendrons due to the amphiphilicity of OEG chains. Furthermore, the switchable encapsulation and release of guests can be greatly enhanced when these dendronized polymers are used as major constituents for fabricating bulk hydrogels or nanogels, which provide a higher-level confinement.
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Affiliation(s)
- Gang Xu
- International Joint Laboratory of Smart and Biomimetic Polymers, School of Materials Science and Engineering, Shanghai University, 99 Shangda Road, Shanghai, 200444, China
| | - Kun Liu
- International Joint Laboratory of Smart and Biomimetic Polymers, School of Materials Science and Engineering, Shanghai University, 99 Shangda Road, Shanghai, 200444, China
| | - Biyi Xu
- International Joint Laboratory of Smart and Biomimetic Polymers, School of Materials Science and Engineering, Shanghai University, 99 Shangda Road, Shanghai, 200444, China
| | - Yi Yao
- International Joint Laboratory of Smart and Biomimetic Polymers, School of Materials Science and Engineering, Shanghai University, 99 Shangda Road, Shanghai, 200444, China
| | - Wen Li
- International Joint Laboratory of Smart and Biomimetic Polymers, School of Materials Science and Engineering, Shanghai University, 99 Shangda Road, Shanghai, 200444, China
| | - Jiatao Yan
- International Joint Laboratory of Smart and Biomimetic Polymers, School of Materials Science and Engineering, Shanghai University, 99 Shangda Road, Shanghai, 200444, China
| | - Afang Zhang
- International Joint Laboratory of Smart and Biomimetic Polymers, School of Materials Science and Engineering, Shanghai University, 99 Shangda Road, Shanghai, 200444, China
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13
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Zhang C, Liu T, Wang W, Bell CA, Han Y, Fu C, Peng H, Tan X, Král P, Gaus K, Gooding JJ, Whittaker AK. Tuning of the Aggregation Behavior of Fluorinated Polymeric Nanoparticles for Improved Therapeutic Efficacy. ACS NANO 2020; 14:7425-7434. [PMID: 32401485 DOI: 10.1021/acsnano.0c02954] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Incorporation of fluorinated moieties in polymeric nanoparticles has been shown in many instances to increase their uptake by living cells and, hence, has proven to be a useful approach to enhancing delivery to cells. However, it remains unclear how incorporation of fluorine affects critical transport processes, such as interactions with membranes, intracellular transport, and tumor penetration. In this study, we investigate the influence of fluorine on transport properties using a series of rationally designed poly(oligo(ethylene glycol) methyl ether acrylate)-block-perfluoropolyether (poly(OEGA)m-PFPE) copolymers. Copolymers with different fluorine contents were prepared and exhibit aggregate in solution in a manner dependent on the fluorine content. Doxorubicin-conjugated poly(OEGA)20-PFPE nanoparticles with lower fluorine content exist in solution as unimers, leading to greater exposure of hydrophobic PFPE segments to the cell surface. This, in turn, results in greater cellular uptake, deeper tumor penetration, as well as enhanced therapeutic efficacy compared to that with the micelle-state nanoaggregates (poly(OEGA)10-PFPE and poly(OEGA)5-PFPE) with higher fluorine content but with less PFPE exposed to the cell membranes. Our results demonstrate that the aggregation behavior of these fluorinated polymers plays a critical role in internalization and transport in living cells and 3D spheroids, providing important design criteria for the preparation of highly effective delivery agents.
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Affiliation(s)
- Cheng Zhang
- Materials Research Laboratory, University of California, Santa Barbara, California 93106, United States
| | - Tianqing Liu
- QIMR Berghofer Medical Research Institute, Brisbane, Qld 4006, Australia
| | | | | | | | | | | | | | - Petr Král
- Department of Biopharmaceutical Sciences, University of Illinois at Chicago, Chicago, Illinois 60612, United States
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14
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Konefał R, Spěváček J, Mužíková G, Laga R. Thermoresponsive behavior of poly(DEGMA)-based copolymers. NMR and dynamic light scattering study of aqueous solutions. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.109488] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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15
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Wu D, Wu J, Tao P, Yao Y, Wang J, Liu D, Chen F, Xu B, Li W, Zhang A. Thermoresponsive cationic dendronized copolymers and their corresponding nanogels as smart gene carriers. Polym Chem 2020. [DOI: 10.1039/d0py00631a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Thermoresponsive dendronized copolymer nanogels show unique condensation, protection and controlled release of siRNA due to dendritic topology and spherical morphology.
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Affiliation(s)
- Di Wu
- School of Materials Science and Engineering
- Shanghai University
- Shanghai 200444
- China
| | - Jianhui Wu
- School of Materials Science and Engineering
- Shanghai University
- Shanghai 200444
- China
| | - Pei Tao
- School of Materials Science and Engineering
- Shanghai University
- Shanghai 200444
- China
| | - Yi Yao
- School of Materials Science and Engineering
- Shanghai University
- Shanghai 200444
- China
| | - Jing Wang
- School of Life Science
- Shanghai University
- Shanghai 200444
- China
| | - Dongfei Liu
- State Key Laboratory of Natural Medicines
- Department of Pharmaceutics
- China Pharmaceutical University
- Nanjing 210009
- China
| | - Fuxue Chen
- School of Life Science
- Shanghai University
- Shanghai 200444
- China
| | - Biyi Xu
- School of Materials Science and Engineering
- Shanghai University
- Shanghai 200444
- China
| | - Wen Li
- School of Materials Science and Engineering
- Shanghai University
- Shanghai 200444
- China
| | - Afang Zhang
- School of Materials Science and Engineering
- Shanghai University
- Shanghai 200444
- China
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16
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Wang F, Zhou C, Liu K, Yan J, Li W, Masuda T, Zhang A. Thermoresponsive Dendronized Poly(phenylacetylene)s Showing Tunable Helicity. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b01881] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Fang Wang
- Department of Polymer Materials, International Joint Laboratory of Biomimetic & Smart Polymers, School of Materials Science and Engineering, Shanghai University, Materials Building Room 447, Nanchen Street 333, Shanghai 200444, China
| | - Congcong Zhou
- Department of Polymer Materials, International Joint Laboratory of Biomimetic & Smart Polymers, School of Materials Science and Engineering, Shanghai University, Materials Building Room 447, Nanchen Street 333, Shanghai 200444, China
| | - Kun Liu
- Department of Polymer Materials, International Joint Laboratory of Biomimetic & Smart Polymers, School of Materials Science and Engineering, Shanghai University, Materials Building Room 447, Nanchen Street 333, Shanghai 200444, China
| | - Jiatao Yan
- Department of Polymer Materials, International Joint Laboratory of Biomimetic & Smart Polymers, School of Materials Science and Engineering, Shanghai University, Materials Building Room 447, Nanchen Street 333, Shanghai 200444, China
| | - Wen Li
- Department of Polymer Materials, International Joint Laboratory of Biomimetic & Smart Polymers, School of Materials Science and Engineering, Shanghai University, Materials Building Room 447, Nanchen Street 333, Shanghai 200444, China
| | - Toshio Masuda
- Department of Polymer Materials, International Joint Laboratory of Biomimetic & Smart Polymers, School of Materials Science and Engineering, Shanghai University, Materials Building Room 447, Nanchen Street 333, Shanghai 200444, China
| | - Afang Zhang
- Department of Polymer Materials, International Joint Laboratory of Biomimetic & Smart Polymers, School of Materials Science and Engineering, Shanghai University, Materials Building Room 447, Nanchen Street 333, Shanghai 200444, China
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17
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Jiang Z, Diggle B, Shackleford ICG, Connal LA. Tough, Self-Healing Hydrogels Capable of Ultrafast Shape Changing. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1904956. [PMID: 31608513 DOI: 10.1002/adma.201904956] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 09/24/2019] [Indexed: 06/10/2023]
Abstract
Achieving multifunctional shape-changing hydrogels with synergistic and engineered material properties is highly desirable for their expanding applications, yet remains an ongoing challenge. The synergistic design of multiple dynamic chemistries enables new directions for the development of such materials. Herein, a molecular design strategy is proposed based on a hydrogel combining acid-ether hydrogen bonding and imine bonds. This approach utilizes simple and scalable chemistries to produce a doubly dynamic hydrogel network, which features high water uptake, high strength and toughness, excellent fatigue resistance, fast and efficient self-healing, and superfast, programmable shape changing. Furthermore, deformed shapes can be memorized due to the large thermal hysteresis. This new type of shape-changing hydrogel is expected to be a key component in future biomedical, tissue, and soft robotic device applications.
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Affiliation(s)
- Zhen Jiang
- Research School of Chemistry, Australian National University, Canberra, ACT, 2601, Australia
| | - Broden Diggle
- Research School of Chemistry, Australian National University, Canberra, ACT, 2601, Australia
| | - India C G Shackleford
- Research School of Chemistry, Australian National University, Canberra, ACT, 2601, Australia
| | - Luke A Connal
- Research School of Chemistry, Australian National University, Canberra, ACT, 2601, Australia
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18
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19
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Zhang C, Sanchez RJP, Fu C, Clayden-Zabik R, Peng H, Kempe K, Whittaker AK. Importance of Thermally Induced Aggregation on 19F Magnetic Resonance Imaging of Perfluoropolyether-Based Comb-Shaped Poly(2-oxazoline)s. Biomacromolecules 2018; 20:365-374. [DOI: 10.1021/acs.biomac.8b01549] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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20
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Zhang C, Kim DS, Lawrence J, Hawker CJ, Whittaker AK. Elucidating the Impact of Molecular Structure on the 19F NMR Dynamics and MRI Performance of Fluorinated Oligomers. ACS Macro Lett 2018; 7:921-926. [PMID: 35650966 DOI: 10.1021/acsmacrolett.8b00433] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
To understand molecular factors that impact the performance of polymeric 19F magnetic resonance imaging (MRI) agents, a series of discrete fluorinated oligoacrylates with precisely defined structure were prepared through the combination of controlled polymerization and chromatographic separation techniques. These discrete oligomers enabled thorough elucidation of the dependence of 19F NMR and MRI properties on molecular structure, for example, the chain length. Importantly, the oligomer size and dispersity strongly influence NMR dynamics (T1 and T2 relaxation times) and MR imaging properties with higher signal-to-noise ratio (SNR) observed for oligomers with longer chain length and shorter T1. Our approach enables an effective pathway and thus opportunities to rationally design effective polymeric 19F MR imaging agents with optimized molecular structure and NMR relaxivity.
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Affiliation(s)
| | - Dong Sub Kim
- Materials Research Laboratory, Materials Department and Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Jimmy Lawrence
- Materials Research Laboratory, Materials Department and Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
- Cain Department of Chemical Engineering, Louisiana State University, Baton Rouge, Louisiana 70803, United States
| | - Craig J. Hawker
- Materials Research Laboratory, Materials Department and Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
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21
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Silambarasan K, Joseph J. Electrochemical Diagnosis of Chemical Switch: Impact of Structural Changes on Charge Transport Mechanism of “Redox Anion Bound Polysilsesquioxane” Film. ChemElectroChem 2018. [DOI: 10.1002/celc.201800799] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | - James Joseph
- Electrodics and Electrocatalysis division; Central Electrochemical Research Institute; Karaikudi India
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22
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Truong NP, Zhang C, Nguyen TAH, Anastasaki A, Schulze MW, Quinn JF, Whittaker AK, Hawker CJ, Whittaker MR, Davis TP. Overcoming Surfactant-Induced Morphology Instability of Noncrosslinked Diblock Copolymer Nano-Objects Obtained by RAFT Emulsion Polymerization. ACS Macro Lett 2018; 7:159-165. [PMID: 35610912 DOI: 10.1021/acsmacrolett.7b00978] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
RAFT emulsion polymerization techniques including polymerization-induced self-assembly (PISA) and temperature-induced morphological transformation (TIMT) are widely used to produce noncrosslinked nano-objects with various morphologies. However, the worm, vesicle and lamellar morphologies produced by these techniques typically cannot tolerate the presence of added surfactants, thus limiting their potential applications. Herein we report the surfactant tolerance of noncrosslinked worms, vesicles, and lamellae prepared by RAFT emulsion polymerizations using poly(di(ethylene glycol) ethyl ether methacrylate-co-N-(2-hydroxypropyl) methacrylamide) (P(DEGMA-co-HPMA)) as a macromolecular chain transfer agent (macro-CTA). Significantly, these P(DEGMA-co-HPMA) nanoparticles are highly stable in concentrated solutions of surfactants (e.g., sodium dodecyl sulfate (SDS)). We also demonstrate that the surfactant tolerance is related to the limited binding of SDS to the main-chain of the P(DEGMA-co-HPMA) macro-CTA constituting the particle shell. This work provides new insight into the interactions between surfactants and thermoresponsive copolymers and expands the scope of RAFT emulsion polymerization techniques for the preparation of noncrosslinked and surfactant-tolerant nanomaterials.
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Affiliation(s)
- Nghia P Truong
- ARC Centre of Excellence in Convergent Bio-Nano Science & Technology, Monash Institute of Pharmaceutical Sciences, Monash University, Melbourne, Victoria 3052, Australia
| | | | | | - Athina Anastasaki
- Materials Research Laboratory, University of California, Santa Barbara, California 93106, United States
| | - Morgan W Schulze
- Materials Research Laboratory, University of California, Santa Barbara, California 93106, United States
| | - John F Quinn
- ARC Centre of Excellence in Convergent Bio-Nano Science & Technology, Monash Institute of Pharmaceutical Sciences, Monash University, Melbourne, Victoria 3052, Australia
| | | | - Craig J Hawker
- Materials Research Laboratory, University of California, Santa Barbara, California 93106, United States
| | - Michael R Whittaker
- ARC Centre of Excellence in Convergent Bio-Nano Science & Technology, Monash Institute of Pharmaceutical Sciences, Monash University, Melbourne, Victoria 3052, Australia
| | - Thomas P Davis
- ARC Centre of Excellence in Convergent Bio-Nano Science & Technology, Monash Institute of Pharmaceutical Sciences, Monash University, Melbourne, Victoria 3052, Australia
- Department of Chemistry, University of Warwick, Coventry CV4 7AL, United Kingdom
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23
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Liu J, Zhang X, Chen X, Qu L, Zhang L, Li W, Zhang A. Stimuli-responsive dendronized polymeric hydrogels through Schiff-base chemistry showing remarkable topological effects. Polym Chem 2018. [DOI: 10.1039/c7py01865g] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Crowded and thick dendronized polymers enhance the formation of a Schiff-base through thermally-induced collapse or freezing, resulting in hydrogels with different performances.
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Affiliation(s)
- Jie Liu
- Laboratory of Polymer Chemistry
- Department of Polymer Materials
- College of Materials Science and Engineering
- Shanghai University
- Shanghai 200444
| | - Xiacong Zhang
- Laboratory of Polymer Chemistry
- Department of Polymer Materials
- College of Materials Science and Engineering
- Shanghai University
- Shanghai 200444
| | - Xiao Chen
- Laboratory of Polymer Chemistry
- Department of Polymer Materials
- College of Materials Science and Engineering
- Shanghai University
- Shanghai 200444
| | - Liangliang Qu
- School of Engineering and Applied Sciences
- Harvard University
- Cambridge
- USA
| | - Liyuan Zhang
- School of Engineering and Applied Sciences
- Harvard University
- Cambridge
- USA
| | - Wen Li
- Laboratory of Polymer Chemistry
- Department of Polymer Materials
- College of Materials Science and Engineering
- Shanghai University
- Shanghai 200444
| | - Afang Zhang
- Laboratory of Polymer Chemistry
- Department of Polymer Materials
- College of Materials Science and Engineering
- Shanghai University
- Shanghai 200444
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24
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Dalgakiran E, Tatlipinar H. The role of hydrophobic hydration in the LCST behaviour of POEGMA300 by all-atom molecular dynamics simulations. Phys Chem Chem Phys 2018; 20:15389-15399. [DOI: 10.1039/c8cp02026d] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
The role of hydrophobic hydration in the LCST phase transition of POEGMA300 by means of the breakage of cage-like water formations around the side chains.
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Affiliation(s)
- Eray Dalgakiran
- Department of Physics
- Faculty of Arts and Sciences
- Yildiz Technical University
- Istanbul
- Turkey
| | - Hasan Tatlipinar
- Department of Physics
- Faculty of Arts and Sciences
- Yildiz Technical University
- Istanbul
- Turkey
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25
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Dalgakiran E, Tatlipinar H. Atomistic insights on the LCST behavior of PMEO2
MA in water by molecular dynamics simulations. ACTA ACUST UNITED AC 2017. [DOI: 10.1002/polb.24555] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Eray Dalgakiran
- Department of Physics, Faculty of Arts and Sciences; Yildiz Technical University; Istanbul 34220 Turkey
| | - Hasan Tatlipinar
- Department of Physics, Faculty of Arts and Sciences; Yildiz Technical University; Istanbul 34220 Turkey
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26
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Shalaeva YV, Morozova JE, Syakaev VV, Kazakova EK, Ermakova AM, Nizameev IR, Kadirov MK, Konovalov AI. Novel thermoresponsive water-soluble oligomers based on amphiphilic calixresorcinarenes. Supramol Chem 2017. [DOI: 10.1080/10610278.2017.1298765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Ya. V. Shalaeva
- A. E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Center, Russian Academy of Science, Kazan, Russian Federation
- Department of Organic Chemistry, A. M. Butlerov Institute of Chemistry, Kazan Federal University, Kazan, Russian Federation
| | - Ju. E. Morozova
- A. E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Center, Russian Academy of Science, Kazan, Russian Federation
- Department of Organic Chemistry, A. M. Butlerov Institute of Chemistry, Kazan Federal University, Kazan, Russian Federation
| | - V. V. Syakaev
- A. E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Center, Russian Academy of Science, Kazan, Russian Federation
| | - E. Kh. Kazakova
- A. E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Center, Russian Academy of Science, Kazan, Russian Federation
| | - A. M. Ermakova
- Department of Organic Chemistry, A. M. Butlerov Institute of Chemistry, Kazan Federal University, Kazan, Russian Federation
| | - I. R. Nizameev
- A. E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Center, Russian Academy of Science, Kazan, Russian Federation
- Department of Physics, Kazan National Research Technical University, Kazan, Russian Federation
| | - M. K. Kadirov
- A. E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Center, Russian Academy of Science, Kazan, Russian Federation
| | - A. I. Konovalov
- A. E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Center, Russian Academy of Science, Kazan, Russian Federation
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27
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Zhang C, Moonshi SS, Han Y, Puttick S, Peng H, Magoling BJA, Reid JC, Bernardi S, Searles DJ, Král P, Whittaker AK. PFPE-Based Polymeric 19F MRI Agents: A New Class of Contrast Agents with Outstanding Sensitivity. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b01285] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Cheng Zhang
- Australian
Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, Qld 4072, Australia
- ARC Centre of
Excellence in Convergent Bio-Nano Science and Technology, The University of Queensland, Brisbane, Qld 4072, Australia
| | - Shehzahdi Shebbrin Moonshi
- Australian
Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, Qld 4072, Australia
- ARC Centre of
Excellence in Convergent Bio-Nano Science and Technology, The University of Queensland, Brisbane, Qld 4072, Australia
| | | | - Simon Puttick
- Australian
Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, Qld 4072, Australia
- ARC Centre of
Excellence in Convergent Bio-Nano Science and Technology, The University of Queensland, Brisbane, Qld 4072, Australia
| | - Hui Peng
- Australian
Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, Qld 4072, Australia
- ARC Centre of
Excellence in Convergent Bio-Nano Science and Technology, The University of Queensland, Brisbane, Qld 4072, Australia
| | - Bryan John Abel Magoling
- Australian
Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, Qld 4072, Australia
| | - James C. Reid
- Australian
Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, Qld 4072, Australia
| | - Stefano Bernardi
- Australian
Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, Qld 4072, Australia
| | - Debra J. Searles
- Australian
Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, Qld 4072, Australia
- School
of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, Qld 4072, Australia
| | - Petr Král
- Department
of Biopharmaceutical Sciences, University of Illinois at Chicago, Chicago, Illinois 60612, United States
| | - Andrew K. Whittaker
- Australian
Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, Qld 4072, Australia
- ARC Centre of
Excellence in Convergent Bio-Nano Science and Technology, The University of Queensland, Brisbane, Qld 4072, Australia
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28
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Kong T, Guo G, Zhang H, Gao L. Post-synthetic modification of polyvinyl alcohol with a series of N-alkyl-substituted carbamates towards thermo and CO2-responsive polymers. Polym Chem 2017. [DOI: 10.1039/c7py01136a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Intensive efforts have been devoted to the synthesis of thermoresponsive polymers with terminal N-alkyl-substituted groups.
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Affiliation(s)
- Tengfei Kong
- School of Chemical Engineering and Light Industry
- Guangdong University of Technology
- Guangzhou
- China
| | - Guoqiang Guo
- School of Chemical Engineering and Light Industry
- Guangdong University of Technology
- Guangzhou
- China
| | - Huatang Zhang
- School of Chemical Engineering and Light Industry
- Guangdong University of Technology
- Guangzhou
- China
| | - Liang Gao
- School of Chemical Engineering and Light Industry
- Guangdong University of Technology
- Guangzhou
- China
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29
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Kim H, Bang KT, Choi I, Lee JK, Choi TL. Diversity-Oriented Polymerization: One-Shot Synthesis of Library of Graft and Dendronized Polymers by Cu-Catalyzed Multicomponent Polymerization. J Am Chem Soc 2016; 138:8612-22. [DOI: 10.1021/jacs.6b04695] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hyunseok Kim
- Department of Chemistry, Seoul National University, Seoul 151-747, Korea
| | - Ki-Taek Bang
- Department of Chemistry, Seoul National University, Seoul 151-747, Korea
| | - Inho Choi
- Department of Chemistry, Seoul National University, Seoul 151-747, Korea
| | - Jin-Kyung Lee
- Department of Chemistry, Seoul National University, Seoul 151-747, Korea
| | - Tae-Lim Choi
- Department of Chemistry, Seoul National University, Seoul 151-747, Korea
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30
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Zhang C, Moonshi SS, Peng H, Puttick S, Reid J, Bernardi S, Searles DJ, Whittaker AK. Ion-Responsive 19F MRI Contrast Agents for the Detection of Cancer Cells. ACS Sens 2016. [DOI: 10.1021/acssensors.6b00216] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Cheng Zhang
- ARC
Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Shehzahdi Shebbrin Moonshi
- ARC
Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Hui Peng
- ARC
Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Simon Puttick
- ARC
Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of Queensland, Brisbane, Queensland 4072, Australia
| | | | | | | | - Andrew K. Whittaker
- ARC
Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of Queensland, Brisbane, Queensland 4072, Australia
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