1
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Kuzmyn AR, van Galen M, van Lagen B, Zuilhof H. SI-PET-RAFT in flow: improved control over polymer brush growth. Polym Chem 2023; 14:3357-3363. [PMID: 37497044 PMCID: PMC10367056 DOI: 10.1039/d3py00488k] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Accepted: 06/07/2023] [Indexed: 07/28/2023]
Abstract
Surface-initiated photoinduced electron transfer-reversible addition-fragmentation chain transfer (SI-PET-RAFT) provides a light-dependent tool to synthesize polymer brushes on different surfaces that tolerates oxygen and water, and does not require a metal catalyst. Here we introduce improved control over SI-PET-RAFT polymerizations via continuous flow conditions. We confirm the composition and topological structure of the brushes by X-ray photoelectron spectroscopy, ellipsometry, and AFM. The improved control compared to no-flow conditions provides prolonged linear growth of the polymer brush (up to 250 nm, where no-flow polymerization maxed out <50 nm), and improved polymerization control of the polymer brush that allows the construction of diblock polymer brushes. We further show the linear correlation between the molecular weight of the polymer brush and its dry thickness by combining ellipsometry and single-molecule force spectroscopy.
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Affiliation(s)
- Andriy R Kuzmyn
- Laboratory of Organic Chemistry, Wageningen University & Research Stippeneng 4 6708 WE Wageningen The Netherlands
| | - Martijn van Galen
- Laboratory of Organic Chemistry, Wageningen University & Research Stippeneng 4 6708 WE Wageningen The Netherlands
- Physical Chemistry and Soft Matter, Wageningen University & Research Stippeneng 4 6708 WE Wageningen The Netherlands
- Laboratory of Biochemistry, Wageningen University and Research Stippeneng 4 6708 WE Wageningen the Netherlands
| | - Barend van Lagen
- Laboratory of Organic Chemistry, Wageningen University & Research Stippeneng 4 6708 WE Wageningen The Netherlands
| | - Han Zuilhof
- Laboratory of Organic Chemistry, Wageningen University & Research Stippeneng 4 6708 WE Wageningen The Netherlands
- School of Pharmaceutical Sciences and Technology, Tianjin University 92 Weijin Road Tianjin 300072 China
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2
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Patel V, Parekh P, Khimani M, Yusa SI, Bahadur P. Pluronics® based Penta Block Copolymer micelles as a precursor of smart aggregates for various applications: A review. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.121140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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3
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Fernández-de-Alba C, Jimenez AM, Abbasi M, Kumar SK, Saalwächter K, Baeza GP. On the Immobilized Polymer Fraction in Attractive Nanocomposites: Tg Gradient versus Interfacial Layer. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c01135] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Carlos Fernández-de-Alba
- Univ Lyon, INSA-Lyon, CNRS, IMP, UMR 5223, Service RMN Polymères de l’ICL, Villeurbanne F-69621, France
| | - Andrew M. Jimenez
- Department of Chemical Engineering, Columbia University, New York, New York 10027, United States
| | - Mozhdeh Abbasi
- Institut für Physik, Martin-Luther-Universität Halle-Wittenberg, Halle (Saale) D-06099, Germany
| | - Sanat K. Kumar
- Department of Chemical Engineering, Columbia University, New York, New York 10027, United States
| | - Kay Saalwächter
- Institut für Physik, Martin-Luther-Universität Halle-Wittenberg, Halle (Saale) D-06099, Germany
| | - Guilhem P. Baeza
- Univ Lyon, INSA Lyon, UCBL, CNRS, MATEIS, UMR5510, Villeurbanne 69621, France
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4
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Kamzabek D, Le Dé B, Coche-Guérente L, Miomandre F, Dubacheva GV. Thermoresponsive Fluorescence Switches Based on Au@pNIPAM Nanoparticles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:10971-10978. [PMID: 34478305 DOI: 10.1021/acs.langmuir.1c01397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Despite numerous studies emphasizing the plasmonic impact on fluorescence, the design of a dynamic system allowing on-demand fluorescence switching in a single nanostructure remains challenging. The reversibility of fluorescence switching and the versatility of the approach, in particular its compatibility with a wide range of nanoparticles and fluorophores, are among the main experimental difficulties. In this work, we achieve reversible fluorescence switching by coupling metal nanoparticles with fluorophores through stimuli-responsive organic linkers. As a proof of concept, we link gold nanoparticles with fluorescein through thermoresponsive poly(N-isopropylacrylamide) at a tunable grafting density and characterize their size and optical response by dynamic light scattering, absorption, and fluorescence spectroscopies. We show that the fluorescence emission of these hybrid nanostructures can be switched on-demand using the thermoresponsive properties of poly(N-isopropylacrylamide). The described system presents a general strategy for the design of nanointerfaces, exhibiting reversible fluorescence switching via external control of metal nanoparticle/fluorophore distance.
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Affiliation(s)
- Dana Kamzabek
- PPSM, CNRS, Ecole Normale Supérieure Paris-Saclay, Université Paris-Saclay, 61 Avenue Président Wilson, 94235 Cachan, France
| | - Brieuc Le Dé
- PPSM, CNRS, Ecole Normale Supérieure Paris-Saclay, Université Paris-Saclay, 61 Avenue Président Wilson, 94235 Cachan, France
| | - Liliane Coche-Guérente
- Department of Molecular Chemistry, Université Grenoble Alpes, CNRS UMR 5250, 570 rue de la chimie, CS 40700, Grenoble 38000, France
| | - Fabien Miomandre
- PPSM, CNRS, Ecole Normale Supérieure Paris-Saclay, Université Paris-Saclay, 61 Avenue Président Wilson, 94235 Cachan, France
| | - Galina V Dubacheva
- PPSM, CNRS, Ecole Normale Supérieure Paris-Saclay, Université Paris-Saclay, 61 Avenue Président Wilson, 94235 Cachan, France
- Department of Molecular Chemistry, Université Grenoble Alpes, CNRS UMR 5250, 570 rue de la chimie, CS 40700, Grenoble 38000, France
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5
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Navarro LA, Shah TP, Zauscher S. Grafting To of Bottlebrush Polymers: Conformation and Kinetics. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:4745-4756. [PMID: 32105081 DOI: 10.1021/acs.langmuir.9b03620] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Specifically adsorbed bottlebrush coatings are found in nature as brush-like glycoproteins that decorate biointerfaces and provide antifouling, lubrication, or wear-protection. Although various synthetic strategies have been developed to mimic glycoprotein structure and function, the use of these mimics is still limited because of the current lack of understanding of their adsorption behavior and surface conformation. In this paper, we examine the adsorption behavior of PEG-based, biotinylated bottlebrushes with different backbone and bristle lengths to streptavidin model surfaces in phosphate-buffered saline. By using quartz crystal microbalance, localized surface plasmon resonance, and atomic force microscopy, we learn how bottlebrush dimensions impact their adsorption kinetics, surface conformation, mechanical properties, and antifouling properties. Our bottlebrushes qualitatively mirror the adsorption behavior of linear polymers and exhibit three kinetic regimes of adsorption: (I) a transport-limited regime, (II) a pause, and (III) a penetration-limited regime. Furthermore, we find that the bristle length more dramatically affects brush properties than the backbone length. Generally, larger bottlebrush dimensions lead to reduced molar adsorption, retarded kinetics, weaker antifouling, and softer brush coatings. Longer bristles also lead to less mass adsorption, while the opposite trend is observed for increasing backbone length. In summary, our findings aid the rational design of new bottlebrush coatings by elucidating how their dimensions impact adsorption, surface conformation, and the properties of the final coating.
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Affiliation(s)
- Luis A Navarro
- Department of Mechanical Engineering and Materials Science, Duke University, 101 Science Drive, Durham, North Carolina 27708, United States
| | - Tejank P Shah
- Department of Mechanical Engineering and Materials Science, Duke University, 101 Science Drive, Durham, North Carolina 27708, United States
| | - Stefan Zauscher
- Department of Mechanical Engineering and Materials Science, Duke University, 101 Science Drive, Durham, North Carolina 27708, United States
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6
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Popov I, Carroll B, Bocharova V, Genix AC, Cheng S, Khamzin A, Kisliuk A, Sokolov AP. Strong Reduction in Amplitude of the Interfacial Segmental Dynamics in Polymer Nanocomposites. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c00496] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Ivan Popov
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Bobby Carroll
- Department of Physics, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Vera Bocharova
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Anne-Caroline Genix
- Laboratoire Charles Coulomb, Université de Montpellier, CNRS, Montpellier F-34095, France
| | - Shiwang Cheng
- Department of Chemical Engineering and Materials Science, Michigan State University, East Lancing, Michigan 48824, United States
| | - Airat Khamzin
- Institute of Physics, Kazan Federal University, Kremlevskaya Str. 18, Kazan, Tatarstan 420008, Russia
| | - Alexander Kisliuk
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Alexei P. Sokolov
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
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7
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Parekh P, Ohno S, Yusa S, Lv C, Du B, Ray D, Aswal VK, Bahadur P. Synthesis, aggregation and adsorption behaviour of a thermoresponsive pentablock copolymer. POLYM INT 2020. [DOI: 10.1002/pi.5967] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Paresh Parekh
- Chemistry Department Veer Narmad South Gujarat University Surat India
| | - Sayaka Ohno
- Graduate School of Engineering University of Hyogo Hyogo Japan
| | - Shin‐ichi Yusa
- Graduate School of Engineering University of Hyogo Hyogo Japan
| | - Chao Lv
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering Zhejiang University Hangzhou China
| | - Binyang Du
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering Zhejiang University Hangzhou China
| | - Debes Ray
- Solid State Physics Division Bhabha Atomic Research Centre Mumbai India
| | - Vinod Kumar Aswal
- Solid State Physics Division Bhabha Atomic Research Centre Mumbai India
| | - Pratap Bahadur
- Chemistry Department Veer Narmad South Gujarat University Surat India
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8
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Zhao W, Su Y, Wen X, Wang D. Manipulating crystallization behavior of poly(ethylene oxide) by functionalized nanoparticle inclusion. POLYMER 2019. [DOI: 10.1016/j.polymer.2019.01.019] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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9
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Du X, Fang J, Zhu DM. Modified Sauerbrey equation: a facile method to quantitatively probe the conformation of isolated molecules at solid–liquid interfaces. Analyst 2018; 143:3209-3216. [DOI: 10.1039/c8an00487k] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
It is found that a quartz crystal microbalance signal is proportional to the product of mass and intrinsic viscosity of molecules at solid–liquid interfaces, with a constant coefficient. This relationship provides a convenient way to semi-quantitatively probe the conformation of a discrete polymer at solid–liquid interfaces.
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Affiliation(s)
- Xianbin Du
- State Key Laboratory of Particle Detection and Electronics
- University of Science and Technology of China
- Hefei 230026
- China
- Department of Modern Physics
| | - Jiajie Fang
- State Key Laboratory of Particle Detection and Electronics
- University of Science and Technology of China
- Hefei 230026
- China
- Department of Modern Physics
| | - Da-Ming Zhu
- Department of Physics and Astronomy
- University of Missouri-Kansas City
- Kansas City
- USA
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10
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Du X, Tang X, Fang J, Zhu DM. Quartz crystal resonator study of glass transitions in polyvinylbutyral (PVB) films. J Appl Polym Sci 2017. [DOI: 10.1002/app.45433] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Xianbin Du
- State Key Laboratory of Particle Detection and Electronics; University of Science and Technology of China; Hefei China
- Department of Modern Physics; University of Science and Technology of China; Hefei China
| | - Xuefeng Tang
- State Key Laboratory of Particle Detection and Electronics; University of Science and Technology of China; Hefei China
- Department of Modern Physics; University of Science and Technology of China; Hefei China
| | - Jiajie Fang
- State Key Laboratory of Particle Detection and Electronics; University of Science and Technology of China; Hefei China
- Department of Modern Physics; University of Science and Technology of China; Hefei China
| | - Da-Ming Zhu
- State Key Laboratory of Particle Detection and Electronics; University of Science and Technology of China; Hefei China
- Department of Modern Physics; University of Science and Technology of China; Hefei China
- Department of Physics and Astronomy; University of Missouri-Kansas City; Kansas City Missouri 64110
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11
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Zajforoushan Moghaddam S, Zhu K, Nyström B, Thormann E. Thermo-responsive diblock and triblock cationic copolymers at the silica/aqueous interface: A QCM-D and AFM study. J Colloid Interface Sci 2017. [DOI: 10.1016/j.jcis.2017.06.044] [Citation(s) in RCA: 7] [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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12
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Vasicek TW, Jenkins SV, Vaz L, Chen J, Stenken JA. Thermoresponsive nanoparticle agglomeration/aggregation in salt solutions: Dependence on graft density. J Colloid Interface Sci 2017; 506:338-345. [DOI: 10.1016/j.jcis.2017.07.044] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Revised: 07/11/2017] [Accepted: 07/15/2017] [Indexed: 01/30/2023]
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13
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Khan AU, Scruggs C, Hicks D, Liu G. Two-Dimensional Plasmonic Nanoparticle as a Nanoscale Sensor to Probe Polymer Brush Formation. Anal Chem 2017. [PMID: 28629218 DOI: 10.1021/acs.analchem.7b01361] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Assad U. Khan
- Department
of Chemistry, ‡Materials Science and Engineering, and §Macromolecules Innovation Institute, Virginia Tech, 800 West Campus Drive, Blacksburg, Virginia 24061, United States
| | - Clayton Scruggs
- Department
of Chemistry, ‡Materials Science and Engineering, and §Macromolecules Innovation Institute, Virginia Tech, 800 West Campus Drive, Blacksburg, Virginia 24061, United States
| | - David Hicks
- Department
of Chemistry, ‡Materials Science and Engineering, and §Macromolecules Innovation Institute, Virginia Tech, 800 West Campus Drive, Blacksburg, Virginia 24061, United States
| | - Guoliang Liu
- Department
of Chemistry, ‡Materials Science and Engineering, and §Macromolecules Innovation Institute, Virginia Tech, 800 West Campus Drive, Blacksburg, Virginia 24061, United States
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14
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Sedaghat Doost A, Sinnaeve D, De Neve L, Van der Meeren P. Influence of non-ionic surfactant type on the salt sensitivity of oregano oil-in-water emulsions. Colloids Surf A Physicochem Eng Asp 2017. [DOI: 10.1016/j.colsurfa.2017.04.066] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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15
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Yu Z, Lin S, Liu G, Hu J, Zhang P, Tu Y, Zou H, Wei Y, Gao Z. Highly dispersible silver nanowires via a diblock copolymer approach for potential application in transparent conductive composites. NEW J CHEM 2017. [DOI: 10.1039/c7nj00178a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A facile and reproducible strategy for fabricating highly dispersible silver nanowires (AgNWs) in nonalcoholic organic solvents using diblock copolymer micelles.
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Affiliation(s)
- Zhiwei Yu
- Guangzhou Institute of Chemistry
- Chinese Academy of Sciences
- Guangzhou
- P. R. China
- Key Laboratory of Cellulose and Lignocellulosics Chemistry, Chinese Academy of Sciences
| | - Shudong Lin
- Guangzhou Institute of Chemistry
- Chinese Academy of Sciences
- Guangzhou
- P. R. China
- Key Laboratory of Cellulose and Lignocellulosics Chemistry, Chinese Academy of Sciences
| | - Guojun Liu
- Guangzhou Institute of Chemistry
- Chinese Academy of Sciences
- Guangzhou
- P. R. China
- Key Laboratory of Cellulose and Lignocellulosics Chemistry, Chinese Academy of Sciences
| | - Jiwen Hu
- Guangzhou Institute of Chemistry
- Chinese Academy of Sciences
- Guangzhou
- P. R. China
- Key Laboratory of Cellulose and Lignocellulosics Chemistry, Chinese Academy of Sciences
| | - Pei Zhang
- Guangzhou Institute of Chemistry
- Chinese Academy of Sciences
- Guangzhou
- P. R. China
- Key Laboratory of Cellulose and Lignocellulosics Chemistry, Chinese Academy of Sciences
| | - Yuanyuan Tu
- Guangzhou Institute of Chemistry
- Chinese Academy of Sciences
- Guangzhou
- P. R. China
- Key Laboratory of Cellulose and Lignocellulosics Chemistry, Chinese Academy of Sciences
| | - Hailiang Zou
- Guangzhou Institute of Chemistry
- Chinese Academy of Sciences
- Guangzhou
- P. R. China
- Key Laboratory of Cellulose and Lignocellulosics Chemistry, Chinese Academy of Sciences
| | - Yanlong Wei
- Guangzhou Institute of Chemistry
- Chinese Academy of Sciences
- Guangzhou
- P. R. China
- Key Laboratory of Cellulose and Lignocellulosics Chemistry, Chinese Academy of Sciences
| | - Zhenzhong Gao
- College of Materials and Energy
- South China Agriculture University
- Guangzhou
- P. R. China
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16
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Zheng J, Wang L, Zeng X, Zheng X, Zhang Y, Liu S, Shi X, Wang Y, Huang X, Ren L. Controlling the Integration of Polyvinylpyrrolidone onto Substrate by Quartz Crystal Microbalance with Dissipation To Achieve Excellent Protein Resistance and Detoxification. ACS APPLIED MATERIALS & INTERFACES 2016; 8:18684-18692. [PMID: 27363467 DOI: 10.1021/acsami.6b04348] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Blood purification systems, in which the adsorbent removes exogenous and endogenous toxins from the blood, are widely used in clinical practice. To improve the protein resistance of and detoxification by the adsorbent, researchers can modify the adsorbent with functional molecules, such as polyvinylpyrrolidone (PVP). However, achieving precise control of the functional molecular density, which is crucial to the activity of the adsorbent, remains a significant challenge. In the present study, we prepared a model system for blood purification adsorbents in which we controlled the integration density of PVP molecules of different molecular weights on an Au substrate by quartz crystal microbalance with dissipation (QCM-D). We characterized the samples with atomic force microscopy, X-ray photoelectron spectroscopy, and QCM-D and found that the molecular density and the chain length of the PVP molecules played important roles in determining the properties of the sample. At the optimal condition, the modified sample demonstrated strong resistance to plasma proteins, decreasing the adsorption of human serum albumin (HSA) and fibrinogen (Fg) by 92.5% and 79.2%, respectively. In addition, the modified sample exhibited excellent detoxification, and the adsorption of bilirubin increased 2.6-fold. Interestingly, subsequent atomistic molecular dynamics simulations indicated that the favorable interactions between PVP and bilirubin were dominated by hydrophobic interactions. An in vitro platelet adhesion assay showed that the adhesion of platelets on the sample decreased and that the platelets were maintained in an inactivated state. The CCK-8 assay indicated that the modified sample exhibited negligible cytotoxicity to L929 cells. These results demonstrated that our method holds great potential for the modification of adsorbents in blood purification systems.
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Affiliation(s)
- Jian Zheng
- School of Materials Science and Engineering, South China University of Technology , Guangzhou 510641, China
- National Engineering Research Center for Tissue Restoration & Reconstruction, South China University of Technology , Guangzhou 510006, China
| | - Lin Wang
- National Engineering Research Center for Tissue Restoration & Reconstruction, South China University of Technology , Guangzhou 510006, China
| | | | | | - Yan Zhang
- School of Materials Science and Engineering, South China University of Technology , Guangzhou 510641, China
| | - Sa Liu
- School of Materials Science and Engineering, South China University of Technology , Guangzhou 510641, China
| | - Xuetao Shi
- National Engineering Research Center for Tissue Restoration & Reconstruction, South China University of Technology , Guangzhou 510006, China
| | - Yingjun Wang
- School of Materials Science and Engineering, South China University of Technology , Guangzhou 510641, China
| | | | - Li Ren
- School of Materials Science and Engineering, South China University of Technology , Guangzhou 510641, China
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17
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Zhang S, Vi T, Luo K, Koberstein JT. Kinetics of Polymer Interfacial Reactions: Polymer Brush Formation by Click Reactions of Alkyne End-Functional Polymers with Azide-Functional Substrates. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b01220] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Shuo Zhang
- Department of Chemical Engineering, Columbia University, New York, New York 10027, United States
| | - Thu Vi
- Department of Chemical Engineering, Columbia University, New York, New York 10027, United States
| | - Kai Luo
- Department of Chemical Engineering, Columbia University, New York, New York 10027, United States
| | - Jeffrey T. Koberstein
- Department of Chemical Engineering, Columbia University, New York, New York 10027, United States
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18
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Xu Y, Shi K, Zhao S, Guo X, Wang J. Block length determines the adsorption dynamics mode of triblock copolymers to a hydrophobic surface. Chem Eng Sci 2016. [DOI: 10.1016/j.ces.2015.11.045] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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19
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Li J, Zhang Z, Zhou X, Chen T, Nie J, Du B. PNIPAmx–PPO36–PNIPAmx thermo-sensitive triblock copolymers: chain conformation and adsorption behavior on a hydrophobic gold surface. Phys Chem Chem Phys 2016; 18:519-28. [DOI: 10.1039/c5cp06079f] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The presence of the PNIPAm block is not a sufficient condition for the complex adsorption behavior of PNIPAmx–PPO36–PNIPAmx triblock copolymers.
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Affiliation(s)
- Jianyuan Li
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science & Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Zhijun Zhang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science & Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Xianjing Zhou
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science & Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Tongquan Chen
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science & Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Jingjing Nie
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- China
| | - Binyang Du
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science & Engineering
- Zhejiang University
- Hangzhou 310027
- China
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20
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Ley KJ, Shaw LA, Yiapanis G, MacLaughlin S, Yarovsky I. Effect of substrate on the responsive behaviour of functionalised surfaces: insights from molecular simulation. MOLECULAR SIMULATION 2015. [DOI: 10.1080/08927022.2015.1083100] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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21
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Jin J, Han Y, Zhang C, Liu J, Jiang W, Yin J, Liang H. Effect of grafted PEG chain conformation on albumin and lysozyme adsorption: A combined study using QCM-D and DPI. Colloids Surf B Biointerfaces 2015; 136:838-44. [PMID: 26546889 DOI: 10.1016/j.colsurfb.2015.10.025] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Revised: 09/20/2015] [Accepted: 10/19/2015] [Indexed: 12/23/2022]
Abstract
In this study, elucidation of protein adsorption mechanism is performed using dual polarization interferometry (DPI) and quartz crystal microbalance with dissipation (QCM-D) to study adsorption behaviors of bovine serum albumin (BSA) and lysozyme (LYZ) on poly (ethylene glycol) (PEG) layers. From the analysis of DPI, PEG2000 and PEG5000 show tight and loose mushroom conformations, respectively. Small amount of LYZ could displace the interfacial water surrounding the tight mushroomed PEG2000 chains by hydrogen bond attraction, leading to protein adsorption. The loose mushroomed PEG5000 chains exhibit a more flexible conformation and high elastic repulsion energy that could prevent protein adsorption of all BSA and most of LYZ. From the analysis of QCM, PEG2000 and PEG5000 show tight and extended brush conformations. The LYZ adsorbed mass has critical regions of PEG2000 (0.19 chain/nm(2)) and PEG5000 (0.16 chain/nm(2)) graft density. When graft density of PEG is higher than the critical region (brush conformations), the attraction of hydrogen bonds between PEG and LYZ is the dominant factor. When graft density of PEG is lower than the critical region (mushroom conformations), elastic repulsion between PEG and proteins is driven by the high conformation entropy of PEG chains, which is the dominant force of steric repulsion in PEG-protein systems. Therefore, the adsorption of BSA is suppressed by the high elastic repulsion energy of PEG chains, whereas the adsorption of LYZ is balanced by the interactions between the repulsion of entropy elasticity and the attraction of hydrogen bonds.
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Affiliation(s)
- Jing Jin
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China
| | - Yuanyuan Han
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China
| | - Chang Zhang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China
| | - Jingchuan Liu
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China
| | - Wei Jiang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China.
| | - Jinghua Yin
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China.
| | - Haojun Liang
- Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, PR China
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22
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Zhan J, Wang L, Liu S, Chen J, Ren L, Wang Y. Antimicrobial Hyaluronic Acid/Poly(amidoamine) Dendrimer Multilayer on Poly(3-hydroxybutyrate-co-4-hydroxybutyrate) Prepared by a Layer-by-Layer Self-Assembly Method. ACS APPLIED MATERIALS & INTERFACES 2015; 7:13876-13881. [PMID: 26061897 DOI: 10.1021/acsami.5b02262] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
In this article, we prepared hyaluronic acid/poly(amidoamine) dendrimer (HA/PAMAM) multilayers on a poly(3-hydroxybutyrate-co-4-hydroxybutyrate) [P(3HB-4HB)] substrate by a layer-by-layer self-assembly method for antimicrobial biomaterials. The results of ζ potential and quartz crystal microbalance with dissipation (QCM-D) showed that HA/PAMAM multilayers could be formed on the substrate layer by layer. We used QCM-D to show that both the HA outer layer and the PAMAM outer layer exhibited good protein-resistant activity to bovine serum albumin and bacterial antiadhesion activity to Escherichia coli. By a live/dead assay and the colony counting method, we found that the PAMAM outer layer could also exhibit bactericidal activity against E. coli, while the HA outer layer had no bactericidal activity. Both the bacterial antiadhesion activity and the bactericidal activity of the samples could be maintained even after storage in phosphate-buffered saline for up to 14 days. An in vitro MTT assay showed that the multilayers had no cytotoxicity to L929 cells, and HA molecules in the multilayers could improve the biocompatibility of the film.
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Affiliation(s)
- Jiezhao Zhan
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China
- National Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou 510006, China
- Guangdong Province Key Laboratory of Biomedical Engineering, South China University of Technology, Guangzhou 510006, China
| | - Lin Wang
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China
- National Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou 510006, China
- Guangdong Province Key Laboratory of Biomedical Engineering, South China University of Technology, Guangzhou 510006, China
| | - Sa Liu
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China
- National Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou 510006, China
- Guangdong Province Key Laboratory of Biomedical Engineering, South China University of Technology, Guangzhou 510006, China
| | - Junjian Chen
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China
- National Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou 510006, China
- Guangdong Province Key Laboratory of Biomedical Engineering, South China University of Technology, Guangzhou 510006, China
| | - Li Ren
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China
- National Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou 510006, China
- Guangdong Province Key Laboratory of Biomedical Engineering, South China University of Technology, Guangzhou 510006, China
| | - Yingjun Wang
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China
- National Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou 510006, China
- Guangdong Province Key Laboratory of Biomedical Engineering, South China University of Technology, Guangzhou 510006, China
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23
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Morphology and thermoresponsive behavior of hybrid micelles of polystyrene-b-poly((N-isopropyl acrylamide)-co-(4-vinylbenzyl chloride)) with Prussian blue. CHINESE JOURNAL OF POLYMER SCIENCE 2015. [DOI: 10.1007/s10118-015-1656-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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24
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Fang J, Ren C, Zhu T, Wang K, Jiang Z, Ma Y. Comparison of the different responses of surface plasmon resonance and quartz crystal microbalance techniques at solid–liquid interfaces under various experimental conditions. Analyst 2015; 140:1323-36. [DOI: 10.1039/c4an01756k] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The different characteristics of surface plasmon resonance and quartz crystal microbalance techniques under different experimental scenarios are discussed.
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Affiliation(s)
- Jiajie Fang
- Collaborative Innovation Center of Advanced Microstructures and Department of Physics
- Nanjing University
- Nanjing 210093
- China
| | - Chunlai Ren
- Collaborative Innovation Center of Advanced Microstructures and Department of Physics
- Nanjing University
- Nanjing 210093
- China
| | - Tao Zhu
- Collaborative Innovation Center of Advanced Microstructures and Department of Physics
- Nanjing University
- Nanjing 210093
- China
| | - Kaiyu Wang
- Collaborative Innovation Center of Advanced Microstructures and Department of Physics
- Nanjing University
- Nanjing 210093
- China
| | - Zhongying Jiang
- Collaborative Innovation Center of Advanced Microstructures and Department of Physics
- Nanjing University
- Nanjing 210093
- China
- School of Electronics and Information and College of Chemistry and Biological Science
| | - Yuqiang Ma
- Collaborative Innovation Center of Advanced Microstructures and Department of Physics
- Nanjing University
- Nanjing 210093
- China
- Laboratory of Soft Condensed Matter Physics and Interdisciplinary Research
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25
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Immobilizing PEO–PPO–PEO triblock copolymers on hydrophobic surfaces and its effect on protein and platelet: A combined study using QCM-D and DPI. Colloids Surf B Biointerfaces 2014; 123:892-9. [DOI: 10.1016/j.colsurfb.2014.10.038] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2014] [Revised: 09/20/2014] [Accepted: 10/20/2014] [Indexed: 01/06/2023]
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26
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Farasat R, Vyazovkin S. Coil-to-Globule Transition of Poly(N-isopropylacrylamide) in Aqueous Solution: Kinetics in Bulk and Nanopores. MACROMOL CHEM PHYS 2014. [DOI: 10.1002/macp.201400354] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Reza Farasat
- Department of Chemistry; University of Alabama at Birmingham; 901 S. 14 Street Birmingham AL 35294 USA
| | - Sergey Vyazovkin
- Department of Chemistry; University of Alabama at Birmingham; 901 S. 14 Street Birmingham AL 35294 USA
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27
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Min X, Han P, Yang H, Kim H, Tong M. Influence of sulfate and phosphate on the deposition of plasmid DNA on silica and alumina-coated surfaces. Colloids Surf B Biointerfaces 2014; 118:83-9. [DOI: 10.1016/j.colsurfb.2014.03.039] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2014] [Revised: 03/21/2014] [Accepted: 03/23/2014] [Indexed: 10/25/2022]
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28
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Chen T, Lu Y, Chen T, Zhang X, Du B. Adsorption of PNIPAmx-PEO20-PPO70-PEO20-PNIPAmx pentablock terpolymer on gold surfaces: effects of concentration, temperature, block length, and surface properties. Phys Chem Chem Phys 2014; 16:5536-44. [DOI: 10.1039/c3cp54535k] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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29
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Wernersson E, Linse P. Spreading and brush formation by end-grafted bottle-brush polymers with adsorbing side chains. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:10455-10462. [PMID: 23924341 DOI: 10.1021/la4021959] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
We investigate structural and thermodynamic properties of surface-grafted layers of model "bottle-brush" polymers by Monte Carlo simulation. The polymers consist of a longer main chain densely grafted with shorter side chains, of which the latter have some degree of affinity to the surface. Our focus is on the effect of the side-chain surface affinity on the brush properties, which we study in terms of compression isotherms spanning a broad range of grafting densities. For low grafting densities, side-chain adsorption causes the polymers to spread on the surface. As the grafting density is increased, the layer goes through a "pancake-to-brush" transition to form a brush with the main chains aligned perpendicular to the surface. We find that side-chain adsorption is decisive for the structure of dilute layers and in the transition region but has little influence on the properties of dense brushes. The close relation between compression and adsorption isotherms is discussed, and the implications of side-chain adsorption for the ability of the polymer to form a dense brush are investigated. This analysis suggests that side-chain surface affinity alone will not give rise to "brush of bottle-brushes" layers by adsorption of polymers from solution, in agreement with recent experimental results.
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Affiliation(s)
- Erik Wernersson
- Physical Chemistry, Department of Chemistry, Lund University, Box 124, SE-221 00 Lund, Sweden.
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30
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Lu Y, Zhang X, Fan Z, Du B. Adsorption of PNIPAm110-PEO100-PPO65-PEO100-PNIPAm110 pentablock terpolymer on hydrophobic gold. POLYMER 2012. [DOI: 10.1016/j.polymer.2012.06.022] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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31
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Azzaroni O. Polymer brushes here, there, and everywhere: Recent advances in their practical applications and emerging opportunities in multiple research fields. ACTA ACUST UNITED AC 2012. [DOI: 10.1002/pola.26119] [Citation(s) in RCA: 306] [Impact Index Per Article: 25.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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32
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Kumashiro Y, Fukumori K, Akiyama Y, Itoga K, Sakai K, Yamato M, Okano T. Asymmetric Behavior of Temperature-Responsive Poly(N-isopropylacrylamide) Ultrathin Layers Observed by Atomic Force Microscopy. MACROMOL CHEM PHYS 2011. [DOI: 10.1002/macp.201100158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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33
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Zoppe JO, Österberg M, Venditti RA, Laine J, Rojas OJ. Surface Interaction Forces of Cellulose Nanocrystals Grafted with Thermoresponsive Polymer Brushes. Biomacromolecules 2011; 12:2788-96. [DOI: 10.1021/bm200551p] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Justin O. Zoppe
- Department of Forest Biomaterials, North Carolina State University, Campus Box 8005, Raleigh, North Carolina, United States
| | - Monika Österberg
- Department of Forest Products Technology, School of Chemical Technology, Aalto University, P.O. Box 16300, Aalto FIN-00076, Finland
| | - Richard A. Venditti
- Department of Forest Biomaterials, North Carolina State University, Campus Box 8005, Raleigh, North Carolina, United States
| | - Janne Laine
- Department of Forest Products Technology, School of Chemical Technology, Aalto University, P.O. Box 16300, Aalto FIN-00076, Finland
| | - Orlando J. Rojas
- Department of Forest Biomaterials, North Carolina State University, Campus Box 8005, Raleigh, North Carolina, United States
- Department of Forest Products Technology, School of Chemical Technology, Aalto University, P.O. Box 16300, Aalto FIN-00076, Finland
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34
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Zdyrko B, Luzinov I. Polymer Brushes by the “Grafting to” Method. Macromol Rapid Commun 2011; 32:859-69. [DOI: 10.1002/marc.201100162] [Citation(s) in RCA: 225] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2011] [Indexed: 11/08/2022]
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35
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Aydin HM, Hu B, Sulé Suso J, El Haj A, Yang Y. Study of tissue engineered bone nodules by Fourier transform infrared spectroscopy. Analyst 2011; 136:775-80. [DOI: 10.1039/c0an00530d] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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36
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Hou Y, Liu G, Wu Y, Zhang G. Reentrant behavior of grafted poly(sodium styrenesulfonate) chains investigated with a quartz crystal microbalance. Phys Chem Chem Phys 2011; 13:2880-6. [DOI: 10.1039/c0cp01994a] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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37
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Synthesis of thermoresponsive unimolecular polymeric micelles with a hydrophilic hyperbranched poly(glycidol) core. Polym J 2010. [DOI: 10.1038/pj.2010.93] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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38
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Shen Y, Kim H, Tong M, Li Q. Influence of solution chemistry on the deposition and detachment kinetics of RNA on silica surfaces. Colloids Surf B Biointerfaces 2010; 82:443-9. [PMID: 21030219 DOI: 10.1016/j.colsurfb.2010.09.018] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2010] [Revised: 09/21/2010] [Accepted: 09/23/2010] [Indexed: 11/17/2022]
Abstract
The deposition kinetics of RNA extracted from both virus and bacteria on silica surfaces were examined in both monovalent (NaCl) and divalent (CaCl(2)) solutions under a wide range of environmentally relevant ionic strength and pH conditions by utilizing a quartz crystal microbalance with dissipation (QCM-D). To better understand the RNA deposition mechanisms, QCM-D data were complemented by diffusion coefficients and zeta potentials of RNA as a function of examined solution chemistry conditions. Favorable deposition of RNA on poly-l-lysine-coated (positively charged) silica surfaces was governed by the convective-diffusive transport of RNA to the surfaces. The deposition kinetics of RNA on bare silica surfaces were controlled by classic Derjaguin-Landau-Verwey-Overbeek (DLVO) interactions. The presence of divalent cations (Ca(2+)) in solutions greatly enhanced the deposition kinetics of RNA on silica surfaces. Solution pH also affected the deposition behavior of RNA on silica surfaces. Release experiments showed that detachment of RNA from silica surfaces was significant in NaCl solutions, whereas, the deposited RNA on silica surfaces in CaCl(2) solutions was more likely to be irreversible.
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Affiliation(s)
- Yun Shen
- The Key Laboratory of Water and Sediment Sciences, Ministry of Education, College of Environmental Sciences and Engineering, Peking University, Yi He Yuan Road #5, Haidian District, Beijing 100871, PR China
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39
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Howard SC, Craig VSJ, FitzGerald PA, Wanless EJ. Swelling and collapse of an adsorbed pH-responsive film-forming microgel measured by optical reflectometry and QCM. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:14615-14623. [PMID: 20795665 DOI: 10.1021/la1023218] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
The swelling and deswelling of a pH-responsive electrosterically stabilized poly[2-(diethylamino)ethyl methacrylate] microgel adsorbed to silica surfaces have been quantified using the techniques of optical reflectometry (OR) and quartz crystal microbalance (QCM). It is shown that by utilizing and comparing OR measurements performed on wafers with differing oxide layer thicknesses the adsorbed amount and film thickness of the adsorbed microgel in both the swollen and deswollen forms can be determined. Also, the kinetics of the transition can be followed, revealing that collapse is a slower process than swelling, and direct support is provided for the formation of a dense outer layer or skin during collapse that slows the deswelling process. It is shown that the adsorption of this low glass transition temperature film-forming microgel latex is robust to changes in pH after an initial swelling event which is responsible for desorption of a large and variable fraction of the initially adsorbed polymer. Subsequent deswelling and swelling of the adsorbed film indicates that adsorption to a surface greatly hinders the volumetric swelling capacity of the microgel film. In its swollen state the film is only 3-4 times thicker than the collapsed film, whereas for particles in bulk the volume increases by a factor of 20 upon protonation of the tertiary amine residues. QCM results show that even in the collapsed form the film contains a considerable amount of water. Further, the viscoelasticity of the deswollen film is similar to that of the swollen film, suggesting that the degree of cross-linking is the primary determinant of viscoelasticity.
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Affiliation(s)
- Shaun C Howard
- Department of Applied Mathematics, Research School of Physics and Engineering, Australian National University, Canberra, ACT 0200, Australia
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40
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Ishida N, Biggs S. Effect of Grafting Density on Phase Transition Behavior for Poly(N-isopropylacryamide) Brushes in Aqueous Solutions Studied by AFM and QCM-D. Macromolecules 2010. [DOI: 10.1021/ma101113g] [Citation(s) in RCA: 74] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Naoyuki Ishida
- School of Process, Environmental and Materials Engineering, University of Leeds, Leeds LS2 9JT, U.K
- Photonics Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba 306-8565, Japan
| | - Simon Biggs
- School of Process, Environmental and Materials Engineering, University of Leeds, Leeds LS2 9JT, U.K
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41
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DU BY, FAN X, CAO Z, GUO XL. Applications and Outlooks of Quartz Crystal Microbalance in Studies of Polymer Thin Films. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2010. [DOI: 10.3724/sp.j.1096.2010.00752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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42
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Du B, Mei A, Yang Y, Zhang Q, Wang Q, Xu J, Fan Z. Synthesis and micelle behavior of (PNIPAm-PtBA-PNIPAm)m amphiphilic multiblock copolymer. POLYMER 2010. [DOI: 10.1016/j.polymer.2010.06.007] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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43
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Surface interaction forces mediated by poly(N-isopropylacrylamide) (PNIPAM) polymers: effects of concentration and temperature. Colloid Polym Sci 2010. [DOI: 10.1007/s00396-010-2243-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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44
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Bünsow J, Enzenberg A, Pohl K, Schuhmann W, Johannsmann D. Electrochemically Induced Formation of Surface-Attached Temperature-Responsive Hydrogels. Amperometric Glucose Sensors with Tunable Sensor Characteristics. ELECTROANAL 2010. [DOI: 10.1002/elan.200900478] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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45
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Jia X, Jiang X, Liu R, Yin J. Poly(N
-isopropylacrylamide) Brush Fabricated by Surface-Initiated Photopolymerization and its Response to Temperature. MACROMOL CHEM PHYS 2009. [DOI: 10.1002/macp.200900291] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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46
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Ohlsson G, Langhammer C, Zorić I, Kasemo B. A nanocell for quartz crystal microbalance and quartz crystal microbalance with dissipation-monitoring sensing. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2009; 80:083905. [PMID: 19725665 DOI: 10.1063/1.3202207] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
A novel device for nanometer-confinement of soft matter in one dimension (1D) is presented. This nanocell, with very large (up to 10(6):1) cell-radius to cell-height ratio, is tailored as an accessory for quartz crystal microbalance (QCM) and QCM with dissipation-monitoring (QCM-D) sensing to study internal and interfacial energy dissipation phenomena in highly confined (in 1D) soft matter and fluid films (patent pending). The cell consists of two macroscopic plates (diameter of 9 mm), a top (the "lid") and a bottom (the QCM-D sensor), separated by appropriate spacers with heights ranging from below 100 nm up to 10 microm. The surfaces of both the lid and the bottom plate can be mechanically or/and chemically modified, prior to cell assembly, in order to tailor desired interfacial properties for the experiment. The cell is mounted on a standard QCM-D sensor, an AT-cut quartz crystal (the quartz crystal is cut at an angle of 35 degrees from its ZX-plane), forming the bottom plate. We illustrate theoretically and experimentally, as application examples, the use of this device for studies of dynamic mass loading and internal energy dissipation processes in thin films of ethylene glycol respective thin liquid crystal films around the nematic-isotropic phase transition.
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Affiliation(s)
- Gabriel Ohlsson
- Department of Applied Physics, Chalmers University of Technology, SE-412 96 Göteborg, Sweden.
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47
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Nejadnik MR, Olsson ALJ, Sharma PK, van der Mei HC, Norde W, Busscher HJ. Adsorption of pluronic F-127 on surfaces with different hydrophobicities probed by quartz crystal microbalance with dissipation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2009; 25:6245-6249. [PMID: 19374344 DOI: 10.1021/la9001169] [Citation(s) in RCA: 74] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Triblock copolymers of polyethylene oxide (PEO) and polypropylene oxide (PPO), that is, PEOn-PPOm-PEOn, better known as Pluronic can adsorb to surfaces in either a pancake or a brushlike configuration. The brushlike configuration is advantageous in numerous applications, since it constitutes a surface repellent to proteins and microorganisms. The conformation of the adsorbed Pluronic layer depends on the hydrophobicity of the substratum surface, but the hydrophobicity threshold above which a brushlike conformation is adopted is unknown. Therefore, the aim of this study is to investigate Pluronic F-127 adsorption on surfaces with different hydrophobicities using a quartz crystal microbalance with dissipation. Adsorption in a brushlike conformation occurred on surfaces with a water contact angle above 80 degrees , as inferred from the thickness, viscosity, and elasticity of the adsorbed layer. The concentration of Pluronic F-127 in solution affected only the kinetics of adsorption and not the final layer thickness or conformation of adsorbed Pluronic molecules.
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Affiliation(s)
- M Reza Nejadnik
- Department of Biomedical Engineering, University Medical Center Groningen and University of Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands
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48
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Ladhe AR, Bhattacharyya D. ADSORPTION OF ETHOXYLATED NONIONIC SURFACTANTS FROM SILOXANE-BASED SOLVENT AND AQUEOUS SYSTEMS: USE OF QCM AND MODEL POLYMERIC SURFACES. CHEM ENG COMMUN 2009. [DOI: 10.1080/00986440802668331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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49
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Cavalieri F, Postma A, Lee L, Caruso F. Assembly and functionalization of DNA-polymer microcapsules. ACS NANO 2009; 3:234-240. [PMID: 19206271 DOI: 10.1021/nn800705m] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
We report the synthesis and characterization of DNA-grafted poly(N-isopropylacrylamide) (PNIPAM) micelles, their assembly into multilayered thin films, and the subsequent generation and poly(ethylene glycol) (PEG) functionalization of DNA-PNIPAM microcapsules. Multilayer films were assembled by sequentially depositing DNA-grafted PNIPAM micelles containing the cDNA sequences polyA(30) or polyT(30) (i.e., PNIPAM-A(30) or PNIPAM-T(30)). DNA-polymer microcapsules were obtained by the alternate deposition of PNIPAM-A(30) and PNIPAM-T(30) onto silica particles, followed by removal of the template core. Upon removal of the silica core particle, shrinkage of between 30 and 50% was observed for the microcapsules. The presence of PNIPAM within the DNA-polymer hybrid film reduces the permeability of the microcapsules to macrosolutes (e.g., dextran) compared with microcapsules made solely of DNA. The hydrophobic core of the DNA-grafted PNIPAM micelles was designed to contain alkyne "click" groups, which were exploited to covalently couple azide-bearing low-fouling PEG to the DNA-PNIPAM microcapsules. The combination of hydrophobic and reactive "click" nanodomains, along with the degradability of DNA, offers a multifunctional and versatile DNA-polymer capsule system that is envisioned to find applications in the controlled delivery of therapeutics.
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Affiliation(s)
- Francesca Cavalieri
- Centre for Nanoscience and Nanotechnology, Department of Chemical and Biomolecular Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
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50
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Zhang G, Wu C. Quartz Crystal Microbalance Studies on Conformational Change of Polymer Chains at Interface. Macromol Rapid Commun 2008; 30:328-35. [DOI: 10.1002/marc.200800611] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2008] [Accepted: 11/03/2008] [Indexed: 11/07/2022]
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