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Laus M, Chiarcos R, Gianotti V, Antonioli D, Sparnacci K, Munaò G, Milano G, De Nicola A, Perego M. Evidence of Mechanochemical Control in “Grafting to” Reactions of Hydroxy-Terminated Statistical Copolymers. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c02142] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Michele Laus
- Dipartimento di Scienze e Innovazione Tecnologica (DISIT), Universitá del Piemonte Orientale “A. Avogadro”, Viale T. Michel 11, Alessandria 15121, Italy
| | - Riccardo Chiarcos
- Dipartimento di Scienze e Innovazione Tecnologica (DISIT), Universitá del Piemonte Orientale “A. Avogadro”, Viale T. Michel 11, Alessandria 15121, Italy
| | - Valentina Gianotti
- Dipartimento di Scienze e Innovazione Tecnologica (DISIT), Universitá del Piemonte Orientale “A. Avogadro”, Viale T. Michel 11, Alessandria 15121, Italy
| | - Diego Antonioli
- Dipartimento di Scienze e Innovazione Tecnologica (DISIT), Universitá del Piemonte Orientale “A. Avogadro”, Viale T. Michel 11, Alessandria 15121, Italy
| | - Katia Sparnacci
- Dipartimento di Scienze e Innovazione Tecnologica (DISIT), Universitá del Piemonte Orientale “A. Avogadro”, Viale T. Michel 11, Alessandria 15121, Italy
| | - Gianmarco Munaò
- Scienze Matematiche e Informatiche, Scienze Fisiche e Scienze della Terra, Università degli Studi di Messina, Viale F. Stagno d’Alcontres 31, Messina 98166, Italy
| | - Giuseppe Milano
- Department of Organic Materials Science, Yamagata University, 4-3-16 Jonan Yonezawa, Yamagata-ken 992-8510, Japan
| | - Antonio De Nicola
- Department of Organic Materials Science, Yamagata University, 4-3-16 Jonan Yonezawa, Yamagata-ken 992-8510, Japan
| | - Michele Perego
- CNR-IMM, Unit of Agrate Brianza, Agrate Brianza 20864, Italy
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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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4
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Ortiz R, Olsen S, Thormann E. Salt-Induced Control of the Grafting Density in Poly(ethylene glycol) Brush Layers by a Grafting-to Approach. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:4455-4464. [PMID: 29583002 DOI: 10.1021/acs.langmuir.8b00030] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
In this work, a method to obtain control of the grafting density during the formation of polymer brush layers by the grafting-to method of thiolated poly(ethylene glycol) onto gold is presented. The grafting density of the polymer chains was adjusted by adding Na2SO4 in concentrations between 0.2 and 0.9 M to the aqueous polymer solution during the grafting process. The obtained grafting densities ranged from 0.26 to 1.60 chains nm-2, as determined by surface plasmon resonance. The kinetics of the grafting process were studied in situ by a quartz crystal microbalance with dissipation, and a mushroom to brush conformational transition was observed when the polymer was grafted in the presence of Na2SO4. The transition from mushroom to brush was only observed for long periods of grafting, highlighting the importance of time to obtain high grafting densities. Finally, the prepared brush layer with the highest grafting density showed high resistance to the adsorption of bovine serum albumin, while layers with a lower grafting density showed only limited resistance.
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Affiliation(s)
- Roberto Ortiz
- Department of Chemistry , Technical University of Denmark , 2800 Kgs. Lyngby , Denmark
| | | | - Esben Thormann
- Department of Chemistry , Technical University of Denmark , 2800 Kgs. Lyngby , Denmark
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5
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Yu L, Hou Y, Cheng C, Schlaich C, Noeske PLM, Wei Q, Haag R. High-Antifouling Polymer Brush Coatings on Nonpolar Surfaces via Adsorption-Cross-Linking Strategy. ACS APPLIED MATERIALS & INTERFACES 2017; 9:44281-44292. [PMID: 29188709 DOI: 10.1021/acsami.7b13515] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A new "adsorption-cross-linking" technology is presented to generate a highly dense polymer brush coating on various nonpolar substrates, including the most inert and low-energy surfaces of poly(dimethylsiloxane) and poly(tetrafluoroethylene). This prospective surface modification strategy is based on a tailored bifunctional amphiphilic block copolymer with benzophenone units as the hydrophobic anchor/chemical cross-linker and terminal azide groups for in situ postmodification. The resulting polymer brushes exhibited long-term and ultralow protein adsorption and cell adhesion benefiting from the high density and high hydration ability of polyglycerol blocks. The presented antifouling brushes provided a highly stable and robust bioinert background for biospecific adsorption of desired proteins and bacteria after secondary modification with bioactive ligands, e.g., mannose for selective ConA and Escherichia coli binding.
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Affiliation(s)
- Leixiao Yu
- Institute of Chemistry and Biochemistry, Freie Universität Berlin , Takustr. 3, 14195 Berlin, Germany
| | - Yong Hou
- Institute of Chemistry and Biochemistry, Freie Universität Berlin , Takustr. 3, 14195 Berlin, Germany
| | - Chong Cheng
- Institute of Chemistry and Biochemistry, Freie Universität Berlin , Takustr. 3, 14195 Berlin, Germany
| | - Christoph Schlaich
- Institute of Chemistry and Biochemistry, Freie Universität Berlin , Takustr. 3, 14195 Berlin, Germany
| | - Paul-Ludwig Michael Noeske
- Fraunhofer Institute for Manufacturing Technology and Advanced Materials IFAM , Wiener Str. 12, 28359 Bremen, Germany
| | - Qiang Wei
- Institute of Chemistry and Biochemistry, Freie Universität Berlin , Takustr. 3, 14195 Berlin, Germany
- Department of Cellular Biophysics, Max-Planck Institute for Medical Research, Heidelberg , Heisenbergstr. 3, 70569 Stuttgart, Germany
- Multifunctional Biomaterials for Medicine, Helmholtz Virtual Institute , Kantstr. 55, 14513 Teltow-Seehof, Germany
| | - Rainer Haag
- Institute of Chemistry and Biochemistry, Freie Universität Berlin , Takustr. 3, 14195 Berlin, Germany
- Multifunctional Biomaterials for Medicine, Helmholtz Virtual Institute , Kantstr. 55, 14513 Teltow-Seehof, Germany
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6
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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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Rengifo HR, Grigoras C, Dach BI, Li X, Turro NJ, Lee HJ, Wu WL, Koberstein JT. Solid Phase Synthesis of Polymacromer and Copolymacromer Brushes. Macromolecules 2012. [DOI: 10.1021/ma3004168] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | | | | | | | - Hae-Jeong Lee
- Polymers Division, National Institute of Standards and Technology, Gaithersburg,
Maryland 20899, United States
| | - Wen-Li Wu
- Polymers Division, National Institute of Standards and Technology, Gaithersburg,
Maryland 20899, United States
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8
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Lee HS, Penn LS. Polymer Brushes Make Nanopore Filter Membranes Size Selective to Dissolved Polymers. Macromolecules 2009. [DOI: 10.1021/ma9019569] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hyun-Su Lee
- Department of Chemistry, Drexel University, Philadelphia, Pennsylvania 19104
| | - Lynn S. Penn
- Department of Chemistry, Drexel University, Philadelphia, Pennsylvania 19104
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9
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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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10
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Lee HS, Penn LS. In Situ Study of Polymer Brushes as Selective Barriers to Diffusion. Macromolecules 2008. [DOI: 10.1021/ma8009307] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hyun-Su Lee
- Department of Chemistry, Drexel University, 3141 Chestnut Street, Philadelphia, Pennsylvania 19104
| | - Lynn S. Penn
- Department of Chemistry, Drexel University, 3141 Chestnut Street, Philadelphia, Pennsylvania 19104
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Affiliation(s)
- L. S. Penn
- Department of Chemistry, Drexel University, Philadelphia, Pennsylvania 19104, and Department of Chemical and Materials Engineering, University of Kentucky, Lexington, Kentucky 40506
| | - H. Huang
- Department of Chemistry, Drexel University, Philadelphia, Pennsylvania 19104, and Department of Chemical and Materials Engineering, University of Kentucky, Lexington, Kentucky 40506
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12
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Yan Y, Zhou X, Ji J, Yan L, Zhang G. Adsorption of Polymeric Micelles and Vesicles on a Surface Investigated by Quartz Crystal Microbalance. J Phys Chem B 2006; 110:21055-9. [PMID: 17048925 DOI: 10.1021/jp064273d] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Polystyrene-b-poly(N-isopropylacrylamide) (PS-b-PNIPAM) diblock copolymers either with or without thiol end groups, depending on the relative length of the two blocks, form micelles or vesicles in water. The adsorption of such micelles or vesicles on a gold surface from aqueous solution was investigated in situ at 20 degrees C by use of a quartz crystal microbalance with dissipation monitoring (QCM-D). The changes in frequency (Deltaf) and dissipation (DeltaD) revealed that the micelles and vesicles without thiol groups were intact with some deformation when they were deposited on the surface. On the other hand, the micelles and vesicles with thiol groups at the end of PNIPAM blocks would transform into trilayers due to the strong interaction between thiols and gold surface.
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Affiliation(s)
- Yunfeng Yan
- Hefei National Laboratory for Physical Sciences at Microscale, Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui, China
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Liu G, Yan L, Chen X, Zhang G. Study of the kinetics of mushroom-to-brush transition of charged polymer chains. POLYMER 2006. [DOI: 10.1016/j.polymer.2006.02.091] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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14
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Cheng H, Liu G, Wang C, Zhang G, Wu C. Collapse and swelling of poly(N-isopropylacrylamide-co-sodium acrylate) copolymer brushes grafted on a flat SiO2 surface. ACTA ACUST UNITED AC 2006. [DOI: 10.1002/polb.20734] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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15
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Liu G, Cheng H, Yan L, Zhang G. Study of the Kinetics of the Pancake-to-Brush Transition of Poly(N-isopropylacrylamide) Chains. J Phys Chem B 2005; 109:22603-7. [PMID: 16853942 DOI: 10.1021/jp0538417] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The chemical grafting of thiol-terminated poly(N-isopropylacrylamide) (HS-PNIPAM) chains to a gold surface from a solution was investigated with a quartz crystal microbalance (QCM) in real time. The frequency and energy dissipation responses revealed that short HS-PNIPAM chains exhibit three-regime kinetics of the grafting. In regimes I and II, the HS-PNIPAM chains form pancake and mushroom structures, respectively. In regime III, the chains form brushes. From regime II to regime III, the mushroom-to-brush transition occurs. For the longer HS-PNIPAM chains, because of the strong segment-surface interaction, the segments cannot desorb from the surface, and the chains do not undergo a pancake-to-brush transition.
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Affiliation(s)
- Guangming Liu
- Hefei National Laboratory for Physical Sciences at Microscale, Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui, China
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