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Metze FK, Klok HA. Supramolecular Polymer Brushes. ACS POLYMERS AU 2023. [DOI: 10.1021/acspolymersau.2c00067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Affiliation(s)
- Friederike K. Metze
- Institut des Matériaux and Institut des Sciences et Ingénierie Chimiques, Laboratoire des Polymères, École Polytechnique Fédérale de Lausanne (EPFL), Bâtiment MXD, Station 12, CH-1015 Lausanne, Switzerland
| | - Harm-Anton Klok
- Institut des Matériaux and Institut des Sciences et Ingénierie Chimiques, Laboratoire des Polymères, École Polytechnique Fédérale de Lausanne (EPFL), Bâtiment MXD, Station 12, CH-1015 Lausanne, Switzerland
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Zhu H, Masson JF, Bazuin CG. Monolayer Arrays of Nanoparticles on Block Copolymer Brush Films. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:5114-5124. [PMID: 30905161 DOI: 10.1021/acs.langmuir.8b04085] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Two-dimensional arrays of nanoparticles (NPs) have widespread applications in optical coatings, plasmonic sensors, and nanocomposites. Current bottom-up approaches that use homogeneous NP templates, such as silane self-assembled monolayers or homopolymers, are typically plagued by NP aggregation, whereas patterned block copolymer (BCP) films require specific compositions for specific NP distributions. Here, we show, using polystyrene- b-poly(4-vinylpyridine) (PS- b-P4VP) and gold NPs (AuNPs) of various sizes, that a nanothin PS- b-P4VP brushlike coating (comprised of a P4VP wetting layer and a PS overlayer), which is adsorbed onto flat substrates during their immersion in very dilute PS- b-P4VP tetrahydrofuran solutions, provides an excellent template for obtaining dense and well-dispersed AuNPs with little aggregation. These non-close-packed arrays have similar characteristics regardless of immersion time in solution (about 10-120 s studied), solution concentration below a critical value (0.1 and 0.05 mg/mL studied), and AuNP diameter (10-90 nm studied). Very dilute BCP solutions are necessary to avoid deposition, during substrate withdrawal, of additional material onto the adsorbed BCP layer, which typically leads to patterned surfaces. The PS brush coverage depends on immersion time (adsorption kinetics), but full coverage does not inhibit AuNP adsorption, which is attributed to PS molecular rearrangement during exposure to the aqueous AuNP colloidal solution. The simplicity, versatility and robustness of the method will enable applications in materials science requiring dense, unaggregated NP arrays.
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Affiliation(s)
- Hu Zhu
- Département de chimie , Université de Montréal , C.P. 6128 Succ. Centre-ville , Montréal , Québec , Canada H3C 3J7
| | - Jean-François Masson
- Département de chimie , Université de Montréal , C.P. 6128 Succ. Centre-ville , Montréal , Québec , Canada H3C 3J7
| | - C Geraldine Bazuin
- Département de chimie , Université de Montréal , C.P. 6128 Succ. Centre-ville , Montréal , Québec , Canada H3C 3J7
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Zhu H, Lussier F, Ducrot C, Bourque MJ, Spatz JP, Cui W, Yu L, Peng W, Trudeau LÉ, Bazuin CG, Masson JF. Block Copolymer Brush Layer-Templated Gold Nanoparticles on Nanofibers for Surface-Enhanced Raman Scattering Optophysiology. ACS APPLIED MATERIALS & INTERFACES 2019; 11:4373-4384. [PMID: 30615826 DOI: 10.1021/acsami.8b19161] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
A nanothin block copolymer (BCP) brush-layer film adsorbed on glass nanofibers is shown to address the long-standing challenge of forming a template for the deposition of dense and well-dispersed nanoparticles on highly curved surfaces, allowing the development of an improved nanosensor for neurotransmitters. We employed a polystyrene- block-poly(4-vinylpyridine) BCP and plasmonic gold nanoparticles (AuNPs) of 52 nm in diameter for the fabrication of the nanosensor on pulled fibers with diameters down to 200 nm. The method is simple, using only solution processes and a plasma cleaning step. The templating of the AuNPs on the nanofiber surprisingly gave rise to more than 1 order of magnitude improvement in the surface-enhanced Raman scattering (SERS) performance for 4-mercaptobenzoic acid compared to the same AuNPs aggregated on identical fibers without the use of a template. We hypothesize that a wavelength-scale lens formed by the nanofiber contributes to enhancing the SERS performance to the extent that it can melt the glass nanofiber under moderate laser power. We then show the capability of this nanosensor to detect the corelease of the neurotransmitters dopamine and glutamate from living mouse brain dopaminergic neurons with a sensitivity 1 order of magnitude greater than with aggregated AuNPs. The simplicity of fabrication and the far superior performance of the BCP-templated nanofiber demonstrates the potential of this method to efficiently pattern nanoparticles on highly curved surfaces and its application as molecular nanosensors for cell physiology.
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Affiliation(s)
| | | | | | | | - Joachim P Spatz
- Department of Cellular Biophysics , Max Planck Institute for Medical Research , Jahnstrasse 29 , D-69120 Heidelberg , Germany
- Department of Biophysical Chemistry , University of Heidelberg , INF 253 , D-69120 Heidelberg , Germany
| | - Wenli Cui
- Department of Physics and Optoelectronic Engineering , Dalian University of Technology , Dalian 116024 , China
| | - Li Yu
- Department of Physics and Optoelectronic Engineering , Dalian University of Technology , Dalian 116024 , China
| | - Wei Peng
- Department of Physics and Optoelectronic Engineering , Dalian University of Technology , Dalian 116024 , China
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Sharma S, Rafailovich MH, Sokolov J, Liu Y, Qu S, Schwarz SA, Eisenberg A. Dewetting Properties of Polystyrene Homopolymer Thin Films on Grafted Polystyrene Brush Surfaces. HIGH PERFORM POLYM 2016. [DOI: 10.1088/0954-0083/12/4/313] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
We have found that the critical molecular weight for auto dewetting of a homopolymer on a polymer brush of the same chemical composition is approximately NH = 0.5 NB, in good agreement with the mean field theory prediction. The measured velocity on the brush surface is at least an order of magnitude faster than that of the polystyrene (PS) on a homopolymer interface, with a greatly decreased dependence on the PS molecular weight. This suggests slippage as a possible mechanism for the dewetting dynamics.
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Affiliation(s)
- S Sharma
- Department of Materials Science and Engineering, SUNY Stony Brook, Stony Brook, NY 11794-2275, USA
| | | | - J Sokolov
- Department of Materials Science and Engineering, SUNY Stony Brook, Stony Brook, NY 11794-2275, USA
| | - Y Liu
- Department of Materials Science and Engineering, SUNY Stony Brook, Stony Brook, NY 11794-2275, USA; Kodak, 343 State Street, Rochester, NY 14650, USA; Kodak, 343 State Street, Rochester, NY 14650, USA
| | - S Qu
- Department of Materials Science and Engineering, SUNY Stony Brook, Stony Brook, NY 11794-2275, USA; Gore-Tex, Eau Claire, WI 54701, USA
| | - S A Schwarz
- Physics Department, Queens College, Flushing, NY 11367, USA
| | - A Eisenberg
- Department of Chemistry, McGill University, Montreal, Canada H3A 2TS
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Enright TP, Hagaman D, Kokoruz M, Coleman N, Sidorenko A. Gradient and patterned polymer brushes by photoinitiated “grafting through” approach. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/polb.21962] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Ballet W, Verbiest T, Van Beylen M, Persoons A, Samyn C. Poly(N-phenylmaleimide)- and poly(N-biphenylmaleimide)-urethanes, functionalised with NLO-phores for second-order nonlinear optical applications. Eur Polym J 2001. [DOI: 10.1016/s0014-3057(01)00152-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Mori H, Böker A, Krausch G, Müller AHE. Surface-Grafted Hyperbranched Polymers via Self-Condensing Atom Transfer Radical Polymerization from Silicon Surfaces. Macromolecules 2001. [DOI: 10.1021/ma0019048] [Citation(s) in RCA: 107] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Cameron NS, Corbierre MK, Eisenberg A. 1998 E.W.R. Steacie Award Lecture Asymmetric amphiphilic block copolymers in solution: a morphological wonderland. CAN J CHEM 1999. [DOI: 10.1139/v99-141] [Citation(s) in RCA: 279] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Asymmetric amphiphilic diblock copolymers self-assemble in selective solvents. Since 1995, when we first reported the systematic preparation of a sequence of various "crew-cut" aggregate morphologies from this class of copolymer in solution (1), we have identified a vast array of structures and have begun a detailed investigation of the thermodynamic and kinetic parameters that induce morphogenesis. Not only spheres, rods, bilayer and bicontinuous architectures, as well as inverted structures are observed, but also a selection of mixed, combined and much more complex aggregates is documented. All of these aggregates have a phase-separated insoluble core and a crew-cut soluble corona. Thus, all parameters that permit selective modification of the component of either phase or of the interface provide a window for morphological control. By carefully adjusting the polymer chain environment, it has been possible to develop a systematic understanding of morphogenic parameters, which include, among others, polymer composition, common solvent, initial concentration, temperature, type and concentration of added ions, method of preparation, and added homopolymer. To date, more than 30 publications have appeared in the literature from our group alone on this subject. One of the problems inherent with such a complicated system is the taxonomy or classification: which morphologies correspond to equilibrium positions and which are intermediate or trapped? An attempt at a logical presentation of the observed aggregates is given, preceded by a qualitative discussion of the thermodynamic framework for this system. Where possible, the transitions between morphologies are explained in the context of the thermodynamic parameters. Finally, parallels are drawn between the copolymer aggregates and biological architectures.Key words: crew-cut, morphology, block copolymer, self-assembly, amphiphile.
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Jordan R, Ulman A, Kang JF, Rafailovich MH, Sokolov J. Surface-Initiated Anionic Polymerization of Styrene by Means of Self-Assembled Monolayers. J Am Chem Soc 1999. [DOI: 10.1021/ja981348l] [Citation(s) in RCA: 336] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Rainer Jordan
- Contribution from the Department of Chemical Engineering, Chemistry and Materials Science, Polytechnic University, Six Metrotech Center, Brooklyn, New York 11201, and Department of Materials Sciences and Engineering, State University of New York at Stony Brook, Stony Brook, New York 11794-2275
| | - Abraham Ulman
- Contribution from the Department of Chemical Engineering, Chemistry and Materials Science, Polytechnic University, Six Metrotech Center, Brooklyn, New York 11201, and Department of Materials Sciences and Engineering, State University of New York at Stony Brook, Stony Brook, New York 11794-2275
| | - Jung F. Kang
- Contribution from the Department of Chemical Engineering, Chemistry and Materials Science, Polytechnic University, Six Metrotech Center, Brooklyn, New York 11201, and Department of Materials Sciences and Engineering, State University of New York at Stony Brook, Stony Brook, New York 11794-2275
| | - Miriam H. Rafailovich
- Contribution from the Department of Chemical Engineering, Chemistry and Materials Science, Polytechnic University, Six Metrotech Center, Brooklyn, New York 11201, and Department of Materials Sciences and Engineering, State University of New York at Stony Brook, Stony Brook, New York 11794-2275
| | - Jonathan Sokolov
- Contribution from the Department of Chemical Engineering, Chemistry and Materials Science, Polytechnic University, Six Metrotech Center, Brooklyn, New York 11201, and Department of Materials Sciences and Engineering, State University of New York at Stony Brook, Stony Brook, New York 11794-2275
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R. Lu J. Chapter 2. Neutron reflection study of globular protein adsorption at planar interfaces. ACTA ACUST UNITED AC 1999. [DOI: 10.1039/pc095003] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Li Z, Zhao W, Liu Y, Rafailovich MH, Sokolov J, Khougaz K, Eisenberg A, Lennox RB, Krausch G. Self-Ordering of Diblock Copolymers from Solution. J Am Chem Soc 1996. [DOI: 10.1021/ja961713d] [Citation(s) in RCA: 108] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | | | | | | | | | | | | | - G. Krausch
- Department of Materials Science Cornell University, Ithaca, New York 14853
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