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Swelling of Poly(methyl acrylate) Brushes in Acetone Vapor

[Image: see text] Sensor platforms can benefit from the incorporation of polymer brushes since brushes can concentrate the analyte near the sensor surface. Brushes that absorb acetone vapor are of particular interest since acetone is an important marker for biological processes. We present a simple...

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Autores principales: Horst, Rens J., Brió Pérez, Maria, Cohen, Rick, Cirelli, Marco, Dueñas Robles, Paloma S., Elshof, Maria G., Andreski, Aleksandar, Hempenius, Mark A., Benes, Nieck E., Damen, Cas, de Beer, Sissi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2020
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7558288/
https://www.ncbi.nlm.nih.gov/pubmed/32997502
http://dx.doi.org/10.1021/acs.langmuir.0c02510
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author Horst, Rens J.
Brió Pérez, Maria
Cohen, Rick
Cirelli, Marco
Dueñas Robles, Paloma S.
Elshof, Maria G.
Andreski, Aleksandar
Hempenius, Mark A.
Benes, Nieck E.
Damen, Cas
de Beer, Sissi
author_facet Horst, Rens J.
Brió Pérez, Maria
Cohen, Rick
Cirelli, Marco
Dueñas Robles, Paloma S.
Elshof, Maria G.
Andreski, Aleksandar
Hempenius, Mark A.
Benes, Nieck E.
Damen, Cas
de Beer, Sissi
author_sort Horst, Rens J.
collection PubMed
description [Image: see text] Sensor platforms can benefit from the incorporation of polymer brushes since brushes can concentrate the analyte near the sensor surface. Brushes that absorb acetone vapor are of particular interest since acetone is an important marker for biological processes. We present a simple procedure to synthesize acetone-responsive poly(methyl acrylate) brushes. Using spectroscopic ellipsometry, we show that these brushes respond within seconds and swell by more than 30% when exposed to acetone vapor. Moreover, quartz crystal microbalance measurements demonstrate that the brushes can be exploited to increase the acetone detection sensitivity of sensors by more than a factor 6. Surprisingly, we find that the swelling ratio of the brushes in acetone vapor is independent of the grafting density and the degree of polymerization of the polymers in the brush. This is qualitatively different from swelling of the same brushes in liquid environments, where the swelling ratio decreases for increasing grafting densities. Yet, it indicates that the brushes are robust and reproducible candidates for implementation in vapor sensor systems.
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spelling pubmed-75582882020-10-15 Swelling of Poly(methyl acrylate) Brushes in Acetone Vapor Horst, Rens J. Brió Pérez, Maria Cohen, Rick Cirelli, Marco Dueñas Robles, Paloma S. Elshof, Maria G. Andreski, Aleksandar Hempenius, Mark A. Benes, Nieck E. Damen, Cas de Beer, Sissi Langmuir [Image: see text] Sensor platforms can benefit from the incorporation of polymer brushes since brushes can concentrate the analyte near the sensor surface. Brushes that absorb acetone vapor are of particular interest since acetone is an important marker for biological processes. We present a simple procedure to synthesize acetone-responsive poly(methyl acrylate) brushes. Using spectroscopic ellipsometry, we show that these brushes respond within seconds and swell by more than 30% when exposed to acetone vapor. Moreover, quartz crystal microbalance measurements demonstrate that the brushes can be exploited to increase the acetone detection sensitivity of sensors by more than a factor 6. Surprisingly, we find that the swelling ratio of the brushes in acetone vapor is independent of the grafting density and the degree of polymerization of the polymers in the brush. This is qualitatively different from swelling of the same brushes in liquid environments, where the swelling ratio decreases for increasing grafting densities. Yet, it indicates that the brushes are robust and reproducible candidates for implementation in vapor sensor systems. American Chemical Society 2020-09-30 2020-10-13 /pmc/articles/PMC7558288/ /pubmed/32997502 http://dx.doi.org/10.1021/acs.langmuir.0c02510 Text en This is an open access article published under a Creative Commons Non-Commercial No Derivative Works (CC-BY-NC-ND) Attribution License (http://pubs.acs.org/page/policy/authorchoice_ccbyncnd_termsofuse.html) , which permits copying and redistribution of the article, and creation of adaptations, all for non-commercial purposes.
spellingShingle Horst, Rens J.
Brió Pérez, Maria
Cohen, Rick
Cirelli, Marco
Dueñas Robles, Paloma S.
Elshof, Maria G.
Andreski, Aleksandar
Hempenius, Mark A.
Benes, Nieck E.
Damen, Cas
de Beer, Sissi
Swelling of Poly(methyl acrylate) Brushes in Acetone Vapor
title Swelling of Poly(methyl acrylate) Brushes in Acetone Vapor
title_full Swelling of Poly(methyl acrylate) Brushes in Acetone Vapor
title_fullStr Swelling of Poly(methyl acrylate) Brushes in Acetone Vapor
title_full_unstemmed Swelling of Poly(methyl acrylate) Brushes in Acetone Vapor
title_short Swelling of Poly(methyl acrylate) Brushes in Acetone Vapor
title_sort swelling of poly(methyl acrylate) brushes in acetone vapor
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7558288/
https://www.ncbi.nlm.nih.gov/pubmed/32997502
http://dx.doi.org/10.1021/acs.langmuir.0c02510
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