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On-Flow Immobilization of Polystyrene Microspheres on β-Cyclodextrin-Patterned Silica Surfaces through Supramolecular Host–Guest Interactions

[Image: see text] Species-specific isolation of microsized entities such as microplastics and resistant bacteria from waste streams is becoming a growing environmental challenge. By studying the on-flow immobilization of micron-sized polystyrene particles onto functionalized silica surfaces, we asce...

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Autores principales: Willems, Stan B.J., Bunschoten, Anton, Wagterveld, R. Martijn, van Leeuwen, Fijs W.B., Velders, Aldrik H.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2019
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6778913/
https://www.ncbi.nlm.nih.gov/pubmed/31487143
http://dx.doi.org/10.1021/acsami.9b11069
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author Willems, Stan B.J.
Bunschoten, Anton
Wagterveld, R. Martijn
van Leeuwen, Fijs W.B.
Velders, Aldrik H.
author_facet Willems, Stan B.J.
Bunschoten, Anton
Wagterveld, R. Martijn
van Leeuwen, Fijs W.B.
Velders, Aldrik H.
author_sort Willems, Stan B.J.
collection PubMed
description [Image: see text] Species-specific isolation of microsized entities such as microplastics and resistant bacteria from waste streams is becoming a growing environmental challenge. By studying the on-flow immobilization of micron-sized polystyrene particles onto functionalized silica surfaces, we ascertain if supramolecular host–guest chemistry in aqueous solutions can provide an alternative technology for water purification. Polystyrene particles were modified with different degrees of adamantane (guest) molecules, and silica surfaces were patterned with β-cyclodextrin (β-CD, host) through microcontact printing (μCP). The latter was exposed to solutions of these particles flowing at different speeds, allowing us to study the effect of flow rate and multivalency on particle binding to the surface. The obtained binding profile was correlated with Comsol simulations. We also observed that particle binding is directly aligned with particle’s ability to form host–guest interactions with the β-CD-patterned surface, as particle binding to the functionalized glass surface increased with higher adamantane load on the polystyrene particle surface. Because of the noncovalent character of these interactions, immobilization is reversible and modified β-CD surfaces can be recycled, which provides a positive outlook for their incorporation in water purification systems.
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spelling pubmed-67789132019-10-08 On-Flow Immobilization of Polystyrene Microspheres on β-Cyclodextrin-Patterned Silica Surfaces through Supramolecular Host–Guest Interactions Willems, Stan B.J. Bunschoten, Anton Wagterveld, R. Martijn van Leeuwen, Fijs W.B. Velders, Aldrik H. ACS Appl Mater Interfaces [Image: see text] Species-specific isolation of microsized entities such as microplastics and resistant bacteria from waste streams is becoming a growing environmental challenge. By studying the on-flow immobilization of micron-sized polystyrene particles onto functionalized silica surfaces, we ascertain if supramolecular host–guest chemistry in aqueous solutions can provide an alternative technology for water purification. Polystyrene particles were modified with different degrees of adamantane (guest) molecules, and silica surfaces were patterned with β-cyclodextrin (β-CD, host) through microcontact printing (μCP). The latter was exposed to solutions of these particles flowing at different speeds, allowing us to study the effect of flow rate and multivalency on particle binding to the surface. The obtained binding profile was correlated with Comsol simulations. We also observed that particle binding is directly aligned with particle’s ability to form host–guest interactions with the β-CD-patterned surface, as particle binding to the functionalized glass surface increased with higher adamantane load on the polystyrene particle surface. Because of the noncovalent character of these interactions, immobilization is reversible and modified β-CD surfaces can be recycled, which provides a positive outlook for their incorporation in water purification systems. American Chemical Society 2019-09-05 2019-10-02 /pmc/articles/PMC6778913/ /pubmed/31487143 http://dx.doi.org/10.1021/acsami.9b11069 Text en Copyright © 2019 American Chemical Society 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 Willems, Stan B.J.
Bunschoten, Anton
Wagterveld, R. Martijn
van Leeuwen, Fijs W.B.
Velders, Aldrik H.
On-Flow Immobilization of Polystyrene Microspheres on β-Cyclodextrin-Patterned Silica Surfaces through Supramolecular Host–Guest Interactions
title On-Flow Immobilization of Polystyrene Microspheres on β-Cyclodextrin-Patterned Silica Surfaces through Supramolecular Host–Guest Interactions
title_full On-Flow Immobilization of Polystyrene Microspheres on β-Cyclodextrin-Patterned Silica Surfaces through Supramolecular Host–Guest Interactions
title_fullStr On-Flow Immobilization of Polystyrene Microspheres on β-Cyclodextrin-Patterned Silica Surfaces through Supramolecular Host–Guest Interactions
title_full_unstemmed On-Flow Immobilization of Polystyrene Microspheres on β-Cyclodextrin-Patterned Silica Surfaces through Supramolecular Host–Guest Interactions
title_short On-Flow Immobilization of Polystyrene Microspheres on β-Cyclodextrin-Patterned Silica Surfaces through Supramolecular Host–Guest Interactions
title_sort on-flow immobilization of polystyrene microspheres on β-cyclodextrin-patterned silica surfaces through supramolecular host–guest interactions
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6778913/
https://www.ncbi.nlm.nih.gov/pubmed/31487143
http://dx.doi.org/10.1021/acsami.9b11069
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