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From nanohole to ultralong straight nanochannel fabrication in graphene oxide with swift heavy ions

Porous architectures based on graphene oxide with precisely tailored nm-sized pores are attractive for biofluidic applications such as molecular sieving, DNA sequencing, and recognition-based sensing. However, the existing pore fabrication methods are complex, suffer from insufficient control over t...

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Autores principales: Olejniczak, Andrzej, Rymzhanov, Ruslan A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9935919/
https://www.ncbi.nlm.nih.gov/pubmed/36797230
http://dx.doi.org/10.1038/s41467-023-36357-8
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author Olejniczak, Andrzej
Rymzhanov, Ruslan A.
author_facet Olejniczak, Andrzej
Rymzhanov, Ruslan A.
author_sort Olejniczak, Andrzej
collection PubMed
description Porous architectures based on graphene oxide with precisely tailored nm-sized pores are attractive for biofluidic applications such as molecular sieving, DNA sequencing, and recognition-based sensing. However, the existing pore fabrication methods are complex, suffer from insufficient control over the pore density and uniformity, or are not scalable to large areas. Notably, creating vertical pores in multilayer films appears to be particularly difficult. Here, we show that uniform 6–7 nm-sized holes and straight, vertical nanochannels can be formed by simply irradiating graphene oxide (GO) films with high-energy heavy ions. Long penetration depths of energetic ions in combination with localized energy deposition and effective self-etching processes enable the creation of through pores even in 10 µm-thick GO films. This fully scalable fabrication provides a promising possibility for obtaining innovative GO track membranes.
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spelling pubmed-99359192023-02-18 From nanohole to ultralong straight nanochannel fabrication in graphene oxide with swift heavy ions Olejniczak, Andrzej Rymzhanov, Ruslan A. Nat Commun Article Porous architectures based on graphene oxide with precisely tailored nm-sized pores are attractive for biofluidic applications such as molecular sieving, DNA sequencing, and recognition-based sensing. However, the existing pore fabrication methods are complex, suffer from insufficient control over the pore density and uniformity, or are not scalable to large areas. Notably, creating vertical pores in multilayer films appears to be particularly difficult. Here, we show that uniform 6–7 nm-sized holes and straight, vertical nanochannels can be formed by simply irradiating graphene oxide (GO) films with high-energy heavy ions. Long penetration depths of energetic ions in combination with localized energy deposition and effective self-etching processes enable the creation of through pores even in 10 µm-thick GO films. This fully scalable fabrication provides a promising possibility for obtaining innovative GO track membranes. Nature Publishing Group UK 2023-02-16 /pmc/articles/PMC9935919/ /pubmed/36797230 http://dx.doi.org/10.1038/s41467-023-36357-8 Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Olejniczak, Andrzej
Rymzhanov, Ruslan A.
From nanohole to ultralong straight nanochannel fabrication in graphene oxide with swift heavy ions
title From nanohole to ultralong straight nanochannel fabrication in graphene oxide with swift heavy ions
title_full From nanohole to ultralong straight nanochannel fabrication in graphene oxide with swift heavy ions
title_fullStr From nanohole to ultralong straight nanochannel fabrication in graphene oxide with swift heavy ions
title_full_unstemmed From nanohole to ultralong straight nanochannel fabrication in graphene oxide with swift heavy ions
title_short From nanohole to ultralong straight nanochannel fabrication in graphene oxide with swift heavy ions
title_sort from nanohole to ultralong straight nanochannel fabrication in graphene oxide with swift heavy ions
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9935919/
https://www.ncbi.nlm.nih.gov/pubmed/36797230
http://dx.doi.org/10.1038/s41467-023-36357-8
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