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Push-Button Method To Create Nanopores Using a Tesla-Coil Lighter

[Image: see text] Controlled dielectric breakdown (CDB) of silicon nitride thin films immersed in electrolyte solution has been used to fabricate single nanofluidic channels with ∼10 nm and smaller diameters, nanopores, useful in single-molecule sensing and ionic circuit construction. A hand-held Te...

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Autores principales: Bandara, Y. M. Nuwan D. Y., Karawdeniya, Buddini I., Dwyer, Jason R.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2019
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6649298/
https://www.ncbi.nlm.nih.gov/pubmed/31459326
http://dx.doi.org/10.1021/acsomega.8b02660
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author Bandara, Y. M. Nuwan D. Y.
Karawdeniya, Buddini I.
Dwyer, Jason R.
author_facet Bandara, Y. M. Nuwan D. Y.
Karawdeniya, Buddini I.
Dwyer, Jason R.
author_sort Bandara, Y. M. Nuwan D. Y.
collection PubMed
description [Image: see text] Controlled dielectric breakdown (CDB) of silicon nitride thin films immersed in electrolyte solution has been used to fabricate single nanofluidic channels with ∼10 nm and smaller diameters, nanopores, useful in single-molecule sensing and ionic circuit construction. A hand-held Tesla-coil lighter was used to form nanofluidic ionic conductors through a ∼10 nm thick silicon nitride membrane. Modifications to the conventional approach were required by the low-overhead Tesla-coil-assisted method (TCAM): increased circuit resistance by including water in place of electrolyte and discrete rather than continuous voltage applications. The resulting ionic conductance could be tuned with the number of voltage applications. TCAM and conventional CDB produced nanopores with different conductance versus pH curves, suggesting different surface chemistry. Nevertheless, sensing experiments using the canonical test molecule, λ-DNA, produced signals comparable to translocation results through solid-state nanopores fabricated by other methods. Thus, the TCAM method offers flexibility in fabrication and in the properties and function of the nanoscale ionic conductors that it can generate.
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spelling pubmed-66492982019-08-27 Push-Button Method To Create Nanopores Using a Tesla-Coil Lighter Bandara, Y. M. Nuwan D. Y. Karawdeniya, Buddini I. Dwyer, Jason R. ACS Omega [Image: see text] Controlled dielectric breakdown (CDB) of silicon nitride thin films immersed in electrolyte solution has been used to fabricate single nanofluidic channels with ∼10 nm and smaller diameters, nanopores, useful in single-molecule sensing and ionic circuit construction. A hand-held Tesla-coil lighter was used to form nanofluidic ionic conductors through a ∼10 nm thick silicon nitride membrane. Modifications to the conventional approach were required by the low-overhead Tesla-coil-assisted method (TCAM): increased circuit resistance by including water in place of electrolyte and discrete rather than continuous voltage applications. The resulting ionic conductance could be tuned with the number of voltage applications. TCAM and conventional CDB produced nanopores with different conductance versus pH curves, suggesting different surface chemistry. Nevertheless, sensing experiments using the canonical test molecule, λ-DNA, produced signals comparable to translocation results through solid-state nanopores fabricated by other methods. Thus, the TCAM method offers flexibility in fabrication and in the properties and function of the nanoscale ionic conductors that it can generate. American Chemical Society 2019-01-04 /pmc/articles/PMC6649298/ /pubmed/31459326 http://dx.doi.org/10.1021/acsomega.8b02660 Text en Copyright © 2019 American Chemical Society This is an open access article published under an ACS AuthorChoice License (http://pubs.acs.org/page/policy/authorchoice_termsofuse.html) , which permits copying and redistribution of the article or any adaptations for non-commercial purposes.
spellingShingle Bandara, Y. M. Nuwan D. Y.
Karawdeniya, Buddini I.
Dwyer, Jason R.
Push-Button Method To Create Nanopores Using a Tesla-Coil Lighter
title Push-Button Method To Create Nanopores Using a Tesla-Coil Lighter
title_full Push-Button Method To Create Nanopores Using a Tesla-Coil Lighter
title_fullStr Push-Button Method To Create Nanopores Using a Tesla-Coil Lighter
title_full_unstemmed Push-Button Method To Create Nanopores Using a Tesla-Coil Lighter
title_short Push-Button Method To Create Nanopores Using a Tesla-Coil Lighter
title_sort push-button method to create nanopores using a tesla-coil lighter
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6649298/
https://www.ncbi.nlm.nih.gov/pubmed/31459326
http://dx.doi.org/10.1021/acsomega.8b02660
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