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Highly sensitive optical ion sensor with ionic liquid-based colorimetric membrane/photonic crystal hybrid structure
An ionic liquid-based thin (~ 1 µm) colorimetric membrane (CM) is a key nano-tool for optical ion sensing, and a two-dimensional photonic crystal slab (PCS) is an important nano-platform for ultimate light control. For highly sensitive optical ion sensing, this report proposes a hybrid of these two...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7542176/ https://www.ncbi.nlm.nih.gov/pubmed/33028964 http://dx.doi.org/10.1038/s41598-020-73858-8 |
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author | Kawasaki, Daiki Oishi, Ryoutarou Kobayashi, Nao Mizuta, Tatsumi Sueyoshi, Kenji Hisamoto, Hideaki Endo, Tatsuro |
author_facet | Kawasaki, Daiki Oishi, Ryoutarou Kobayashi, Nao Mizuta, Tatsumi Sueyoshi, Kenji Hisamoto, Hideaki Endo, Tatsuro |
author_sort | Kawasaki, Daiki |
collection | PubMed |
description | An ionic liquid-based thin (~ 1 µm) colorimetric membrane (CM) is a key nano-tool for optical ion sensing, and a two-dimensional photonic crystal slab (PCS) is an important nano-platform for ultimate light control. For highly sensitive optical ion sensing, this report proposes a hybrid of these two optical nano-elements, namely, a CM/PCS hybrid. This structure was successfully fabricated by a simple and rapid process using nanoimprinting and spin-coating, which enabled control of the CM thickness. Optical characterization of the hybrid structure was conducted by optical measurement and simulation of the reflection spectrum, indicating that the light confined in the holes of the PCS was drastically absorbed by the CM when the spectrum overlapped with the absorption spectrum of the CM. This optical property obtained by the hybridization of CM and PCS enabled drastic improvement in the absorption sensitivity in Ca ion sensing, by ca. 78 times compared to that without PCS. Experimental and simulated investigation of the relation between the CM thickness and absorption sensitivity enhancement suggested that the controlled light in the PCS enhanced the absorption cross-section of the dye molecules within the CM based on the enhanced local density of states. This highly sensitive optical ion sensor is expected to be applied for micro-scale bio-analysis like cell-dynamics based on reflectometric Ca ion detection. |
format | Online Article Text |
id | pubmed-7542176 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-75421762020-10-08 Highly sensitive optical ion sensor with ionic liquid-based colorimetric membrane/photonic crystal hybrid structure Kawasaki, Daiki Oishi, Ryoutarou Kobayashi, Nao Mizuta, Tatsumi Sueyoshi, Kenji Hisamoto, Hideaki Endo, Tatsuro Sci Rep Article An ionic liquid-based thin (~ 1 µm) colorimetric membrane (CM) is a key nano-tool for optical ion sensing, and a two-dimensional photonic crystal slab (PCS) is an important nano-platform for ultimate light control. For highly sensitive optical ion sensing, this report proposes a hybrid of these two optical nano-elements, namely, a CM/PCS hybrid. This structure was successfully fabricated by a simple and rapid process using nanoimprinting and spin-coating, which enabled control of the CM thickness. Optical characterization of the hybrid structure was conducted by optical measurement and simulation of the reflection spectrum, indicating that the light confined in the holes of the PCS was drastically absorbed by the CM when the spectrum overlapped with the absorption spectrum of the CM. This optical property obtained by the hybridization of CM and PCS enabled drastic improvement in the absorption sensitivity in Ca ion sensing, by ca. 78 times compared to that without PCS. Experimental and simulated investigation of the relation between the CM thickness and absorption sensitivity enhancement suggested that the controlled light in the PCS enhanced the absorption cross-section of the dye molecules within the CM based on the enhanced local density of states. This highly sensitive optical ion sensor is expected to be applied for micro-scale bio-analysis like cell-dynamics based on reflectometric Ca ion detection. Nature Publishing Group UK 2020-10-07 /pmc/articles/PMC7542176/ /pubmed/33028964 http://dx.doi.org/10.1038/s41598-020-73858-8 Text en © The Author(s) 2020 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 licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence 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 licence, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Kawasaki, Daiki Oishi, Ryoutarou Kobayashi, Nao Mizuta, Tatsumi Sueyoshi, Kenji Hisamoto, Hideaki Endo, Tatsuro Highly sensitive optical ion sensor with ionic liquid-based colorimetric membrane/photonic crystal hybrid structure |
title | Highly sensitive optical ion sensor with ionic liquid-based colorimetric membrane/photonic crystal hybrid structure |
title_full | Highly sensitive optical ion sensor with ionic liquid-based colorimetric membrane/photonic crystal hybrid structure |
title_fullStr | Highly sensitive optical ion sensor with ionic liquid-based colorimetric membrane/photonic crystal hybrid structure |
title_full_unstemmed | Highly sensitive optical ion sensor with ionic liquid-based colorimetric membrane/photonic crystal hybrid structure |
title_short | Highly sensitive optical ion sensor with ionic liquid-based colorimetric membrane/photonic crystal hybrid structure |
title_sort | highly sensitive optical ion sensor with ionic liquid-based colorimetric membrane/photonic crystal hybrid structure |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7542176/ https://www.ncbi.nlm.nih.gov/pubmed/33028964 http://dx.doi.org/10.1038/s41598-020-73858-8 |
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