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In Situ Femtosecond-Laser-Induced Fluorophores on Surface of Polyvinyl Alcohol for H(2)O/Co(2+) Sensing and Data Security
In situ fluorophores were induced on polyvinyl alcohol (PVA) bulk materials by direct femtosecond laser writing. The generation of fluorophores was ascribed to localized laser-assisted carbonization. The carbonization of PVA polymers was confirmed through X-ray photoelectron spectroscopy analysis. T...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8625953/ https://www.ncbi.nlm.nih.gov/pubmed/34833830 http://dx.doi.org/10.3390/s21227755 |
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author | Chen, Weiliang Gao, Jichao Tian, Jie Zhang, Jingyu |
author_facet | Chen, Weiliang Gao, Jichao Tian, Jie Zhang, Jingyu |
author_sort | Chen, Weiliang |
collection | PubMed |
description | In situ fluorophores were induced on polyvinyl alcohol (PVA) bulk materials by direct femtosecond laser writing. The generation of fluorophores was ascribed to localized laser-assisted carbonization. The carbonization of PVA polymers was confirmed through X-ray photoelectron spectroscopy analysis. The distinct fluorescence responses of fluorophores in various solutions were harnessed for implementing in situ reagent sensors, metal ion sensors, data encryption, and data security applications. The demonstrated water detection sensor in acetone exhibited a sensitivity of 3%. Meanwhile, a data encryption scheme and a “burn after reading” technique were demonstrated by taking advantage of the respective reversible and irreversible switching properties of the in situ laser-induced fluorophores. Taking a step further, a quantitative cobalt ion measurement was demonstrated based on the concentration-dependent fluorescence recovery. Combined with a laser-induced hydrophilic modification, our scheme could enable “lab-on-a-chip” microfluidics sensors with arbitrary shape, varied flow delay, designed reaction zones, and targeted functionalities in the future. |
format | Online Article Text |
id | pubmed-8625953 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-86259532021-11-27 In Situ Femtosecond-Laser-Induced Fluorophores on Surface of Polyvinyl Alcohol for H(2)O/Co(2+) Sensing and Data Security Chen, Weiliang Gao, Jichao Tian, Jie Zhang, Jingyu Sensors (Basel) Communication In situ fluorophores were induced on polyvinyl alcohol (PVA) bulk materials by direct femtosecond laser writing. The generation of fluorophores was ascribed to localized laser-assisted carbonization. The carbonization of PVA polymers was confirmed through X-ray photoelectron spectroscopy analysis. The distinct fluorescence responses of fluorophores in various solutions were harnessed for implementing in situ reagent sensors, metal ion sensors, data encryption, and data security applications. The demonstrated water detection sensor in acetone exhibited a sensitivity of 3%. Meanwhile, a data encryption scheme and a “burn after reading” technique were demonstrated by taking advantage of the respective reversible and irreversible switching properties of the in situ laser-induced fluorophores. Taking a step further, a quantitative cobalt ion measurement was demonstrated based on the concentration-dependent fluorescence recovery. Combined with a laser-induced hydrophilic modification, our scheme could enable “lab-on-a-chip” microfluidics sensors with arbitrary shape, varied flow delay, designed reaction zones, and targeted functionalities in the future. MDPI 2021-11-22 /pmc/articles/PMC8625953/ /pubmed/34833830 http://dx.doi.org/10.3390/s21227755 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Communication Chen, Weiliang Gao, Jichao Tian, Jie Zhang, Jingyu In Situ Femtosecond-Laser-Induced Fluorophores on Surface of Polyvinyl Alcohol for H(2)O/Co(2+) Sensing and Data Security |
title | In Situ Femtosecond-Laser-Induced Fluorophores on Surface of Polyvinyl Alcohol for H(2)O/Co(2+) Sensing and Data Security |
title_full | In Situ Femtosecond-Laser-Induced Fluorophores on Surface of Polyvinyl Alcohol for H(2)O/Co(2+) Sensing and Data Security |
title_fullStr | In Situ Femtosecond-Laser-Induced Fluorophores on Surface of Polyvinyl Alcohol for H(2)O/Co(2+) Sensing and Data Security |
title_full_unstemmed | In Situ Femtosecond-Laser-Induced Fluorophores on Surface of Polyvinyl Alcohol for H(2)O/Co(2+) Sensing and Data Security |
title_short | In Situ Femtosecond-Laser-Induced Fluorophores on Surface of Polyvinyl Alcohol for H(2)O/Co(2+) Sensing and Data Security |
title_sort | in situ femtosecond-laser-induced fluorophores on surface of polyvinyl alcohol for h(2)o/co(2+) sensing and data security |
topic | Communication |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8625953/ https://www.ncbi.nlm.nih.gov/pubmed/34833830 http://dx.doi.org/10.3390/s21227755 |
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