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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...

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Autores principales: Chen, Weiliang, Gao, Jichao, Tian, Jie, Zhang, Jingyu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
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.
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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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