In Situ Femtosecond-Laser-Induced Fluorophores on Surface of Polyvinyl Alcohol for H<sub>2</sub>O/Co<sup>2+</sup> 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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MDPI AG
2021
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oai:doaj.org-article:7213e6fb0eb64f0b948d22c80053b30d2021-11-25T18:59:02ZIn Situ Femtosecond-Laser-Induced Fluorophores on Surface of Polyvinyl Alcohol for H<sub>2</sub>O/Co<sup>2+</sup> Sensing and Data Security10.3390/s212277551424-8220https://doaj.org/article/7213e6fb0eb64f0b948d22c80053b30d2021-11-01T00:00:00Zhttps://www.mdpi.com/1424-8220/21/22/7755https://doaj.org/toc/1424-8220In 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.Weiliang ChenJichao GaoJie TianJingyu ZhangMDPI AGarticledata securityfluorescencelaser ablationmaterials processingmicrofluidicsChemical technologyTP1-1185ENSensors, Vol 21, Iss 7755, p 7755 (2021) |
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DOAJ |
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data security fluorescence laser ablation materials processing microfluidics Chemical technology TP1-1185 |
| spellingShingle |
data security fluorescence laser ablation materials processing microfluidics Chemical technology TP1-1185 Weiliang Chen Jichao Gao Jie Tian Jingyu Zhang In Situ Femtosecond-Laser-Induced Fluorophores on Surface of Polyvinyl Alcohol for H<sub>2</sub>O/Co<sup>2+</sup> Sensing and Data Security |
| 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 |
article |
| author |
Weiliang Chen Jichao Gao Jie Tian Jingyu Zhang |
| author_facet |
Weiliang Chen Jichao Gao Jie Tian Jingyu Zhang |
| author_sort |
Weiliang Chen |
| title |
In Situ Femtosecond-Laser-Induced Fluorophores on Surface of Polyvinyl Alcohol for H<sub>2</sub>O/Co<sup>2+</sup> Sensing and Data Security |
| title_short |
In Situ Femtosecond-Laser-Induced Fluorophores on Surface of Polyvinyl Alcohol for H<sub>2</sub>O/Co<sup>2+</sup> Sensing and Data Security |
| title_full |
In Situ Femtosecond-Laser-Induced Fluorophores on Surface of Polyvinyl Alcohol for H<sub>2</sub>O/Co<sup>2+</sup> Sensing and Data Security |
| title_fullStr |
In Situ Femtosecond-Laser-Induced Fluorophores on Surface of Polyvinyl Alcohol for H<sub>2</sub>O/Co<sup>2+</sup> Sensing and Data Security |
| title_full_unstemmed |
In Situ Femtosecond-Laser-Induced Fluorophores on Surface of Polyvinyl Alcohol for H<sub>2</sub>O/Co<sup>2+</sup> Sensing and Data Security |
| title_sort |
in situ femtosecond-laser-induced fluorophores on surface of polyvinyl alcohol for h<sub>2</sub>o/co<sup>2+</sup> sensing and data security |
| publisher |
MDPI AG |
| publishDate |
2021 |
| url |
https://doaj.org/article/7213e6fb0eb64f0b948d22c80053b30d |
| work_keys_str_mv |
AT weiliangchen insitufemtosecondlaserinducedfluorophoresonsurfaceofpolyvinylalcoholforhsub2subocosup2supsensinganddatasecurity AT jichaogao insitufemtosecondlaserinducedfluorophoresonsurfaceofpolyvinylalcoholforhsub2subocosup2supsensinganddatasecurity AT jietian insitufemtosecondlaserinducedfluorophoresonsurfaceofpolyvinylalcoholforhsub2subocosup2supsensinganddatasecurity AT jingyuzhang insitufemtosecondlaserinducedfluorophoresonsurfaceofpolyvinylalcoholforhsub2subocosup2supsensinganddatasecurity |
| _version_ |
1718410468246159360 |