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Dye Plants Derived Carbon Dots for Flexible Secure Printing

Carbon dots (C-dots) are fluorescent nanomaterials, exhibiting excellent structure-dependent optical properties for various types of optical and electrical applications. Although many precursors were used for C-dots production, it is still a challenge to produce high-quality C-dots using environment...

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Autores principales: Li, Linlin, Han, Yuanyuan, Wang, Lihua, Jiang, Wei, Zhao, Haiguang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9506027/
https://www.ncbi.nlm.nih.gov/pubmed/36144956
http://dx.doi.org/10.3390/nano12183168
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author Li, Linlin
Han, Yuanyuan
Wang, Lihua
Jiang, Wei
Zhao, Haiguang
author_facet Li, Linlin
Han, Yuanyuan
Wang, Lihua
Jiang, Wei
Zhao, Haiguang
author_sort Li, Linlin
collection PubMed
description Carbon dots (C-dots) are fluorescent nanomaterials, exhibiting excellent structure-dependent optical properties for various types of optical and electrical applications. Although many precursors were used for C-dots production, it is still a challenge to produce high-quality C-dots using environmentally-friendly natural precursors. In this work, multiple-colored colloidal C-dots were synthesized via a heating reaction using natural plant dyes as precursors, for example, Indigo, Carcuma longa, and Sophora japonica L. The as-prepared C-dots have absorption in the UV range of 220 to 450 nm with the typical emission ranging from 350 to 600 nm. The as-obtained C-dots have a quantum yield as high as 3.8% in an aqueous solution. As a proof-of-concept, we used the as-prepared C-dots as fluorescence inks for textile secure printing. The printed patterns are almost invisible under daylight and have distinct and clear patterns under 365 and 395 nm light, proving the great potential in optical anti-counterfeiting. This work demonstrates the advanced strategy for high-performance C-dots production from natural dyes and their potential application in flexible secure printing systems.
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spelling pubmed-95060272022-09-24 Dye Plants Derived Carbon Dots for Flexible Secure Printing Li, Linlin Han, Yuanyuan Wang, Lihua Jiang, Wei Zhao, Haiguang Nanomaterials (Basel) Article Carbon dots (C-dots) are fluorescent nanomaterials, exhibiting excellent structure-dependent optical properties for various types of optical and electrical applications. Although many precursors were used for C-dots production, it is still a challenge to produce high-quality C-dots using environmentally-friendly natural precursors. In this work, multiple-colored colloidal C-dots were synthesized via a heating reaction using natural plant dyes as precursors, for example, Indigo, Carcuma longa, and Sophora japonica L. The as-prepared C-dots have absorption in the UV range of 220 to 450 nm with the typical emission ranging from 350 to 600 nm. The as-obtained C-dots have a quantum yield as high as 3.8% in an aqueous solution. As a proof-of-concept, we used the as-prepared C-dots as fluorescence inks for textile secure printing. The printed patterns are almost invisible under daylight and have distinct and clear patterns under 365 and 395 nm light, proving the great potential in optical anti-counterfeiting. This work demonstrates the advanced strategy for high-performance C-dots production from natural dyes and their potential application in flexible secure printing systems. MDPI 2022-09-13 /pmc/articles/PMC9506027/ /pubmed/36144956 http://dx.doi.org/10.3390/nano12183168 Text en © 2022 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 Article
Li, Linlin
Han, Yuanyuan
Wang, Lihua
Jiang, Wei
Zhao, Haiguang
Dye Plants Derived Carbon Dots for Flexible Secure Printing
title Dye Plants Derived Carbon Dots for Flexible Secure Printing
title_full Dye Plants Derived Carbon Dots for Flexible Secure Printing
title_fullStr Dye Plants Derived Carbon Dots for Flexible Secure Printing
title_full_unstemmed Dye Plants Derived Carbon Dots for Flexible Secure Printing
title_short Dye Plants Derived Carbon Dots for Flexible Secure Printing
title_sort dye plants derived carbon dots for flexible secure printing
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9506027/
https://www.ncbi.nlm.nih.gov/pubmed/36144956
http://dx.doi.org/10.3390/nano12183168
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