Lanthanide-polyoxometalate-based self-erasing luminescent hydrogels with time-dependent and resilient properties for advanced information encryption.

IF 12.2 2区 材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY
Yumei Hua, Jingfang Li, Min Gao, Liye Liang, Sicong Zhao, Guangming Li
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引用次数: 0

Abstract

In such an era of information explosion, improving the level of information security is still a challenging task. Self-erasing luminescent hydrogels are becoming ideal candidates for improving the level of information security with simple encryption and decryption methods. Herein, a lanthanide-polyoxometalate-based self-erasing luminescent hydrogel with time-dependent and resilient properties was constructed through a covalent crosslinked network constructed with polyacrylamide and a non-covalent crosslinked network constructed with [2-(methacryloyloxy)ethyl]trimethyl ammonium chloride/Na9DyW10O36, along with doping urease. This acquired hydrogel exhibited reversible luminescence switching properties in the presence of HCl-urea mixed solution. At the same time, obvious changes in the luminescence intensity can be seen on the timescale by modulating the concentrations of HCl and urea/urease. Based on this, the information loaded onto the hydrogel by using a HCl-urea mixed solution self-erased over time, leading to misinformation during this process. The real information can only be recognized at a specific time. Moreover, the information is self-erased permanently, which can avoid secondary leakage of information. In addition, the hydrogel has excellent resilience. The information can be loaded in the stretched state of the hydrogel, resulting in the information only being recognized in the re-stretched state of the hydrogel while the information cannot be recognized in the normal state of the hydrogel. The combination of time-dependent and resilient properties of the hydrogel can further improve the level of information security effectively. This self-erasing luminescent hydrogel with time-dependent and resilient properties has great potential in improving the security of information encryption.

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来源期刊
Materials Horizons
Materials Horizons CHEMISTRY, MULTIDISCIPLINARY-MATERIALS SCIENCE, MULTIDISCIPLINARY
CiteScore
18.90
自引率
2.30%
发文量
306
审稿时长
1.3 months
期刊介绍: Materials Horizons is a leading journal in materials science that focuses on publishing exceptionally high-quality and innovative research. The journal prioritizes original research that introduces new concepts or ways of thinking, rather than solely reporting technological advancements. However, groundbreaking articles featuring record-breaking material performance may also be published. To be considered for publication, the work must be of significant interest to our community-spanning readership. Starting from 2021, all articles published in Materials Horizons will be indexed in MEDLINE©. The journal publishes various types of articles, including Communications, Reviews, Opinion pieces, Focus articles, and Comments. It serves as a core journal for researchers from academia, government, and industry across all areas of materials research. Materials Horizons is a Transformative Journal and compliant with Plan S. It has an impact factor of 13.3 and is indexed in MEDLINE.
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