Portable and writable photoluminescent chalk for on-site information protection on arbitrary substrates

doi:10.1016/j.cej.2019.03.153

SIC OpenIR

	Portable and writable photoluminescent chalk for on-site information protection on arbitrary substrates
	Chen, Fei-Fei; Zhu, Ying-Jie; Zhang, Yong-Gang; Yang, Ri-Long; Yu, Han-Ping; Qin, Dong-Dong; Xiong, Zhi-Chao
	2019-08-01
Source Publication	CHEMICAL ENGINEERING JOURNAL
ISSN	1385-8947
Volume	369 Pages:766
Subtype	Article
Abstract	Information protection is particularly important for secure communication between parties, avoiding the leakage of secret information to unknown parties. Among various strategies used for information protection in the previous reports in the literature, security inks made from photoluminescent materials are the most widely investigated. The security inks suffer from the drawbacks such as lack of universality on various substrates. In this work, we provide a promising new complement to the security ink-based protection techniques. We report a kind of portable photoluminescent chalk made from lanthanide-doped ultralong hydroxyapatite nanowires, which can directly write the covert information at anytime and anyplace on arbitrary surfaces and substrates including paper sheets, metals, fabrics, plastics, woods, walls, foams, leaves, and even human body. The as-written original information cannot be recognized under the ambient light, but it is readable upon exposure to the ultraviolet light. In this work, the dual and triple encryption strategies are also provided for the high-level information protection. It is expected that the versatile, convenient, and user-friendly strategy demonstrated herein is promising for the on-site secret information protection.
Keyword	Hydroxyapatite Nanowire Luminescence Chalk Data encryption
DOI	10.1016/j.cej.2019.03.153
Language	英语
WOS Research Area	Engineering
Publisher	ELSEVIER SCIENCE SA
Citation statistics
Document Type	期刊论文
Identifier	http://ir.sic.ac.cn/handle/331005/26957
Collection	中国科学院上海硅酸盐研究所
Recommended Citation GB/T 7714	Chen, Fei-Fei,Zhu, Ying-Jie,Zhang, Yong-Gang,et al. Portable and writable photoluminescent chalk for on-site information protection on arbitrary substrates[J]. CHEMICAL ENGINEERING JOURNAL,2019,369:766.
APA	Chen, Fei-Fei.,Zhu, Ying-Jie.,Zhang, Yong-Gang.,Yang, Ri-Long.,Yu, Han-Ping.,...&Xiong, Zhi-Chao.(2019).Portable and writable photoluminescent chalk for on-site information protection on arbitrary substrates.CHEMICAL ENGINEERING JOURNAL,369,766.
MLA	Chen, Fei-Fei,et al."Portable and writable photoluminescent chalk for on-site information protection on arbitrary substrates".CHEMICAL ENGINEERING JOURNAL 369(2019):766.

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