Invisible Security Ink Based on Water-Soluble Graphitic Carbon Nitride Quantum Dots

被引:363
作者
Song, Zhiping [1 ]
Lin, Tianran [1 ]
Lin, Lihua [1 ]
Lin, Sen [1 ]
Fu, Fengfu [1 ]
Wang, Xinchen [1 ]
Guo, Liangqia [1 ]
机构
[1] Fuzhou Univ, Key Lab Anal & Detect Food Safety, State Key Lab Photocatalysis Energy & Environm, Minist Educ,Coll Chem, Fuzhou 350116, Peoples R China
关键词
carbon nitride; data security; fluorescence; fluorescent ink; semiconductors; FLUORESCENT INK; DATA-STORAGE; NITROGEN; LUMINESCENCE; COMPLEX; PAPER;
D O I
10.1002/anie.201510945
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Stimuli-responsive photoluminescent (PL) materials have been widely used as fluorescent ink for data security applications. However, traditional fluorescent inks are limited in maintaining the secrecy of information because the inks are usually visible by naked eyes either under ambient light or UV-light illumination. Here, we introduced metal-free watersoluble graphitic carbon nitride quantum dots (g-CNQDs) as invisible security ink for information coding, encryption, and decryption. The information written by the g-CNQDs is invisible in ambient light and UV light, but it can be readable by a fluorescence microplate reader. Moreover, the information can be encrypted and decrypted by using oxalic acid and sodium bicarbonate as encryption reagent and decryption reagent, respectively. Our findings provide new opportunities for high-level information coding and protection by using water-soluble g-CNQDs as invisible security ink.
引用
收藏
页码:2773 / 2777
页数:5
相关论文
共 38 条
[1]  
[Anonymous], 2015, Angew. Chem., DOI [DOI 10.1002/ANGE.201501788, 10.1002/ange.201501788]
[2]   Facile bulk production of highly blue fluorescent graphitic carbon nitride quantum dots and their application as highly selective and sensitive sensors for the detection of mercuric and iodide ions in aqueous media [J].
Barman, Sudip ;
Sadhukhan, Mriganka .
JOURNAL OF MATERIALS CHEMISTRY, 2012, 22 (41) :21832-21837
[3]   Conjugated Polymer Dots for Ultra-Stable Full-Color Fluorescence Patterning [J].
Chang, Kaiwen ;
Liu, Zhihe ;
Chen, Haobin ;
Sheng, Lan ;
Zhang, Sean Xiao-An ;
Chiu, Daniel T. ;
Yin, Shengyan ;
Wu, Changfeng ;
Qin, Weiping .
SMALL, 2014, 10 (21) :4270-4275
[4]  
Chen X., 2014, ANGEW CHEM, V126, P12750, DOI [10.1002/ange.201408422, DOI 10.1002/ANGE.201408422]
[5]   Synthesis and Unique Photoluminescence Properties of Nitrogen-Rich Quantum Dots and Their Applications [J].
Chen, Xiuxian ;
Jin, Qingqing ;
Wu, Lizhu ;
Tung, ChenHo ;
Tang, Xinjing .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2014, 53 (46) :12542-12547
[6]   Carbon-Based Dots Co-doped with Nitrogen and Sulfur for High Quantum Yield and Excitation-Independent Emission [J].
Dong, Yongqiang ;
Pang, Hongchang ;
Yang, Hong Bin ;
Guo, Chunxian ;
Shao, Jingwei ;
Chi, Yuwu ;
Li, Chang Ming ;
Yu, Ting .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2013, 52 (30) :7800-7804
[7]   A green one-arrow-two-hawks strategy for nitrogen-doped carbon dots as fluorescent ink and oxygen reduction electrocatalysts [J].
Gao, Shuyan ;
Chen, Yanli ;
Fan, Hao ;
Wei, Xianjun ;
Hu, Chuangang ;
Wang, Lixia ;
Qu, Liangti .
JOURNAL OF MATERIALS CHEMISTRY A, 2014, 2 (18) :6320-6325
[8]   Tunable solid-state fluorescent materials for supramolecular encryption [J].
Hou, Xisen ;
Ke, Chenfeng ;
Bruns, Carson J. ;
McGonigal, Paul R. ;
Pettman, Roger B. ;
Stoddart, J. Fraser .
NATURE COMMUNICATIONS, 2015, 6
[9]   Graphitic carbon nitride solid nanofilms for selective and recyclable sensing of Cu2+ and Ag+ in water and serum [J].
Huang, Heqin ;
Chen, Rui ;
Ma, Jiale ;
Yan, Li ;
Zhao, Yingqi ;
Wang, Yu ;
Zhang, Wenjun ;
Fan, Jun ;
Chen, Xianfeng .
CHEMICAL COMMUNICATIONS, 2014, 50 (97) :15415-15418
[10]   Rewritable phosphorescent paper by the control of competing kinetic and thermodynamic self-assembling events [J].
Kishimura, A ;
Yamashita, T ;
Yamaguchi, K ;
Aida, T .
NATURE MATERIALS, 2005, 4 (07) :546-549