Geminate labels programmed by two-tone microdroplets combining structural and fluorescent color.

Geminate labels programmed by two-tone microdroplets combining structural and fluorescent color.
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由结合结构颜色和荧光颜色的双色调微滴编程的双生标签

DOI:
10.1038/s41467-021-20908-y
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发表时间:
2021-01-29
影响因子:
16.6
通讯作者:
Yu Y
Yu Y
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Qin L;Liu X;He K;Yu G;Yuan H;Xu M;Li F;Yu Y

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创建一个在反射和荧光状态下携带完全不同信息的安全标签将提高防伪水平,以阻止从货币到药品的伪造品,但事实证明极具挑战性。通过改变固有化学结构来调节发光材料的反射颜色的努力仍然被荧光性质的实质性权衡所超过,反之亦然,这破坏了反射或荧光颜色中的标记的信息完整性。在这里,报告了一种策略,通过编程荧光双相液晶微滴(双色油墨),其中发光材料被“涂覆”有来自螺旋超结构的结构色来设计成对标签。这些由毛细管微流体技术制造的结构限定的微滴有助于在成对标签中的反射和荧光图案的不同但完整的消息。这种双色油墨具有巨大的潜力,可以为防伪技术中有价值的真实信息的加密和保护提供平台。
Creating a security label that carries entirely distinct information in reflective and fluorescent states would enhance anti-counterfeiting levels to deter counterfeits ranging from currencies to pharmaceuticals, but has proven extremely challenging. Efforts to tune the reflection color of luminescent materials by modifying inherent chemical structures remain outweighed by substantial trade-offs in fluorescence properties, and vice versa, which destroys the information integrity of labels in either reflection or fluorescent color. Here, a strategy is reported to design geminate labels by programming fluorescent cholesteric liquid crystal microdroplets (two-tone inks), where the luminescent material is ‘coated’ with the structural color from helical superstructures. These structurally defined microdroplets fabricated by a capillary microfluidic technique contribute to different but intact messages of both reflective and fluorescent patterns in the geminate labels. Such two-tone inks have enormous potential to provide a platform for encryption and protection of valuable authentic information in anti-counterfeiting technology.
由光驱动手性荧光分子开关实现的光学可重写透明液晶显示器
DOI: 10.1002/adma.201807751
发表时间: 2019-03-08
期刊: ADVANCED MATERIALS
影响因子: 29.4
作者:
Li, Juntao;Bisoyi, Hari Krishna;Li, Quan
通讯作者: Li, Quan
DOI: 10.1002/adma.200701772
发表时间: 2008-01-07
期刊: ADVANCED MATERIALS
影响因子: 29.4
作者:
Kunzelman, Jill;Kinami, Maki;Weder, Christoph
通讯作者: Weder, Christoph
DOI: 10.1038/s41467-018-06392-x
发表时间: 2018-09-28
影响因子: 16.6
作者:
Gao Z;Han Y;Wang F
通讯作者: Wang F
DOI: 10.1002/adma.201903120
发表时间: 2019-08-01
期刊: ADVANCED MATERIALS
影响因子: 29.4
作者:
Kragt, Augustinusj J.;Hoekstra, Davey C.;Schenning, Albertus P. H. J.
通讯作者: Schenning, Albertus P. H. J.
DOI: 10.1038/378467a0
发表时间: 1995-11-30
期刊: NATURE
影响因子: 64.8
作者:
BROER, DJ;LUB, J;MOL, GN
通讯作者: MOL, GN