Writing and erasing multicolored information in diarylethene-based supramolecular gels†,Chemical Science

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Writing and erasing multicolored information in diarylethene-based supramolecular gels†
Chemical Science ( IF 7.6 ) Pub Date : 2018-09-04 00:00:00 , DOI: 10.1039/c8sc03127d
Chien-Wei Hsu _{1,

2,

3,

4,

5} , Claire Sauvée _{1,

2,

3,

4,

5} , Henrik Sundén _{1,

2,

3,

4,

5} , Joakim Andréasson _{1,

2,

3,

4,

5}

Affiliation

A facile cocktail approach implying the mixing of diarylethene (DAE) photoswitches and low molecular weight gelators (LMWG) is presented. The photoresponsive gels exhibit multicolored emission that can be precisely controlled by different light exposure schemes (wavelength and dose), applicable for fluorescence patterning/writing. Including also a blue-emitting fluorophore allows for tri-chromatic color tuning of the emission via multistep energy transfer reactions, which in turn yields a non-linear response between the emission spectra and the light dose. This feature is highly desired in data security and anti-counterfeiting contexts. The information written in the gels can be conveniently erased by light, mass diffusion, or shaking; the latter being due to the thixotropic properties of the gels.

中文翻译：

在基于二芳基乙烯的超分子凝胶中书写和擦除多色信息†

提出了一种暗示二芳基乙烯（DAE）光开关和低分子量胶凝剂（LMWG）混合的简便鸡尾酒方法。光敏凝胶显示出多色发射，可以通过不同的曝光方案（波长和剂量）精确控制其颜色，适用于荧光图案/书写。还包括发射蓝色的荧光团，可以对发射孔进行三色颜色调整多步能量转移反应，继而在发射光谱和光剂量之间产生非线性响应。在数据安全性和防伪上下文中，非常需要此功能。凝胶中写的信息可通过光，质量扩散或摇晃方便地擦除。后者归因于凝胶的触变性。

更新日期：2018-09-04

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