Writing and erasing multicolored information in diarylethene-based supramolecular gels
Artikel i vetenskaplig tidskrift, 2018

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 forfluorescence 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.

Författare

Henrik Sundén

Chalmers, Kemi och kemiteknik, Kemi och biokemi

Joakim Andreasson

Chalmers, Kemi och kemiteknik, Kemi och biokemi

Chien-Wei Hsu

Organisation okänd

Claire Sauvée

Organisation okänd

Chemical Science

2041-6520 (ISSN) 2041-6539 (eISSN)

Styrkeområden

Nanovetenskap och nanoteknik

Ämneskategorier

Kemiteknik

Nanoteknik

Kemi

Organisk kemi

DOI

10.1039/c8sc03127d

Mer information

Skapat

2018-09-08