| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 176426 | Dyes and Pigments | 2013 | 6 Pages |
A new photochromic diarylethene with a formyl group, 1-(2-cyano-1,5-dimethyl-4-pyrryl)-2-(2-methyl-5-formyl-3-thienyl)perfluorocyclopentene,has been synthesized. The interaction between the formyl group of its ring-closed isomer with cysteine/homocysteine caused a notable change in its absorption spectrum, accompanied by an evident color change from blue to pale yellow upon addition of cysteine/homocysteine. Moreover, the competition tests revealed that no obvious interference was observed by performing the titrations with the mixtures of cysteine/homocysteine and other amino acids. The results indicated that the diarylethene could be used as a colorimetric sensor for the recognition of cysteine/homocysteine with high selectivity.
Graphical abstractA new photochromic diarylethene with a formyl group was successfully synthesized. The diarylethene could be used as a colorimetric sensor for the detection of cysteine and homocysteine with high selectivity.Figure optionsDownload full-size imageDownload as PowerPoint slideHighlights► A new diarylethene with a formyl group was synthesized. ► A notable change in its absorption spectrum was observed by cysteine or homocysteine stimuli. ► The diarylethene could be used as a colorimetric chemosensor for cysteine and homocysteine.
