Details

Autor(en) / Beteiligte

• Yao, Hong
• Wang, Jiao
• Song, Shan-Shan
• Fan, Yan-Qing
• Guan, Xiao-Wen
• Zhou, Qi
• Wei, Tai-Bao
• Lin, Qi
• Zhang, You-Ming

Titel

A novel supramolecular AIE gel acts as a multi-analyte sensor array

Ist Teil von

• New journal of chemistry, 2018, Vol.42 (22), p.18059-18065

Ort / Verlag

Cambridge: Royal Society of Chemistry

Erscheinungsjahr

2018

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• A novel organic gelator ( WJ ) based on benzimidazole and acylhydrazone naphthol moities has been designed and synthesized. The organic gelator ( WJ ) could form a stable organogel ( WJG ) with strong aggregation-induced emission (AIE). Interestingly, the WJG shows multi-stimuli-response for many analytes such as CN − , Al 3+ and Fe 3+ and l -Cys. Therefore, a multi-analyte sensor array based on WJG has been successfully developed. The WJG presents selective fluorescent and colorimetric response for CN − . Meanwhile, the WJG could selectively identify Fe 3+ and Al 3+ in the gel state. With the addition of Fe 3+ the yellow-green AIE of WJG was quenched. In addition, the AIE of WJG could be selectively recovered by adding l -Cys. So the AIE presents an “on–off–on” type by alternatively adding Fe 3+ and l -Cys. Moreover, upon the addition of Al 3+ , the yellow-green AIE of WJG shows a blue shift and changes to blue. The detection limits of the sensor array for CN − , Al 3+ and Fe 3+ are 3.02 × 10 −6 M, 5.78 × 10 −8 M, and 3.81 × 10 −9 M, respectively. The WJG could act as a multi-analyte detection and fluorescent display material.