A highly sensitive fluorescent sensor for Al³⁺and Zn²⁺based on a diarylethene salicylhydrazide Schiff base derivative and its bioimaging in live cells

Abstract

A new photochromic diarylethene based sensor with a salicylhydrazide Schiff base displayed a dual-mode with a “turn on” fluorescence response and color changes upon addition of Al3+or Zn2+.

A highly selective and sensitive fluorescent chemosensor for Zn2+based on a diarylethene derivative

“…By combining with Zn 2+ , the C]N isomerization was suppressed, and the increased rigidity of the molecule leaded to chelation enhanced uorescence (CHEF), thereby realizing the uorescence enhancement of complex 1o-Zn 2+ . [44][45][46][47] Noteworthily, because of the inhibition of C]N isomerization, the chelate 1o-Zn 2+ showed prominent uorescence switch performance by UV-Vis light irradiation (Fig. 3b) as compared with the probe 1o (Fig.…”

Recent developments in penta-, hexa- and heptadentate Schiff base ligands and their metal complexes

“…Schiff bases are among the most widely used organic compounds, exhibiting a broad range of applications, such as intermediates in organic synthesis [4][5][6][7], chemosensors [8][9][10] and polymer stabilisers [11][12][13], in food industry [14,15], as dye [16][17][18] and pigments [19][20][21], catalysis [22,23] and others [24][25][26]. Schiff bases also present a broad range of biological activities [27][28][29][30] for which the azomethine or imine group present in their structures, seems to play a critical role [31][32][33].…”

Photochromism and molecular logic gate operation of a water-compatible bis-glycosyl diarylethene

“…12 In recent years, the design and synthesis of diarylethene derivatives incorporating fluorophores have been a decent strategy in the rational design of molecular logic gates based on Förster resonance energy transfer (FRET) or photoinduced electron transfer (PET). 13,14 Logic-gate systems are employed in the binary notation, 0 and 1, and the principles of Boolean language [15][16][17] Despite the progress made in the synthesis and application of diarylethene derivatives for molecular logic gates, the majority of the systems developed require the presence of a large portion of organic solvents, which are not suitable for biological applications. As a result, the development of water-compatible photoswitchable logic gates is still a challenging task.…”