A bifunctional sensor based on diarylethene for the colorimetric recognition of Cu²⁺ and fluorescence detection of Cd²⁺

Abstract

A bifunctional sensor for colorimetric recognition of Cu2+ and fluorescent detection of Cd2+ was synthesized. It not only showed high selectivity and sensitivity to Cu2+ and Cd2+, but also could be used in practical water samples with high accuracy.

A visible-light-gated donor–acceptor Stenhouse adduct chemosensor: synthesis, photochromism and naked-eye colorimetric/fluorometric sensing of Al3+ and Zn2+

“…21 Recently, various photochromic compounds have been constructed as chemosensors for metal ions, and their main strategy is to combine responsive functional groups with photochromic molecules. [22][23][24][25][26][27][28][29] Unlike general metal-ion dual chemosensors, the fusion of a photochromic unit and responsive groups would endow the chemosensor with a gating property. Donor-acceptor Stenhouse adducts (DASAs) are a novel kind of organic negative photoresponsive switch discovered by R. D. Alaniz.…”

A rhodamine B‐based colorimetric chemosensor for sensitive and selective detection of Cu2+: Test strip analysis and density functional theory

“…The development of effective and selective chemical sensors to detect various heavy and transition metal ions is of huge significance because of their central roles in the environment, medicine and organisms. [1][2][3][4][5][6][7] Among the heavy metals, copper is broadly utilised in contemporary industrial fields because of its various efficient properties, such as erosion resistance, thermal conductivity and electrical conductivity. [8][9][10][11] Consequently, excess copper ions accumulate in our surrounding environment, with critical effects on humans.…”