A highly selective dual-channel Cu2+ and Al3+ chemodosimeter in aqueous systems: Sensing in living cells and microfluidic flows

Rhodamine‐based Colorimetric and Fluorescent Chemosensors for the Detection of Cu2+ Ions and its Application to Bioimaging

“…Fluorescence chemosensors provide many advantages including operational ease, high selectivity, low cost, and real-time monitoring. [42][43][44][45][46] Rhodamine derivatives exist in equilibrium between two different forms. [10][11][12][13][14][15][16][17] When these chemosensors encounter a metal ion in solution (organic or aqueous solution), a change in their optical characteristic is observed, such as a change in wavelength, a change in emission intensity, or the appearance of a novel fluorescence band.…”

Dual sensing performance of a rhodamine-derived scaffold for the determination of Cu2+ and Ce4+ in aqueous media

“…In these systems, the signals were transduced by either opening the spirolactam ring upon metal ion coordination or irreversible chemical reactions induced by metal ions. Several dual ion chemosensors were reported recently, including combinations of Hg 2+ /Au 3+ [46], Al 3+ /H + [47], Cu 2+ /Zn 2+ [48], and Cu 2+ /Al 3+ [49]. However, the development of a highly selective and sensitive dual ion chemosensor with turn-on fluorescence for monitoring Cu 2+ /Ce 4+ remains a significant challenge.…”

“Turn-on” fluorescent and colorimetric determination of Cu2+ ions in aqueous media based on a Rhodamine-N-phenyl Semicarbazide derivative

“…During recent years, our research group has focused on the design of new fluorimetric and colorimetric chemosensors for the recognition of various metal ions [40][41][42][43][44][45][46][47] and anions [48][49][50][51]. In this work, we report the design and synthesis of a novel rhodamine-based chemosensor (RGPS) through the reaction of rhodamine 6G hydrazide derivative and Nphenyl semicarbazide for the detection of metal ions in acetonitrile-aqueous (v/v, 9:1) media.…”