A new “on-off-on” fluorescent probe containing triarylimidazole chromophore to sequentially detect copper and sulfide ions

Direct and sensitive detection of sulfide ions based on one-step synthesis of ionic liquid functionalized fluorescent carbon nanoribbons

“…Thus, IL-CNRs based method is sensitive enough to detect the maximum allowable level of S 2− ions in drinking water recommended by World Health Organization. 42,43 As shown in Table S1 (ESI † ), the detection limit obtained with the present method was lower than those obtained by carbon dots (CDs)-Ag + , 44 covalent linking fluorescein isothiocyanate with branched-polyethylenimine (PEI-FITC), 43 triarylimidazole chromophore (TPI-H)-Cu 2+ , 45 Au nanoclusters, 46 lysozyme-stabilized silver nanoclusters (Lys-Ag NCs), 47 graphene quantum dot (GQDs)-Cu 2+ , 48 but higher than that obtained using Cu nanoclusters, 49,50 Au nanoclusters-Ce( iii ), 51 and silver nanoparticles capped with carbon dots (AgNPs-CDs). 52 …”

An IMPLICATION-logic-based fluorescent probe for sequential detection of Cu2+ and phosphates in living cells

“…[5][6][7] Meanwhile, it is the thirdmost-abundant essential element in the body, and too-high or too-low concentrations of Cu 2+ in the human body cause many diseases, for example, amyotrophic lateral sclerosis, Alzheimer's disease, Wilson's syndrome and Crohn's disease. [8][9][10][11] On the other hand, inorganic phosphates (H 2 PO 4 À , HPO 4 2À , PO 4 3À , PPi 4À ) are not only relevant to the environmental health of surface water, but also have a variety of biological and medical functions, including adenosine triphosphate (ATP) synthesis, protein phosphorylation and bone mineralization. 12,13 Although inorganic phosphates are ubiquitous in human activities, excess phosphate content in water also causes many problems, affecting human genetic constitution, energy transformation and skeletal development.…”

A Heterocyclic-based Bifunctional Sensor for Detecting Cobalt and Zinc Ion

“…[17][18][19][20][21][22][23][24] However, chemosensors capable of detecting both cobalt and zinc ions are very rare, [25][26][27][28] though multifunctional chemosensors have attracted much attention because of their advantages, such as higher efficiency and applicability, low cost and easy sample preparation. 29,30 In addition. although a few sensors show selective sensing abilities to cobalt and zinc ions, none of them have a nano molar-level detection limit for both ions.…”