A dual detecting polymeric sensor: chromogenic naked eye detection of silver and ratiometric fluorescent detection of manganese

Addressing of multiple-metal ions on a single platform

“…Moreover, further processing of the polymeric sensors into the films is an added advantage which may result in a new generation of multiple-channel sensors. In this context Singh et al [79] reported the first ever polymer-based dual-detecting sensor 50, which could identify Ag + and Mn 2+ ions by colorimetric and fluorescent channels, respectively. The sensor constituted a poly-olefin backbone with pendant naphthalene-containing Schiff base receptor.…”

“…Structure of polymeric probe 50 which shows dual-channel sensing behavior toward Ag + and Mn 2+ ions[79].…”

Perylene dye-functionalized silver nanoparticles serving as pH-dependent metal sensor systems

“…25 Currently, silver nanoparticles (AgNPs) provide a simple and low-cost solution for the rapid detection of heavy ions. [26][27][28][29][30] However, in most cases, only one kind of heavy metal ion is detected using the above strategy. Moreover, a series of other reagents is also necessary for the selective detection of heavy metal ions.…”

Zinc metal complex as a sensor for simultaneous detection of fluoride and HSO4−ions

“…Zinc can function as active site of hydrolytic enzymes, where it is ligated by hard donors (N or O). It has long been recognized as an important co-factor in biological molecules, either as a structural template in protein folding or as a Lewis acid catalyst that can readily adopt the coordination numbers 4, 5, or 6 [19][20][21] . The metal zinc was selected for the complexation because of its importance in biological systems.…”