Rapid detection of hydrogen sulfide in vegetables and monosodium glutamate based on perylene supramolecular aggregates using an indicator displacement assays strategy

A Dual Fluorometric and Colorimetric Sulfide Sensor Based on Coordinating Self-Assembled Nanorods: Applicable for Monitoring Meat Spoilage

“…It is well known that copper has stronger affinity to sulfides compared to carboxylates [46,47], consistent with the dramatically different solubility product constants of CuS (7.9 × 10 −37 ) and CuCO3 (1.4 × 10 −10 ) [34,48]. Based on this metal ion displacement approach (MDA), various colorimetric and fluorometric probes have been reported [2,30,[49][50][51][52][53][54][55]. However, the use of perylene diimide (PDI) based metal coordinated self-assembled materials as a sulfide sensor is rare.…”

“…However, the use of perylene diimide (PDI) based metal coordinated self-assembled materials as a sulfide sensor is rare. Recently, Yao et al reported H 2 S sensing using a similar mechanism with a 0.41 µM detection limit [53]. However, the use of highly toxic cadmium metal could restrict the sensor application in real world applications.…”

Synthesis of a quinoxaline–hydrazinobenzothiazole based probe—single point detection of Cu2+, Co2+, Ni2+ and Hg2+ ions in real water samples

“…20 The detection of biologically important heavy metals and molecules is a recent thriving area of research. [21][22][23][24] There are many traditional methods used for the detection of heavy metal ions, and they can be mainly divided into three categories, spectroscopic, chromatographic, and electrochemical (EC) analysis. 25,26 Spectroscopic assays include atomic absorption spectroscopy (AAS), 27 atomic emission spectroscopy, 28 atomic fluorescence spectroscopy (AFS), 29 inductively coupled plasma-mass spectroscopy (ICPS-MS), 30 colorimetry, 31,32 and fluorescence spectroscopy.…”