Novel halochromic cellulose nanowhiskers from rice straw: Visual detection of urea

A novel dihydro phenylquinazolinone-based two-in-one colourimetric chemosensor for nickel(ii), copper(ii) and its copper complex for the fluorescent colourimetric nanomolar detection of the cyanide anion

“…[3][4][5] Optical methods based on colourimetric receptors are especially attractive due to their real-time analysis, simplicity, and low cost in comparison to other closely related processes such as uorescence, where UV radiation and sophisticated instruments are required, although the latter is more sensitive than the former. [6][7][8][9][10][11] A small amount of Cu 2+ is required for maintaining good health, but if its concentration is increased, it has a toxic effect on the living body. Cu is the 3rd most important trace element, aer Fe and Zn in various biological metabolic processes.…”

Photochromic and fluorescent ink using photoluminescent strontium aluminate pigment and screen printing towards anticounterfeiting documents

“…Smart chromic materials have the capability to be responsive to one or more external stimuli, such as heat, pH, light, solvent polarity, and electricity. [46][47][48][49][50][51][52][53][54][55][56][57][58][59][60] In this study, we developed a simple method to produce smart coating with the ability to respond to light. The long-lasting phosphorescence formula was prepared using several components including resins, lanthanide-doped strontium aluminate phosphor at different total contents (0.01, 0.05, 0.1, 0.25 and 0.5 wt%), alkali, mineral oil, and a dryer.…”

Hydrazone‐Based Supramolecular Organogel for Selective Chromogenic Detection of Organophosphorus Nerve Agent Mimic

“…There has been no report on the application of tricyanofuran hydrazone‐based gelators for chromogenic detection of nerve agents. Tricyanofuran dyes have played an important role in a variety of recent applications, such as single molecular fluorophores, logic memories, laser, optoelectronic applications, photorefractive devices, sensors and organic light emitting devices [40–46] . This is attributed to their outstanding optical properties, such strong extinction coefficients, high quantum yield, and good photo‐ and thermal stability.…”

“…Tricyanofuran dyes have played an important role in a variety of recent applications, such as single molecular fluorophores, logic memories, laser, optoelectronic applications, photorefractive devices, sensors and organic light emitting devices. [40][41][42][43][44][45][46] This is attributed to their outstanding optical properties, such strong extinction coefficients, high quantum yield, and good photo-and thermal stability. Thus, the production of an organic gel based on tricyanofuran hydrazone dyes will be of high significance to extend the organogel-based materials with attractive electronic and photonic functionalities.…”