The synthesis of a chemically reactive and polymeric luminescent gel

Abstract

An unprecedented chemically reactive and polymeric luminescent gel is developed, and this material is further employed to develop a portable and rapid sensor for a practically relevant analyte (nitrite ions) with a sensitivity of 3 μM.

Monosystem Discriminative Sensor toward Inorganic Anions via Incorporating Three Different Luminescent Channels in Metal–Organic Frameworks

“…The World Health Organization stipulates a maximum permissible concentration of 50 μg/L of the Cr (VI) content (in drinking water), 0.0143 mM phosphate (in wastewater), 13.6 μM (0.7 mg L –1 ) ClO – (in drinking water), and 65 μM NO 2 – (in drinking water) . Compared with that, RGB@TLU-2 could monitor the Cr 2 O 7 2– and ClO – in drinking water and PO 4 3– in wastewater.…”

“…Inorganic anions play an essential role in our life, such as chemical fertilizers and industrial productions. , However, many inorganic anions are toxic to the human body. For example, consumption of high concentrations of nitrites will cause esophageal and stomach cancer, tissue hypoxia, and severe medical disorders . Excess intake of Cr 2 O 7 2– will lead to DNA damage and disruption of the protein and enzyme system of the human body .…”

Design of a self-cleanable multilevel anticounterfeiting interface through covalent chemical modulation

“…We prepared a highly porous and chemically functionalizable coating through a 1,4-conjugate addition reaction 41,44 between branched polyethyleneimine (BPEI; molecular weight B25 000 Da) and dipentaerythritol penta-acrylate (5-Acl) in heptanol. The BPEI and 5-Acl mixture in heptanol was sprayed on a substrate to obtain a chemically functionalizable and highly porous polymeric coating.…”

A biocompatible hydrogel as a template for oxidative decomposition reactions: a chemodosimetric analysis and in vitro imaging of hypochlorite

“…Though recently a few hydrogel systems capable of optical sensing have appeared in the literature, 23,49 reports on ‘reaction-based’ biosensing using hydrogels however remains relatively fewer. 49–56 However, detection strategies based on mild reactions are considered to be more effective than host–guest interactions due to their high specificity. Moreover, unlike conventional reaction-based probes (which work on a one-to-one detection strategy), gel-based sensors can amplify the response signal due to long-range intermolecular interactions.…”