Turn-off fluorescence probe for the selective determination of pendimethalin using a mechanistic docking model of novel oxacalix[4]arene

Abstract

A novel bidansylated oxacalix[4]arene (BDO) fluoroionophore for the selective determination of pendimethalin (PM) was carried out in the linear range of detection between 0.4 μM and 20 μM.

Effect of O-substitution in imidazole based Zn(ii) dual fluorescent probes in the light of arsenate detection in potable water: a combined experimental and theoretical approach

“…In this regard, the fluorimetric detection technique has achieved unprecedented success not only due to its low detection limit but also because it is less expensive, easy to operate and non-destructive. [22][23][24][25] In fact, fluorescent sensors have wide applications for the detection of bio-relevant analytes such as Zn 2+ , Cu 2+ , Fe 3+ , etc. A very few research articles have witnessed an upsurge in the real-time detection of arsenate based on aggregation-induced photoluminescence, 26,27 dye degradation, 28 electrochemical assay, 29 etc.…”

Dualistic Fluorescence as Well as Portable Smartphone-Assisted RGB-Relied Sensing Assay for the Ultra-Sensitive Determination of Pendimethalin in Food and Water Samples by AIEE Active Organic Probes

“…23 In order to confirm the 1:1 stoichiometric binding between S1/S2/S3/S4 and PDM, mass spectrometric analysis was carried out. 9 It was depicted that the HRMS spectrum of S1, S2, S3, and S4 exhibited a molecular ion peak at m/z = 360.365, 376.156, 346.253, and 362.452, respectively. However, in the presence of PDM, the peaks were noted to be observed at m/z = 641.253, 657.…”

“…Thus, in order to ensure water and food safety, the implementation of a quick, accurate, selective, and sensitive analytical technique for the herbicide’s residue detection is in demand. It has been determined that the fluorescence-based chemosensors afforded the considerable feasibility of rapid analysis, prominent specificity, and high sensitivity because of the portability, on-site suitability, cost-viability, high affectability, and instrument accessibility. − Taking into account the benefits of fluorescent chemosensors, the current study provides a rapid, simple, and selective fluorescence assay for detecting PDM in real food and water samples. The numerous fluorescence-based chemosensors including conjugated polymers, organic nanoparticles, nanosheets, quantum dots, nanoaggregates, metal–organic frameworks, semiconductor quantum dots, silica nanoparticles, carbon dots, and many others have been reported to recognize and quantify the toxic compounds.…”

In Silico Studies and Design of Scrupulous Novel Sensor for Nitro Aromatics Compounds and Metal Ions Detection

“…For the same, our present study is to signify the neutral molecular recognition ability of calix [4]pyrrole tetracarboxylic acid (ABuCP) ligands. Over the last decade, our group has synthesized several calix based chemosensors [35][36][37]5] but this application can be either an extension to our effort to build up a sensor for NACs. Our goal was to use optical and more specifically colorimetric means of signalling to selectively detect nitro aromatic compounds with low concentration limits and ABuCP serves as an excellent colorimetric sensor.…”