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Selective Turn-On Luminescent Recognition of Perchlorate Ion Using Pyridyl-Benzimidazole-Based Probe.
Luminescence
January 2025
Department of Chemistry, School of Advanced Engineering, UPES Dehradun, Dehradun, Uttarakhand, India.
Anions play a crucial role in various environmental, chemical, and biological processes. Among various anions, the production of perchlorate (ClO ) ion is expected to rise in upcoming years, and thus, an efficient method for the detection of perchlorate ion is highly desirable. In this effort, a pyridyl-benzimidazole-based luminescent probe (RSB1) containing two N-H donor sites has been synthesized for selective detection of perchlorate ion.
View Article and Find Full Text PDFPyrene functionalized organic cation receptor-based "turn-on" fluorescence approach for monitoring of chlorpyrifos in food, soil, and water samples.
Anal Chim Acta
January 2025
Department of Chemistry, Indian Institute of Technology Ropar, Rupnagar, Punjab, 140001, India. Electronic address:
Background: The unregulated use of pesticides by farmers, for crop productivity results in widespread contamination of organophosphates in real environmental samples, which is a growing societal concern about their potential health effects. The conventional approaches for the monitoring these organophosphate-based pesticides which include immunoassays, electrochemical methods, immunosensors, various chromatography techniques, along with some spectroscopic methods, are either costly, sophisticated, or involves the use of different metal complexes. Therefore, there is an urgent need for sensitive, quick, and easy-to-use detection techniques for the screening of widely used organophosphate-based pesticides.
View Article and Find Full Text PDFCataluminescence Sensor Based on Halloysite Nanotubes/MgO Nanocomposite for Rapid Detection of Ether.
Luminescence
December 2024
Henan Key Laboratory of Biomolecular Recognition and Sensing, College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu, China.
MgO surface makes it easy to introduce a certain amount of oxygen vacancy and can enhance catalytic reaction activity. Besides, as a silicoaluminate mineral material, halloysite nanotube (HNT) has a unique tubular structure. In this paper, the HNTs@MgO composite was successfully synthesized based on natural clay material HNTs as a carrier, and the CTL sensor based on HNTs@MgO was successfully developed for the rapid determination of ether in air.
View Article and Find Full Text PDFUpconverting Luminescent MOF for Highly Sensitive Dual-Mode Recognition of Synthetic Dyes.
Inorg Chem
December 2024
Department of Chemistry, Applied Sciences Cluster, UPES Dehradun, Energy Acres Building, Dehradun 248007, Uttarakhand, India.
Lanthanide-based luminescent materials hold promise in sensing applications due to their distinct optical properties. Though advancements in lanthanide-based metal-organic frameworks (MOFs) have enhanced downshifting luminescence, achieving upconversion remains challenging. In this effort, we prepared upconverting ytterbium-doped europium MOFs (%Yb-EuMOFs; = 10, 20, and 30) via the solvothermal method using 2,6-naphthalenedicarboxylic acid (NDC) as an organic linker.
View Article and Find Full Text PDFStudy on the influence of soil properties on fluorescence intensity of polycyclic aromatic hydrocarbons.
Environ Sci Pollut Res Int
December 2024
College of Engineering and Technology, Tianjin Agricultural University, 22 Jinjing Road, Tianjin, 300384, China.
The properties of soil matrix have an impact on the fluorescence intensity of polycyclic aromatic hydrocarbons (PAHs), which restricts the application of fluorescence spectral technology in detecting PAHs in soil. The present study explored the mechanism of the influence of soil matrix properties on the fluorescence intensity of PAHs from the perspective of specific surface area (SSA). A three-factor three-level experimental design was adopted for investigating the relationship between soil matrix properties, PAH fluorescence intensity, and soil SSA.
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