Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
A new podand-type dioxaoctanediamide-based chemosensor having two pyrene moieties was prepared, and its fluoroionophoric behaviors toward transition-metal ions were investigated. Pyrene-appended dioxaoctanediamide 1 showed a selective fluorescence quenching toward Hg2+ ions over other transition-metal ions in an aqueous methanol solution. Unique responses in pyrene monomer and excimer emissions allowed selective ratiometric determination of Hg2+ ions in aqueous environments, and the detection limit was found to be 1.6 x 10(-6) M. [structure: see text]
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1021/ol070143r | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Gold nanoparticles-enhanced hollow fiber surface plasmon resonance sensor for highly sensitive detection of mercury(II) ions.
Analyst
September 2025
School of Information Science and Technology, Fudan University, 220 Handan Rd, Shanghai 200433, China.
Mercury(II) ions (Hg) are one of the most common and highly toxic heavy metal ions, which can contaminate the environment and damage the human health. Therefore, the precise detection of trace Hg concentration is particularly important. Herein, gold nanoparticles-enhanced silver-coated hollow fiber (HF) surface plasmon resonance (SPR) sensor was developed for the highly sensitive detection of Hg ions.
View Article and Find Full Text PDFDetection of Pb and Fe ions in wastewater using a low cost portable optical sensor derived from green synthesized metal oxide nanoparticle on a paper substrate.
Anal Chim Acta
November 2025
Department of Physics, University of Lucknow, Lucknow, India; Department of Physics and Astrophysics, University of Delhi, India. Electronic address:
Background: Water contamination is a global challenge, primarily due to heavy metal ions like lead (Pb), iron (Fe), cadmium (Cd), andmercury (Hg) as well as dyes. These pollutants enter the ecosystem from industrial waste and runoff, accumulate in the environment and pose a high risk to humans, animals and plants. Various sensors, such as colorimetric sensors, and electrochemical sensors have been developed to detect these ions and dyes.
View Article and Find Full Text PDFThe role of XTHs in cell wall immobilization of metal ions.
Plant Physiol Biochem
September 2025
Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, China; Sichuan Ecological Protection and Construction Engineering Technology Research Centre, Sichuan University, Chengdu, 610065, China. Electronic address: sh
Toxic metal ion contamination poses a significant environmental challenge, severely impacting plant growth, development, and reproduction. To cope with metal-induced stress, plants have evolved diverse molecular and physiological mechanisms. Among these, the xyloglucan endotransglucosylase/hydrolase (XTH) gene family, which encodes enzymes responsible for cell wall remodeling, plays a crucial role in enhancing plant resilience to metal ion stress.
View Article and Find Full Text PDFA Selective Pyridinedicarbohydrazide-based "naked-eye" Fluorescent Probe for Detecting Cu Ions in Aqueous Solutions.
J Fluoresc
September 2025
Department of Organic Chemistry, Faculty of Chemistry, University of Mazandaran, Babolsar, Iran.
A novel fluorescent and colorimetric probe (L3), based on 2,6-pyridinedicarbohydrazide, was rationally designed and synthesized for the highly selective and reversible detection of Cu²⁺ ions. The structural and optical properties of the probe were comprehensively characterized by FT-IR, ¹H NMR, UV-Vis spectroscopy, fluorescence analysis, ESI⁺-MS, and elemental analysis. The probe L3 displayed a high selectivity, high sensitivity and quick response to Cu ions in the presence of other competing cations including Ba, K, Pb, Hg, Al, Zn, Fe, Tl, Mg, Ni, Nd, Fe, Ag, Ca, Cs, Co, Cd, Sr, and Mn ions).
View Article and Find Full Text PDFAdvancing Shewanella-based whole-cell biosensors: A comprehensive review on heavy metal detection.
Colloids Surf B Biointerfaces
August 2025
Technology Innovation Center for Land Engineering and Human Settlements by Shaanxi Land Engineering Construction Group Co., Ltd and Xi'an Jiaotong University, School of Human Settlements and Civil Engineering, Xi'an Jiaotong University, Xi'an 710049, China. Electronic address:
Whole-cell biosensors are widely used to detect the toxicity of heavy metals owing to their ease of culturing, low cost, and rapid response times. Shewanella species, electrically active microorganisms capable of extracellular electron transfer (EET), are often employed as sensitive bio-elements in biosensors. However, the EET efficiency and heavy metal tolerance of Shewanella species are influenced by various environmental factors, such as pH, carbon sources, and ion concentrations.
View Article and Find Full Text PDF