Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
The use of small molecules as chemosensors for ion detection is rapidly gaining popularity by virtue of the advantages it offers over traditional ion sensing methods. Herein we have synthesized a series of acridine(1,8)diones (7a-7l) and explored them for their potential to act as chemosensors for the detection of various anions such as fluoride (F), acetate (OAc), bromide (Br), iodide (I), bisulfate (HSO ), chlorate (ClO ), perchlorate (ClO ), cyanide (CN), and thiocyanate (SCN). Acridinediones were found to be highly selective chemosensors for fluoride ions only. To investigate in detail the mechanism of selective fluoride ion sensing, detailed spectroscopic studies were carried out using UV-visible, fluorescence and H NMR spectroscopy. Fluoride mediated (NH) proton abstraction of acridinedione was found to be responsible for the observed selective fluoride ion sensing. Quantum mechanical computational studies, using time dependent density functional theory (TDDFT) were also carried out, whereupon comparison of acridinedione interaction with fluoride and acetate ions explained the acridinedione selectivity for the detection of fluoride anions. Our results provide ample evidence and rationale for further modulation and exploration of acridinediones as non-invasive chemosensors for fluoride ion detection in a variety of sample types.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9077206 | PMC |
| http://dx.doi.org/10.1039/c7ra11974g | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Bioinspired neuromorphic memristor with logical operation for precision sperm detection in seminiferous tubules.
Mater Today Bio
October 2025
Department of Reproductive Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, China.
Clinically, even in patients diagnosed with non-obstructive azoospermia, spermatogenesis may be present in some seminiferous tubules, which gives the patient hope of having biological offspring of his own. However, there is still a blank for high-precision detection technologies to support accurate diagnosis and effective treatment. In this work, we successfully developed a minimally invasive fine needle detection memristive device that features a structure composed of Ag/CH-MnO/FTO by utilizes the organic-inorganic heterojunction as functional layer.
View Article and Find Full Text PDFAn electrochemical biosensor for detection of copper(II) based on FeO@Au magnetic nanoparticles and Cu-dependent DNAzyme assisted nicking endonuclease signal amplification.
Analyst
September 2025
Functional Nanomaterial-based Chemical and Biological Sensing Technology Innovation Team of Department of Education of Yunnan Province, Yunnan Minzu University, Kunming 650504, P. R. China.
Copper ions are essential elements in the human body and participate in various physiological activities in the bodies of organisms. Herein, an ultrasensitive electrochemical biosensor was developed for detection of copper ions (Cu) based on FeO@Au magnetic nanoparticles (FeO@Au MNPs) and a Cu-dependent DNAzyme assisted nicking endonuclease signal amplification (NESA) strategy. dsDNA is formed by a hybridization reaction between DNA S2 and S1 immobilized on the surface of FeO@Au MNPs.
View Article and Find Full Text PDFGold 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 PDFSolid-state organic electrochemical transistors.
Mater Horiz
September 2025
Faculty of Science, School of Chemistry and Physics, Queensland University of Technology (QUT), Brisbane, QLD 4000, Australia.
Organic electrochemical transistors (OECTs) continue to be the subject of much detailed and systematic study, being suitable for a diverse range of applications including bioelectronics, sensors, and neuromorphic computing. OECTs conventionally use a liquid electrolyte, and this architecture is well suited for sensing or bio-interfacing applications where biofluids or liquid samples can be used directly as the electrolyte. A more recent trend is solid-state OECTs, where a solid or semi-solid electrolyte such as an ion gel, hydrogel or polyelectrolyte replaces the liquid component for an all-solid-state device.
View Article and Find Full Text PDFMolecular switches and real-time ion sensing in pyridinium circuits a single-molecule STM-break junction.
Nanoscale Horiz
September 2025
Departamento de Ciencias del Ambiente, Facultad de Química y Biología, Universidad de Santiago de Chile (USACH), Av. Libertador Bernardo O'Higgins 3363, Estación Central, Santiago, 9170022, Chile.
The functional electronic and spectro-electrochemical properties of two structural pyridinium isomers, Py_Down-BF and Py_Up-BF, were studied at the single-molecule level using the STM-BJ technique. These isomers differ in the position of the redox-active pyridinium core. The aim was to identify the role of core's position in promoting reversible switching between electromers (redox isomers) in solution and at the gold-pyridinium-gold junction circuit.
View Article and Find Full Text PDF