AI Article Synopsis
- A new fluorescent chemosensor called HL detects metal cations (Fe and Al) and the CN anion using a simple and efficient synthesis method.
- In solutions like DMSO and DMF, HL shows a strong response to the presence of Fe and Al, with significant changes in its fluorescence emissions.
- The sensor uniquely identifies CN by changing its chemical structure, which is supported by various characterization techniques and theoretical calculations.
Article Abstract
A naphthylamide based fluorescent chemosensor, N,N'-(1,2-phenylene)bis(1-hydroxy-2-naphthamide) (HL), for detection of Fe and Al cations as well as CN anion is reported. This compound has been synthesized by a novel and facile synthetic method with high yield and characterized by FT-IR, H NMR, elemental analysis, and UV-Vis spectroscopy. It could detect Fe and Al ions in different media with different excitation and emission wavelengths. In DMSO solution, HL showed selective ON-OFF quenching of its 451 nm emission in the presence of Fe. On the other hand, in DMF solution, HL exhibited selective OFF-ON fluorescence upon the addition of Al, the intensity at 429 nm increases drastically by 24-fold. Also, among the anions, the probe can selectively distinguish CN by deprotonation of OH and NH groups, as proved by H NMR titration. TD-DFT calculation supports the UV-Vis and fluorescence measurements of the chemosensor.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.saa.2019.117753 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Chirality Evolution of Supramolecular Helices by Electron Transfer Assisted Secondary Nucleation.
Adv Sci (Weinh)
December 2024
State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, Shanghai, 200230, P. R. China.
Chirality evolution is ubiquitous and important in nature, but achieving it in artificial systems is still challenging. Herein, the chirality evolution of supramolecular helices based on l-phenylalanine derivative (LPF) and naphthylamide derivate (NDIAPY) is achieved by the strategy of electron transfer (ET) assisted secondary nucleation. ET from LPF to NDIAPY can be triggered by 5 s UV irradiation on left-handed LPF-NDIAPY co-assemblies, leading to NDIAPY radical anions and partial disassembly of the helices.
View Article and Find Full Text PDFDetection of human salivary stress biomarkers using an easy-to-use array sensor based on fluorescent organic molecules.
Biosens Bioelectron
February 2025
Department of Chemical Sciences, University of Catania, viale A. Doria 6, 95125, Catania, Italy; INSTM Udr of Catania, Viale Andrea Doria 6, 95125, Catania, Italy. Electronic address:
Article Synopsis
- The human body produces catecholamine neurotransmitters like dopamine, adrenaline, and cortisol during stress, making their levels important for stress management and medical use.
- A new analytical device has been developed that can simultaneously detect these three molecules in human saliva without needing any pre-treatments.
- The device uses a sensor array with fluorescent chemical receptors, demonstrating high accuracy and selectivity over a concentration range of 1 pM to 1 mM, marking it as the first point-of-care tool for this type of measurement in saliva.
Pseudoalteromonas simplex sp. nov. Isolated from the Skin of Bandtail Puffer Fish (Sphoeroides spengleri).
Curr Microbiol
October 2024
Institute of Biology, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.
Article Synopsis
- - A new bacterial isolate named A520 was discovered from the skin of the bandtail puffer fish in Brazil, characterized as Gram-negative, flagellated, and aerobic, with optimal growth conditions at 25-30 °C and 3% salt.
- - The genome of A520 has a size of 4.5 Mb, containing 4082 coding genes, and shows high similarity (97.9%) to the bacteria Pseudoalteromonas shioyasakiensis, indicating it may belong to a related lineage.
- - This novel species, named Pseudoalteromonas simplex sp. nov., exhibits unique phenotypic features and contains gene clusters for bioactive compounds that may relate to the ecological interactions
Thienyltriazine Triamides: Thickness Insensitive Interlayer Materials Featuring Fine-Tuned Optoelectronic and Aggregation Characters for Efficient Organic Solar Cells.
Angew Chem Int Ed Engl
January 2025
State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, China.
A novel class of thienyltriazine triamides (TTTAs) was facile synthesized and firstly used as cathode interlayers (CILs) for organic solar cells (OSCs). By utilizing different aromatic arms and pendant polar groups, their optoelectronic properties and aggregation behaviors were effectively modulated. The combination of thienyltriazine (TT) core, naphthylamide arm and imidazole pendant group endows TT-N-M with suitable energy levels, intensified work function tunability, higher conductivity, and well-balanced crystallinity and film-forming ability, boosting both the performance and stability of OSCs significantly.
View Article and Find Full Text PDFPreparation and performance study of rhodamine B naphthylamide, a fluorescent probe, for the detection of Fe.
Anal Methods
December 2023
College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China.
Fe is essential for humans, and its deficiency or excess can be harmful to human health; thus, it is crucial to detect Fe. Herein, a novel 1,8-naphthylimide rhodamine-based fluorescent probe (NA-RhBEA) was prepared from rhodamine B, anhydrous ethylenediamine, and 1,8-naphthoic anhydride. This fluorescent probe complexes Fe with N and O on the carboxyl groups of its spironolactam structure and part of the 1,8-naphthalenedicarboxylic anhydride structure, which results in spironolactam ring-opening and fluorescence.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!