A water-soluble bis-anthracenyl tetralactam binds biogenic heterocycles with high affinities in aqueous solution, rising to 107 M-1 for the purine hypoxanthine. Recognition occurs through a combination of hydrogen bonding and hydrophobic interactions, and results in fluorescence changes which suggest applications in sensing.
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http://dx.doi.org/10.1039/d0cc03609a | DOI Listing |
Molecules
December 2024
Institute of Resources and Environmental Engineering, Shanxi University, Taiyuan 030032, China.
The real-time measurement of the content of impurities such as iron and aluminium ions is one of the keys to quality evaluation in the production process of high-purity lithium carbonate; however, impurity detection has been a time-consuming process for many years, which limits the optimisation of the production of high-purity lithium carbonate. In this context, this work explores the possibility of using water-soluble fluorescent probes for the rapid detection of impurity ions. Salicylaldehyde was modified with the hydrophilic group dl-alanine to synthesise a water-soluble Al fluorescent probe (Probe A).
View Article and Find Full Text PDFSpectrochim Acta A Mol Biomol Spectrosc
January 2025
Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Institute of Applied Chemistry, Guizhou University, Guiyang 550025, China. Electronic address:
A bromophenylpyridine derivative (N1) was designed, synthesized, and the molecule was incorporated into the cavity of the cucurbit[8]uril (Q[8]) as a guest to form a 2:1 host-guest complex. This complex demonstrates good room temperature phosphorescence (RTP) properties in aqueous solution. The host-guest interaction and optical properties of N1@Q[8] in aqueous solution were studied by means of H NMR, ultraviolet-visible absorption spectroscopy, fluorescence spectroscopy, phosphorescence spectroscopy, scanning electron microscopy and inverted fluorescence microscopy.
View Article and Find Full Text PDFArch Pharm (Weinheim)
January 2025
Program in Food and Nutrition, Federal University of the State of Rio de Janeiro (UNIRIO), Rio de Janeiro, Brazil.
The Amazon rainforest is renowned for its biodiversity and as a reservoir of edible and medicinal plants. The phytochemicals in murici and taperebá fruits serve as natural antioxidants, contributing to cultural preservation, ecosystem protection, and economic opportunities. However, limited scientific research on their composition and health benefits hinders their recognition as functional foods.
View Article and Find Full Text PDFFood Sci Biotechnol
January 2025
Dr. S. S. Bhatnagar University Institute of Chemical Engineering & Technology, Panjab University, Chandigarh, 160014 India.
Nanotechnology has gained recognition as the next uprising technology in numerous sectors, together with food industry and agriculture. Diminution of particle size to nanoscale range enhances the surface area, eventually surface-to-volume ratio, subsequently enhances their reactivity by several times, modifying optical, electrical, and mechanical features. Nanotechnology can also modify the aqueous solubility, thermal stability, and bioavailability in oral delivery of bioactive nutraceuticals.
View Article and Find Full Text PDFSpectrochim Acta A Mol Biomol Spectrosc
December 2024
School of Water Conservancy and Environment, University of Jinan, Jinan 250022, China. Electronic address:
Mercury is considered to be one of the most typical and toxic elements of heavy metals in the environment, threatening human health even at very low level. For this reason, we developed a new fluorescence-enhanced probe RTQ based on resazurin dye, which realizes the selective detection of Hg by using carbonothioate group as the recognition receptor. Probe RTQ can quantitatively assay Hg ranging from 0-0.
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