A new chemosensor L based on the naphthalimide moiety was synthesized and characterized. L exhibited the high selectivity and sensitivity for Al(3+) in CH3OH, along with colorimetric and fluorometric dual-signaling responses based on the joint contribution of the ICT and CHEF processes. A 1:1 stoichiometry for the L-Al(3+) complex was formed with an association constant of 7.6×10(4)M(-1), and the limit of detection for Al(3+) was determined as 6.9μM. In addition, L was successfully applied to the determination of Al(3+) in real water samples.
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http://dx.doi.org/10.1016/j.saa.2016.05.030 | DOI Listing |
J Fluoresc
December 2024
Department of Chemistry, Josip Juraj Strossmayer University of Osijek, Cara Hadrijana 8/A, Osijek, 31000, Croatia.
In this work, a novel fluorescent probe (compound 2) based on the Intramolecular charge transfer (ICT) mechanism was designed and successfully applied to determine HS in human serum. Fluorophore 1,8-naphthalimide was chosen, while the azide group was the recognition group for HS determination. By introducing p-toluidine moiety on the imide part of the molecule, a donor-acceptor (D-A) conjugated system was formed.
View Article and Find Full Text PDFBioorg Chem
December 2024
School of Chemistry and Chemical Engineering, Anhui University of Technology, Ma'anshan 243032, PR China. Electronic address:
Peroxynitrite (ONOO) and viscosity are critical indicators of lysosome functionality, intimately linked to numerous diseases' pathophysiological processes. Hence, creating reliable analytical techniques to observe fluctuations in lysosomal ONOO and viscosity is highly important. This study presents the development of a novel naphthalimide-based fluorescent probe, Nap-Cy, specifically designed to target lysosomes and simultaneously detect both ONOO and viscosity.
View Article and Find Full Text PDFBioorg Chem
December 2024
Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education and School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan 450001, China. Electronic address:
Protein Arginine Methyltransferase 5 (PRMT5) is an important player in breast cancer cell activity, and innovative fluorescent ligands targeting this enzyme offer revolutionary, real-time insights into its role in cancer progression, unlocking new avenues for diagnosis and treatment. This study introduces fluorescence-labeled PRMT5 ligands, highlighting their applications in visualizing PRMT5, monitoring enzymatic activity as well as studying toxicity. Herein, we describe the design, synthesis, and cellular imaging of a series of fluorescent ligands that target PRMT5.
View Article and Find Full Text PDFChem Asian J
December 2024
Indian Institute of Science Education and Research Mohali, Chemical Sciences, Sector 81, Knowledge City, IISER Mohali, Sector 81, SAS Nagar, 140306, Mohali, INDIA.
In this work, we have synthesized a multichromophoric light-harvesting antenna, namely, triad, consisting of naphthalene monoimide (NMI) and perylene monoimide (PMI) chromophores. Triad was adsorbed onto polymeric graphitic carbon nitride (g-C3N4) to form triad/g-C3N4 composite, utilized as a photocatalyst for oxidative amidation reaction. This composite photocatalyst demonstrated enhanced photocatalytic activity for the conversion of a variety of aldehydes to amides, leading up to 82% product yield compared to only g-C3N4 or only triad as photocatalysts.
View Article and Find Full Text PDFACS Omega
December 2024
Center for Optical Materials Science and Engineering Technologies (COMSET), Clemson University, Anderson, South Carolina 29625, United States.
The connection between a structured environment and the decay kinetics of an embedded emitter is explored by copolymerizing a naphthalimide derivative within polystyrene-based nanoparticles. The nanoparticles spontaneously self-assemble into a crystalline colloidal array, resulting in a partial photonic bandgap, or rejection wavelength, in the visible regime. The rejection wavelength of the liquid ordered array can be shifted across the emission spectrum of the nanoparticles by dilution with deionized water, which increases the interparticle spacing of the array.
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