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Central Research Laboratory, Kastamonu University, 37200, Kastamonu, Turkey.
Fluorescence characterization of halophilic archaeal C50 carotenoid-bacterioruberin extracts was investigated using UV/Vis and steady-state fluorescence spectrophotometry in solvents with different polarity. Different extracts showed maximum absorption and fluorescence wavelengths between 369-536 nm and 540-569 nm. Stokes' shifts varied between 50-79 nm depending on the solvent.
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Bioorganic Laboratory, Department of Chemistry, University of Delhi, Delhi, 110007, India; Department of Chemistry, Ramjas College, University of Delhi, Delhi, 110007, India. Electronic address:
Nickel, an essential transition metal, plays a vital role in biological systems and industries. However, exposure to nickel can cause severe health issues, such as asthma, dermatitis, pneumonitis, neurological disorders, and cancers of the nasal cavity and lungs. Due to nickel's toxicity and extensive industrial use, efficient sensors for detecting Ni ions in environmental and biological contexts are essential.
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CQHC, a novel colorimetric fluorescent sensor, developed for the selective sensing of ions and well characterised, including SC-XRD. It demonstrated selective sensing for Co, Zn, Hg and F using absorbance titration at 420 nm, 446 nm and the binding constants estimated follows the order F > Co > Hg > Zn. On light of this, molecular logic gate was built for CQHC's selective multi-ion detection.
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Department of Fine Chemistry, Seoul National University of Science and Technology, Seoul, 01811, Korea.
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View Article and Find Full Text PDFSynthesis of fluorescent dicyanomethylenevinyl-1,3-dicoumarin compounds with donor-acceptor-π-donor (D-A-π-D) system and investigation of their photophysical, NLO, and chemosensor properties: Part 1.
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Department of Chemistry, Faculty of Science, Gazi University, Yenimahalle, Ankara 06560, Turkey. Electronic address:
Coumarin compounds have heterocyclic core with different properties such as high quantum yields, broad Stokes shifts, and superior photophysical and biological activity. It is known that fluorescence properties increase with increased intramolecular charge transfer in systems where electron-withdrawing or donor groups are attached to different positions of the coumarin compound. When these compounds interact with analytes in the environment, the analytes in the environment can be detected by quenching or increasing fluorescence.
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