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The synthesis of 2,2-bis(1-indol-3-yl)acenaphthylene-1(2)-ones usingnanocatalysis : fluorescent sensing for Cu2+ ions

Mohammadi Ziarani Ghodsi, Khademi Mahdieh, Mohajer Fatemeh, Badiei Alireza, Varma Rajender S.

Ecological Chemistry and Engineering. S

2022

Vol. 29, nr 4

463--475

2,2-bis(1H-indol-3-yl)acenaphthylene-1(2H)-ones were synthesised by the reaction of acenaphthenequinone and 2 equivalents of indole using Fe3O4@SiO2@Si-Pr-NH-CH2CH2NH2 as the basic magnetic nanocatalyst, assembled under greener and sustainable conditions in high purity and yields. Furthermore, the photoluminescence properties of 2,2-bis(2-methyl-1H-indol-3-yl)acenaphthylene-1(2H)-one were exploited for the sensing of copper ions in the mixed solvent systems comprising H2O and CH3CN in excitation wavelength at 410 nm with a detection limit of 9.5 ∙ 10–6 M.

2,3-dihydro-quinazolin-4(1H)-one as a fluorescent sensor for Hg2+ ion and its docking studies in cancer treatment

Mohhamadi Ziarani Ghodsi, Tahmasebi Ashtiani Shadi, Mohajer Fatemeh, Badiei Alireza, Gaikwad Sunil V., Varma Rajender S.

Chemistry-Didactics-Ecology-Metrology

2022

R. 27, NR 1-2

25--33

The 2,3-dihydro-quinazolin-4(1H)-one was synthesised via the deployment of SBA-Pr-SO3H and its application was explored as a highly selective fluorescent sensor for Hg2+ ion; fluorescence intensity was decreased selectively by Hg2+ ions. Furthermore, this compound also indicated for its superb anti-interference ability among other ions. It is important to mention that this compound could be employed to detect a very low amount of Hg2+ ions, which are highly toxic and general contaminants. The docking study shows that the molecule, 2,3-dihydro-quinazolin-4(1H)-one, is a good inhibitor for the 5ACC enzyme.

Pochodne kumaryny jako molekularne sensory fluorescencyjne stosowane do monitorowania procesów fotopolimeryzacji

Pudo A., Kamińska I., Ortyl J.

Technical Issues

2015

nr 1

47--53

This paper presents research on the use of coumarin derivatives as fluorescent molecular probes for monitoring cationic and free radical photopolymerization processes, using for that purpose modern FPT method (Fluorescence Probe Technology). Literature review on the main trends of applications and spectroscopic properties of coumarin derivatives was described. In the following part of publication, relations between change of fluorescence characteristic and physicochemical changes occurring in the polymerizable composition, (both microviscosity and polarity) were explained. This article also presented the basic methodology of studies on the control of the photopolymerization reaction on-line and off-line, using fluorescence spectroscopy and parameters such as: fluorescence intensity ratio R, number of progress of the reaction β and molecular probe sensitivity S.