610-04-8Relevant articles and documents
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Ismailskii,Bogoslowksii
, (1937)
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A novel sensitive and selective chemosensor for fluorescent detection of Zn2+in cosmetics creams based on a covalent post functionalized Al-MOF
Kamel, Rasha M.,Shahat, Ahmed,Anwar, Zeinab M.,El-Kady, Hamdy A.,Kilany, Esraa M.
, p. 8054 - 8063 (2021/05/21)
A material was fabricated based on the Schiff base reaction to achieve covalent attachment of NH2-MIL-53(Al) and the 3-formylsalicylic acid ligand (3-FSA) for fluorimetric detection of Zn2+ ions based on inhibition and destruction of CN isomerization and ESIPT. The low limit of detection and limit of quantification were calculated at optimum conditions. The selectivity of the 3-FSA sensor was achieved against some interfering ions. The new sensor was applied for the determination of Zn2+ ions in cosmetic cream products and the obtained results were validated through comparison with ICP-OES. The data indicated that the 3-FSA sensor provided a sensitive, selective, fast, direct and efficient determination of Zn2+ ions with good reproducibility and reversibility.
Synthesis and fluorescence properties of benzoxazole-1,4-dihydropyridine dyads achieved by a multicomponent reaction
Affeldt, Ricardo Ferreira,De Amorim Borges, Ant?nio César,Russowsky, Dennis,Severo Rodembusch, Fabiano
, p. 4607 - 4614 (2014/11/07)
Photoactive 2-(2′-hydroxyphenyl)benzoxazole-1,4-dihydropyridine (HBO-DHP) dyads were obtained by a multicomponent one-pot Hantzsch synthesis using a fluorescent aldehyde, a 1,3-dicarbonylic compound and ammonium acetate. The key step in this synthetic methodology was the synthesis of the formyl benzoxazole derivative through a Duff-modified functionalization protocol. UV-Vis absorption and fluorescence emission spectroscopies were also applied to better understand the photophysics of these compounds. The three novel fluorescent compounds were obtained in moderate yields as stable solids with absorption in the UV region and emission in the blue-green region. Preliminary results indicate that after excitation both HBO and DHP fluorophores behave independently in the HBO-DHP structure. the Partner Organisations 2014.
