A Highly Water-Soluble and Solid State Emissive 1,8-Naphthalimide as a Fluorescent PET Probe for Determination of pHs, Acid/Base Vapors, and Water Content in Organic Solvents
作者:Nikolai I. Georgiev、Paoleta V. Krasteva、Ventsislav V. Bakov、Vladimir B. Bojinov
DOI:10.3390/molecules27134229
日期:——
the INH logicgate was achieved using NaOH and water as chemical inputs, where NaOH is the disabler and the water is an enabler. In addition, the probe showed effective fluorescence “off-on” reversibility on glass support after exposure to acid and base vapors, which defines it as a promising platform for rapid detection of acid/base vapors in the solid-state, thus extending the molecular sensing concept
2-Hexylaminoethylamidonaphthalimide as Cu2+ sensor
作者:T. Sheshashena Reddy、A. Ram Reddy
DOI:10.1016/j.saa.2014.02.120
日期:2014.7
New fluorescent hexylaminoalkylamidonaphthalimides were synthesized and their fluorescence was investigated in different solvents. The fluorescence intensity of hexylaminoalkylamidonaphthalimides is directly related to the number of carbons in the intervening chain between the naphthalimide and n-hexylamine. Among the hexylaminoalkylamidonaphthalimides, 2-hexylaminoethylamidonaphthalimide was developed into a new fluorogenic probe. The bidentate 2-hexylaminoethylamidonaphthalimide acted as fluorescent chemosensor with a high selectivity and suitable affinity towards Cu2+ in aqueous medium (pH 7.4). This technique of detection of Cu2+ is highly sensitive and can detect 0.1 mu M range. (C) 2014 Elsevier B.V. All rights reserved.
Selective inhibition of β-N-acetylhexosaminidases by thioglycosyl–naphthalimide hybrid molecules
作者:Wei Chen、Shengqiang Shen、Lili Dong、Jianjun Zhang、Qing Yang
DOI:10.1016/j.bmc.2017.11.042
日期:2018.1
To develop selective inhibitors for beta-N-acetylhexosaminidases which are involved in a myriad of physiological processes, a series of novel thioglycosyl-naphthalimide hybrid inhibitors were designed, synthesized and evaluated for inhibition activity against glycosyl hydrolase family 20 and 84 (GH20 and GH84) beta-N-acetylhexosaminidases. These compounds which incorporate groups with varied sizes and lengths at the linker region between thioglycosyl moiety and naphthalimide moiety are designed to improve the selectivity and stacking interactions. The GH84 human O-GlcNAcase (hOGA) was sensitive to the subtle changes in the linker region and the optimal choice is a small size linker with six atoms length. And the GH20 insect beta-N-acetylhexosaminidase OfHex1 could tolerate compounds with a hydrophobic bulky linker. Especially, the compound 5c (hOGA, K-i = 3.46 mu M; OfHex1, K-i > 200 mu M) and the compound 6f (hOGA, K-i > 200 mu M; OfHex1, K-i = 21.81 mu M) displayed high selectivity. The molecular docking results indicated that the inhibition mechanism was different between the two families due to their different structural characteristics beyond the active sites. These results provide some promising clues to improve selectivity of potent molecules against beta-N-acetylhexosaminidases. (C) 2017 Elsevier Ltd. All rights reserved.
KRASOVITSKIJ B. M.; OSTIS L. L.; SHEVCHENKO EH. A.; NESTERKINA I. G.; ISA+, V SB. CZHINTILLYATORY I ORGAN. LYUMINOFORY BZHP. 4. XARKOV, 1975, 5-15
作者:KRASOVITSKIJ B. M.、 OSTIS L. L.、 SHEVCHENKO EH. A.、 NESTERKINA I. G.、 ISA+