Temat: quinone - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Effect of plant o-dihydroxyphenols and quinone on generation of reactive oxygen species within the grain aphid tissues
Autorzy:: Lukasik, I.
Golawska, S.
Powiązania:: https://bibliotekanauki.pl/articles/55446.pdf
Data publikacji:: 2008
Wydawca:: Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Tematy:: Sitobion avenae
reactive oxygen species
Homoptera
cereal
hydrogen peroxide
Aphididae
tissue
grain aphid
plant pest
phenol
o-dihydroxyphenol
quinone
Opis:: Effect of some dietary o-dihydroxyphenols and quinones on hydrogen peroxide (H2O2) concentration within tissues of the grain aphid Sitobion avenae (F.) (Homoptera, Aphididae) has been studied. Among the studied aphid morphs the highest level of H2O2 total was noted for winged adults (alatae) and the lowest for larvae. The aphids exposed to the dietary pro-oxidative o-dihydroxyphenols demonstrated significantly higher concentration of hydrogen peroxide than the control ones. Among the studied compounds, caffeic acid showed the strongest effect on the H2O2 level within the aphid tissues. The highest concentration (0.1%) of this phenolic acid caused above 2-fold increase in the content of this radical within the grain aphid tissues. The significance of these results for understanding the toxicity of phenols to cereal aphids is discussed.
Źródło:: Pestycydy; 2008, 3-4; 117-124
0208-8703
Pojawia się w:: Pestycydy
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Oligonol prevented the relapse of dextran sulfate sodium-ulcerative colitis through enhancing Nrf2-mediated antioxidative defense mechanism
Autorzy:: Kim, K.-J.
Park, J.-M.
Lee, J.-S.
Kim, Y.S.
Kangwan, N.
Han, Y.-M.
Kang, E.A.
An, J.M.
Park, Y.K.
Hahm, K.-B.
Powiązania:: https://bibliotekanauki.pl/articles/69501.pdf
Data publikacji:: 2018
Wydawca:: Polskie Towarzystwo Fizjologiczne
Tematy:: ulcerative colitis
inflammatory bowel disease
oxidative stress
oligonol
polyphenol
adaptive response
quinone oxidoreductase
relapse
nuclear factor-kappaB
tumour necrosis factor-alpha
Źródło:: Journal of Physiology and Pharmacology; 2018, 69, 3
0867-5910
Pojawia się w:: Journal of Physiology and Pharmacology
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Synthesis, Characterization and DFT Calculations of 4-((2-Hydroxyethyl)imino)naphthalen-1(4H)-One and its Cu(II) Complex
Autorzy:: Gorgulu, G.
Dede, B.
Powiązania:: https://bibliotekanauki.pl/articles/1029785.pdf
Data publikacji:: 2018-02
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: Schiff base
quinone
metal complex
spectroscopy
copper(II)
DFT
Opis:: We have reported herein the synthesis of a novel quinone derivative ligand containing the Schiff base and its Cu(II) complex starting from 1,4-naphthoquinone. Synthesized compounds were characterized using the Fourier transform infrared, UV-Vis, elemental analysis, inductively coupled plasma optical emission spectrometry, molar conductivity, and magnetic susceptibility measurements. The free ligand was also characterized by ¹H- and ¹³C-NMR spectra. Elemental analyses, stoichiometric and spectroscopic data indicated that the metal:ligand ratio is 1:2 and octahedral structure is proposed for the metal complex of the Schiff base ligand. Computational quantum calculations were also performed using DFT/B3LYP level of theory with 6-311++G(d,p) basis set for the synthesized ligand. It was found that the experimental and theoretical spectroscopic data were consistent.
Źródło:: Acta Physica Polonica A; 2018, 133, 2; 239-243
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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