Browsing by Title Artículos de revistas
Now showing items 2417-2436 of 2801
-
(The American Society of Photobiology, 2014)The electronic nature of substituents attached to the 4-aryl moiety of 1,4-dihydropyridines strongly affects the photophysical and photochemical behavior of these family of compounds. The presence of an electron donor ...
-
(CHEMICAL SOC JAPAN, 2002-09)Hydroxyl and phenyl radical spin trapping rates by alpha-phenyl-N-t-butylnitrone (PBN, N-benzylidene-t-butylamine N-oxide) and its analogs were determined using a competitive trapping method. Hydroxyl radical was generated ...
-
(1994)AM1 full geometry optimization of seven substituted cyclic hydroxamic acids (Hx) was performed. A qualitative correlation between Elumo vs Hammett's σP was observed. The reactivity of these 7-substituted Hx with hard ...
-
(ELECTROCHEMICAL SOC INC, 2001-10)We have synthesized three nitrocompounds in order to mimic the model structure of some relevant drugs such as nifedipine, nitrendipine, nisoldipine, nimodipine, and related ones, in order to investigate the effect of ...
-
(PERGAMON-ELSEVIER SCIENCE LTD, 2005-06-28)The title compound (sucrose Co(phen)(2)) is a dication with the Delta-configuration at Co(III) and ligation through O-2(g) and OH-1(f). Earlier geometrical optimization with semi-empirical PM3(tm) parameters had fitted ...
-
(PERGAMON-ELSEVIER SCIENCE LTD, 2002-10-01)The two 1,10-phenanthroline ligands in the mixed Delta-cobalt(III) complex with sucrose are in different environments relative to the sucrose ligand as shown by differences in their H-1 NMR signals and predicted by structural ...
-
(PUBLIC LIBRARY SCIENCE, 2011-12-28)One of the several uses of sucrose detergents, as well as other micelle forming detergents, is the solubilization of different membrane proteins. Accurate knowledge of the micelle properties, including size and shape, are ...
-
(ELSEVIER SCIENCE BV, 2008-10-17)A systematic study of the microwave-assisted extraction coupled to solid-phase extraction of nine organophosphorus pesticides (dimethoate, diazinon, pirimiphos methyl, parathion methyl, malathion, fenthion, chlorpyriphos, ...
-
(MDPI, 2022)Simple Summary Honey is biologically desirable for antioxidant powers and antiradical capacities. However, pesticide use in farming means that any nearby beehives might become contaminated with undesirable and often harmful ...
-
(2004)Biomineralization leads to the formation of inorganic crystals with unique, ordered, refined shapes that are regulated by specific macromolecules. This process has been a source of inspiration for exploring novel approaches ...
-
(2005)A series of phenethylamine derivatives with various ring substituents and with or without N-methyl and/or C-alpha methyl or ethyl groups was synthesized and assayed for their ability reversibly to inhibit monoamine oxidase ...
-
(2011)The intracellularly-occurring Cu(I)-glutathione complex (Cu(I)-[GSH](2)) has the ability to reduce molecular oxygen into superoxide radicals (O-2(center dot-)). Based on such ability, we addressed the potential of this ...
-
(Asociación Interciencia, 2007-12)Las combinaciones de cereales-leguminosas ofrecen proteínas de alta calidad debido a la compensación de sus aminoácidos esenciales. Se seleccionó la quinua (Chenopodium quinua Willd) y el lupino (Lupinus albus L.) con ...
-
(Elsevier B.V., 2018)© 2018Zn1-xNixO thin films (nominal x=0, 0.01, 0.02, 0.04, 0.1 and 0.2) were synthesized on silicon substrates through a sol-gel/dip-coating technique. Samples were studied by X-ray diffraction, scanning electron microscopy, ...
-
(Elsevier, 2015)tThe chemosensor 3-phenyl-7-(pyrid-2-yl)-[1,2,3]triazolo[1,5-a]pyridine (PhPTP) used in combinationwith two different cyclodextrins, enable its solubilization and stabilization in aqueous solution. Thebehavior of the ...
-
Supramolecular reversible On-Off switch for singlet oxygen using cucurbit[n]uril inclusion complexes (American Chemical Society, 2017)A novel strategy to control the generation of singlet oxygen by a photosensitizer using cucurbit[n]urils inclusion complexes is shown herein, and the strategy has great potential for therapeutic applications. We show the ...
-
(MDPI, 2020)Vaccine-induced protection against pathogens, especially subunit-based vaccines, are related to antigen properties but mainly in their ability to stimulate the immune system by the use of an adjuvant. Modern vaccines are ...
-
(2000)We report measurements of the resistivity (Formula presented) of a gold film 70 nm thick deposited on mica preheated to 300 °C in UHV, performed between 4 and 300 K, and measurements of the surface topography of the same ...
-
(2005)Surface-enhanced micro-Raman spectroscopy (micro-SERS) was used to detect traces of the hazardous pollutant polycyclic aromatic hydrocarbons (PAHs) pyrene and benzo[c]phenanthrene deposited onto a calix[4]arene-functionalized ...
-
(Taylor and Francis Inc., 2016)A modification to the traditional synthesis of reduced silver metal nanoparticles with hydroxylamine hydrochloride is proposed. The new colloid, obtained by decreasing the concentration of hydroxide and chloride ions, is ...