Results 41 to 50 of about 1,361,762 (335)
Materials, 2016 A novel nano-hybrid was synthesized through immobilization of amine-functionalized silica gel nanoparticles with nanomagnetite via a co-precipitation technique. The parameters, such as reagent concentrations, reaction temperature and time, were optimized
M. Elkady, H. S. Hassan, A. Hashim
semanticscholar +1 more source
FEBS Letters, EarlyView.Atovaquone is an antimalarial requiring potentiation for sufficient efficacy. We pursued strategies to enhance its activity, showing that 4‐nitrobenzoate inhibits 4‐hydroxybenzoate polyprenyltransferase, decreasing ubiquinone biosynthesis. Since atovaquone competes with ubiquinol in mitochondria, 4‐nitrobenzoate facilitates its action, potentiating ...
Ignasi Bofill Verdaguer +7 more
wiley +1 more source
FEBS Open Bio, EarlyView.Sphingoid base structures, the sphingolipid backbones, vary among species. We established yeast cells in which the native sphingoid base was replaced with plant‐type bases containing cis or trans double bonds. This is, to our knowledge, the first eukaryotic model mostly composed of sphingolipids containing cis‐unsaturated sphingoid base, providing a ...
Takashi Higuchi +5 more
wiley +1 more source
Pengaruh Keasaman Medium dan Imobilisasi Gugus Organik pada Karakter Silika Gel dari Abu Sekam Padi
Jurnal Kimia Sains dan Aplikasi, 2005 Silica gel is well known as a material that may be used as adsorbent, host matrix for catalyst, etc. Hence, synthesis of silica gel from rice hull ash has been done by evaluation of the effect of medium acidity and organic group immobilized in the ...
Sriyanti Sriyanti +3 more
doaj +1 more source
Study of the conditions of the ruthenium tetraoxide-promoted oxidative cleavage reaction of bicyclic β-hydroxy ethers [PDF]
, 2010 A systematic study of the reaction of β-hydroxy ethers with ruthenium tetraoxide (RuO4), generated in situ from ruthenium trichloride and sodium periodate, is presented, leading to nine-membered ring keto-lactones in moderate yields. Three different
FERRAZ, Helena M. C. +3 more
core +2 more sources
FEBS Open Bio, EarlyView.Here, we introduced an intermittent electrical stimulation protocol mimicking the episodic nature of real‐life exercise in vitro by alternating low‐ and high‐frequency stimulation. In comparison with widely used continuous stimulation, it enhanced the rate of glucose and fatty acid oxidation, but not the myokine release.
Klára Gabrišová +11 more
wiley +1 more source
Surface Modification of Silica Gel by Interfacial Polyelectrolyte Complexes
Adsorption Science & Technology, 1999 Two types of modified silica gel have been prepared by constructing layers of a thermolabile interfacial polyelectrolyte complex on the surface of silica gel using diazo resin (DR) as the polycation and poly(sodium styrene sulphonate) (PSS) as the ...
Yongjun Zhang, Weixiao Cao
doaj +1 more source
Journal of Analytical Science and Technology, 2017 Background Organic dyes are used for a wide variety of purposes including their applications in textiles, foods, printing cosmetics and pharmaceuticals.
Ali Mohammad +3 more
doaj +1 more source
Coleta de folhas do cafeeiro e extração de DNA genômico de alta qualidade. [PDF]
, 2011 Para a amplificação do DNA in vitro, é necessário que o DNA genômico seja de boa qualidade. É comum que seja realizada a coleta do tecido vegetal em local distante de onde será feita a extração e análises do DNA e muitas vezes, o armazenamento inadequado
CARVALHO, B. L. +5 more
core
, 2016 This study set out to investigate the effect of gel migration through micro-pores and cracks on concrete expansion caused by alkali–silica reaction (ASR).
Yuya Takahashi +3 more
semanticscholar +1 more source