Methylene blue sensitized oxidation of ethylene thiourea in cationic micellar medium
نویسندگان
چکیده
منابع مشابه
Methylene-blue-sensitized gelatin holograms.
Like dichromated gelatin ~DCG!, methylene-bluesensitized gelatin ~MBG! is also a potential holographic recording material1,2 and can be used in forming a hologram with a high diffraction efficiency ~DE! and high signal-to-noise ratio ~SNR!. The addition of methylene blue ~MB! into a gelatin or DCG film renders it effective to record holograms with red light from an inexpensive He–Ne laser, whic...
متن کاملSpectrophotometric determination of arsenic via arsine generation and in-situ colour bleaching of methylene blue (MB) in micellar medium.
A new spectrophotometric method has been developed to determine arsenic in parts-per-million (ppm) level. It is based on the colour bleaching of methylene blue (MB) in anionic micellar medium. Arsine gas was formed by borohydride reduction of arsenite/arsenate. Arsine generation and colour bleaching (quantification of arsenic) could be done in one-pot. The presence of silver or gold nanoparticl...
متن کاملEffect of activation factors on adsorption of cationic dye, methylene blue, by activated bentonite
The aim of this investigation was to study the relationship between activation factors and adsorption of cationic dye, methylene blue MB, by activated bentonite. The adsorption index was investigated as a function of acid type, time and temperature. A commercial bentonite was selected as a starting material and the effect of heat treatment on MB adsorption were determined in a batch setup. Thou...
متن کاملMesoporous WO3/TiO2 Nanocomposites Photocatalyst for Rapid Degradation of Methylene Blue in Aqueous Medium
This paper presents the wet chemical synthesis of WO3/TiO2 nanocomposites using hydrothermally prepared monoclinic WO3 and anatase TiO2 nanoparticles as composite matrices and filler, respectively. The nanocomposites were prepared in different compositions, i.e. WO3:TiO2 ratio (w/w) of (1:1), (1:3), and (3:1). Physicoche...
متن کاملMethylene Blue Inhibits Caspases by Oxidation of the Catalytic Cysteine
Methylene blue, currently in phase 3 clinical trials against Alzheimer Disease, disaggregates the Tau protein of neurofibrillary tangles by oxidizing specific cysteine residues. Here, we investigated if methylene blue can inhibit caspases via the oxidation of their active site cysteine. Methylene blue, and derivatives, azure A and azure B competitively inhibited recombinant Caspase-6 (Casp6), a...
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ژورنال
عنوان ژورنال: Arabian Journal of Chemistry
سال: 2016
ISSN: 1878-5352
DOI: 10.1016/j.arabjc.2011.06.012