نتایج جستجو برای: cationic dyes
تعداد نتایج: 38044 فیلتر نتایج به سال:
Heparins are are sulfated polysaccharides that have tremendous clinical importance as anticoagulant drugs. Monitoring of heparin blood levels can improve patient safety. In clinical practice, heparins are monitored indirectly by their inhibtory effect on coagulation proteases. Drawbacks of these established methods have stimulated the development of simple direct detection methods with cationic...
The separation of reactive, sulfur, and vat dyes from cotton dyeing effluent was investigated by a coagulation process using a cationic polymer electrolyte (PE). The coagulation of dyes was found to be considerably influenced by the amount of added PE and pH of the effluent. High degree of separation, (i.e.-90-99%) could be achieved for all the dyes. The secondary treatment of the PE treated (p...
P2X7 receptor has gained an increasing importance as a drug target. One important response to P2X7 receptor stimulation is the uptake of large molecular weight tracers into cells. However, mechanism for this response is not understood clearly, but it is generally believed that a nonselective large pore protein forms this P2X7 receptor-activated permeability pathway. We examined human embryonic ...
fertilizer plant waste carbon slurry has been investigated after some processing as an adsorbent for the removal of dyes and phenols using columns. the results show that the carbonaceous adsorbent prepared from carbon slurry being porous and having appreciable surface area (380 m2/g) can remove dyes both cationic (meldola blue, methylene blue, chrysoidine g, crystal violet) as well as anionic (...
The effect of acid treatment on the adsorptive capacity a Brazilian palygorskite to remove crystal violet (CV) and congo red (CR) dyes was investigated. raw acid-treated by different HCl solutions (2, 4, 6 mol/L). modifications structure were investigated using X-ray diffraction, fluorescence, Fourier-transform infrared spectroscopy, N2 adsorption/desorption, thermogravimetric differential ther...
Maxilon dyes are a class of cationic containing different aliphatic and aromatic radicals. Contamination water by this causes serious environmental concern to both man other animals plants. Adsorption as process has been studied various researchers for dye uptake. This work represents review published literature discussing the adsorption using adsorbents. operating parameters, kinetic isotherm ...
We report the synthesis of four new cationic dipolar push–pull dyes, together with an evaluation of their photophysical and photobiological characteristics pertinent to imaging membranes by fluorescence and second harmonic generation (SHG). All four dyes consist of an N,N-diethylaniline electron-donor conjugated to a pyridinium electron-acceptor via a thiophene bridge, with either vinylene (–CH...
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