نتایج جستجو برای: dye structure

تعداد نتایج: 1602271  

Journal: :Nucleic acids research 2002
Marilyn E Ferrari Denis Rusalov Joel Enas Carl J Wheeler

The large number of cytofectin and co-lipid combinations currently used for lipoplex-mediated gene delivery reflects the fact that the optimal cytofectin/co-lipid combination varies with the application. The effects of structural changes in both cytofectin and co-lipid were systematically examined to identify structure-activity relationships. Specifically, alkyl chain length, degree of unsatura...

Journal: :Physical chemistry chemical physics : PCCP 2011
Maria Hahlin Michael Odelius Martin Magnuson Erik M J Johansson Stefan Plogmaker Daniel P Hagberg Licheng Sun Hans Siegbahn Håkan Rensmo

The frontier electronic structures of a series of organic dye molecules containing a triphenylamine moiety, a thiophene moiety and a cyanoacrylic acid moiety have been investigated by photoelectron spectroscopy (PES), X-ray absorption spectroscopy (XAS), X-ray emission spectroscopy (XES) and resonant photoelectron spectroscopy (RPES). The experimental results were compared to electronic structu...

2010
S. A. Abo-Farha

Advanced oxidation processes (AOPs) have proved very effective in treatment of the various hazardous organic pollutants in water. The photocatalytic degradation of two azo dyes, monoazo dye Acid Orange 10 (AO10) and diazo dye Acid Red114(AR114) present in wastewater were studied. Homogeneous photocatalytic degradation of the two azo dyes with UV/H2O2 process was investigated. The rates of disap...

Journal: :Dyes and Pigments 2021

In this work, we examined the nature and pathways of electronic excitation relaxation at low temperature in cationic pentamethine pyrylocyanine dye, which ground state is characterized by symmetric non-symmetric localization charge on carbon chain between terminal groups. The such localizations close to polymethine polyene conformations, respectively. effect symmetry breaking during two-way tra...

Journal: :Optics and Spectroscopy 2022

The synthesis of ZnO-MgO nanocomposite via modified Pechini method was performed. crystalline structure and the morphology nanocrystals were studied by X-ray diffraction analysis scanning electron microscopy. study on kinetics diazo dye adsorption its photocatalytic decomposition surface It shown that rate process in aqueous solution is described a kinetic equation first order. application allo...

ژورنال: سلامت و محیط زیست 2013
زرین قلم مقدم, عبدالصمد, علی جانی, سمیه, واعظ, محمد,

Background and Objectives: The development a low-cost and high efficiency water treatment technology to decolorize the organic dye effluents is desirable due to overwhelming discharge of organic synthetic dyes into the natural water cycle during the dying process. In this study, the decolorization of Acid Black 26, as the model organic contaminant, was investigated using immobilized nano-sized ...

Background & Aim: Dyes are one of the most important pollutants in textile wastewater that are toxic, carcinogenic, teratogenic and non-biodegradable. Entering of dyes into water resources reducing the penetration of sunlight and eutrophication is occurred. Melia azedarach core and fruit is one of the inexpensive natural absorbent that has an important place in the treatment of textile wastewat...

Journal: :Chemical communications 2010
Sung Hoon Ahn Joo Hwan Koh Jin Ah Seo Jong Hak Kim

Randomly microphase-separated graft copolymers have been self-reorganized so as to exhibit a micellar structure with excellent connectivity upon tuning the solvent affinity. These copolymers are used as a structure-directing agent for organized mesoporous TiO(2) films with no grain boundaries, leading to enhanced solar conversion efficiency of dye-sensitized solar cells.

Journal: :Chemical communications 2010
Li Li Methira Krissanasaeranee Sebastian W Pattinson Morgan Stefik Ulrich Wiesner Ullrich Steiner Dominik Eder

We used polyisoprene-block-ethyleneoxide copolymers as structure-directing agents to synthesise well-ordered and highly-crystalline mesoporous WO(3) architectures that possess improved photocatalytic properties due to enhanced dye-adsorption in absence of diffusion limitation.

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - پژوهشکده فنی و مهندسی 1388

asymmetric polyethersulfone (pes) microfiltration flat sheet membranes were composed by the phase inversion method (pim) and were used as supports. composite membranes were fabricated by coating silicone rubber as selective layer. effect of different concentrations of pes and pdms and different solvent such as nmp, dmf and dms effects as pes solvents and support thickness and different coagulat...

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