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2,628 Newest Publications about the topic dyes

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Immobilization of laccase on itaconic acid grafted and Cu(II) ion chelated chitosan membrane for bioremediation of hazardous materials

06-Feb-2012 | Bayramoglu, Gulay; Gursel, Ihsan; Yilmaz, Meltem; Yakup Arica, Mehmet, Journal of Chemical Technology & Biotechnology, 2012

Abstract BACKGROUND: Chitosan membranes were formed through a phase inversion technique and then cross‐linked with epichlorohydrin (CHX). Heterogeneous graft copolymerization of itaconic acid (IA) onto membrane was carried out with different monomer concentrations (CHX‐g‐p(IA)). The membrane ...

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Organic Dye Design Tools for Efficient Photocurrent Generation in Dye‐Sensitized Solar Cells: Exciton Binding Energy and Electron Acceptors

06-Feb-2012 | Kim, Bong‐Gi; Zhen, Chang‐Gua; Jeong, Eun Jeong; Kieffer, John; Kim, Jinsang, Advanced Functional Materials, 2012

Abstract The relationship between the exciton binding energies of several pure organic dyes and their chemical structures is explored using density functional theory calculations in order to optimize the molecular design in terms of the light‐to‐electric energy‐conversion efficiency in ...

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Functionalized cyano-OPVs as melt-processable two-photon absorbers

06-Feb-2012 | Brian T. Makowski; Joseph Lott; Brent Valle; Kenneth D. Singer; Christoph Weder, Journal of Materials Chemistry, 2012

Several cyano-functionalized oligo(phenylenevinylene) (cyano-OPV) dyes were modified with different alkyl substituents with the objective to develop melt-processable, two-photon absorbing materials. The new dyes exhibit two-photon absorption cross-sections in the range of 400–850 GM, can be ...

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High‐performance liquid chromatography of some natural dyes: analysis of plant extracts and dyed textiles

05-Feb-2012 | Deveoğlu, Ozan; Torgan, Emine; Karadağ, Recep, Coloration Technology, 2012

In this study, wool fibre samples were mordanted by means of 25% alum mordant solution. The mordanted wool samples were dyed in 50%Reseda luteola L. (weld), 20%Rhamnus petiolaris Boiss (buckthorn) and 50%Datisca cannabina L. (bastard hemp) dyebaths. A reverse‐phase high‐performance liquid ...

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High‐performance liquid chromatography of some natural dyes: analysis of plant extracts and dyed textiles

05-Feb-2012 | Ozan Deveoğlu, Emine Torgan, Recep Karadağ, Coloration Technology, 2012

In this study, wool fibre samples were mordanted by means of 25% alum mordant solution. The mordanted wool samples were dyed in 50%Reseda luteola L. (weld), 20%Rhamnus petiolaris Boiss (buckthorn) and 50%Datisca cannabina L. (bastard hemp) dyebaths. A reverse‐phase high‐performance liquid ...

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Synthesis, characterization, and application of hetarylazo disperse colorants: Preparation and properties of ink‐jet inks with active agents for polyester printing

04-Feb-2012 | Karanikas, E. K.; Nikolaidis, N. F.; Tsatsaroni, E. G., Journal of Applied Polymer Science, 2012

Abstract The synthesis and characterization of two hetarylazo disperse colorants are described. These compounds were used for the preparation of ink‐jet inks with and without active agents for polyester printing. The viscosity, conductivity, surface tension, and pH of these inks were studied ...

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Synthesis, characterization, and application of hetarylazo disperse colorants: Preparation and properties of ink‐jet inks with active agents for polyester printing

04-Feb-2012 | Karanikas, E. K.; Nikolaidis, N. F.; Tsatsaroni, E. G., Journal of Applied Polymer Science, 2012

Abstract The synthesis and characterization of two hetarylazo disperse colorants are described. These compounds were used for the preparation of ink‐jet inks with and without active agents for polyester printing. The viscosity, conductivity, surface tension, and pH of these inks were studied ...

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Effect of α-Fe2O3addition on the morphological, optical and decolorization properties of ZnO nanostructures

04-Feb-2012 | Rasol Abdullah Mirzaie, Firouzeh Kamrani, Azam Anaraki Firooz, Abbas Ali Khodadadi, Materials Chemistry and Physics, 2012

Visible light sensitive photocatalysts of Fe2O3/ZnO nanocomposites were prepared by a simple solid-state reaction method, using zinc acetate, α-Fe2O3and sodium hydroxide at room temperature. The products were characterized by scanning electron microscopy, powder X-ray diffraction, ...

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Functional Silk: Colored and Luminescent

03-Feb-2012 | Tansil, Natalia C.; Koh, Leng Duei; Han, Ming‐Yong, Advanced Materials, 2012

Abstract Silkworm silk is among the most widely used natural fibers for textile and biomedical applications due to its extraordinary mechanical properties and superior biocompatibility. A number of physical and chemical processes have also been developed to reconstruct silk into various forms ...

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Adsorption complexes of acridine diaminoderivatives on silica surface

03-Feb-2012 | N. N. Vlasova, L. P. Golovkova, N. G. Stukalina, Colloid Journal, 2012

The adsorption of acridine diaminoderivatives on the surface of finely dispersed silica from aqueous solutions is studied in relation to pH, ionic strength, and adsorbate concentration. The stability constants of the surface complexes of acridine derivatives with unionized and dissociated silanol ...

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