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4,030 Newest Publications about the topic dyes

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Revisiting tetranitrophenolsulfonephthalein

12-May-2015 | Nikolay O. Mchedlov‐Petrossyan, Kateryna V. Roshchyna, Sergey V. Shekhovtsov, Sergey V. Eltsov, Oleksii S. Zozulia, ..., Coloration Technology, 2015

Among the vast series of phenolsulfonephthalein dyes, the nitro derivatives and especially 3,3′,5,5′‐tetranitrophenolsulfonephthalein (nitrophenol crimson) remain practically unexplored, whereas the halogen and alkyl derivatives have been studied comprehensively. This striking difference is ...

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Development of a Thermofluor assay for stability determination of membrane proteins using the Na+/H+ antiporter NhaA and cytochrome c oxidase

11-May-2015 | Martin Kohlstaedt, Iris von der Hocht, Florian Hilbers, Yvonne Thielmann, Hartmut Michel, Acta Crystallographica Section D, 2015

Crystallization of membrane proteins is very laborious and time‐consuming, yielding well diffracting crystals in only a minority of projects. Therefore, a rapid and easy method is required to optimize the conditions for initial crystallization trials. The Thermofluor assay has been developed as ...

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Electrochemical Modulation of the Fluorescence of Cyanine Dye Cy5

11-May-2015 | Min Zhang, Junguang Jiang, Mingjun Cai, Hongda Wang, Electroanalysis, 2015

Abstract Organic fluorescent dyes are widely used in single molecule localization microscopy, where their performances are determined by the photophysical properties. Herein, we utilized a sensitive method to modulate the fluorescence of organic dyes by external potentials using a combination ...

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Biodegradable antimicrobial films based on poly(lactic acid) matrices and active azo compounds

11-May-2015 | Simona Concilio, Pio Iannelli, Lucia Sessa, Rita Olivieri, Amalia Porta, Felice De Santis, Roberto Pantani, Stefano ..., Journal of Applied Polymer Science, 2015

ABSTRACT Using solvent casting and melt compounding methods, we realized antibacterial and antifungal poly(lactic acid)‐based films by introducing different percentages of antimicrobial azo dyes into polymer matrices. Concentration up to 0.01% (w/w) of azo compounds permitted the preparation ...

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New A‐D‐A Type Small Molecules Based on Boron Dipyrromethene for Solution‐processed Organic Solar Cells

08-May-2015 | Xiaobin Peng, Lianggang Xiao, Hongda Wang, Ke Gao, Lisheng Li, Chang Liu, Wai-Yeung Wong, Wai-Kwok Wong, Xunjin Zhu, Chemistry - An Asian Journal, 2015

Unique properties of boron dipyrromethene (BODIPY) dyes including facile synthesis, high absorption coefficients and delocalized molecular orbitals as well as excellent photochemical and thermal stability, make them promising for organic solar cells. Accordingly, three A‐D‐A structural SMs of ...

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Colorimetric and fastness studies and analysis by reversed‐phase high‐performance liquid chromatography with diode‐array detection of the dyeing of silk fabric with natural dye Helichrysum arenarium

08-May-2015 | Emine Torgan, Lale Meyanci Ozer, Recep Karadag, Coloration Technology, 2015

In this study, silk fabric samples were dyed by various procedures using Helichrysum arenarium extracts. Alum, ferrous sulfate, stanium chloride, calcium nitrate, and potassium bitartrate were used as mordants. Reversed‐phase high‐performance liquid chromatography with diode‐array detection was ...

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Ketocyanine dyes: impact of conjugation length on optical absorption and third-order polarizabilities

08-May-2015 | Kada Yesudas; Eluvathingal D. Jemmis; Kotamarthi Bhanuprakash, Physical Chemistry Chemical Physics, 2015

Broken symmetry and symmetry adapted cluster-configuration interaction techniques help to understand the structure–property relationships like impact of conjugation length on the electronic structure, small energy optical absorption and third-order polarizabilities in symmetric ketocyanine dyes. ...

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Highly Crystalline Ti-doped SnO2 Hollow Structured Photocatalyst with Enhanced Photocatalytic Activity for Degradation of Organic Dyes

08-May-2015 | Long-Wei Yin; Lei Ran, CrystEngComm, 2015

We develop a facile infiltration route to synthesize hollow structured SnO2 with an adjustable Ti doping content using SiO2 microspheres as hard templates via an improved Stober method. The microstructures of the as-prepared Ti-doped SnO2 samples were characterized by XRD, SEM, TEM, XPS, N2 ...

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Potassium induced stitching of a flexible tripodal ligand into a bi-metallic two-dimensional coordination polymer for photo-degradation of organic dyes

08-May-2015 | Vimal K. Bhardwaj, Dalton Transactions, 2015

A novel strategy for the stitching of a tripodal ligand into a bi-metallic two-dimensional (2D) coordination polymer has been reported. The reaction of 5-nitrosalicylaldehyde based ligand H3L with nickel acetate resulted in the metal functionalized 2D extended network via potassium induced ...

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Photoelectrocyclization as an Activation Mechanism for Organelle‐Specific Live‐Cell Imaging Probes

07-May-2015 | Mai N. Tran, David M. Chenoweth, Angewandte Chemie International Edition, 2015

Abstract Photoactivatable fluorophores are useful tools in live‐cell imaging owing to their potential for precise spatial and temporal control. In this report, a new photoactivatable organelle‐specific live‐cell imaging probe based on a 6π electrocyclization/oxidation mechanism is described. ...

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