The deoxyribonucleic acid (DNA) sodium salt was reacted with hexadecyltrimethylammonium bromide (CTMA) to obtain DNA-CTMA organic-solvent soluble complex. The DNA-CTMA was then mixed with three organic dyes such as Nile Blue A (NB), Disperse Red 1 (DR1) and Disperse Orange 3 (DO3) resulting in colored membranes, that were characterized by UV-Vis, FTIR, X-ray, ionic conductivity and fluorescence...

BACKGROUND Disperse dyes are well-known contact sensitizers. However, they are not included in the majority of commercially available baseline patch test series. OBJECTIVES To investigate the outcome of patch testing with a textile dye mix (TDM) consisting of eight disperse dyes at dermatology clinics in various countries. PATIENTS/MATERIALS/METHODS Two thousand nine hundred and seven conse...

Series of novel dichromophoric cyanine dyes based on 2-aminobenzothiazoles and 3-amino-1,2,4 -triazole have been synthesized in high yields. All the dyes have been classified as disperse dyes. Besides their electronic spectroscopic properties, high dye-uptakes on polyester, excellent fastness properties, highly extinction coefficients, and broad solvatochromic effects have been observed in thes...

R. Tittler ([email protected]) and L. Fahrig, Geomatics and Landscape Ecology Research Laboratory, Ottawa-Carleton Inst. of Biology, Carleton Univ., Ottawa, ON, K1S 5B6, Canada. (Present address of R. T.: Centre d’étude de la forêt, Dépt des sciences biologiques, Univ. de Québec à Montréal, Montreal, QC, H3C 3P8, Canada.) M.-A. Villard, Chaire de recherche du Canada en conservation des paysage...

Accurate mass measurements are used to both confirm the presence of a compound and help identify unknowns. Furthermore, high-mass accuracy enables the user to generate very narrow extracted ion chromatograms, enabling excellent quantitation. This application note describes the use of the Agilent liquid chromatograph/ mass selective detector time-of-flight (LC/MSD TOF) instrument to identify and...

The feasibility of employing nanofiltration (NF) in the decolorization of ionic (direct blue 86) and nonionic (disperse blue 56) dye aqueous solutions was investigated. The effects of feed concentration (60- 180 mg/l), pressure (0.5- 1.1 MPa) and pH (6- 10) were studied. Experiments were performed in a laboratory- scale set up by using a TFC commercial spiral wound polyamide nanofilter. The res...