the proposed algorithm suggests a new method for determination of k/s value of primaries based on linear least squares technique. by applying the matrix pseudoinverse, a modification is introduced to eliminate the limitation on the numbers of applied dyes in one – constant kubelka-munk theory. the selection of dyes for tristimulus matching are also done on the basis of the initial spectrophotom...

As part of a continuing research program aimed at plausible approaches to synthetic dyes based on toxicological considerations, a group of premetallized iron complexed monoazo dyes were synthesized as potential alternatives to presently used high volume Crand Cocontaining monoazo acid dyes for nylon and wool. This approach takes advantage of the environmentally friendly property of Fe, and draw...

As a routine internal calibration system, the use of marker dyes is easier, faster, and more reliable for precisely locating steroids separated by column chromatography on Sephadex LH-20 than is the customary method, pre-calibration by radioactivity. Certain azobenzene and azotoluene dyes are suitable for signaling the effluent positions of various steroids of clinical interest. The elution beh...

This paper reports application of cetyltrimethylammonium bromide (CTAB) coated magnetite nanoparticles (Fe3O4 NPs) as a novel adsorbent for removal of two types of disperse dyes, including disperse red 167, and disperse blue 183, from wastewater of textile companies. The effect of parameters including type of surfactant, pH of solution, surfactant concentration, and amount...

Dissolution of azo dyes derived from N-carboxylic acid-1,8-naphthalimide was studied in aqueous solutions containing formaldehyde condensation of naphthalenesulphonic acid and fatty alcohol ethylene oxide compound surfactants and effect of additional hydroxyl group on chemical structure of dye on dissolution was investigated. In addition, the effect of important factors on dissolution of used d...

objective: synthetic fluorescent dyes that are conjugated to antibodies are useful tools to probe molecules. based on dye chemical structures, their photobleaching and photostability indices are quite diverse. it is generally believed that among different fluorescent dyes, alexa fluor family has greater photostability than traditional dyes like fluorescein isothiocyanate (fitc) and cy5. alexa f...

In an effort to bring out efficient thiocyanate-free dyes for dye sensitized solar cells (DSSC) we have designed, synthesized and characterized four novel cyclometalated ruthenium(II) dyes (M1 to M4) with superior photochemical properties. All dyes contain terpyridyl ligands (TPY) with carboxylic acids as anchoring groups and cyclometalated ligand (TPY-C) with substituents for fine tuning the e...

Herein, three environment-sensitive (solvatochromic) fluorescent dyes presenting a strong electron acceptor 3-methoxychromone unit and varied electron donor 2-aryl were developed. All three dyes showed remarkable polarity-dependent shifts of the emission maximum, which increase with extension of the dye conjugation. For the 3-methoxychromone bearing a 7-(diethylamino)-9,9-dimethylfluoren-2-yl d...

BACKGROUND Blue dyes used for lymphatic mapping in sentinel lymph node biopsy cause intraoperative anaphylactic reactions in up to 2.7% of patients. With increasing implementation of this technique, the incidence of anaphylaxis to these dyes can be expected to increase. In the literature, the chemically often unrelated and inconsistently designated dyes have been confused, adding to other incon...