Labeling of metastatic tumors can aid in their staging and resection of cancer. Near infrared (NIR) dyes have been used in the clinic for tumor labeling. However, there can be a nonspecific uptake of dye by the liver, lungs, and lymph nodes, which hinders detection of metastasis. In order to overcome these problems, we have used two NIR dyes (DyLight 650 and 750) conjugated to a chimeric anti-c...

The use of reactive dyes has increased rapidly due to outstanding properties, growing consumption of cellulosic fibers, and decrease in the production of other application classes of dyes for cellulosics because of cost and health hazards. However, reactive dyes cause the greatest effluent problems for the dye industry. This study explored reusing these dyes in which the residual dyeings were d...

This work reports the possibility of using sustainable waste from watermelon rinds as a potential candidate for removal Methylene Blue (MB) aqueous solution in batch mode. The adsorbent was characterized by FTIR and SEM where analysis shows peaks at 3370 cm-1 that corresponds to –OH stretching vibration lignin, pectin cellulose, 1728 –C=O esters, carboxylic acids, well peak range 1350 – 1000 wh...

objective: the aim of the present study was to evaluate the efficacy of two caries detector dyes in the diagnosis of dental caries. materials and methods: twenty extracted human posterior teeth without pulpal exposure were sectioned mesiodistally through the center of the lesions using a water-cooled disk. the tooth halves were randomly divided into two groups and treated with caries detector (...

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 of salt, was investig...

We report the synthesis of squaraine dyes under mild conditions by carbodiimide activation of squaric acid or semi-squaraine dyes. Despite low yields when the reaction was carried out in solution, these conditions were successfully applied to efficient peptide labelling on resin and nucleic acid sensing in solution.

Gold nanoparticles were modified with RNA and utilized to detect specific DNA sequences and various RNA nucleases.

background: the presence of even a very small quantity of dye in water bodies is undesirable and affects the water bodies. dye removal from industrial waste water is significant; hence in this study, a material that is an economical waste product was employed to test its acid dye removing capacity from aqueous solution. methods: in this study, batch mode experiments were performed in the sorpti...

hydrothermal synthesis of nickel-chitosan hybrid  has  been accomplished using ni(ch3coo)2,4h2o, chitosan and water as starting material, template and solvent respectively, followed by calcination at 800 and 900˚c to provide nanoporous nio800  and nio900. the solid products were characterized by x-ray diffraction (xrd), nitrogen adsorption-desorption, scanning electron microscopy (sem) and four...