In order to find a more satisfactory interpretation of the phenomenon of photosensitized inactivation of bacteria, studies were performed under various experimental conditions on methylene blue and E. coli. In summary the findings are as follow:- 1. The dye is absorbed by the bacteria according to the Langmuir isotherm and can be removed by ionic substitutions; the dye binding to the bacteria i...

In this study, we used advanced oxidation process (AOP)for the removal of a cationic and anionic blue dyes, namely Basic Blue 3 (BB3) and Acid blue 62(AB62), from aqueous solutions. Fenton reactions are mixture of H2 O2 and Fe2+. However this paper investigates the application of twelve different catalysts such as: FeCl2 , FeSO4, (NH4 )Fe(SO4 )2 , FeCl3 , Nano iron (Fe0 ), Fe(NO3 )3 , K2FeO4 , ...

The use of isotopes has proved to be an important tool in the study of the metlabolism of body constituents (1). The employment of such tracer substan,ces has developed an awareness for easily identifiable substances which can be combined with a particular body constituent, in order to tag it for study purposes. It is understandable, therefore, that the announcement by Rawson(2) that Evans blue...

OBJECTIVE To test the feasibility of using a newly developed device for laparoscopic lymphatic mapping of the colon by simultaneous and quantitative detection of both tissue coloration and radioactivity. METHODS Four pigs were used in this study. In each animal, both blue dye and radioisotope injections were utilized. Lymphatic mapping was performed laparoscopically in the sigmoid mesocolon a...

INTRODUCTION Indocyanine green (ICG)-(99m)Tc-nanocolloid is a novel hybrid fluorescent radioactive tracer for sentinel node (SN) biopsy. This study has aimed to evaluate the added value of this novel versatile tracer in a series of patients with different malignancies. MATERIAL AND METHODS Twenty patients (with penile carcinoma, oral cavity tumors, melanoma) were consecutively included betwee...

The application of the "critical electrolyte concentration" concept to the differentiation of acidic glycosaminoglycans (mucopolysaccharides) is described. Alcian blue 8 GX stains with increasing selectivity as increasing amounts of magnesium chloride are incorporated into the dye solution. Experiments showed that binding of dye to carboxylate or phosphate groups ceased at low electrolyte conce...

BACKGROUND Lymphazurin 1% blue dye can cause a severe anaphylactic reaction in approximately 1-3% of patients. CASE PRESENTATION We describe a case of intraoperative anaphylaxis resulting from Lymphazurin 1% blue dye. A 48-year old woman undergoing a mastectomy with sentinel lymph node biopsy experienced a biphasic anaphylactic reaction with two episodes of hypotension at 15 minutes and 2 hou...

The purpose of this study was to investigate the effect of the reactive dye structure and type of penetrant in ink formulation on paper ink-jet printing. Different type of papers, which have same grammage was printed upon with three commercial reactive dyes, CI Reactive Blue 49 Ink 1, 4, CI Reactive Blue 21 Ink 2, Ink 5 and CI Reactive Blue 19 Ink 3, Ink 6, which are based on different reactive...