This paper presents a study on the adsorption of basic dye, methylene blue, from an aqueous solution onto diatomaceous earth (diatomite). The effect of initial dye concentrations, adsorbent particle size and concentration, and agitation speed on adsorption was investigated. Adsorption isotherms obtained at different solutions temperatures revealed an irreversible adsorption with a capacity of 4...

An organic/inorganic hybrid compound consisting of methylene blue, a cationic surfactant and a reductant intercalated into saponite was found to serve as an oxygen indicator that changes color in the presence of oxygen. A mixture of a blue colored dye, methylene blue, a reductant in the form of ascorbic acid or reducing sugar, and cetyltrimethylammonium ion intercalated into synthetic saponite ...

We report the case of a 70-year-old female patient who developed corneal edema and iris discoloration following the inadvertent use of 1% methylene blue instead of 0.025% trypan blue to stain the anterior capsule during cataract phacoemulsification surgery. Copious irrigation was performed upon realization of incorrect dye use. Corneal edema and iris discoloration developed during the early pos...

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...

Original Article Aims & objectives :Carcinoma breast is the most common malignancy in females and is the leading cause of the death in their middle age. 1/3rd of patients present with locally advanced disease with distant metastasis at the time of their initial diagnosis. Sentinel lymph node (SLN) biopsy is a reliable and minimally invasive diagnostic method to determine the regional nodal stat...

Methylene blue (MB) is a typical cationic dye, causing significant color changes in water bodies even small dissolved amounts, as well affecting the survival of neighboring plants and...

Biological synthesis of zinc sulfide (ZnS) nanoparticles (NPs) was prepared by a simple co-precipitation method using methanol plant extracts of Tridax procumbens, Phyllanthusniruri, and Syzygium aromaticum. The as-prepared ZnS NPs was examined by several physiochemical techniques such as X-Ray Powder Diffraction (XRD), Scanning Electron Microscopy (SEM), UV-Visible spectroscopy, Fourier Transf...

Success in endodontics depends largely on the activity of the irrigation solutions used during canal cleaning and shaping. Sometimes the irrigation solutions should act deep within the dentin, particularly in cases of chronic infectious lesions, in which it has been found that germs can lodge in the depths of the dentinal tubules. The aim of this study was to compare the penetration of methylen...