The introduction of sentinel lymph node (SLN) biopsy has brought an innovative approach to the staging of early breast cancer. Up to date two methods have been described: a blue dye-guided lymphatic mapping procedure and a radioactivity guided SLN biopsy technique using a handheld gamma probe. Aim of this study was to test the sentinel lymph node concept which states the histopathological analy...

Trypan blue injected intravenously is bound almost at once by the intercellular connective tissue elements all over the body,-by collagen, reticulin, and elastic fibers. This union of dye and tissue elements is the factor responsible for the early macroscopic blue color and is antecedent to cellular colloidopexic action. Different examples of connective tissue differ among themselves in their a...

The phosphomolybdic acid (PMA) has been used as an adsorbent for the removal of dyes (Methylene blue and Congo red dye) from synthetic aqueous solution. Different factors of the adsorbent, like, contact time, pH of the sorption medium, concentration of the dye solution, were investigated by the batch sorption experiment. The adsorption equilibrium data was best fitted by the Langmuir isotherm m...

Denim jeans, dyed with natural or synthetic indigo, are the most popular garments worn by individuals of all ages and approximately one billion pairs of jeans are produced per annum. Traditionally, denim has been woven with cotton in a warp face twill weave, in which the warp is blue whereas the weft is white. Dyeing is usually performed with pure indigo, or indigo combined with a sulfur dye to...

BACKGROUND The benefits of sentinel lymph node biopsy (SLNB) for breast cancer patients with histologically negative axillary nodes, in whom axillary lymph node dissection (ALND) is thereby avoided, are now established. Low false negative rate, certainly with blue dye technique, mostly reflects the established high inherent accuracy of SLNB and low axillary nodal metastatic load (subject to pat...

The purpose of the present study was to find out if the differences in disappearance rates of T-1824, trypan blue, niagara sky blue and niagara sky blue 6B depend upon the binding of these dyes by the plasma proteins (Gregersen and Rawson, 1943). The affinity of the various dyes for the plasma proteins was investigated: 1, with the electrophoresis method of Tiselius (1937) ; 2, by the ultracent...

Methylene blue (MB), an efficient singlet oxygen generating photoactive dye, binds to DNA and allows photosensitized reactions to be used for sequence-specific cleavage of the DNA backbone. Intercalation and groove binding are possible binding modes of the dye, depending on base sequences and environmental conditions. In a recent modeling study of methylene blue binding to a double stranded DNA...

BACKGROUND To evaluate the efficacy of trypan blue (0.06%) in posterior capsulorhexis with optic capture in pediatric cataracts. METHODS In this prospective randomized controlled study, trypan blue dye assisted posterior capsulorhexis with optic capture was performed in 18 eyes (group 1) and no dye was used for posterior capsulorhexis (group 2) in 17 eyes. RESULTS The mean size of the poste...

Materials and methods: Access cavities were prepared in 72 intact extracted premolar teeth. The samples were divided into three groups (n = 24) and filled with Coltosol, Compoglass, or Zonalin. After thermal cycling for 500 cycles (5–55°C), the teeth were immersed in 1% methylene blue dye at 37°C for 1 week (n = 8), 1 month (n = 8), and 2 months (n = 8). The samples were sectioned buccolinguall...

.. n.ofrlhut·lon or neutrophlls to the action or endotoxin on in the airways or anaesthetized guinea-pigs was -•••cu•·•n~ the extra"Yasatlon or E"Yans blue dye. Endotoxin •llhrrflfdtsJ caused a dose-dependent Increase ln mlcro"Yascular blue dye which was maximal arter 2S mln (p<O.OS). The Correspondence: Or T.W. Evans, Dept of Thoracic Medicine, National Heart and Lung Institute, Dovehouse Stre...