• Pará chestnut husk ( Bertholletia excelsa ) (PCH), an agro-industrial waste largely generated in Brazil, was employed as a low-cost and efficient biosorbent to remove the cationic dyes Crystal Violet (CV) and Methylene Blue (MB) from aqueous media. (iwaponline.com)
  • Methylene blue (MB) in turn, is another cationic dye used for dyeing cotton, paper, wool and silk. (iwaponline.com)
  • Agents that have been studied include methylene blue, toluidine blue, acetic acid, and indigo carmine. (verifiedmarketresearch.com)
  • Less often, the doctor might wipe the vulva with a dye (called toluidine blue) to find areas of abnormal vulvar skin to biopsy. (cancer.org)
  • The chemical properties of the toluidines are quite similar to those of aniline, and toluidines have properties in common with other aromatic amines. (wikipedia.org)
  • Request for assistance in preventing bladder cancer from exposure to o-toluidine and aniline. (cdc.gov)
  • NIOSH has warned that workers exposed to o-toluidine (95534) or aniline (62533) may be at increase risk for developing bladder cancer. (cdc.gov)
  • Studies on the carcinogenic effects of o-toluidine and aniline in humans and animals were reviewed, and information was presented on the number of workers potentially exposed, and on exposure limits. (cdc.gov)
  • Epidemiological evidence clearly associated exposure to o-toluidine and aniline with an increased risk of bladder cancer. (cdc.gov)
  • Effects of o-toluidine and aniline could not be separated in epidemiological studies. (cdc.gov)
  • Because o-toluidine induced a greater number and variety of tumors in animals at lower doses than aniline, it was more likely to be responsible for the observed bladder cancers. (cdc.gov)
  • and aniline oil for safranine , which contains aniline and ortho- toluidine , and is obtained from the distillate (échappés) of the fuchsine fusion. (wikidoc.org)
  • Our company offers high-quality Pigment Dyes such as Meta Nitro Para Toluidine, Fast Scarlet R Base, Fast Bordeaux GP Base Dye, etc. (absaromatics.com)
  • IPC Blue is a proprietary formula of Toluidine Blue dye in formalin, which turns small specimens a dark blue so they are easy to see when using white sponges, BioSavers or other biopsy bags. (seedsit.com)
  • DNase Test Agar, DNase Test Agar with Methyl Green and DNase Test Agar with Toluidine Blue are differential media used for the detection of deoxyribonuclease activity to aid in the identification of bacteria isolated from clinical specimens. (slideserve.com)
  • DNase Test Agar with Toluidine Blue contains a metachromatic dyeto eliminate the necessity of reagent addition to the agar following incubation. (slideserve.com)
  • The HCl reagent is not needed to detect DNase activity on DNase Agar with Toluidine Blue. (slideserve.com)
  • Toluidine blue forms a complex with intact (polymerized) DNA. (slideserve.com)
  • In the intact DNA complex, the toluidine blue has the normal blue color. (slideserve.com)
  • This dye causes skin with certain diseases -- including VIN and vulvar cancer -- to turn blue. (cancer.org)
  • Among the most lasting dyes in nature are the red and blue dyes such as those found in alizarin and indigo. (wikisummaries.org)
  • Cells were fixed in 4% paraformaldehyde and then stained with toluidine blue dye. (woofahs.com)
  • A microscope and/or toluidine blue dye may be required, depending on jurisdictional policy. (safeta.org)
  • Toluidin blue works better at pH 11 that you can reach with borax before dissolving the dye in it. (utsouthwestern.edu)
  • wrote: Hi all, My pathologist would like to do a combined toluidine blue and H&E. Has anyone ever done this? (utsouthwestern.edu)
  • I am guessing that I would have to use the toluidine blue after the eosin then air dry the slides since alcohol would take the blue out, but I am not sure if it would react with either the hematoxylin or the eosin. (utsouthwestern.edu)
  • In these cases, toluidine blue dye can be applied to delineate the area of involvement more clearly. (medscape.com)
  • Toluidine blue stains the nucleus of cells in an area of ulceration but not in areas of intact normal mucosa. (medscape.com)
  • Subtle lesions may be delineated by staining the vulva with toluidine blue or by using colposcopy. (msdmanuals.com)
  • One modern textbook of dye chemistry asserts that "the fastness properties of vat dyes are surpassed by no other class of dyestuffs. (wikisummaries.org)
  • Due to the amino group bonded to the aromatic ring, the toluidines are weakly basic. (wikipedia.org)
  • o-Toluidine is a colorless to pale yellow liquid with a weak, pleasant, aromatic odor. (mainchem.com)
  • An additional source azo dyes that are used in commercial aromatic amines, in tobacco smoke. (who.int)
  • For both dyes, the biosorption capacity was favored under acid conditions. (iwaponline.com)
  • Offered acid is mainly used as dye intermediate in textile and various allied industries. (madhavchemicals.com)
  • It is a diazo component which is used in preparation of various heterocyclic disperse dyes. (shubhamspecialty.com)
  • 2-naphthylamine is also a chemical compound that had uses in dyeing, but today it is replaced with other less toxic substances. (mysite2.com)
  • Dyes can be classified as anionic, cationic or non-ionic ( Gupta & Suhas 2009 ). (iwaponline.com)
  • In the Belgian patent 543 216 anthraquinone dyes are described which, in the form of their free acids, have the following formula in which X is a group containing at least one anionic solubilizing group. (google.com)
  • The dye is not specific for malignant cells, but it stains areas of ulceration with increased cell turnover or with aberrant cells. (medscape.com)
  • This difference is related to the fact that the p-toluidine molecules are more symmetrical. (wikipedia.org)
  • The cytotoxicity of different representative molecules, namely small organic molecules, proteins and nanoparticles (NP), was measured after 24 h of exposure using the fluorescent dye pair Hoechst 33342 and SYTOX orange. (nature.com)
  • Vat dyes are designed to solve this concern with molecules that can be made water-soluble, but only during the dyeing or vatting process. (wikisummaries.org)
  • The toluidines are poorly soluble in pure water but dissolve well in acidic water due to formation of ammonium salts, as usual for organic amines. (wikipedia.org)
  • Used in the variety of applications, these Metal dyes are strongly acidic and can form strong co-ordination complexes with change of state metal ions like Chromium, Cobalt, Nickel, Copper etc. (technocolordyes.com)
  • There are three isomers of toluidine, which are organic compounds. (wikipedia.org)
  • Using Pocillopora damicornis as a model, we characterized the autofluorescence and tested different fluorescent dye pair combinations to identify alternative viability indicators. (nature.com)
  • Our results show that this dye pair can be distinctly measured in the presence of fluorescent proteins plus chlorophyll. (nature.com)
  • Fluorescent indicator dyes (fluorophores) are most commonly used in biochemical and cell-based assays in vertebrate cell culture since fluorescence is more sensitive 3 and fluorescence is utilized in many instruments (microscopy, spectroscopy, flow cytometry). (nature.com)
  • The excellent water-fastness of vat dyes is complemented by the fact that many of them have a very simple chemical structure, which results in great chemical stability and particularly in light-fastness. (wikisummaries.org)
  • These Pigment Dyes are provided with excellent tinting strength, light fastness and color fastness features. (absaromatics.com)
  • Contact us for o-Toluidine MSDS -Material Safety Data Sheet and o-Toluidine CAS 95-53-4 COA-Certificate of Analysis, Product Data Sheet - in PDF Document. (mainchem.com)
  • Chromoendoscopy is a technique in which different colored dyes are sprayed over the mucosa to highlight mucosal details. (verifiedmarketresearch.com)
  • The development of modern chemistry and that of dye chemistry are closely linked. (wikisummaries.org)
  • One fundamental problem in dyeing relates to the extent to which the dye is water-soluble. (wikisummaries.org)
  • Process for the preparation of anthraquinone dyes The invention relates to the production of anthraquinone dyes, in particular the Production of such anthraquinone dyes which have very good solubility and are valuable for producing true colorations on cellulosic fabrics. (google.com)
  • ortho- and meta-toluidines are viscous liquids, but para-toluidine is a flaky solid. (wikipedia.org)
  • trinitrotoluene (TNT), dyes, and DNT in the Environment polyurethane foams. (cdc.gov)
  • These dyes show good build-up on all metals and modify them by giving extremist shine and smooth finish. (technocolordyes.com)
  • Since CV and MB are widely used and can cause environmental problems, these dyes should be carefully removed from aqueous effluents. (iwaponline.com)
  • Lizier and of cancer of the urinary bladder in city of these dyes in humans ( IARC, Boldrin Zanoni, 2012 ). (who.int)
  • In this way, PCH can be considered as an option for treating colored effluents containing textile dyes. (iwaponline.com)
  • The purpose of chromoendoscopy is to enhance the characteristics of tissues, although dye may be used for other functional purposes. (verifiedmarketresearch.com)
  • Show great level dyeing and penetration characteristics. (technocolordyes.com)
  • p-Toluidine reacts with formaldehyde to form Tröger's base. (wikipedia.org)
  • Avail the range of high grade Metal Dyes with medium-to-good migration and leveling properties. (technocolordyes.com)
  • The other toluidine isomers are used in the production of dyes. (wikipedia.org)
  • O-toluidine is/was used for coloring hair and it also has applications in the dye industry. (mysite2.com)
  • One of many possible critical turning points in this research was the introduction of the first vat dye by a chemist at the German firm Badische Anilin- und Soda-Fabrik Badische Anilin- und Soda-Fabrik[Badische Anilin und Soda Fabrik] (BASF) in 1901. (wikisummaries.org)
  • Dittmann F., Steiner J., Intercellular connection between the lyrate organ and the growing oocyte in Varroa jacobsoni as revealed by Lucifer Yellow dye-coupling, J. Apic. (apidologie.org)
  • The most common way to measure these endpoints is by using colorimetric or fluorometric assays which involve the addition of an indicator dye. (nature.com)
  • In some patients o-toluidine is a metabolite of prilocaine, which may cause methemoglobinemia. (wikipedia.org)
  • Photodynamic therapy (PDT) assumes that the interaction of light with an appropriate wavelength, when associated with a nontoxic photosensitizing dye in the presence of oxygen, results in free radicals of high cytotoxicity, such as superoxides and singlet oxygen. (bvsalud.org)
  • In the presence of nucleotides produced from the DNasedepolymerization, the dye takes on its metachromatic color, forming pink to red zones around bacterial growth. (slideserve.com)
  • The eye-popping color-shades of the product range have sharp effects and can be thinned, tinted and combined with the white dyes. (technocolordyes.com)