Results 181 to 190 of about 37,125 (226)
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Chemosphere, 2011
The dye malachite green (MG) is used worldwide as a fungicide in aquaculture. It is a toxic substance which in aqueous solutions is partly converted into its non-ionic colorless form (leucocarbinol). The equilibrium between these two forms is pH-dependent (pK=6.9).
A R, Fischer, P, Werner, K-U, Goss
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The dye malachite green (MG) is used worldwide as a fungicide in aquaculture. It is a toxic substance which in aqueous solutions is partly converted into its non-ionic colorless form (leucocarbinol). The equilibrium between these two forms is pH-dependent (pK=6.9).
A R, Fischer, P, Werner, K-U, Goss
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Malachite green photosensitive plates
Applied Optics, 1989An experimental study of the behavior of malachite green sensitized plates was carried out. The transmittance variation of the irradiated plates was taken as a parameter. It has been observed that photoreduction in the malachite green plates is present only when ammonium dichromate is added to the plates.
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Malachite Green: Applications in Electron Microscopy
Stain Technology, 1978Incorporation of malachite green into a glutaraldehyde fixative results in enhanced staining of a number of cellular elements. Ribosomes and myofilaments exhibit increased electron density, but cell membranes generally are not stained. In certain tissues, lipid inclusions are uniformly and heavily stained.
R G, Pourcho, M H, Bernstein, S F, Gould
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Sorption of malachite green on chitosan bead
Journal of Hazardous Materials, 2008Chitosan bead was synthesized for the removal of a cationic dye malachite green (MG) from aqueous solution. The effects of temperature (303, 313 and 323 K), pH of the solution (2-11) on MG removal was investigated. Preliminary kinetic experiment was carried out up to 480 min. The sorption equilibrium was reached within 5 h (300 min).
Bekci, Zehra +3 more
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Reduction of malachite green to leucomalachite green by intestinal bacteria
Applied and Environmental Microbiology, 1997Intestinal microfloras from human, rat, mouse, and monkey fecal samples and 14 pure cultures of anaerobic bacteria representative of those found in the human gastrointestinal tract metabolized the triphenylmethane dye malachite green to leucomalachite green.
A L, Henderson +3 more
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Journal of Fish Diseases, 1985
Abstract. A detailed review of malachite green and its chemical and physical properties as they relate to fisheries interests. Many of the confusions and misconceptions about malachite green are discussed. Its mode of action, toxicity and fate are considered.
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Abstract. A detailed review of malachite green and its chemical and physical properties as they relate to fisheries interests. Many of the confusions and misconceptions about malachite green are discussed. Its mode of action, toxicity and fate are considered.
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Mutagenicity of malachite green and leucomalachite green inin vitro tests
Journal of Applied Toxicology, 1999The genotoxic potential of the fungicide malachite green (MG) and its reduced derivative leucomalachite green (LMG) was assessed in bacteria and mammalian cells using the standard Salmonella typhimurium/Ames and CHO/HGPRT tests. In vitro potential DNA damaging effects of MG and LMG were tested using the single-cell gel electrophoresis (Comet) assay on ...
V, Fessard +4 more
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Biotechnology and Bioengineering, 2006
AbstractWe have developed a novel mobile bioprobe using a conjugate of a kinesin‐driven microtubule (MT) and malachite green (MG) as a platform for capturing MG RNA aptamers. The fluorescence of MG increases when it is bound to an MG aptamer, allowing MT–MG conjugates to work as sensors of RNA transcripts containing the MG aptamer sequence.
Miki, Hirabayashi +9 more
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AbstractWe have developed a novel mobile bioprobe using a conjugate of a kinesin‐driven microtubule (MT) and malachite green (MG) as a platform for capturing MG RNA aptamers. The fluorescence of MG increases when it is bound to an MG aptamer, allowing MT–MG conjugates to work as sensors of RNA transcripts containing the MG aptamer sequence.
Miki, Hirabayashi +9 more
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Chemical Physics Letters, 1983
Abstract The appearance of malachite green dye absorption following photoionization of malachite green leucocyanide has been examined using picosecond flash photolysis. The rate of absorption increase depends upon solvent viscosity and exhibits a two-step behavior in viscous glycerol solutions.
David A. Cremers, Teresa L. Cremers
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Abstract The appearance of malachite green dye absorption following photoionization of malachite green leucocyanide has been examined using picosecond flash photolysis. The rate of absorption increase depends upon solvent viscosity and exhibits a two-step behavior in viscous glycerol solutions.
David A. Cremers, Teresa L. Cremers
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Toxicological studies on malachite green: A triphenylmethane dye
Archives of Toxicology, 1984The oral LD50 for malachite green oxalate was found to be 275 mg/kg in rats while the approximate lethal dose for NMRI mice was 50 mg/kg. No systemic effects were seen after dermal application of 2,000 mg/kg. Repeated administration in the diet for 28 days to rats produced only minor changes in serum urea and aspartate aminotransferase levels. The rats
S, Clemmensen +5 more
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