geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Lack of mutagenic activity in salmonella typhimurium of 4 optical brighteners


, : Lack of mutagenic activity in salmonella typhimurium of 4 optical brighteners. Mutation Research 40(2): 169-171

The results of the experiments reported demonstrate that 4 optical brighteners [widely used in a range of products, such as washing powders, textiles, papers and some medical preparations], disodium 4,4-bis[4-anilino-6-morpholino-1,3,5-triazin-2yl)-amino]stilbene-2,2'-disulfonate; sodium 2-(4-styryl-2-sulfophenyl]-2H-naphtho[1,2-d]triazole; disodium 4,4'-bis{[4-anilino-6-(N-methyl-N-2-hydroxyethyl)-amino-1,3,5,-triazin-2-yl]amino} stilbene-2,2'-disulfonate; and (disodium 4,4-bis(2-sulphostyryl)biphenyl are genetically inactive in S. typhimurium, even when provision is made for metabolic activation of the chemicals by mammalian liver.

US$29.90


Other references

Wang, B.; Cao, Z., 2013: How water molecules modulate the hydration of CO2 in water solution: insight from the cluster-continuum model calculations. The hydration of CO(2) in water solution was investigated by the cluster-continuum model calculations with n = 1-8 water molecules. For n = 1-4 water molecules, all the reactions follow a concerted pathway to the hydration product directly. For n...

Burton, NHK.; Holloway, SJ., 2006: The effects on waterbirds of dredging at the Cardiff Bay barrage report for 2005/06. BTO Research Report. March; 434: 1-27

Maninger, S.; Bosse, J.Bernhard.; Lemnitzer, F.; Pogoda, M.; Mohr, C.A.; von Einem, J.; Walther, P.; Koszinowski, U.H.; Ruzsics, Z., 2011: M94 is essential for the secondary envelopment of murine cytomegalovirus. The gene M94 of murine cytomegalovirus (MCMV) as well as its homologues UL16 in alphaherpesviruses is involved in viral morphogenesis. For a better understanding of its role in the viral life cycle, a library of random M94 mutants was generated by...

Allen, Ruth F., 1932: A cytological study of heterothallism in Puc-cinia coronata. This is a detailed and fully illustrated account of the author's study of heterothallism in Puccinia coronata a preliminary paper on certain parts of which has already been noticed . As the spermogonia develop, hyphae from them, or from the v...

Iftimia, N.V.; Hammer, D.X.; Ferguson, R.D.; Mujat, M.; Vu, D.; Ferrante, A.A., 2008: Dual-beam Fourier domain optical Doppler tomography of zebrafish. We have developed a dual-beam Fourier domain optical Doppler tomography (FD-ODT) system to image zebrafish (Danio rerio) larvae. Two beams incident on the zebrafish with a fixed angular separation allow absolute blood flow velocity measurement to...

Lerebours, R.; Wolf, C., 2007: Palladium(II)-catalyzed conjugate addition of arylsiloxanes in water. Palladium-phosphinous acids catalyze the conjugate addition of arylsiloxanes to a wide range of alpha,beta-unsaturated substrates in water. A microwave-assisted procedure is described that uses 5 mol % of POPd1 to afford beta-substituted ketones,...

Yabuki, S.; Kazahaya, Y.; Ikeda, K., 1983: Acute cerebellar ataxia associated with infectious mononucleosis--a case report and review of the literature. A 20-year-old man, a college student, was admitted to Kochi Municipal Central Hospital with a month's history of slurring of speech and unsteadiness of gait. He had developed fever, sore throat and cervical lymphadenopathy. On admission, the...

Urbach, F.; Bell, W.N.; Jacobson, C., 1955: Studies on urticaria pigmentosa. I. Release of a heparinoid material into the circulation following direct stimulation of urticaria pigmentosa lesions. Journal of Investigative Dermatology 25(4): 211-214

Lyons, A.; Ng, C.; Fielding, K.; Hosking, D.; Selby, C.; Lawson, N., 1997: Pituitary dysfunction in recently post-menopausal women. OBJECTIVE. Some recently post-menopausal women have lower than expected FSH concentrations, raising the possibility of subclinical hypothalamo-pituitary impairment. We have therefore performed pituitary stimulation tests in a group of recently pos...

Takekoshi, H., 1970: On the influence for the phase angle change of the toad bone by the angular velocity of the single half sine wave with the controlled phase. Shigaku 58(5): 710-726