Pbtas
Mostrando 1-4 de 4 artigos, teses e dissertações.
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1. 2-fenilbenzotriazóis (PBTA): uma nova classe de contaminantes ambientais
This work is a literature review of PBTAs, the phenylbenzotriazoles generated from the reduction and chlorination of azo dyes. The PBTAs and the non- chlorinated PBTAs were isolated for the first time from river blue rayon organic extracts that showed high mutagenic activity in the Salmonella/microsome genotoxicity assay. To date, 8 PBTAs have been identifie
Química Nova. Publicado em: 2008
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2. Investigação de lesões em DNA induzidas por produtos de redução do corante C. I. Disperse Blue 291 / Investigation of DNA damage induced by products of the C.I. Disperse Blue 291 reduction 2007
CI Disperse Blue 291 (CI DB 291) é um corante dinitrobromoaminoazobenzeno com atividade mutagênica para S. typhimurium, aumentada na presença de nitrorredutase, o-acetiltransferase e enzimas microssomais (S9). Neste estudo foram isolados e caracterizados quatro produtos da redução de DB 291 com ditionito de sódio (in vitro), sendo denominados 2- fenilb
Publicado em: 2007
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3. Uso do Blue Rayon para extração/concentração de compostos policíclicos em amostras ambientais
This is a review about the use of Blue rayon in the extraction and concentration of environmental contaminants in the aquatic environment. Blue rayon is an adsorbent composed of fibers covalently linked with copper phthalocyanine trisulphonate that has the ability to selectively adsorb polycyclic compounds. Blue rayon can be used in situ, in columns or in fl
Química Nova. Publicado em: 2006-06
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4. Differential accumulation of transcripts for four tomato 1-aminocyclopropane-1-carboxylate synthase homologs under various conditions.
Degenerate oligonucleotide primers corresponding to conserved regions flanking the active-site domain of 1-aminocyclopropane-1-carboxylate (ACC) synthase (EC 4.4.1.14) were used for the polymerase chain reaction (PCR) to amplify DNA fragments from mRNA isolated from tomato fruit and tomato suspension cell culture. Antibodies raised against two conserved pept