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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Machado, N. M. Lopes, J. C. Saturnino, R. S. Fagan, E. B. Nepomuceno, J. C. |
| Description | Country affiliation: Brazil Author Affiliation: Machado NM ( Universidade Federal de Uberlândia, Instituto de Genética e Bioquímica, Bloco 2E, Campus Umuarama, Uberlândia, Minas Gerais, Brazil) |
| Abstract | Carbon nanotubes (CNTs) are formed by rolling up a single graphite sheet into a tube. Among the different types of CNTs, the multi-walled carbon nanotubes (MWCNTs) comprise a set of concentric nanotubes with perfect structures. Several uses for MWCNTs have been suggested to be included in biological applications such as manufacturing of biosensors, carriers of drugs. However, before these materials can be put on the market, it is necessary to know their genotoxic effects. Thus, this study aims to evaluate the mutagenicity of multi-walled carbon nanotubes (MWCNTs) functionalized in somatic cells of Drosophila melanogaster, using the somatic mutation and recombination test (SMART). This assay detects the loss of heterozygosity of marker genes expressed phenotypically on the wings of the fly. Larvae of three days were used, resulting from ST cross, with basal levels of the cytochrome P450 and larvae of high metabolic bioactivity capacity (HB cross). They were treated with different concentrations of MWCNTs functionalized. The MH descendants, analyzed in both ST and HB crosses, had no significant effects on the frequency of mutant. Based on the results and on the experimental conditions mentioned in this study, it was concluded that MWCNTs were not mutagenic in D. melanogaster. |
| File Format | HTM / HTML |
| ISSN | 02786915 |
| Volume Number | 62 |
| e-ISSN | 18736351 |
| Journal | Food and Chemical Toxicology |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2013-12-01 |
| Publisher Place | Great Britain (UK) |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Toxicology__semicolon__nutritional Discipline Sciences Drosophila Melanogaster Drug Effects Nanotubes, Carbon Toxicity Animals Dose-response Relationship, Drug Genetics Female Larva Male Mutagenicity Tests Methods Mutagens Mutation Recombination, Genetic Survival Rate Wing Cytology Journal Article Research Support, Non-u.s. Gov't |
| Content Type | Text |
| Resource Type | Article |
| Subject | Medicine Toxicology Food Science |
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