Citas bibligráficas
Vásquez, D., (2014). Efectos del fulereno C60 y cobre mediados por luz UV-VIS en Daphnia magna en condiciones de laboratorio [Tesis, Universidad Nacional Mayor de San Marcos]. https://hdl.handle.net/20.500.12672/3722
Vásquez, D., Efectos del fulereno C60 y cobre mediados por luz UV-VIS en Daphnia magna en condiciones de laboratorio [Tesis]. PE: Universidad Nacional Mayor de San Marcos; 2014. https://hdl.handle.net/20.500.12672/3722
@misc{renati/483691,
title = "Efectos del fulereno C60 y cobre mediados por luz UV-VIS en Daphnia magna en condiciones de laboratorio",
author = "Vásquez Aquino, Diana Emperatriz",
publisher = "Universidad Nacional Mayor de San Marcos",
year = "2014"
}
In recent years there has emerged a new technology in the nanometer range today called Nanotechnology. Since its discovery, production and use of nanomaterials has been increased rapidly. One is the Fullerene (C60), which is used in different fields of science and technology such as medicine, cosmetics, electricity, among others. This new industry generates waste production are destined for aquatic environments, just as the use of waste products containing nanomaterials as are some detergents, sunscreens, deodorants. As is well known aquatic environments are dynamic and shaped by multiple components. However, there have been sufficient assessments of the potential effects of exposure to this compound in the environment and therefore, in organisms, even more, its interaction with other pollutants of natural or artificial origin. This study was conducted in order to evaluate the influence of a nanocomposite called Fullerene (C60) on a water body called Daphnia magna, mediated by two other factors: a metal (copper) and the ultraviolet light in the laboratory. To do this, “daphnia” which were subsequently reproduced considering 16h light / 8h dark and feeding based on basic Nutrafiin (3g) supplemented with yeast (0.05g) was obtained. After the culture was subjected to youth organizations Daphnia magna, to different treatments for 48 h, after which the following were evaluated: 1) LD50 and EC50 in different concentrations of Fullerene (C60) and Copper; 2) The degree of oxidative stress generated by a concentration gradient of fullerene (C60) and Copper; 3) Assess their behavior considering the frequency of jumps per minute when exposed to different concentrations and under the influence of UV light (pre and post); and 4) Evaluate the production of melanin in response to exposure of fullerene C60 and copper at different concentrations and under the influence of UV light (pre and post). This allowed us to estimate the environmental risk of fullerene contaminants coupled with classics like a metal (copper) and UV light in order to propose possible mechanisms of action. The results show no statistically significant differences in antioxidant capacity between before and after treatment with UV -Vis light, however there are differences at the behavioral level (frequency hopping) and between the amount of melanin generated between both treatments considering fullerene C60 mixture and Copper, and pre and post exposure to UV radiation. Keywords: Fullerene (C60), Copper, antioxidant capacity, frequency jumps, Melanin.
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