Obtenção e caracterização de nanopartículas de quitosana associada a magnetita (CS@Fe3O4) com potencial aplicação para adsorção de tetraciclina
Chitosan (CS) is a copolymer derived from chitin, widely distributed in nature in the exoskeleton of crustaceans. This copolymer is of interest to many researches due to its wide availability, antimicrobial activity, biocompatibility, biodegradability and thermal stability. Considering the promising...
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| Formato: | bachelorThesis |
| Idioma: | pt_BR |
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Universidade Federal do Rio Grande do Norte
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| Endereço do item: | https://repositorio.ufrn.br/handle/123456789/53188 |
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| Resumo: | Chitosan (CS) is a copolymer derived from chitin, widely distributed in nature in the exoskeleton of crustaceans. This copolymer is of interest to many researches due to its wide availability, antimicrobial activity, biocompatibility, biodegradability and thermal stability. Considering the promising properties of the biopolymer, equilibrium studies were carried out in the present work in order to verify the capacity of the adsorption process of the drug, Tetracycline Hydrochloride, on chitosan nanoparticles with magnetite. Tetracycline belongs to the class of broad-spectrum antibiotics, widely used in animals and humans due to its low cost and its great therapeutic property, but due to its high consumption demand, the presence of drug residues in the environment has been worrying. , either by the pharmaceutical industry or incorrect disposal by the population that can contribute to forms of antimicrobial resistance. Thus, the study of the adsorption capacity of chitosan-based magnetite composite (CS@Fe3O4) was used with the aim of trying to reduce the amount of drug present in the environment, which has a great contribution to environmental pollution and contamination of wastewater. . The combination of the copolymer with the magnetic material proved to be very effective and promising, portrayed through the adsorption isotherm models applied in the experimental data. The CS@Fe3O4 composite was characterized by Fourier Transform Infrared Spectroscopy (FTIR), X-Ray Diffraction (XRD) and zeta potential analysis. Adsorption studies were followed by readings using a UV-Vis spectrophotometer at 358 nm. Tetracycline adsorption proved to be extremely efficient on chitosan-based magnetite nanoparticles, so that the isotherms obtained from the equilibrium studies were carried out at different temperatures. |
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