Cyano-metal complexes uptake by Aspergillus niger |
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| Authors: | Newton CM Gomes Marianne M Figueira Elizabeth RS Camargos Leda CS Mendonça-Hagler João CT Dias Valter R Linardi |
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| Institution: | (1) Instituto de Microbiologia Prof. Paulo de Góes, Bloco I, CCS, Universidade Federal do Rio de Janeiro, Ilha do Fundão, Rio de Janeiro, 21941-590 RJ, Brazil;(2) Biotechnology Research Institute/NRC, Montreal, Canada;(3) Departamento de Morfologia, Brazil;(4) Departamento de Microbiologia, ICB, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brasil |
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| Abstract: | Aspergillus niger was grown in an industrial gold mining solution containing cyano-metal complexes. Gold, silver, copper, iron and zinc were accumulated, and the major mechanism of metal uptake involved metal precipitation on the cell surface. This could be achieved by the extensive application of instrumental analyses combined to the study of the chemical composition of the solutions, before and after contact with the fungus. |
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| Keywords: | Aspergillus niger bioaccumulation biosorption and cyano-metal complexes |
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