CNTs coated charcoal as a hybrid composite material: Adsorption of fluoxetine probed by zebrafish embryos and its potential for environmental remediation.

Autor: Sousa-Moura D; Universidade de Brasília, Instituto de Ciências Biológicas, Departamento de Genética & Morfologia, Brasília, DF, Brazil. Electronic address: diegosousa.12@gmail.com., Matsubara EY; Universidade de São Paulo, FFCLRP - Departamento de Química, Ribeirão Preto, SP, 14040901, Brazil. Electronic address: elainematsubara@yahoo.com., Machado Ferraz IB; Universidade de Brasília, Instituto de Ciências Biológicas, Departamento de Genética & Morfologia, Brasília, DF, Brazil., Oliveira R; Universidade de Brasília, Instituto de Ciências Biológicas, Departamento de Genética & Morfologia, Brasília, DF, Brazil., Szlachetka ĹO; Universidade de Brasília, Laboratório de Física Aplicada, Instituto de Física, Brasília, DF, Brazil., William da Silva S; Universidade de Brasília, Laboratório de Física Aplicada, Instituto de Física, Brasília, DF, Brazil., Camargo NS; Universidade de Brasília, Instituto de Ciências Biológicas, Departamento de Genética & Morfologia, Brasília, DF, Brazil., Rosolen JM; Universidade de São Paulo, FFCLRP - Departamento de Química, Ribeirão Preto, SP, 14040901, Brazil., Grisolia CK; Universidade de Brasília, Instituto de Ciências Biológicas, Departamento de Genética & Morfologia, Brasília, DF, Brazil., Oliveira da Rocha MC; Universidade de Brasília, Instituto de Ciências Biológicas, Departamento de Genética & Morfologia, Brasília, DF, Brazil.
Jazyk: angličtina
Zdroj: Chemosphere [Chemosphere] 2019 Sep; Vol. 230, pp. 369-376. Date of Electronic Publication: 2019 May 10.
DOI: 10.1016/j.chemosphere.2019.05.019
Abstrakt: Although traditional water treatment systems can remove various substances from wastewater, these conventional systems fail to remove many chemical molecules that pose potential ecological and health risks. Carbon nanotubes (CNTs) appear attractive to adsorption of many substances, but CNTs adsorbed with toxic substances becomes a nanocomposite still more toxic. Here, we employ zebrafish embryos as biosensor to examine how a hybrid micro/nanostructured carbonaceous material (HMNC) derived from a combination of activated carbon (AC) with hydrophilic carbon nanotubes (CNTs) can remediate wastewater contaminated with the pharmaceutical fluoxetine hydrochloride (FLX). AC and HMNC are practically non-toxic to zebrafish embryos (LC 50  > 1000 mg.L -1 ). HMNC addition to culture medium containing FLX significantly reduces sublethal effects and lethality. Interaction between FLX and HMNC involves chemical adsorption such that embryo co-exposure to HMNC adsorbed with FLX in the range of concentrations evaluated herein does not elicit any behavioral changes in zebrafish.
(Copyright © 2019 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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