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Egyptian Journal of Aquatic Biology and Fisheries
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A. Mousa, M., El Nemr, A., A. Gomaa, E., M. Eldafrawy, S., T. Helmy, E. (2018). Mangrove Leaves Aqueous Extract Mediated Green Synthesis of TiO2 and Boron-doped TiO2 Nanoparticles and their Ecotoxic Effect on Rotifers. Egyptian Journal of Aquatic Biology and Fisheries, 22(2), 149-162. doi: 10.21608/ejabf.2018.8343
Mahmoud A. Mousa; Ahmed El Nemr; Esam A. Gomaa; Shady M. Eldafrawy; Elsayed T. Helmy. "Mangrove Leaves Aqueous Extract Mediated Green Synthesis of TiO2 and Boron-doped TiO2 Nanoparticles and their Ecotoxic Effect on Rotifers". Egyptian Journal of Aquatic Biology and Fisheries, 22, 2, 2018, 149-162. doi: 10.21608/ejabf.2018.8343
A. Mousa, M., El Nemr, A., A. Gomaa, E., M. Eldafrawy, S., T. Helmy, E. (2018). 'Mangrove Leaves Aqueous Extract Mediated Green Synthesis of TiO2 and Boron-doped TiO2 Nanoparticles and their Ecotoxic Effect on Rotifers', Egyptian Journal of Aquatic Biology and Fisheries, 22(2), pp. 149-162. doi: 10.21608/ejabf.2018.8343
A. Mousa, M., El Nemr, A., A. Gomaa, E., M. Eldafrawy, S., T. Helmy, E. Mangrove Leaves Aqueous Extract Mediated Green Synthesis of TiO2 and Boron-doped TiO2 Nanoparticles and their Ecotoxic Effect on Rotifers. Egyptian Journal of Aquatic Biology and Fisheries, 2018; 22(2): 149-162. doi: 10.21608/ejabf.2018.8343

Mangrove Leaves Aqueous Extract Mediated Green Synthesis of TiO2 and Boron-doped TiO2 Nanoparticles and their Ecotoxic Effect on Rotifers

Article 12, Volume 22, Issue 2, April 2018, Page 149-162  XML PDF (557.21 K)
Document Type: Original Article
DOI: 10.21608/ejabf.2018.8343
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Authors
Mahmoud A. Mousa; Ahmed El Nemrorcid ; Esam A. Gomaa; Shady M. Eldafrawy; Elsayed T. Helmy
Abstract
Nanotechnology evolution and the production of nano-medicine from various sources had proven to be of high value. Titania nanoparticles (NPs) are photoactive, potentially producing in vivo toxicity in the presence of light. The smaller the size of NPs is gaining importance in increasing research for the treatment of various diseases. In the present study, titania (TiO2) and boron doped titania (B-TiO2) NPs were synthesized using mangrove leaf aqueous extract and characterized using FTIR and XRD techniques. The toxic activity was evaluated on rotifers using different concentrations of suspended aqueous solution of pure and B-doped titania at various times (0.5, 1, 2, 4 and 24 h) at room temperature. The data show anatase structure with a diameter of 3 to 30 nm. The toxicity analysis revealed that the TiO2 of different concentrations used doesn't have any toxicity in presence and absence of light source except a decrease in rotifer movement at high concentration, but B-TiO2 show slow toxicity, which increases with increasing the concentration to attain a maximum value at high concentration at which 5% of rotifers died after 24 h and its immobilization reaches 23% in darkness. Overall, the best data are obtained in presence of visible light source.
Keywords
Nanoparticles; Synthesis; toxicity; Titanium dioxide; Mangrove leaves; Phytochemical screening; Rotifers
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