| Autor: |
Lima, Ana Kamila Medeiros1 (AUTHOR), Carvalho, Alexya Vitória Felix1 (AUTHOR), de Paiva Pinheiro, Sergimar Kennedy1 (AUTHOR), Torres, Yan2 (AUTHOR), Miguel, Thaiz Batista Azevedo Rangel3 (AUTHOR), Pireda, Saulo Fernandes4 (AUTHOR), Fechine, Pierre Basílio Almeida5 (AUTHOR), Fregolente, Laís Gomes6 (AUTHOR), de Castro Miguel, Emilio1 (AUTHOR) emiliomiguel@ufc.br |
| Zdroj: |
Bulletin of Environmental Contamination & Toxicology. Jun2023, Vol. 110 Issue 6, p1-9. 9p. |
| Abstrakt: |
The particle size reduction technology is used in several segments, including sunscreens and new techniques and product improvement. One of the main particles used in the sunscreens formulation is titanium dioxide (TiO2). This formulation allows for better characteristics of these products. Perspectives like incorporation of the particles by other biological systems beyond humans and their effects should be observed. This work aimed to evaluate the titanium dioxide microparticles phytotoxicity on Lactuca sativa L. plants through tests of germination, growth, and weight analysis using microscopy techniques: optical microscopy (OM) and scanning electron microscopy (SEM). Some of the results showed cellular and morphological damage, mainly in the roots and 50 mg L−1 TiO2 concentration, confirmed by SEM. Additionally, anatomical damages like vascular bundle disruption and irregularity in the cortex cells were confirmed by SEM. Additionally, anatomical damages were observed on the three main organs (root, hypocotyl, and leaves) evidenced by the OM. Perspectives to confirm new hypotheses of the interaction of nanomaterials with biological systems are necessary. [ABSTRACT FROM AUTHOR] |
| Databáze: |
GreenFILE |
| Externí odkaz: |
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