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Da Silva GH, Franqui LS, De Farias MA, De Castro VLSS, Byrne HJ, Martinez DST, Monteiro RTR, Casey A. TiO 2-MWCNT nanohybrid: Cytotoxicity, protein corona formation and cellular internalisation in RTG-2 fish cell line. Aquat Toxicol 2023; 257:106434. [PMID: 36870176 DOI: 10.1016/j.aquatox.2023.106434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 01/03/2023] [Accepted: 02/16/2023] [Indexed: 06/18/2023]
Abstract
Titanium dioxide nanoparticles-multiwalled carbon nanotubes (TiO2-MWCNT) nanohydrid has an enhanced photocatalytic activity across the visible light with promising applications in environmental remediation, solar energy devices and antimicrobial technologies. However, it is necessary to evaluate the toxicological effects of TiO2-MWCNT towards safe and sustainable development of nanohybrids. In this work, we studied the cytotoxicity, protein corona formation and cellular internalisation of TiO2-MWCNT on fibroblasts derived from gonadal rainbow trout tissue (RTG-2) for the first time. This nanohydrid did not show any toxicity effect on RTG-2 cells up to 100 mg L-1 after 24 h of exposure as monitored by alamar blue, neutral red and trypan blue assays (in presence or absence of foetal bovine serum, FBS). Futhermore, cryo-transmission electron microscopy analysis demonstrated that TiO2 particles is attached on nanotube surface after FBS-protein corona formation in cell culture medium. Raman spectroscopy imaging showed that TiO2-MWCNT can be internalised by RTG-2 cells. This work is a novel contribution towards better understanding the nanobiointeractions of nanohydrids linked to their in vitro effects on fish cells in aquatic nanoecotoxicology.
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Affiliation(s)
- Gabriela H Da Silva
- Brazilian Nanotechnology National Laboratory (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, São Paulo, Brazil; Center of Nuclear Energy in Agriculture (CENA), University of São Paulo (USP), Piracicaba, São Paulo, Brazil; Laboratory of Ecotoxicology and Biosafety, EMBRAPA Environment, Jaguariúna, São Paulo, Brazil; FOCAS Research Institute, TU Dublin, City Campus, Camden Row, Dublin 8, Ireland.
| | - Lidiane Silva Franqui
- Brazilian Nanotechnology National Laboratory (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, São Paulo, Brazil
| | - Marcelo A De Farias
- Brazilian Nanotechnology National Laboratory (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, São Paulo, Brazil
| | | | - Hugh J Byrne
- FOCAS Research Institute, TU Dublin, City Campus, Camden Row, Dublin 8, Ireland
| | - Diego S T Martinez
- Brazilian Nanotechnology National Laboratory (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, São Paulo, Brazil; Center of Nuclear Energy in Agriculture (CENA), University of São Paulo (USP), Piracicaba, São Paulo, Brazil
| | - Regina T R Monteiro
- Center of Nuclear Energy in Agriculture (CENA), University of São Paulo (USP), Piracicaba, São Paulo, Brazil
| | - Alan Casey
- FOCAS Research Institute, TU Dublin, City Campus, Camden Row, Dublin 8, Ireland
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De Farias MA, Amico SC, Coelho LAF, Pezzin SH. Multi-component nanocomposites of epoxy/silsesquioxane reinforced with carbon fibers and carbon nanotubes processed by resin transfer molding. POLYM-PLAST TECH MAT 2019. [DOI: 10.1080/25740881.2019.1669649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Marcelo A. De Farias
- Center of Technological Sciences, Santa Catarina State University, Joinville, Brazil
| | - Sandro C. Amico
- Materials Engineering Department, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Luiz A. F. Coelho
- Center of Technological Sciences, Santa Catarina State University, Joinville, Brazil
| | - Sérgio H. Pezzin
- Center of Technological Sciences, Santa Catarina State University, Joinville, Brazil
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Souza SF, Mariano M, De Farias MA, Bernardes JS. Effect of depletion forces on the morphological structure of carboxymethyl cellulose and micro/nano cellulose fiber suspensions. J Colloid Interface Sci 2019; 538:228-236. [DOI: 10.1016/j.jcis.2018.11.096] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Revised: 11/21/2018] [Accepted: 11/24/2018] [Indexed: 11/26/2022]
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