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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
26/11/2024 |
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Data da última atualização: |
07/02/2025 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
OLIVEIRA, K. M. G. de; CARVALHO, E. H. de S.; PEREIRA, B. da S.; PETERSOHN JUNIOR, E.; MAGALHAES, W. L. E.; MOURA, R. B. P.; TAVEIRA, S. F.; CADEMARTORI, P. H. G. de; JACUMAZO, J.; FREITAS, R. A. de; OLIVEIRA, G. A. R. de; LEME, D. M. |
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Afiliação: |
KETELEN MICHELE GUILHERME DE OLIVEIRA, UNIVERSIDADE FEDERAL DO PARANÁ; ENDREW HENRIQUE DE SOUSA CARVALHO, UNIVERSIDADE FEDERAL DO GOIÁS; BRENO DA SILVA PEREIRA, UNIVERSIDADE FEDERAL DO GOIÁS; EGON PETERSOHN JUNIOR, UNIVERSIDADE FEDERAL DO PARANÁ; WASHINGTON LUIZ ESTEVES MAGALHAES, CNPF; RAYSSA BARBARY PEDROZA MOURA, UNIVERSIDADE FEDERAL DO GOIÁS; STEPHÂNIA FLEURY TAVEIRA, UNIVERSIDADE FEDERAL DO GOIÁS; PEDRO HENRIQUE GONZALEZ DE CADEMARTORI, UNIVERSIDADE FEDERAL DO PARANÁ; JOSLAINE JACUMAZO, UNIVERSIDADE FEDERAL DO PARANÁ; RILTON ALVES DE FREITAS, UNIVERSIDADE FEDERAL DO PARANÁ; GISELE AUGUSTO RODRIGUES DE OLIVEIRA; DANIELA MORAIS LEME, NATIONAL INSTITUTE FOR ALTERNATIVE TECHNOLOGIES OF DETECTION. |
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Título: |
Testing the ecotoxicity of nanofibrillated kraft-bleached pulp for use in nanotechnology products. |
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Ano de publicação: |
2024 |
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Fonte/Imprenta: |
Cellulose, v. 32, p. 519-534, 2025. |
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ISSN: |
0969-0239 |
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DOI: |
https://doi.org/10.1007/s10570-024-06258-0 |
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Idioma: |
Inglês |
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Conteúdo: |
Cellulose nanofbers (CNFs) are nanomaterials with several potential applications in nanotechnology-based products, and their renewable origin and biodegradability property have attracted attention in sustainable product development; however, their environmental impacts still need to be fully understood as other nanoparticles. In this study, CNFs obtained from bleached cellulose pulp of Eucalyptus sp were evaluated regarding their potential to afect terrestrial and aquatic ecosystems. Thus, an ecotoxicity testing battery composed of phytotoxicity test, plant genotoxicity assay, earthworm acute toxicity test, algal chronic toxicity test, and Daphnia magna acute immobilization test was considered herein. Also, mean diameter and zeta potential were investigated in CNF exposure media to evaluate its aggregation behavior. CNFs did not present acute toxicity to aquatic organisms (algae and microcrustaceans) and did not cause lethal efects on earthworms. The results from plant test systems showed that CNFs did not inhibit seed germination or root development or cause cellular and genetic changes in plant cells. This later result does not agree with the scientifc literature, which reported genotoxicity for other types of nanocellulose, which suggests that chemical identity and physicochemical properties can infuence the toxicity of nanocelluloses. Thus, CNF kraft-bleached pulp is not toxic to key organisms of both aquatic and terrestrial ecosystems. Probably, larger aggregates precipitated in the aquatic toxicity tests, preventing the interaction of nanoparticles with the living organisms. Therefore, the fndings presented here open a good perspective of applications of CNF kraft-bleached pulp on nanotechnology-based products as potential environmentally safe nanomaterial. MenosCellulose nanofbers (CNFs) are nanomaterials with several potential applications in nanotechnology-based products, and their renewable origin and biodegradability property have attracted attention in sustainable product development; however, their environmental impacts still need to be fully understood as other nanoparticles. In this study, CNFs obtained from bleached cellulose pulp of Eucalyptus sp were evaluated regarding their potential to afect terrestrial and aquatic ecosystems. Thus, an ecotoxicity testing battery composed of phytotoxicity test, plant genotoxicity assay, earthworm acute toxicity test, algal chronic toxicity test, and Daphnia magna acute immobilization test was considered herein. Also, mean diameter and zeta potential were investigated in CNF exposure media to evaluate its aggregation behavior. CNFs did not present acute toxicity to aquatic organisms (algae and microcrustaceans) and did not cause lethal efects on earthworms. The results from plant test systems showed that CNFs did not inhibit seed germination or root development or cause cellular and genetic changes in plant cells. This later result does not agree with the scientifc literature, which reported genotoxicity for other types of nanocellulose, which suggests that chemical identity and physicochemical properties can infuence the toxicity of nanocelluloses. Thus, CNF kraft-bleached pulp is not toxic to key organisms of both aquatic and terrestrial ecosystems. Probably, larger aggregates precip... Mostrar Tudo |
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Palavras-Chave: |
Ecotoxicidade; Nanofbers; Nanotecnologia; Teste de toxicidade. |
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Thesagro: |
Celulose; Polpa. |
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Thesaurus Nal: |
Cellulose; Daphnia magna; Eucalyptus; Nanotechnology; Pulp; Toxicity testing. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
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001 2169577
005 2025-02-07
008 2024 bl uuuu u00u1 u #d
022 $a0969-0239
024 7 $ahttps://doi.org/10.1007/s10570-024-06258-0$2DOI
100 1 $aOLIVEIRA, K. M. G. de
245 $aTesting the ecotoxicity of nanofibrillated kraft-bleached pulp for use in nanotechnology products.$h[electronic resource]
260 $c2024
520 $aCellulose nanofbers (CNFs) are nanomaterials with several potential applications in nanotechnology-based products, and their renewable origin and biodegradability property have attracted attention in sustainable product development; however, their environmental impacts still need to be fully understood as other nanoparticles. In this study, CNFs obtained from bleached cellulose pulp of Eucalyptus sp were evaluated regarding their potential to afect terrestrial and aquatic ecosystems. Thus, an ecotoxicity testing battery composed of phytotoxicity test, plant genotoxicity assay, earthworm acute toxicity test, algal chronic toxicity test, and Daphnia magna acute immobilization test was considered herein. Also, mean diameter and zeta potential were investigated in CNF exposure media to evaluate its aggregation behavior. CNFs did not present acute toxicity to aquatic organisms (algae and microcrustaceans) and did not cause lethal efects on earthworms. The results from plant test systems showed that CNFs did not inhibit seed germination or root development or cause cellular and genetic changes in plant cells. This later result does not agree with the scientifc literature, which reported genotoxicity for other types of nanocellulose, which suggests that chemical identity and physicochemical properties can infuence the toxicity of nanocelluloses. Thus, CNF kraft-bleached pulp is not toxic to key organisms of both aquatic and terrestrial ecosystems. Probably, larger aggregates precipitated in the aquatic toxicity tests, preventing the interaction of nanoparticles with the living organisms. Therefore, the fndings presented here open a good perspective of applications of CNF kraft-bleached pulp on nanotechnology-based products as potential environmentally safe nanomaterial.
650 $aCellulose
650 $aDaphnia magna
650 $aEucalyptus
650 $aNanotechnology
650 $aPulp
650 $aToxicity testing
650 $aCelulose
650 $aPolpa
653 $aEcotoxicidade
653 $aNanofbers
653 $aNanotecnologia
653 $aTeste de toxicidade
700 1 $aCARVALHO, E. H. de S.
700 1 $aPEREIRA, B. da S.
700 1 $aPETERSOHN JUNIOR, E.
700 1 $aMAGALHAES, W. L. E.
700 1 $aMOURA, R. B. P.
700 1 $aTAVEIRA, S. F.
700 1 $aCADEMARTORI, P. H. G. de
700 1 $aJACUMAZO, J.
700 1 $aFREITAS, R. A. de
700 1 $aOLIVEIRA, G. A. R. de
700 1 $aLEME, D. M.
773 $tCellulose$gv. 32, p. 519-534, 2025.
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