13 documents found, page 1 of 2
Assessing the Genotoxicity of Cellulose Nanomaterials in a Co-Culture of Human ...
Ventura, Célia; Pinto, Fátima V.; Lourenço, Ana Filipa; Pedrosa, Jorge F. S.; Fernandes, Susete N.; da Rosa, Rafaela R.; Godinho, Maria HelenaCellulose micro/nanomaterials (CMNMs) are innovative materials with a wide spectrum of industrial and biomedical applications. Although cellulose has been recognized as a safe material, the unique properties of its nanosized forms have raised concerns about their safety for human health. Genotoxicity is an endpoint that must be assessed to ensure that no carcinogenic risks are associated with exposure to nanoma...
Assessing the Genotoxicity of Cellulose Nanomaterials in a Co-Culture of Human ...
Ventura, Célia; Pinto, Fátima; Lourenço, Ana Filipa; Pedrosa, Jorge F. S.; Fernandes, Susete N.; da Rosa, Rafaela R.; Godinho, Maria HelenaCellulose micro/nanomaterials (CMNMs) are innovative materials with a wide spectrum of industrial and biomedical applications. Although cellulose has been recognized as a safe material, the unique properties of its nanosized forms have raised concerns about their safety for human health. Genotoxicity is an endpoint that must be assessed to ensure that no carcinogenic risks are associated with exposure to nanoma...
Analysis of the In Vitro Toxicity of Nanocelluloses in Human Lung Cells as Comp...
Pinto, Fátima V.; Lourenço, Ana Filipa; Pedrosa, Jorge F. S.; Gonçalves, Lídia; Ventura, Célia; Vital, Nádia; Bettencourt, Ana; Fernandes, Susete N.Cellulose micro/nanomaterials (CMNM), comprising cellulose microfibrils (CMF), nanofibrils (CNF), and nanocrystals (CNC), are being recognized as promising bio-nanomaterials due to their natural and renewable source, attractive properties, and potential for applications with industrial and economical value. Thus, it is crucial to investigate their potential toxicity before starting their production at a larger ...
Analysis of the In Vitro Toxicity of Nanocelluloses in Human Lung Cells as Comp...
Pinto, Fátima; Lourenço, Ana Filipa; Pedrosa, Jorge F.S.; Gonçalves, Lídia; Ventura, Célia; Vital, Nádia; Bettencourt, Ana; Fernandes, Susete N.Cellulose micro/nanomaterials (CMNM), comprising cellulose microfibrils (CMF), nanofibrils (CNF), and nanocrystals (CNC), are being recognized as promising bio-nanomaterials due to their natural and renewable source, attractive properties, and potential for applications with industrial and economical value. Thus, it is crucial to investigate their potential toxicity before starting their production at a larger ...
Investigation of potential respiratory adverse effects of micro/nanofibrillated...
Pinto, Fátima; Ventura, Célia; Cadete, João; Lourenço, Ana Filipa; Pedrosa, Jorge F.S.; Vital, Nádia; Pereira, Joana F.S.; Matos, PauloMicro/nanofibrillated (CMF/CNF) and nanocrystalline (CNC) celluloses are innovative materials with enormous potential for industrial and biomedical applications. Their expanding production/application urges the investigation of their safety for human health. This study aimed at investigating the potential respiratory outcomes of two CMF/CNF and one CNC produced from bleached Eucalyptus globulus kraft pulp using...
Toxicidade da nanocelulose em modelos in vitro: um contributo para a avaliação ...
Ventura, Célia; Pinto, Fátima; Marques, Catarina; Cadete, João; Vilar, Madalena; Lourenço, Ana Filipa; Pedrosa, Jorge F. S.; Fernandes, Susete N.As nanoceluloses são nanomateriais inovadores com potencial para uma vasta gama de aplicações industriais e biomédicas. No entanto, a expansão da sua produção tem vindo a suscitar preocupações quanto aos possíveis efeitos, a longo prazo, na saúde humana. Este estudo teve como objetivo avaliar a segurança de algumas nanoceluloses produzidas a partir de matéria-prima nacional, através da caracterização da sua pot...
Analysis of the In Vitro Toxicity of Nanocelluloses in Human Lung Cells as Comp...
Pinto, Fátima; Lourenço, Ana Filipa; Pedrosa, Jorge; Gonçalves, Lídia; Ventura, Célia; Vital, Nádia; Bettencourt, Ana; Fernandes, Susete N.Cellulose micro/nanomaterials (CMNM), comprising cellulose microfibrils (CMF), nanofibrils (CNF), and nanocrystals (CNC), are being recognized as promising bio-nanomaterials due to their natural and renewable source, attractive properties, and potential for applications with industrial and economical value. Thus, it is crucial to investigate their potential toxicity before starting their production at a larger ...
Flexible random lasers in dye-doped bio-degradable cellulose nanocrystalline ne...
Germano, Gleice C.M.; Machado, Yan D.R.; Martinho, Lucas; Fernandes, Susete N.; Costa, Antonio Mario L.M.; Pecoraro, Edison [UNESP]Made available in DSpace on 2020-12-12T02:34:35Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-01-01; Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq); In this work, we developed and investigated a random laser based on rhodamine6G (Rh6G) in ethylene glycol (EG) solution with varying cellulose nanocrystalline (CNC) needles as scatterers in the lasing media. Besides the suspension-in-...
Cellulose nanocrystals: mind the microgap in iridescent Cellulose Nanocrystal F...
Fernandes, Susete N.; Almeida, Pedro L.; Monge, Nuno; Aguirre, Luis E.; Reis, Dennys; de Oliveira, Cristiano L. P.; Neto, António M. F.Solid films prepared from cellulose nanocrystals (CNCs) present remarkable optical properties: iridescence,[1] selective reflection of left circularly polarized (LCP) light, and transmission of right circularly polarized (RCP) light.[2] The same phenomenon has been observed in certain insect cuticles, for example in the Plusiotis batesi as well as in the Plusiotis optima, where only LCP light is selectively ref...
Rheo-optical characterization of liquid crystalline acetoxypropylcellulose melt...
Teixeira, P. F.; Fernandes, Susete N.; Canejo, João; Godinho, Maria Helena; Covas, J. A.; Leal, Catarina Rosa; Hilliou, L.The rheological and structural characteristics of acetoxypropylcellulose (APC) nematic melt are studied at shear rates ranging from 10 s 1 to 1000 s 1 which are relevant to extrusion based processes. APC shows a monotonic shear thinning behavior over the range of shear rates tested. The negative extrudate-swell shows a minimum when a critical shear rate g_ c is reached. For shear rates smaller than g_ c, the fl...