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Registro Completo |
Biblioteca(s): |
Embrapa Florestas. |
Data corrente: |
12/05/2020 |
Data da última atualização: |
27/05/2020 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
MATTOS, B. D.; TARDY, B. L.; GRECA, L. G.; KÄMÄRÄINEN, T.; XIANG, W.; CUSOLA, O.; MAGALHAES, W. L. E.; ROJAS, O. J. |
Afiliação: |
SCHOOL OF CHEMICAL ENGINEERING, AALTO UNIVERSITY; SCHOOL OF CHEMICAL ENGINEERING, AALTO UNIVERSITY; SCHOOL OF CHEMICAL ENGINEERING, AALTO UNIVERSITY; SCHOOL OF CHEMICAL ENGINEERING, AALTO UNIVERSITY; SCHOOL OF CHEMICAL ENGINEERING, AALTO UNIVERSITY; UNIVERSITAT POLITÈCNICA DE CATALUNYA, ESCOLA SUPERIOR D’ENGINYERIES INDUSTRIAL, AEROESPACIAL I AUDIOVISUAL DE TERRASSA; WASHINGTON LUIZ ESTEVES MAGALHAES, CNPF; SCHOOL OF CHEMICAL ENGINEERING, AALTO UNIVERSITY. |
Título: |
Nanofibrillar networks enable universal assembly of superstructured particle constructs. |
Ano de publicação: |
2020 |
Fonte/Imprenta: |
Science Advances, v. 6, n. 19, eaaz7328, May 2020. |
ISBN: |
2375-2548 |
DOI: |
https://doi.org/10.1126/sciadv.aaz7328 |
Idioma: |
Inglês |
Conteúdo: |
Superstructured colloidal materials exploit the synergies between components to develop new or enhanced functions. Cohesion is a primary requirement for scaling up these assemblies into bulk materials, and it has only been fulfilled in case-specific bases. Here, we demonstrate that the topology of nanonetworks formed from cellulose nanofibrils (CNFs) enables robust superstructuring with virtually any particle. An intermixed network of fibrils with particles increases the toughness of the assemblies by up to three orders of magnitude compared, for instance, to sintering. Supramolecular cohesion is transferred from the fibrils to the constructs following a power law, with a constant decay factor for particle sizes from 230 nm to 40 ?m. Our findings are applicable to other nanofiber dimensions via a rationalization of the morphological aspects of both particles and nanofibers. CNFbased cohesion will move developments of functional colloids from laboratory-scale toward their implementation in large-scale nanomanufacturing of bulk materials. |
Palavras-Chave: |
Nanocellulose; Nanofibrilla. |
Thesagro: |
Celulose. |
Thesaurus Nal: |
Cellulose. |
Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
Marc: |
LEADER 01843naa a2200277 a 4500 001 2122280 005 2020-05-27 008 2020 bl uuuu u00u1 u #d 022 $a2375-2548 024 7 $ahttps://doi.org/10.1126/sciadv.aaz7328$2DOI 100 1 $aMATTOS, B. D. 245 $aNanofibrillar networks enable universal assembly of superstructured particle constructs.$h[electronic resource] 260 $c2020 520 $aSuperstructured colloidal materials exploit the synergies between components to develop new or enhanced functions. Cohesion is a primary requirement for scaling up these assemblies into bulk materials, and it has only been fulfilled in case-specific bases. Here, we demonstrate that the topology of nanonetworks formed from cellulose nanofibrils (CNFs) enables robust superstructuring with virtually any particle. An intermixed network of fibrils with particles increases the toughness of the assemblies by up to three orders of magnitude compared, for instance, to sintering. Supramolecular cohesion is transferred from the fibrils to the constructs following a power law, with a constant decay factor for particle sizes from 230 nm to 40 ?m. Our findings are applicable to other nanofiber dimensions via a rationalization of the morphological aspects of both particles and nanofibers. CNFbased cohesion will move developments of functional colloids from laboratory-scale toward their implementation in large-scale nanomanufacturing of bulk materials. 650 $aCellulose 650 $aCelulose 653 $aNanocellulose 653 $aNanofibrilla 700 1 $aTARDY, B. L. 700 1 $aGRECA, L. G. 700 1 $aKÄMÄRÄINEN, T. 700 1 $aXIANG, W. 700 1 $aCUSOLA, O. 700 1 $aMAGALHAES, W. L. E. 700 1 $aROJAS, O. J. 773 $tScience Advances$gv. 6, n. 19, eaaz7328, May 2020.
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20. | | MATTOS, B. D.; GOMES, G. R.; MATOS, M. de; RAMOS, L. P.; MAGALHAES, W. L. E. Consecutive production of hydroalcoholic extracts, carbohydrates derivatives and silica nanoparticles from Equisetum arvense. Waste and Biomass Valorization, v. 9, n. 11, p. 1993-2002, Nov. 2018.Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
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