Results 1 to 10 of about 199 (121)

Nanoestruturas de carbono (nanotubos, grafeno): Quo Vadis? [PDF]

open access: yesQuimica Nova, 2013
We describe general considerations about the present and the future standing of carbon nanostructures, mainly carbon nanotubes and graphene. Basic concepts and definitions, select structure/property relationships, and potential applications are reviewed.
Aldo J G Zarbin
exaly   +5 more sources

Funcionalização de nanotubos de Carbono [PDF]

open access: yesQuimica Nova, 2007
Carbon nanotubes are very stable systems having considerable chemical inertness due to the strong covalent bonds of the carbon atoms on the nanotube surface. Many applications of carbon nanotubes require their chemical modification in order to tune/control their physico-chemical properties.
Solange Fagan, Antonio G Souza Filho
exaly   +4 more sources

Nanotecnología II. Nanotubos de carbono

open access: yesEducación Química, 2018
Los nanotubos de carbono fueron preparados por primera vez por Sumio Iijima (1991), un microscopista de la corporación electrónica japonesa NEC, quien durante muchos años había estudiado la estructura a escala atómica de las fibras de carbón.
Andoni Garritz
doaj   +2 more sources

Otimização do processo de dispersão de nanotubos de carbono em poliuretano termorrígido

open access: yesPolimeros, 2016
Resumo Neste trabalho foi desenvolvido um processo empregando misturador de alto cisalhamento e moinho de rolos para dispersar MWCNTs (multiwalled carbon nanotubes) puros e modificados em poliol visando a preparação de concentrados de 3% em massa ...
Glaura Goulart Silva, Lavall R L
exaly   +3 more sources

Citotoxicidade e genotoxicidade de nanotubos de carbon [PDF]

open access: yesQuimica Nova, 2012
There are many controversies regarding the cyto- and genotoxicity of carbon nanotubes (CNTs). In this work, we discuss that many of the incongruous arguments are probably associated with the poor physical-chemical characterization of the CNT samples used in many publications.
Elaine Yoshiko Matsubara   +1 more
exaly   +5 more sources

Nanotubos de carbono: potencial de uso em medicina veterinária

open access: yesCiencia Rural, 2014
A utilização de nanomateriais em sistemas de segurança alimentar, detecção de patógenos, proteção de ambientes, no diagnóstico e tratamento de doenças, como sistema de entrega de fármacos e na bioengenharia tecidual tem contribuído para os avanços ...
Íngrid Rios Lima Machado   +2 more
exaly   +3 more sources

Modelos Geométricos en el Estudio de Nanotubos de Carbono

open access: yesTecnoLógicas, 2010
Carbon nanotubes have become in the last two decades in greatest elements both in theoretical investigation as technological developments. From theoretical point of view, a model is necessary that describe on the best possible its physical properties ...
Guillermo A. Guirales   +2 more
doaj   +6 more sources

Funcionalização de nanotubos de Carbono Functionalization of carbon nanotubes

open access: yesQuímica Nova, 2007
Carbon nanotubes are very stable systems having considerable chemical inertness due to the strong covalent bonds of the carbon atoms on the nanotube surface.
Antônio Gomes de Souza Filho   +1 more
doaj   +2 more sources

Efecto inhibitorio de nanotubos de carbono con extactos de Bacillus amyloliquefaciens sobre hongos fitopatógenos

open access: yesEcosistemas y Recursos Agropecuarios, 2022
Las enfermedades inducidas por hongos fitopatógenos generan pérdidas económicas considerables y daños severos a los cultivos agrícolas. El objetivo de esta investigación fue evaluar el efecto inhibitorio in vitro de nanotubos de carbono con extractos de
Antonio Orozco-Plancarte   +6 more
doaj   +1 more source

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