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Nanocristais de celulose provenientes de fibras amazônicas com potencial aplicação na produção de nanocompósitos
(Universidade Federal de São Carlos, 2021-11-19)
Among all the natural polymers, we can highlight the use of cellulose, a mutable and profuse biopolymer in nature, which has enormous chemical variability due to the functionalization of its various hydroxyl groups. It can ...
Aplicação de Plasma Electrolytic Oxidation (PEO) para síntese de óxidos anódicos sobre alumínio em eletrólito contendo íons Ag+
(Universidade Federal de São Carlos, 2020-03-27)
The growing concern with the quality of food by consumers, has led the industry to new technologies to guarantee this condition. Antimicrobial films appear as active packaging that, in addition to protecting and conditioning ...
Caracterização da alumina anódica porosa modificada por plasma
(Universidade Federal de São Carlos, 2015-06-29)
In this study, the wettability of porous anodic alumina (PAA) surfaces modified by plasma was investigated. The porous anodic alumina films were grown on aluminum substrate using a two step anodization procedure in oxalic ...
Síntese e caracterização de filmes anódicos de NB-AL2O3 sobre al por oxidação eletrolítica à plasma
(Universidade Federal de São Carlos, 2019-03-07)
In this study, the anodization under high electric field, also known as Plasma Electrolytic Oxidation (PEO), was used for the synthesis of oxide coatings containing Nb2O5 and Al2O3 on Al substrate. The mechanisms of the ...
Fabricação de biossensor óptico de glicose em alumina anódica porosa
(Universidade Federal de São Carlos, 2016-03-31)
Porous anodic alumina (PAA) has been used as platform for the manufacture of optical sensors. Itshows chemical resistance, thermal stability, hardness, biocompatibility, high surface area which facilitates interaction with ...
Síntese de membranas de alumina anódica porosa sobre substratos metálicos obtidos por evaporação térmica
(Universidade Federal de São Carlos, 2017-03-14)
This work covers the investigation and synthesis of nanometric structures of Porous Anodic Alumina PAA, produced from low purity substrates, in aim to obtain selfsustained membranes. The Hard Anodization (HA) and Mild ...
Investigação do fenômeno oscilatório na síntese de filmes de Nb2O5 em PEO.
(Universidade Federal de São Carlos, 2024-03-21)
This research focuses on the process of plasma electrolytic oxidation (PEO), a type of anodization that has been extensively studied due to the wide range of applications its coatings provide to materials, such as corrosion ...
(Bio)sensores eletroquímicos impressos em 3d e novos filamentos condutivos aplicados à química analítica
(Universidade Federal de São Carlos, 2024-02-23)
Electrochemical sensors can be employed for diverse detection purposes, and their modification with biological compounds enables the development of biosensors with selectivity for analytes such as viruses. Furthermore, the ...
Influência de nanopartículas de celulose na autoagregação de sais de bile
(Universidade Federal de São Carlos, 2024-02-05)
Surfactant self-aggregates can exhibit pronounced viscoelasticity, which can be modulated according to the addition of different molecules to the medium in which they are inserted. In this work, the effect of adding cellulose ...
Obtenção de sistemas auto-organizados formados por sais de bile e lecitina: efeito da adição de solutos polares
(Universidade Federal de São Carlos, 2024-03-21)
Understanding the physicochemical properties of obtaining aggregates provides insights into how to modify and adjust them for specific applications of interest. Self-aggregated systems can be obtained by adding surfactants ...