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Propriedades físicas de sedas de lepidópteros neotropicais
(2022-05-21)
Silk fibers produced by non-domesticated moths have distinct properties from the widely cultivated Bombyx mori silk and show promising applications in several areas. However, few Lepidoptera species have their silk adequately ...
Poliuretanos fotoativos como estratégia de prevenção à resistência bacteriana
(2022-08-11)
Quantum carbon dots (CQDs) are amorphous carbon nanoparticles that have specific functionalities, among them, the fluorescence emission at particular wavelengths and the production of singlet oxygen (1O2). However, due to ...
Estudo da influência de resinas de tack em formulações elastoméricas e metodologias de avaliação aplicadas
(2022-09-20)
The present work aimed to evaluate the influence of different types of tack resins in elastomeric formulations, as well as to develop a simple, robust and reproducible test methodology to evaluate the tack of these elastomeric ...
Síntese e caracterização de redes metalorgânicas e a busca pela atividade biomimética tipo peroxidase
(2022-03-08)
Metal-organic frameworks (MOF) are porous materials made up of metallic ions coordinated with organic ligands, forming two-dimensional and three-dimensional structures. Since their appearance, these structures have attracted ...
Influência da radiação no comportamento de atrito de filmes finos de dióxido de titânio: fototribologia
(2022-08-17)
In dry sliding of two surfaces, the friction force depends on the pair of materials and the contact conditions. If the material and operating conditions remain unchanged, the friction force is constant. Techniques for ...
Influência de um aditivo compensador de retração à base de óxido de cálcio supercalcinado nas propriedades do concreto autoadensável
(2022-06-07)
Concrete consumption demand of self-compacting concrete is continuously growing due to investments in new infrastructures and upgrades or replacements of old infrastructures in the world. Monitoring the quality and increasing ...
Desenvolvimento de um dispositivo inovador de simulação dinâmica do sistema respiratório para avaliação de um TNT revestido com filme de Cu
(2022-10-20)
Protective face masks act as the first defense line against pathogens that already exist and those that may emerge over the time, their importance has been proven during the recent COVID-19 pandemic. The development and ...
Otimização da adesão de filmes de DLC sobre aço SAE 4140 utilizando intercamadas contendo silício depositadas a partir de tetrametilsilano
(2022-11-16)
Diamond-like carbon (DLC) films have been gaining space in the automotive, aeronautical, biomedical and decorative industries due to their low coefficient of frictionand high wear resistance. However, the low adhesion ...
Desgaste microabrasivo de revestimento níquel-fósforo tratado termicamente aplicado sobre liga Cu-Be C17200
(2022-06-23)
Copper-beryllium alloys are widely used to manufacture thermoplastics injection molds due to their high thermal conductivity. Even though these alloys admit precipitation hardening at temperatures between 250 and 400 ºC, ...