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Bilayer biocomposites based on coated cellulose paperboard with films of polyhydroxybutyrate/cellulose nanocrystals
(Springer Netherlands, 2018-02-26)
In this paper, a biodegradable bilayer nanocomposite based on reinforced polyhydroxybutyrate (PHB) with cellulose nanocrystals (CNC) and cellulose paperboard was prepared. In order to obtain optimal properties two different ...
Absorption of Siderite Within a Chemically Modified Poly(lactic acid) Based Composite Material for Agricultural Applications
(Springer/Plenum Publishers, 2018-05)
Iron is an essential micronutrient for higher plants. Although abundant in most soils, Fe3+ is not available for plant uptake, because of its poor solubility. Ferrous sulfate is a fertilizer used for crops but, Fe2+ is ...
Biocomposites based on renewable resource: Acetylated and non acetylated cellulose cardboard coated with polyhydroxybutyrate
(Elsevier, 2009-10)
Renewable resource based bilayer films were prepared from polyhydroxybutyrate film (PHB) and cellulose cardboard via compression molding, containing 5, 10, 15 and 20 wt% of PHB. The effects of PHB contents on moisture ...
Properties and processing relationship of polyhydroxybutyrate and cellulose biocomposites
(Elsevier, 2015-07-02)
The aim of this work was the development of totally biodegradable composites for using as packaging in food and agriculture industry. Optimum conditions to obtain bilayer composites from polyhydroxybutyrate (PHB) and ...
Caracterización del comportamiento higromórfico de un material responsivo de dos capas en madera bajo condiciones de humedad relativa de la ciudad de Bogotá
(scuela de Arquitectura y UrbanismoUniversidad Nacional de Colombia - Sede Bogotá, 2019-12-02)
The materials have physical-mechanical properties intrinsic to their nature and these have
always been considered positive or negative according to their most widespread uses. In
terms of structural applications in ...
Inclusión de aceite esencial de orégano y nisina encapsulados en biorecubrimiento comestible a partir de quitosano como alternativa de conservación en carne de hamburguesa de res
(Universidad Nacional de ColombiaBogotá - Ciencias Agrarias - Maestría en Ciencia y Tecnología de AlimentosBogotá - Ciencias Agrarias - Maestría en Ciencia y Tecnología de AlimentosDepartamento de AgronomíaFacultad de Ciencias AgrariasBogotá, ColombiaUniversidad Nacional de Colombia - Sede Bogotá, 2020-07-24)
Garantizar seguridad alimentaria es un asunto relevante que conlleva a proveer alternativas innovadoras que de manera natural prolonguen vida útil del producto y garanticen su inocuidad. Este trabajo propone el desarrollo ...
Modificación de nanopartículas de hidroxiapatita con puntos de carbono para la fabricación de scaffolds multiescala
The use of medications, surgical procedures and bone grafts are the most commonly used solutions for the treatment of bone defects. Grafts are the most used method for the treatment of this type of defects nowadays, however ...
Photostability enhancement in oligo (phenylene vinylene) systems and their application as heterogeneous photocatalysts
(Universidad Nacional de ColombiaBogotá - Ciencias - Doctorado en Ciencias - QuímicaDepartamento de QuímicaFacultad de CienciasBogotá, ColombiaUniversidad Nacional de Colombia - Sede Bogotá, 2022-08-25)
The first chapter revises the most relevant aspects of phenylene vinylene (PV) systems applied to photocatalysis. Despite the photochemical applications of these conjugated systems that have been widely described and involve ...