Buscar
Mostrando ítems 1-10 de 10
Artículo
Reversible pH-sensitive chitosan-based hydrogels. Influence of dispersion composition on rheological properties and sustained drug delivery
(MDPI, 2018)
The present work deals with the synthesis of micro-structured biomaterials based on chitosan (CTS) for their applications as biocompatible carriers of drugs and bioactive compounds. Twelve dispersions were prepared by ...
Artículo
Gellan gum fluid gels: influence of the nature and concentration of gel-promoting ions on rheological properties
(Springer, 2018-11)
Low-acyl gellan gum fluid gels were obtained using two different gel-promoting cations under the same processing conditions, and their rheological properties were investigated. For that reason, stress and frequency sweep ...
Artículo
Effect of temperature and shear on the microstructure of a microbial polysaccharide secreted by Sphingomonas species in aqueous solution
(Elsevier, 2018-10-15)
Diutan gum is a biological polymer produced by Sphingomonas sp. In aqueous solution it shows gel-like structure under quiescent conditions. However, the flow-induced evolution of its viscoelastic properties and its ...
Artículo
Rheology, microstructural characterization and physical stability of W/α-PINENE/W emulsions formulated with copolymers
(Elsevier, 2018)
In this work the microstructure and the physical stability of emulsions containing α-pinene and gellan gum were studied as a function of Atlas™ G-5000/Atlox™ 4912 copolymer mass ratio, R, used as emulsifier. In order to ...
Artículo
Formulation and optimization of emulsions based on bitter fennel essential oil and EO/BO block copolymer surfactant
(Elsevier, 2018)
The influence of EO/BO block copolymer surfactant concentration in the range (1–5% (m/m)) and emulsification time on the emulsion stability and droplet size distribution of bitter fennel essential oil-in-water emulsions ...
Artículo
Effect of pH and nanoclay content on the morphology and physicochemicalproperties of soy protein/montmorillonite nanocomposite obtained byextrusion
(Elsevier, 2018)
The present work attempts to clarify the influence of montmorillonite nanoclay content and pH on the me-chanical properties of extruded soy protein nanocomposites. The mechanical behaviour is dominated by theformation of ...
Artículo
Development of soy protein-based matrices containing zinc as micronutrient for horticulture
(Elsevier, 2018-10)
Protein-based bioplastics may be regarded as novel biopolymer matrices based on renewable natural components. Due to technological, economic and environmental benefits, these biopolymer matrices are highly attractive for ...
Artículo
Influence of primary homogenization step on microfluidized emulsions formulated with thyme oil and Appyclean 6548
(Elsevier, 2018)
This contribution deals with the development of emulsions formulated using thyme essential oil and a new biomass-derived surfactant. In addition, this work extends our knowledge concerning the factors that can influence ...
Artículo
Insight into the BiFeO3 flash sintering process by in-situ energy dispersive X-ray diffraction (ED-XRD)
(Elsevier, 2018)
The sintering mechanism of BiFeO3 has been investigated in-situ by energy dispersive X-ray diffraction (ED-XRD) using a high-energy white collimated X-ray beam from the Advanced Photon Source (Argonne National Laboratories). ...
Artículo
Influencia del tensoactivo en la formación y estabilidad física de emulsiones ecológicas concentradas
(Asociación de Químicos e Ingenieros del Instituto Químico de Sarriá, 2018)
El objetivo de esta investigación fue comparar tres tensoactivos ecológicos derivados del aceite de coco para la preparación de emulsiones aceite-en-agua concentradas formuladas con α-pineno. Los tensoactivos utilizados ...