Institut de Nanociència i Nanotecnologia (IN2UB): Envíos recientes
Mostrando ítems 241-260 de 375
Enhanced diffusion barrier layers for avoiding degradation in SOFCs aged for 14000 h during 2 years
Electrolyte-cathode interfaces are critical regions of solid oxide fuel cells where important degradation phenomena are localized due to cation interdiffusion and reactivity. State-of-the-art barrier layers deposited by ...
Spatial Fluctuations of Loose Spin Coupling in CuMn/Co Multilayers
A detailed investigation of magnetic impurity-mediated interlayer exchange coupling observed in Cu 0.94 Mn 0.06 / Co multilayers using polarized neutron reflectometry and magnetic x-ray techniques is reported. Excellent ...
Acousto-optic deflectors in experimental neuroscience: overview of theory and applications
Cutting-edge methodologies and techniques are required to understand complex neuronal dynamics and pathological mechanisms. Among them, optical tools stand out due to their combination of non-invasiveness, speed, and ...
Fabrication, characterization and performance of low power gas sensors based on (GaxIn1-x)(2)O3 nanowires
Active research in nanostructured materials aims to explore new paths for improving electronic device characteristics. In the field of gas sensors, those based on metal oxide single nanowires exhibit excellent sensitivity ...
Experiments with active and driven synthetic colloids in complex fluids
In this review, we focus on recent experimental research involving active colloidal particles of non-biological origin evolving in non-Newtonian fluids. This includes self-propelling active particles and particles driven ...
Membrane rigidity regulates E. coli proliferation rates
Combining single cell experiments, population dynamics and theoretical methods of membrane mechanics, we put forward that the rate of cell proliferation in E. coli colonies can be regulated by modifers of the mechanical ...
Development of fluorometholone-loaded PLGA nanoparticles for treatment of inflammatory disorders of anterior and posterior segments of the eye
The main objective of this study was the development and optimization of fluorometholone-loaded PLGA nanoparticles for the treatment of inflammatory conditions of the eye. Design of experiments was used to obtain nanoparticles ...
Layer-by-layer modification effects on a nanopore's inner surface of polycarbonate track-etched membranes
The control of the morphology, as well as the physical and chemical properties, of nanopores is a key issue for many applications. Reducing pore size is important in nanopore-based sensing applications as it helps to ...
Stability analysis of flow of active extensile fibers in confined domains
In this article, we study shear flow of active extensile filaments confined in a narrow channel. They behave as nematic liquid crystals that we assumed are governed by the Ericksen-Leslie equations of balance of linear and ...
Vorticity and quantum turbulence in the merging of superfluid helium nanodroplets
We have studied the merging of two identical 4He droplets at zero temperature, caused by their van der Waals mutual attraction. During the early stages of the merging, density structures appear which closely match the ...
Laning, thinning and thickening of sheared colloids in a two-dimensional Taylor-Couette geometry
We investigate the dynamics and rheological properties of a circular colloidal cluster that is continuously sheared by magnetic and optical torques in a two-dimensional (2D) Taylor-Couette geometry. By varying the two ...
Optical Interference Analysis of ZIF-8 Films for Chemical Vapor Detection
Metal–organic frameworks (MOFs) are materials that feature a large surface area with permanent porosity, which is an attractive property for chemical and gas sensing, making them a good candidate for sensor fabrication. ...
Stern-Gerlach experiment with light: separating photons by spin with the method of A. Fresnel
In 1822 A. Fresnel described an experiment to separate a beam of light into its right- and left-circular polarization components using chiral interfaces. Fresnel's experiment combined three crystalline quartz prisms of ...
Aggregation of discoidal particles due to depletion interaction
Depletion interactions between colloids of discoidal shape can induce their self-assembly into columnar aggregates. This is an effect of entropic origin with important implications in a range of colloidal systems, particularly ...
A new reversal mode in exchange coupled antiferromagnetic/ferromagnetic disks: distorted viscous vortex
Magnetic vortices have generated intense interest in recent years due to their unique reversal mecha-nisms, fascinating topological properties, and exciting potential applications. In addition, the exchangecoupling of ...
Micelle carriers based on dendritic macromolecules containing bis-MPA and glycine for antimalarial drug delivery
Biomaterials for antimalarial drug transport still need to be investigated in order to attain nanocarriers that can tackle essential issues related to malaria treatment, e.g. ...
Physicochemical characterization of GBV-C E1 peptides as potential inhibitors of HIV-1 fusion peptide: Interaction with model membranes
Four peptide sequences corresponding to the E1 protein of GBV-C: NCCAPEDIGFCLEGGCLV (P7), APEDIGFCLEGGCLVALG (P8), FCLEGGCLVALGCTICTD (P10) and QAGLAVRPGKSAAQLVGE (P18) were studied as they were capable of interfering with ...
Visible-Light-Driven Room Temperature NO2 Gas Sensor Based on Localized Surface Plasmon Resonance: The Case of Gold Nanoparticle Decorated Zinc Oxide Nanorods (ZnO NRs)
In this work, nitrogen dioxide (NO2) gas sensors based on zinc oxide nanorods (ZnO NRs) decorated with gold nanoparticles (Au NPs) working under visible-light illumination with different wavelengths at room temperature are ...
Low-cost fabrication of printed electronics devices through continuous wave laser-induced forward transfer
Laser induced forward transfer (LIFT) is a direct-writing technique that allows printing inks from a liquid film in a similar way to inkjet printing but with fewer limitations concerning ink viscosity and loading particle ...
Effect of Light and Electrode Polarization on BiVO4 and TiO2 Photoanodes for Glycerol Oxidation
In recent years, there has been a growing interest in the photoelectrochemical oxidation of glycerol to produce high-value products. Most studies have focused solely on the photocatalytic properties of the electrodes, ...
