Institut de Nanociència i Nanotecnologia (IN2UB): Recent submissions
Now showing items 241-260 of 375
Propulsion and hydrodynamic particle transport of magnetically twisted colloidal ribbons
We describe a method to trap, transport and release microscopic particles in a viscous fluid using the hydrodynamic flow field generated by a magnetically propelled colloidal ribbon. The ribbon is composed of ferromagnetic ...
Nanotechnology Approaches in Chronic Wound Healing
Significance: The incidence of chronic wounds is increasing due to our aging population and the augment of people afflicted with diabetes. With the extended knowledge on the biological mechanisms underlying these diseases, ...
Comprehensive Investigation of the Photophysical Properties of Alkynylcoumarin Gold(I) Complexes
Six gold(I) complexes (R3P-Au-Coum) containing three different alkynylcoumarin chromophores (Coum) with different electron-donating and electron-withdrawing characteristics and two different water-soluble phosphanes (PR3 ...
Temperature-modulated synthesis of vertically oriented atomic bilayer graphene nanowalls grown on stainless steel by inductively coupled plasma chemical vapour deposition
It is now clear that growing flat graphene nanostructures from the gas phase on planar substrates is possible. One of the keys to success ¿particularly in producing a very large specific surface in a reduced space¿ is the ...
A low-cost colorimetric HKUST-1 sensor for ppm-level humidity detection
Accurate detection of trace moisture is critical in various industries, from microelectronics to petrochemicals. While electrical humidity sensors are prevalent, optical methods offer superior sensitivity for low relative ...
Optical security verification by synthesizing thin films with unique polarimetric signatures
This letter reports the production and optical polarimetric verification of codes based on thin-film technology for security applications. Because thin-film structures display distinctive polarization signatures, this data ...
Controlled formation of shape structures via electrochemical surface modification of Cu(111)
Electrochemical oxidation-reduction processes on copper electrodes and in the presence of different electrolyte anions have been widely explored for the preparation of tailor-made catalysts. Nevertheless, the effect of the ...
Laser-induced forward transfer: a method for printing functional inks
Laser-induced forward transfer (LIFT) is a direct-writing technique based in the action of a laser to print a small fraction of material from a thin donor layer onto a receiving substrate. Solid donor films have been used ...
Spinning superfluid He-4 nanodroplets
We have studied spinning superfluid He-4 nanodroplets at zero temperature using density functional theory. Due to the irrotational character of the superfluid flow, the shapes of the spinning nanodroplets are very different ...
Synergistic enhancement of Raney-Ni catalyst for methane dry reforming viaelectrochemically e ngineered CoNi co-catalyst
Dry reforming of methane (DRM) offers a promising route to convert biogas into syngas while capturing CO₂.However, the harsh reaction conditions (≥700 ◦C) lead to rapid deactivation of conventional Ni-based catalystsdue ...
Characterizing the Hard and Soft Nanoparticle-Protein Corona with Multilayer Adsorption
Nanoparticles (NPs) in contact with biological fluid adsorb biomolecules into a corona. This corona comprises proteins that strongly bind to the NP (hard corona) and loosely bound proteins (soft corona) that dynamically ...
Solid-state organization of n-type carbazole-based semiconductors for organic thin-film transistors
The development of new organic semiconductors has been mainly led by the search for new π-conjugated cores, but recently the use of flexible side chains is attracting more and more attention to control the molecular packing ...
Excluded Volume Causes Integer and Fractional Plateaus in Colloidal Ratchet Currents
We study the collective transport of paramagnetic colloids driven above a magnetic bubble lattice by an external rotating magnetic eld. We measure a direct ratchet current which rises in integer and fractional steps with ...
The impact of Mn nonstoichiometry on the oxygen mass transport properties of La0.8Sr0.2MnyO3±δ thin films
Oxygen mass transport in perovskite oxides is relevant for a variety of energy and information technologies. In oxide thin films, cation nonstoichiometry is often found but its impact on the oxygen transport properties is ...
Photocatalytic H2 production from ethanol aqueous solution using TiO2 with tungsten carbide nanoparticles as co-catalysts. International Journal of Hydrogen Energy 2020,
The effect of tungsten carbide as co-catalyst in the photocatalytic H2 production from ethanol aqueous solutions (25% v/v) is reported. The photocatalytic H2 production using WC/TiO2 systems, in which tungsten carbide NPs ...
Laser-induced forward transfer: fundamentals and applications
Laser-induced forward transfer (LIFT) is a digital printing technique that uses a pulsed laser beam as the driving force to project material from a donor thin film toward the receiving substrate whereon that material will ...
Vortex properties in the extended supersolid phase of dipolar Bose-Einstein condensates.
We study the properties of singly quantized linear vortices in the supersolid phase of a dipolar Bose-Einstein condensate at zero-temperature modeling 164Dy atoms. The system is extended in the x−y plane and confined by a ...
Cholesterol effect on the specific capacitance of submicrometric DOPC bilayer patches measured by in-liquid scanning dielectric microscopy
The specific capacitance of biological membranes is a key physical parameter in bioelectricity that also provides valuable physicochemical information on composition, phase, or hydration properties. Cholesterol is known ...
2D PEA2SnI4Inkjet-Printed Halide Perovskite LEDs on Rigid and Flexible Substrates
Lead-free PEA2SnI4-based perovskite LEDs are successfully inkjet-printed on rigid and flexible substrates. Red-emitting devices (λmax = 633 nm) exhibit, under ambient conditions, a maximum external quantum efficiency ...
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 ...
