Institut de Nanociència i Nanotecnologia (IN2UB): Recent submissions
Now showing items 161-180 of 375
Conditions determining the morphology and nanoscale magnetism of Co nanoparticles: Experimental and numerical studies
Co-based nanostructures ranging from core/shell to hollow nanoparticles were prepared by varying the reaction time and the chemical environment during the thermal decomposition of Co2(CO)8. Both structural characterization ...
Parallel illumination for depletion microscopy throughacousto-optic spatial light modulation
State-of-the-art super-resolution microscopy techniques, including Stimulated Emission Depletion (STED), Reversible Saturable Optical Fluorescence Transitions (RESOLFT), and Switching Laser Mode (SLAM) microscopies, implement ...
Extending calibration-free force measurements to optically-trapped rod-shaped samples
Optical trapping has become an optimal choice for biological research at the microscale due to its non-invasive performance and accessibility for quantitative studies, especially on the forces involved in biological ...
Caloric Effects Induced by Uniform and Non-uniform Stress in Shape-Memory Materials
A Ginzburg–Landau model is developed that is adequate to describe a square-to-rectangle martensitic transition with associated shape-memory and superelastic properties. Using this model we study caloric effects in the ...
Probing active nematics with in situ microfabricated elastic inclusions
In this work, we report a direct measurement of the forces exerted by a tubulin/kinesin active nematic gel as well as its complete rheological characterization, including the quantification of its shear viscosity, η, and ...
Breakup of quantum liquid filaments
We investigate how the Rayleigh-Plateau instability of a filament made of a 41 K - 87 Rb self-bound mixture may lead to an array of identical quantum droplets, with typical breaking times which are shorter than the lifetime ...
Structure and dynamics of nanoconfined water and aqueous solutions
This review is devoted to discussing recent progress on the structure, thermodynamic, reactivity, and dynamics of water and aqueous systems confined within different types of nanopores, synthetic and biological. Currently, ...
Angular momentum in rotating superfluid droplets
The angular momentum of rotating superfluid droplets originates from quantized vortices and capillary waves, the interplay between which remains to be uncovered. Here, the rotation of isolated submicrometer superfluid 4He ...
Polymorphic chiral squaraine crystallites in textured thin films
An enantiomerically pure (R)-2-methylpyrrolidine-based anilino squaraine crystallizes in two chiral polymorphs adopting a monoclinicC2 and an orthorhombic P212121structure, respectively. By various thin-film preparation ...
Suspended Planar-Array Chips for Molecular Multiplexing at the Microscale
Suspended planar-array (SPA) chips embody millions of individual miniaturized arrays to work in extremely small volumes. Here, the basis of a robust methodology for the fabrication of SPA silicon chips with on-demand ...
Review of the current landscape of the potential of nanotechnology for future malaria diagnosis, treatment, and vaccination strategies
Malaria eradication has for decades been on the global health agenda, but the causative agents of the disease, several species of the protist parasite Plasmodium, have evolved mechanisms to evade vaccine-induced immunity ...
Multimodal fluorescence microscope with fast adaptive polarimetry
Polarized light microscopy is a widely used technique to observe specimens that are optically anisotropic, or birefringent. It has a broad applicability in the study of minerals, soft materials such as polymers, complex ...
Formation of metastable phases by spinodal decomposition
Metastable phases may be spontaneously formed from other metastable phases through nucleation. Here we demonstrate the spontaneous formation of a metastable phase from an unstable equilibrium by spinodal decomposition, ...
Geometrical Phase Optical Components: Measuring Geometric Phase without Interferometry
Optical components that are based on Pancharatnam-Berry phase feature a polarization-dependent diffraction that can be used to fabricate lenses and gratings with unique properties. In recent years, the great progress made ...
Tetrahydrobenzo[h][1,6]naphthyridine-6-chlorotacrine hybrids as a new family of anti-Alzheimer agents targeting beta-amyloid, tau, and cholinesterase pathologies
Optimization of an essentially inactive 3,4-dihydro-2H-pyrano[3,2-c]quinoline carboxylic ester derivative as acetylcholinesterase (AChE) peripheral anionic site (PAS)-binding motif by double O → NH bioisosteric replacement, ...
Blood rheological characterization of β-thalassemia trait and iron deficiency using front microrheometry
The purpose of this work is to develop a hematocrit-independent method for the detection of beta-thalassemia trait (β-TT) and iron deficiency anemia (IDA), through the rheological characterization of whole blood samples ...
Electrochemical POC device for fast malaria quantitative diagnosis in whole blood by using magnetic beads, Poly-HRP and microfluidic paper electrodes
© 2019 Elsevier B.V. Malaria, a parasitic infection caused by Plasmodium parasites and transmitted through the bite of infected female Anopheles mosquitos, is one of the main causes of mortality in many developing countries. ...
Development of Chitosan/Silver Sulfadiazine/Zeolite composite flms for wound dressing
Biopolymeric films with silver sulfadiazine (AgSD) are proposed as an alternative to the occlusive AgSD-containing creams and gauzes, which are commonly used in the treatment of conventional burns. While the recognized ...
Electrodeposited BiVO4-based photoanodes for an energy-efficient photo-assisted CO2-to-formate conversion
The development of efficient photoanodes that reduce external energy requirements for the electrochemical conversion of CO2 to formate is essential for the future implementation of this technology. In this work, we explore ...
