Enginyeria Electrònica i Biomèdica: Enviaments recents
Ara mostrant els elements 181-200 de 781
Formaldehyde sensing mechanism of SnO2 nanowires grown on-chip by sputtering techniques
Tin dioxide nanowires have been grown by thermal oxidation of sputtered thin films by means of a VLS method. A tin sputtered layer catalyzed by gold nanoparticles, acts as material seed for the localized growth of NWs ...
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 ...
Finite Element Analysis of Electrically Excited Quartz Tuning Fork Devices
Quartz Tuning Fork (QTF)-based Scanning Probe Microscopy (SPM) is an important field of research. A suitable model for the QTF is important to obtain quantitative measurements with these devices. Analytical models have the ...
Bioimpedance Technique for Point-of-Care Devices Relying on Disposable Label-Free Sensors – An Anemia Detection Case
In this chapter, the development of a point-of-care device for bio-medical applications has been discussed. Our main objective is to research new electronic solutions for the detection, quantification, and monitoring of ...
PACIFIC: the readout ASIC for the SciFi Tracker of the upgraded LHCb detector
The LHCb detector will be upgraded during the Long Shutdown 2 (LS2) of the LHC in order to cope with higher instantaneous luminosities and will switch to a 40 MHz readout rate using a trigger-less software based system. ...
Quantitative plasma profiling by 1H NMR-based metabolomics: impact of sample treatment
Introduction: There is evidence that sample treatment of blood-based biosamples may affect integral signals in nuclear magnetic resonance-based metabolomics. The presence of macromolecules in plasma/serum samples makes ...
Measurement of the CP Asymmetry in B0→K*0μ+μ− Decays
A measurement of the C P asymmetry in B 0 → K * 0 μ + μ − decays is presented, based on 1.0 fb − 1 of p p collision data recorded by the LHCb experiment during 2011. The measurement is performed in six bins of invariant ...
Measurement of the ratio of branching fractions B(B0→K*0γ)/B(B0s→ϕγ)
The ratio of branching fractions of the radiative B decays B 0 → K * 0 γ and B 0 s → ϕ γ has been measured using 0.37 fb − 1 of p p collisions at a center of mass energy of √ s = 7 TeV , collected by the LHCb ...
3D-Printed UHF-RFID Tag for Embedded Applications
This paper presents the design, manufacture and characterization of a novel 3D passive UHF-RFID tag for embedded applications. The prototype is fabricated using additive manufacturing techniques: 3D printing and copper ...
Combined dielectrophoretic and impedance system for on-chip controlled bacteria concentration: Application to Escherichia coli
The present paper reports a bacteria autonomous controlled concentrator prototype with a user-friendly interface for bench-top applications. It is based on a micro-fluidic lab-on-a-chip and its associated custom instrumentation, ...
Copropagating pump and probe experiments on Si-nc in SiO2 rib waveguides doped with Er: The optical role of non-emitting ions
We present a study that demonstrates the limits for achieving net optical gain in an optimized waveguide where Si nanoclusters in SiO2 codoped with Er3+ are the active material. By cross correlating absorption losses ...
Reliable Characterization of Organic & Pharmaceutical Compounds with High Resolution Monochromated EEL Spectroscopy
Organic and biological compounds (especially those related to the pharmaceutical industry) have always been of great interest for researchers due to their importance for the development of new drugs to diagnose, cure, treat ...
Modificacion de las propiedades opticas y mecanicas de polimeros mediante implantacion ionica
En el presente trabajo se estudian los efectos introducidos por la implantación de Nitrógeno atómico y Silicio sobre probetas de policarbonato empleadas para usos ópticos. Distintas dosis de Nitrógeno y Silicio fueron ...
Multiple Use SiPM Integrated Circuit (MUSIC) for Large Area and High Performance Sensors
The 8-channel Multiple Use Silicon Photo-multiplier (SiPM) Integrated Circuit (MUSIC) Application specific integrated circuit (ASIC) for SiPM anode readout has been designed for applications where large photo-detection ...
3D Visualization of the Iron Oxidation State in FeO/Fe3O4 Core-Shell Nanocubes from Electron Energy Loss Tomography.
Left panel shows the explained variance ratio of the principal component analysis (PCA) decomposition. The six first components, which are enough to explain the whole data set, are plotted in the right panel. Components ...
Més enllà de la innovació docent: de la innovació al coneixement, del coneixement al suport, del suport a la renovació docent a la Universitat de Barcelona.
La implantació dels nous graus com a desenvolupament de les directrius de l'EEES plantegen tot un seguit de reptes per a la comunitat docent en general, i per a la nostra universitat en particular. En aquest article es ...
Area-Efficient Mixed-Signal Time-to-Digital Converter Integration for Time-Resolved Photon Counting
Digital histogram generation for time-resolved measurements with single-photon avalanche diode (SPAD) sensors requires the storage of many timestamp signals. This work presents a mixed-signal time-to-digital converter (TDC) ...
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 ...
Dynamic electrostatic force microscopy in liquid media
We present the implementation of dynamic electrostatic force microscopy in liquid media. This implementation enables the quantitative imaging of local dielectric properties of materials in electrolyte solutions with nanoscale ...
Involvement of Cellular Prion Protein in alpha-Synuclein Transport in Neurons
The cellular prion protein, encoded by the gene Prnp, has been reported to be a receptor of beta-amyloid. Their interaction is mandatory for neurotoxic effects of beta-amyloid oligomers. In this study, we aimed to explore ...
