Enginyeria Electrònica i Biomèdica: Recent submissions
Now showing items 361-380 of 781
Avoiding sensor blindness in Geiger mode avalanche photodiode arrays fabricated in a conventional CMOS process
The need to move forward in the knowledge of the subatomic world has stimulated the development of new particle colliders. However, the objectives of the next generation of colliders sets unprecedented challenges to the ...
Modified Bis-pyrimidine Clamps for Triplex Formation and Their Usein SARS-CoV‑2 Detection
The formation of nucleic acid triple helices (“triplexes”) is an area of great interest due to their potential role in thenatural and artificial regulation of gene expression or for use in analytical, diagnostic, or synthetic ...
Double stent-retriever as the first-line approach in mechanical thrombectomy: a randomized in vitro evaluation
Background A repeated number of passes during mechanical thrombectomy leads to worse clinical outcomes in acute ischemic stroke. Initial experiences with the simultaneous double stent-retriever (double-SR) technique as the ...
Intense green-yellow electroluminescence from Tb+-implanted silicon-rich silicon nitride/oxide light emitting devices
High optical power density of 0.5 mW/cm2, external quantum efficiency of 0.1%, and population inversion of 7% are reported from Tb+-implanted silicon-rich silicon nitride/oxide light emitting devices. Electrical and ...
Correlation between charge transport and electroluminescence properties of Si-rich oxide/nitride/oxide-based light emitting capacitors.
The electrical and electroluminescence (EL) properties at room and high temperatures of oxide/ nitride/oxide (ONO)-based light emitting capacitors are studied. The ONO multidielectric layer is enriched with silicon by means ...
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 ...
Catheter design primer for neurointerventionalists
Neurovascular catheter technology has rapidly evolved over the past decade. While performance characteristics are well known to the practitioner, the design features of these new-generation catheters and their implications ...
Suboptimal filtering and nonlinear time scale transformation for the analysis of multiexponential decays
Multiexponential decays may contain time-constants differing in several orders of magnitudes. In such cases, uniform sampling results in very long records featuring a high degree of oversampling at the final part of the ...
Crystal growth and spectroscopic characterization of Tm3+-doped KYb(WO4)2 single crystals.
In this paper we present the crystal growth and optical characterization of thulium-doped KYb(WO4)2 ~hereafter KYbW!. We grew thulium-doped KYbW monoclinic single crystals with optimal crystalline quality by the ...
Enhanced low field magnetoresistive response in (La2/3Sr1/3MnO3)x/(CeO2)1-x composite thick films prepared by screen printing
The magnetoresistance and magnetization of (La2/3Sr1/3MnO3)x(LSMO)/(CeO2)1−x (0.64⩽x⩽1) composite thick films have been studied as a function of the manganite concentration. It is found that for high LSMO content, when the ...
Self-heating effects in large arrangements of randomly oriented carbon nanofibers: Application to gas sensors
Herein, we prove that self-heating effects occur in sensor films made of randomly oriented nanoparticles (electro-sprayed, drop-casted and paint-brushed films of carbon nanofibers). A 2-point calibration method, reliable ...
Gated Geiger mode avalanche photodiode pixels with integrated readout electronics for low noise photon detection
Avalanche photodiodes operated in the Geiger mode offer a high intrinsic gain as well as an excellent timing accuracy. These qualities make the sensor specially suitable for those applications where detectors with high ...
Teragnosis in vivo: Innovación nanomédica fomentada por la convergencia de tecnologías emergentes
El creciente desarrollo y la mejora en cuanto a innovación de dispositivos basados en la convergencia de tecnologías emergentes ha dado lugar a un uso cada vez mayor de los nanosensores en la comunidad biomédica. Sin ...
Sensor-integrated microfluidic approaches for liquid biopsies applications in early detection of cancer
Cancer represents one of the conditions with the most causes of death worldwide. Common methods for its diagnosis are based on tissue biopsies the extraction of tissue from the primary tumor, which is used for its histological ...
Spatial mapping of exciton lifetimes in single ZnO nanowires
We investigate the spatial dependence of the exciton lifetimes in single ZnO nanowires. We have found that the free exciton and bound exciton lifetimes exhibit a maximum at the center of nanowires, while they decrease by ...
Sensitivity of the Cherenkov Telescope Array for probing cosmology and fundamental physics with gamma-ray propagation
The Cherenkov Telescope Array (CTA), the new-generation ground-based observatory for gamma-ray astronomy, provides unique capabilities to address significant open questions in astrophysics, cosmology, and fundamental ...
Structural and optical properties of high quality zinc-blende/wurtzite GaAs nanowire heterostructures
The structural and optical properties of three different kinds of GaAs nanowires with 100% zinc-blende structure and with an average of 30% and 70% wurtzite are presented. A variety of shorter and longer segments of ...
Characterization of the electrical properties of individual tin-oxide nanowires contacted to platinum nanoelectrodes
A simple and useful experimental alternative to field-effect transistors for measuring electrical properties free electron concentration nd, electrical mobility , and conductivity in individual nanowires has been developed. ...
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 ...
