A5079304143- Graphene research and applications
- Molecular Junctions and Nanostructures
- Electron and X-Ray Spectroscopy Techniques
- Surface Chemistry and Catalysis
- Advanced Chemical Physics Studies
- Metal and Thin Film Mechanics
- Titanium Alloys Microstructure and Properties
- Fullerene Chemistry and Applications
- Electronic and Structural Properties of Oxides
- Surface and Thin Film Phenomena
- Corrosion Behavior and Inhibition
- Diamond and Carbon-based Materials Research
- X-ray Spectroscopy and Fluorescence Analysis
- Hydrogen embrittlement and corrosion behaviors in metals
- Catalytic Processes in Materials Science
- Semiconductor materials and devices
- High-Temperature Coating Behaviors
- Electrochemical Analysis and Applications
- Electrocatalysts for Energy Conversion
- Intermetallics and Advanced Alloy Properties
- Atomic and Molecular Physics
- Machine Learning in Materials Science
- Electrochemical sensors and biosensors
- Orthopaedic implants and arthroplasty
- Supercapacitor Materials and Fabrication
Instituto de Ciencia de Materiales de Madrid
2014-2024
Clínica Sagrada Esperança
2024
Consejo Superior de Investigaciones Científicas
2006-2023
Feinstein Institute for Medical Research
2020-2021
Universidad Complutense de Madrid
2021
Instituto de Ciencia de Materiales de Sevilla
2014-2020
Science Factory
2017-2019
Abengoa (Spain)
2017
University of California, Riverside
2012
Umicore (Germany)
2011
We present an overview of the main techniques for production and processing graphene related materials (GRMs), as well key characterization procedures. adopt a 'hands-on' approach, providing practical details procedures derived from literature authors' experience, in order to enable reader reproduce results.
The differences between L3 and L2 edges of 3d 4d transition metal complexes compounds in octahedral symmetry are discussed. main origin these the multiplet effects due to coupling 2p core wave function valence functions. spin–orbit is a second difference. For systems dominate all other interactions edge completely mixed reordered. hole large separated by about 100 eV with ratio close 2:1. originate from weight transfer t2g eg peaks effect. This 25% for 5% edge, which implies that comparison...
Abstract Graphene functionalization with organics is expected to be an important step for the development of graphene-based materials tailored electronic properties. However, its high chemical inertness makes difficult a controlled and selective covalent functionalization, most works performed up date report electrostatic molecular adsorption or unruly functionalization. We show hereafter mechanism promoting highly specific bonding any amino-terminated molecule description operating...
The activation and subsequent covalent coupling of polycyclic aromatic hydrocarbons (PAHs) are great interest in fields like chemistry, energy, biology, or health, among others. However, this is not a trivial process. So far, it based on the use catalysts that drive increase efficiency reaction. Here, we report an unprecedented method which dehydrogenation thermally activated presence atomic hydrogen surface. This mechanism, requires superhydrogenation PAHs, has been characterized by...
Abstract Vagus nerve stimulation (VNS) is a bioelectronic therapy for disorders of the brain and peripheral organs, tool to study physiology autonomic circuits. Selective activation afferent or efferent vagal fibers can maximize efficacy minimize off-target effects VNS. Anodal block (ABL) has been used achieve directional fiber in stimulation. However, evidence VNS with ABL scarce inconsistent, it unknown whether permits respect functional Through series vagotomies, we established...
Biosensors based on graphene field-effect transistors have become a promising tool for detecting broad range of analytes. However, their performance is substantially affected by the functionalization protocol. In this work, we use controlled in-vacuum physical method covalent to construct ultrasensitive aptamer-based biosensors (aptasensors) able detect hepatitis C virus core protein. These devices are highly specific and robust, achieving attomolar detection viral protein in human blood...
Surface-assisted cyclodehydrogenation and dehydrogenative polymerization of polycyclic (hetero)aromatic hydrocarbons (PAH) are among the most important strategies for bottom-up assembly new nanostructures from their molecular building blocks. Although diverse compounds have been formed in recent years using this methodology, a limited knowledge on machinery operating at nanoscale has prevented rational control reaction outcome. We show that strength PAH-substrate interaction rules...
The hydrogenation of ethylene on Pt(111) single-crystal surfaces was studied by combining measurements the kinetics reaction using mass spectrometry detection with simultaneous characterization species present surface reflection–absorption infrared spectroscopy. measured us matches past reports same system, zero- and first-order dependence partial pressures hydrogen, respectively, extensive H–D exchange if D2 is used instead H2. takes place in presence an alkylidyne layer, which forms...
Combining STM, LEED, and density functional theory, we determine the atomic surface structure of rutile TiO2 (110)-(1 x 2): nonstoichiometric Ti2O3 stripes along [001] direction. LEED patterns are sharp free streaks, while STM images show monatomic steps, wide terraces, no cross-links. At room temperature, atoms in group have large amplitudes vibration. The long quasi-1D chains display metallic character, interaction between them, cannot couple to bulk or states gap region, forming good wires.
We have studied the growth of pentacene molecules on unreconstructed and stoichiometric surface TiO2(110). At variance with its characteristic homeotropic mode, is found to be physisorbed this dielectric substrate long molecular axis oriented parallel aligned along [001] direction. Pentacene couple side-by-side into stripes running [11̅0] direction, where overlayer preserves lattice periodicity (∼6.5 Å). In opposite head-to-head repulsion drives ordering stripes, whose spacing simply depends...
While high-quality defect-free epitaxial graphene can be efficiently grown on metal substrates, strong interaction with the supporting quenches its outstanding properties. Thus, protocols to transfer insulating substrates are obligatory, and these often severely impair properties by introduction of structural or chemical defects. Here we describe a simple easily scalable general methodology structurally electronically decouple from Pt(111) Ir(111) surfaces. A multi-technique characterization...
Abstract Objective. Vagus nerve stimulation (VNS) is typically delivered at increasing stimulus intensity until a neurological or physiological response observed (‘threshold’) for dose calibration, preclinically and therapeutically. Factors affecting VNS thresholds have not been studied systematically. In rodent model of we measured neural responses to intensity, determined examined the effect implant- anesthesia-related factors on thresholds. Approach. acute chronic vagus implants (45 20...
One of the main challenges to expand use titanium dioxide (titania) as a photocatalyst is related its large band gap energy and lack an atomic scale description reduction mechanisms that may tailor photocatalytic properties. We show rutile TiO2 single crystals annealed in presence hydrogen experience strong structural rearrangement, yielding material exhibits enhanced light absorption, which extends from ultraviolet near-infrared (NIR) spectral range, improved photoelectrocatalytic...
This work studies the chemical composition of copper tarnish products formed at 40, 60, and 80% relative humidity (RH) in an uncontaminated environment, for 21 days experimentation 30°C. The experimental method used was X-ray photoelectron spectroscopy (XPS) conjunction with -ion sputtering. main compounds found were cuprite hydroxide Differences observed between RH. Copper specimens exposed to 40% RH show thickest layers, while thinnest correspond specimens. layer specimen is constituted...