Browsing Departament: Física by Title
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SARS-CoV-2 accessory protein 7b forms homotetramers in detergent
BioMed Central (BMC) (2022-11)A global pandemic is underway caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The SARS-CoV-2 genome, like its predecessor SARS-CoV, contains open reading frames that encode accessory proteins ... -
Sb2S3-Sensitized Photoelectrochemical Cells: Open Circuit Voltage Enhancement through the Introduction of Poly-3-hexylthiophene Interlayer
American Chemical Society (2012)The Sb2S3-sensitized photoelectrochemical cells (Sb2S3–SPECs) in cobalt electrolyte were fabricated by depositing Sb2S3 on the macroporous TiO2 nanorods electrodes and consecutively spin-coating P3HT (Poly-3-hexylthiophene) ... -
Scaling Behavior of Ionic Transport in Membrane Nanochannels
American Chemical Society (2018)Ionic conductance in membrane channels exhibits a power-law dependence on electrolyte concentration (G ∼ c α ). The many scaling exponents, α, reported in the literature usually require detailed interpretations ... -
Science in the Age of Digital Networking
American Chemical Society (2015-08)Today, the world is moving fast, but we do not know exactly where this leads yet. As the economy of knowledge inevitably extends its tentacles on the realm of science, what are we –scientists- going to do? So far, an ... -
Segmental dynamics in poly(ε-caprolactone)/poly(L-lactide) copolymer networks
Wiley (2009)Poly(ε-caprolactone) (PCL) and poly(lactic acid) (PLA) networks were prepared from macromonomer diols functionalized with methacrylic anhydride, which allows one to get self-crosslinkable polymers. Besides, both macromonomers ... -
Selective contacts drive charge extraction in quantum dot solids via asymmetry in carrier transfer kinetics
Nature Publishing Group (2013)Colloidal quantum dot solar cells achieve spectrally selective optical absorption in a thin layer of solution-processed, size-effect tuned, nanoparticles. The best devices built to date have relied heavily on drift-based ... -
Selective Growth of Layered Perovskites for Stable and Efficient Photovoltaics
Royal Society of Chemistry (2018-11)Perovskite solar cells (PSCs) are promising alternatives toward clean energy because of their high-power conversion efficiency (PCE) and low materials and processing cost. However, their poor stability under operation ... -
Selectivity of Protein Ion Channels and the Role of Buried Charges. Analytical Solutions, Numerical Calculations, and MD Simulations
American Chemical Society (2015-06)The preference of large protein ion channels for cations or anions is mainly determined by the electrostatic interactions of mobile ions with charged residues of the protein. Here we discuss the widely spread paradigm that ... -
Self-supported ultra-active NiO-based electrocatalysts for the oxygen evolution reaction by solution combustion
Royal Society of Chemistry (2021-04-20)The oxygen evolution reaction (OER) is a fundamental process to develop a technology that can drive energy transition towards renewable and sustainable fuels. Nevertheless, efficient and straightforward methodologies to ... -
Series resistance in organic bulk-heterojunction solar devices: Modulating carrier transport with fullerene electron traps
Elsevier (2012)Series resistance is one of the key parameters affecting the performance of organic photovoltaic devices. Several electronic mechanisms arising from different structures within the solar cell can contribute to increasing ... -
Severe acute respiratory syndrome coronavirus E protein transports calcium ions and activates the NLRP3 inflammasome
Elsevier (2015-11)Severe acute respiratory syndrome coronavirus (SARS-CoV) envelope (E) protein is a viroporin involved in virulence. E protein ion channel (IC) activity is specifically correlated with enhanced pulmonary damage, edema ... -
Severe Acute Respiratory Syndrome Coronavirus Envelope Protein Ion Channel Activity Promotes Virus Fitness and Pathogenesis
Public Library of Science (2014)Deletion of Severe Acute Respiratory Syndrome Coronavirus (SARS-CoV) envelope (E) gene attenuates the virus. E gene encodes a small multifunctional protein that possesses ion channel (IC) activity, an important function ... -
Shelf Life Degradation of Bulk Heterojunction Solar Cells: Intrinsic Evolution of Charge Transfer Complex
Wiley (2015)Achievement of long-term stability of organic photovoltaics is currently one of the major topics for this technology to reach maturity. Most of the techniques used to reveal degradation pathways are destructive and/or do ... -
Simultaneous broadband microwave downconversion and programmable complex filtering by optical frequency comb shaping
Optical Society of America (2012)High-repetition-rate optical frequency combs can act as broadband photonic mixers and downconvert a microwave signal to an intermediate frequency (IF) band so that it becomes accessible with high-speed electronics. In this ... -
Simultaneous determination of carrier lifetime and electron density-of-states in P3HT:PCBM organic solar cells under illumination by impedance spectroscopy
Elsevier (2010)We report new insights into recombination kinetics in poly(3-hexylthiophene):methanofullerene (P3HT:PCBM) bulk heterojunction (BHJ) solar cells, based on simultaneous determination of the density of states (DOS), internal ... -
Single-molecule conformational dynamics of viroporin ion channels regulated by lipid-protein interactions
Elsevier (2020-02)Classic swine fever is a highly contagious and often fatal viral disease that is caused by the classical swine fever virus (CSFV). Protein p7 of CFSV is a prototype of viroporin, a family of small, highly hydrophobic ... -
Single-pixel imaging through non-homogeneous turbid media with adaptive illumination
Optica Publishing Group (2024-03-29)The presence of scattering media limits the quality of images obtained by optical systems. Single-pixel imaging techniques based on structured illumination are highly tolerant to the presence of scattering between the ... -
Slow dynamic processes in lead halide perovskite solar cells. Characteristic times and hysteresis
American Chemical Society (2014-06)Characteristic times of perovskite solar cells (PSCs) have been measured by different techniques: transient photovoltage decay, transient photoluminescence, and impedance spectroscopy. A slow dynamic process is detected ... -
Solar Fuels. Photocatalytic Hydrogen Generation
American Chemical Society (2013)The necessity for developing clean energy technology has led to the surge in renewable energy research. A major effort is in discovering new approaches for producing transportable fuels. Hydrogen, which possesses the highest ...