Listando Recerca por materia "54"
Mostrando ítems 1-20 de 33
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15 años de laboratorios virtuales en química (I) ¿Qué son? ¿Para qué sirven?
(Alambique. Vol.76 (2014), p.55-62, 2014)Hace unos 15 años, entre 1997 y 2000, aparecieron un conjunto de entornos de simulación que representan un laboratorio de química. Se recogen en este artículo, el estado actual de siete de estas ... -
A novel fluoro-chromogenic click reaction for the labelling of proteins and nanoparticles with near-IR theranostic agents
(Chemical Communications. Vol.51, n.26 (2015), p.5586-5589, 2014-12)Reaction of porphycene isothiocyanates with primary and secondary amines leads to the formation of thiazolo[4,5-c]porphycenes, with a substantial shift in the absorption and fluorescence spectra. The ... -
Accurate and model-free control function for a single stage transcritical refrigerator cycle
(ACS Omega. Vol.5, n.30 (2020) p.19217-19226, 2020-08)Transcritical cycles are a successful and probed system in engineering practices, particularly in refrigeration. Therefore, their optimization is a critical factor in the design, control, and operation ... -
Activitats contextualitzades en el laboratori virtual
(Educació Química. N.14 (2013), p.48-55, 2013)En aquest article es presenten quatre activitats noves basades en la utilització del laboratori virtual de «The ChemCollective», destinades a l'ensenyament de la química a l'educació secundària, i se'n ... -
Ag(I) ions working as a hole-transfer mediator in photoelectrocatalytic water oxidation on WO3 film
(Nature Communications. Vol. 11, n.1 (2020), 967, 2020-02)Ag(I) is commonly employed as an electron scavenger to promote water oxidation. In addition to its straightforward role as an electron acceptor, Ag(I) can also capture holes to generate the high-valent ... -
An Ultra-Long-Lived Triplet Excited State in Water at Room Temperature: Insights on the Molecular Design of Tridecafullerenes
(Angewandte Chemie International Edition, 2021-05-13)Suitably engineered molecular systems exhibiting triplet excited states with very long lifetimes are important for high-end applications in nonlinear optics, photocatalysis, or biomedicine. We report ... -
Analyzing a virtual-lab based contextualized activity from action logs
(Procedia - Social and Behavioral Sciences 182 (2015) 441-447, 2015-05-13)In this paper, we present and analyze a virtual-lab based activity oriented as an application of the stoichiometry concepts that appear in the first year of the Spanish Bachillerato (16-17 year old). ... -
Análisis simultáneo de aflatoxinas y ocratoxina A en compost por HPLC-MS
(Afinidad. Vol.66, n.546 (2010), p.94-99, 2010-03)Las aflatoxinas y ocratoxina A son las micotoxinas más estudiadas debido a su elevada toxicidad y amplia distribución. En este trabajo se describe un método de análisis simultáneo de las aflatoxinas ... -
Assessing the potential of photosensitizing flavoproteins as tags for correlative microscopy
(Chemical Communications. Vol.52, n.54 (2016), p.8405-8408, 2016-06)Photosensitizing flavoproteins have great potential as tags for correlative light and electron microscopy (CLEM). We examine the photostability of miniSOG mutants and their ability to photooxidize ... -
Breu introducció a la digitalització de la informació química
(Educació Química. N.22 (2016), p.31-37, 2016)La informació química, que tradicionalment s'havia gestionat a través de llibres, paradigmàticament, a través del Chemical Abstracts Service i dels diversos handbooks, ha migrat progressivament a la ... -
Carminic acid linked to silica nanoparticles as pigment/antioxidant bifunctional excipient for pharmaceutical emulsions
(Pharmaceutics. Vol.12, n.4 (2020), 376, 2020-04)The incorporation of pigments and natural polyphenols into inorganic matrices, resulting in a hybrid material that improves the resistance and chemical stability of the pigments and the antioxidant ... -
Conjugated polymers: synthesis and applications in optoelectronics
(Afinidad. Vol.71, n.568 (2014), p.251-262, 2014-10)In the last 50 years the development of conjugated polymers for applications in optoelectronics and energy has attracted great interest because of its use as conductive polymers, in solar cells or ... -
Dual stimuli-responsive polyphosphazene-based molecular gates for controlled drug delivery in lung cancer cells
(RSC Advances. Vol.10, n.46 (2020), p.27305-27314, 2020-07)A switchable silane derived stimuli-responsive bottle-brush polyphosphazene (PPz) was prepared and attached to the surface of mesoporous silica nanoparticles (MSNs). The hybrid polymer with PEG-like ... -
Effective photodynamic inactivation of 26 Escherichia coli strains with different antibiotic susceptibility profiles: a planktonic and biofilm study
(Antibiotics. Vol.9, n.3 (2020), 98, 2020-02)The emergence of multidrug-resistant bacteria is a growing problem and alternative therapies are being sought to effectively address this issue. The aim of this study is to assess a range of Escherichia ... -
Estudi teòric-experimental del comportament interfacial de mescles aquoses d’èster metílic a pressió atmosfèrica
(Afinidad. Vol.77, n.589 (2020), p.4-12, 2020-03)En aquest treball, s’ha completat un estudi teòric-experimental de la densitat i tensió interfacial (IFT) de mescles aquoses d’èster metílic de longitud de cadena variable en equilibri líquid – líquid ... -
Ex-vivo mechanical sealing properties and toxicity of a bioadhesive patch as sealing system for fetal membrane iatrogenic defects
(Scientific Reports. Vol.10, n.1 (2020), 18608, 2020-10)Preterm prelabor rupture of membranes (PPROM) is the most frequent complication of fetal surgery. Strategies to seal the membrane defect created by fetoscopy aiming to reduce the occurrence of PPROM ... -
Exploring benzylic gem-C(sp3)–boron–silicon and boron–tin centers as a synthetic platform
(Chemical Science, 2021-07-02)A stepwise build-up of multi-substituted Csp3 carbon centers is an attractive, conceptually simple, but often synthetically challenging type of disconnection. To this end, this report describes how ... -
Fluid-structure interaction simulations outperform computational fluid dynamics in the description of thoracic aorta haemodynamics and in the differentiation of progressive dilation in Marfan syndrome patients
(Royal Society Open Science. Vol.7, n.2 (2020), 191752, 2020-02)Abnormal fluid dynamics at the ascending aorta may be at the origin of aortic aneurysms. This study was aimed at comparing the performance of computational fluid dynamics (CFD) and fluid–structure ... -
Impact of low stocking densities shrimp farm effluents in water quality of a tropical coastal wetland
(Afinidad. Vol.77, n.589 (2020), p.53-62, 2020-03)The effects of shrimp aquaculture on the water quality of the Jiquilisco Bay (El Salvador) was evaluated for small-scale shrimp farming with low stocking densities (≤ 12 shrimps/m2). Two sites were ... -
Molecular basis of the selective binding of MDMA enantiomers to the Alpha4Beta2 nicotinic receptor subtype: synthesis, pharmacological evaluation and mechanistic studies
(European Journal of Medicinal Chemistry. Vol.81 (2014), p.35-46, 2014-06)The α4β2 nicotinic acetylcholine receptor (nAChR) is a molecular target of 3,4-methylenedioxymethamphetamine (MDMA), a synthetic drug also known as ecstasy, and it modulates the MDMA-mediated reinforcing ...