Listar Departament: Química Física i Analítica por título
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Seasonal Trends and Tissue Distribution of Organochlorine Pollutants in Wild and Farmed Gilthead Sea Bream ( Sparus aurata ) from the Western Mediterranean Sea and Their Relationship with Environmental and Biological Factors
Springer-Verlag (2009)Seasonal trends and tissue distribution of organochlorine pesticides (OCPs) and polychlorinated biphenyls (PCBs) in gilthead sea bream (Sparus aurata) samples from the Western Mediterranean were investigated. Hexane extracts ... -
Selective Dehydrogenation of Formic Acid Catalyzed by Air-Stable Cuboidal PN Molybdenum Sulfide Clusters
Wiley (2023-09-13)Formic acid is considered as a promising hydrogen storage material in the context of a green hydrogen economy. In this work, we present a series of aminophosphino and imidazolylamino Mo3S4 cuboidal clusters which are active ... -
Selective oxidation of alkyl and aryl glyceryl monoethers catalysed by an engineered and immobilised glycerol dehydrogenase
Royal Society of Chemistry (2020-12-07)Enzymes acting over glyceryl ethers are scarce in living cells, and consequently biocatalytic transformations of these molecules are rare despite their interest for industrial chemistry. In this work, we have engineered ... -
Selective reductive amination of aldehydes from nitro compounds catalyzed by molybdenum sulfide clusters
Royal Society of Chemistry (2017-07)Secondary amines are selectively obtained from low value starting materials using hydrogen and a non-noble metal-based catalyst. The reductive amination of aldehydes from nitroarenes or nitroalkanes is efficiently catalyzed ... -
Selective synthesis of triangular cluster oxido-sulfidocomplexes of Mo and W: High yield preparations of [Mo3O2S2(H2O)9]4+, [W3O2S2(H2O)9]4+, [W2MoO2S2(H2O)9]4+ and their derivatization
Elsevier (2010)Reaction of [Mo2O2(μ-S)2(H2O)6]2+ with Mo(CO)6 or metallic Mo under hydrothermal conditions (140 °C, 4 M HCl) gives oxido-sulfido cluster aqua complex [Mo3(μ3-S)(μ-O)2(μ-S)(H2O)9]4+ (1). Similarly, [W3(μ3-S)(μ-O)2(μ-S)(H2O)9]4+ ... -
Selective Synthesis of α-, β-, and γ-Ag2WO4 Polymorphs: Promising Platforms for Photocatalytic and Antibacterial Materials
American Chemical Society (2021-01-18)Silver tungstate (Ag2WO4) shows structural polymorphism with different crystalline phases, namely, orthorhombic, hexagonal, and cubic structures that are commonly known as α, β, and γ, respectively. In this work, these ... -
Shell filling and paramagnetism in few-electron colloidal nanoplatelets
American Physical Society (2022-08-05)Colloidal semiconductor nanoplatelets are excellent optical emitters, which combine a quasi-2D structure with strong in-plane Coulomb interactions. Here, we go beyond the photoexcitation regime and investigate theoretically ... -
Silver Molybdate and Silver Tungstate Nanocomposites with Enhanced Photoluminescence
InTech (2014)Silver molybdate (Ag2MoO4) and silver tungstate (Ag2WO4) nanomaterials were prepared using two complementary methods, microwave assisted hydrothermal synthesis (MAH) (pH 7, 140 degrees C) and co-precipitation (pH 4, 70 ... -
Simple correlated wave-function for excitons in 0D, quasi-1D and quasi-2D quantum dots
Springer Berlin Heidelberg (2017-07)We propose correlated yet extremely simple single-parameter-dependent wave-function with a Slater-type correlation factor, to describe excitons in 0D, quasi-1D and quasi-2D semiconductor quantum dots. We provide closed-form ... -
Simulating Enzyme Catalysis
SBE - Sociedad de Biofísica de España (2016-09)Chemistry is about transformations between compounds as the result of forming and breaking bonds between their atoms. A detailed knowledge of these processes should open the door to one of the most desired goals ... -
Simultaneous detection of hazardous skin whitening agents in Indian cosmetic products using a green chromatographic technique
Elsevier (2021-10-22)The present work mainly highlights the simultaneous detection of four skin whitening agents i.e. hydroquinone (HQ), resorcinol (RS), catechol (CC) and 3,3′-dichlorobenzidine (DCB) in facial creams and body lotion. Among ... -
Simultaneous separation and determination of quinolones in pharmaceuticals by micellar liquid chromatography
Taylor & Francis (2010)A rapid and simple liquid chromatographic procedure using micellar mobile phases is reported for the separation and determination of four quinolones (pipemidic acid, levofloxacin, norfloxacin and moxifloxacin) in ... -
Simultaneous ultra-high-pressure liquid chromatography-tandem mass spectrometry determination of amphetamine and amphetamine-like stimulants, cocaine and its metabolites, and a cannabis metabolite in surface water and urban wastewater
Elsevier (2009)An ultra-high-pressure liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS) method has been developed for the simultaneous quantification and confirmation of 11 basic/acidic illicit drugs and relevant metabolites ... -
Singlet-triplet gaps in large multireference systems: spin-flip-driven alternatives for bioinorganic modelling
American Institute of Physics (2007-07)The proper description of low-spin states of open-shell systems, which are commonly encountered in the field of bioinorganic chemistry, rigorously requires using multireference ab initio methodologies. Such approaches are ... -
SiO2-Ag Composite as a Highly Virucidal Material: A Roadmap that Rapidly Eliminates SARS-CoV-2
MDPI (2021-03-04)COVID-19, as the cause of a global pandemic, has resulted in lockdowns all over the world since early 2020. Both theoretical and experimental efforts are being made to find an effective treatment to suppress the virus, ... -
Site specific ligand substitution in cubane-type Mo3FeS44+ clusters: Kinetics and mechanism of reaction and isolation of mixed ligand Cl/SPh complexes
Royal Society of Chemistry (2010)The synthesis, crystal structure and solution characterization of the cubane-type [Mo3(FeCl)S4(dmpe)3Cl3] (1) (dmpe = 1,2-bis(dimethylphophane-ethane)) cluster are reported and the ligand substitution processes of chloride ... -
Slow Motion Analysis of Repetitive Tapping (SMART) Test: Measuring Bradykinesia in Recently Diagnosed Parkinson’s Disease and Idiopathic Anosmia
IOS Press (2021-10-12)Background:Bradykinesia is the defining motor feature of Parkinson’s disease (PD). There are limitations to its assessment using standard clinical rating scales, especially in the early stages of PD when a floor effect may ... -
SnO2 nanocrystals synthesized by microwave-assisted hydrothermal method: towards a relationship between structural and optical properties
Springer Netherlands (2012-02)The exploration of novel synthetic methodologies that control both size and shape of functional nanostructure opens new avenues for the functional application of nanomaterials. Here, we report a new and versatile approach ... -
Sonochemical degradation of antibiotics from representative classes-Considerations on structural effects, initial transformation products, antimicrobial activity and matrix
Elsevier (2019)In this work, the sonochemical treatment (at 354 kHz and 88 W L-120 ) of six relevant antibiotics belonging to fluoroquinolones (ciprofloxacin and norfloxacin), penicillins (oxacillin and cloxacillin) and cephalosporins ... -
Spatial and temporal assessment of crack cocaine use in 13 European cities through wastewater-based epidemiology
Elsevier (2022-07-25)Already in early 2000s, concerns have been growing in the EU about increasing use of cocaine and it is estimated that below 1% of the population administer the drug by smoking crack cocaine. New available data suggests ...