Enginyeria Química i Química Analítica: Envíos recientes
Mostrando ítems 301-320 de 791
Study of alkaloid berberine and its interaction with the human telomeric i-motif DNA structure
The alkaloid berberine presents many biological activities related to its potential to bind DNA structures, such as duplex or G-quadruplex. Recently, it has been proposed that berberine may interact with i-motif structures ...
Comparison of three analytical methods for the determination of quinolones in pig muscle samples
This work presents a comparison between three analytical methods developed for the simultaneous determination of eight quinolones regulated by the European Union (marbofloxacin, ciprofloxacin, danofloxacin, enrofloxacin, ...
Respondiendo a los Intereses de la Sociedad Actual desde la Química Analítica: Sostenibilidad y Autenticación
El grupo de Fluorescencia del Departamento de Ingeniería Química y Química Analítica de la Universitat de Barcelona está constituido por los profesores José Luis Beltrán, José Francisco García, Mercè Granados, Óscar Núñez ...
Alkaloid escholidine and its interaction with DNA structures
Berberine, the most known quaternary protoberberine alkaloid (QPA), has been reported to inhibit the SIK3 protein connected with breast cancer. Berberine also appears to reduce the bcl-2 and XIAP expression-proteins ...
Stabilization of metal and metalloids from contaminated soils using magnesia-based tundish deskulling waste from continuous steel casting
This study presents a groundbreaking exploration into the potential use of refractory tundish deskulling waste (TUN), a magnesium oxide-based by-product from continuous steel casting, as a stabilizing agent for remediating ...
Impact of functional group types in ion exchange resins on rare earth element recovery from treated acid mine waters
Ion-exchange (IX) resins incorporating single functional groups (sulfonic or amino-phosphonic) and two functional groups (sulfonic and phosphonic) were evaluated for selective recovery of Rare Earth Elements (REEs) from ...
Non-targeted high-performance liquid chromatography with ultraviolet and fluorescence detection fingerprinting for the classification, authentication, and fraud quantitation of instant coffee and chicory by multivariate chemometric methods
Non-targeted strategies based on high-performance liquid chromatography with ultraviolet detection (HPLC-UV) and fluorescence detection (HPLC-FLD) fingerprints were evaluated to accomplish the classification and authentication ...
Chasing the elusive hold-up time from an LFER approach
A homologous series approach derived from the Abraham's solvation model was developed for the determination of hold-up times. Firstly, it was tested from reversed-phase liquid chromatography data obtained in the literature ...
Priority pesticides abatement by advanced water technologies: the case of acetamiprid removal by ozonation
With the aim of exploring treatment alternatives for priority insecticide acetamiprid (ACMP) abatement, the removal of this compound from water by ozonation was studied for the first time, paying special attention to the ...
Assessment of paprika geographical origin fraud by high-performance liquid chromatography with fluorescence detection (HPLC-FLD) fingerprinting
Paprika production under the protected designation of origin (PDO) standardized procedures leads to more quality products. However, it is also related to higher retail prices, making them susceptible to adulteration with ...
Evaluation of ion mobility for the separation of glycoconjugate isomers due to different types of sialic acid linkage, at the intact glycoprotein, glycopeptide and glycan level
The study of protein glycosylation can be regarded as an intricate but very important task, making glycomics one of the most challenging and interesting, albeit under-researched, type of 'omics' science. Complexity escalates ...
Occurrence of arsenic species in algae and freshwater plants of an extreme arid region in northern Chile, the Loa River Basin
This study reports data on arsenic speciation in two green algae species (Cladophora sp. and Chara sp.) and in five aquatic plants (Azolla sp., Myriophyllum aquaticum, Phylloscirpus cf. desserticola, Potamogeton pectinatus, ...
Enrichment of histidine containing peptides by on-line immobilized metal affinity solid-phase extraction capillary electrophoresis-mass spectrometry
The analysis and detection of targeted peptides has received due attention in many fields of proteomics research, such as discovery of biomarkers. In this regard, capillary electrophoresis-mass spectrometry (CE-MS) is ...
Kernelizing: A way to increase accuracy in trilinear decomposition analysis of multiexponential signals
The unmixing of multiexponential decay signals into monoexponential components using soft modelling approaches is a challenging task due to the strong correlation and complete window overlap of the profiles. To solve this ...
Illuminated manuscript analysis methodology using MA-XRF and NMF: Application on the Liber Feudorum Maior
The determination of the composition of illuminated manuscripts' components is an important tool for the better understanding of their history, their origin and the procedures carried out for their elaboration, providing ...
1-Butanol adsorption in poly(styrene-divinylbenzene) ion exchange resins for catalysis
The swelling behaviour of poly(styrene-co-divinylbenzene), P(S-DVB), ion exchange resins in 1-butanol (BuOH) has been studied by means of atomistic classical molecular dynamics simulations (MD). The topological characteristics ...
Viral uncoating is directional: exit of the genomic RNA in a common cold virus starts with the poly-(A) tail at the 3′-end
Upon infection, many RNA viruses reorganize their capsid for release of the genome into the host cell cytosol for replication. Often, this process is triggered by receptor binding and/or by the acidic environment in ...
G-quadruplex binding properties of a potent PARP-1 inhibitor derived from 7-azaindole-1-carboxamide
oly ADP-ribose polymerases (PARP) are key proteins involved in DNA repair, maintenance as well as regulation of programmed cell death. For this reason they are important therapeutic targets for cancer treatment. Recent ...
Setup and validation of shake-flask procedures for the determinationof partition coefficients (log D) from low drug amounts
Several procedures based on the shake-flask method and designed to require a minimum amount of drug for octanol-water partition coefficient determination have been established and developed. The procedures have been validated ...
Using a batch test to derive sorption data of fluoroquinolone antibiotics in humic acids
Fluoroquinolone antibiotics (FQs) are of concern due to their disrupting effects on environmental bacterial communities. Evaluating FQ sorption by soil components is important to understand their interaction with soils and ...
