Reaction monitoring
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Preoperative neoadjuvant chemoradiation (nCRT) has been the standard treatment for locally advanced rectal cancer. Serum biomarkers to stratify patients with respect to prognosis and response to nCRT are needed due to the diverse response to the therapy.
13p vialfrednobel 23-12-2023 3 3 Download
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Flexible photodetectors show great applications in wearable electronics such as health monitoring and the Internet of Things. In this study, we have prepared ultralong ZnSeePbSe heterojunction nanowires with a length of 20 mm in gram-scale by an in-situ cation exchange reaction.
7p viberbers 09-08-2023 6 3 Download
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To assist in monitoring the safety in the use of drugs for patients, and providing maximum data to the National Center for DI&ADR on the drug safety of Phase 4 (the drugs are widely used in the community), clinical pharmacists have monitored ADRs actively instead of waiting for clinical reports.
6p viwolverine 11-07-2023 2 2 Download
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Guar (GG) and locust bean (LBG) galactomannans (GMs) oxidation at C-6 was performed with catalyst TEMPO, in which the reaction progress was monitored by consume of NaOH solution. The products were characterized by spectroscopic analysis, infrared, and H-nuclear magnetic resonance, confirming the presence of aldehydes groups as intermediate of reaction to carboxylic acid.
8p vihermione 06-01-2023 3 2 Download
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Polysaccharide TEMPO-oxidation was monitored using automatic continuous online monitoring of polymerization reactions (ACOMP). The products of oxidation, obtained at different pHs (9, 7 and 5) and different concentrations of catalyst TEMPO, were evaluated by Automatic Continuous Mixing (ACM) and Size Exclusion Chromatography (SEC).
8p vihermione 06-01-2023 3 2 Download
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Adirectinjection, multi residue analytical method separated in two chromatographic runs was developed utilizing scheduled analysis to simultaneously quantify 154 compounds, 84 precursors and 70 transformation products (TPs)/metabolites.
10p viginny 23-12-2022 9 3 Download
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Plants accumulate several thousand of phenolic compounds, including lignins and flavonoids, which are mainly synthesized through the phenylpropanoid pathway, and play important roles in plant growth and adaptation.
12p viginny 23-12-2022 6 3 Download
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A semi-quantitative method was developed to monitor the misuse of 15 SARM compounds belonging to nine different families, in urine matrices from a range of species (equine, canine, human, bovine and murine).
14p viginny 23-12-2022 7 3 Download
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In this work, it is proposed for the first time an electrophoretic approach based on micellar electrokinetic chromatography coupled with tandem mass spectrometry (MEKC-MS/MS) for the simultaneous determination of nine neonicotinoids (NNIs) together with the fungicide boscalid in pollen and honeybee samples.
10p viginny 23-12-2022 5 2 Download
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Genetically modified roundup ready soybean in processed meat products in the Kingdom of Saudi Arabia
This work was conducted to monitor the presence of Roundup Ready (RR) soybean in processed meat products in the Kingdom of Saudi Arabia (KSA). Seventy-two samples of processed meat products were collected from the Kingdom of Saudi Arabia (KSA) food market.
7p schindler 30-12-2021 9 0 Download
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The new complexes (1–3) were characterized by elemental analysis and spectroscopic methods and the molecular structure of 1a was determined by X-ray diffraction studies. These complexes were applied in the Suzuki–Miyaura cross-coupling reaction of phenylboronic acid with aryl halides in neat water. The activities of catalysts were monitored by gas chromatography–flame ionization detector and nuclear magnetic resonance.
10p langthannam 29-12-2021 12 0 Download
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Palladium-catalyzed Heck coupling reactions of styrene with bromoarene derivatives are carried out under aerobic conditions in water using water-soluble N,N,N′,N′-tetrakis(2-hydroxyethyl)ethylenediamine (EdteH4) and ethylenediaminetetraacetic acid disodium salt (Na2EDTA) as ligands. The effect of different bases, catalyst loading, and additives is also monitored.
8p langthannam 29-12-2021 7 0 Download
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The oxidation of the anticholinergic drug atropine sulfate monohydrate by hexacyanoferrate(III) in aqueous alkaline media was investigated spectrophotometrically by monitoring the decrease in absorbance of hexacyanoferrate(III) (HCF(III)). Oxidation products were identified. The oxidation mechanism was proposed from kinetic studies. The reaction constants involved in the different steps of the mechanism were calculated.
11p langthannam 29-12-2021 11 0 Download
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Quantitation was performed with multiple reaction monitoring in the negative ionization mode. The response of the method was linear over a dynamic range of 0.5–500, 1.0–750, and 0.25–150 ng/mL for LOS, EXP-3174, and HCTZ, respectively. Extent of signal suppression/enhancement was examined through postcolumn infusion. The effect of matrix components was evaluated by postextraction spiking and calculation of the slope of calibration lines. The method was successfully applied to a bioequivalence study of 50 mg losartan and 12.
20p langthannam 29-12-2021 8 0 Download
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Photopolymerization kinetics of doxycycline hyclate (DOX)-imprinted hydrogels were monitored by real-time Fourier transform infrared spectroscopy and differential photocalorimetry. 2-Hydroxyethyl methacrylate-based hydrogels were synthesized by using ethylene glycol dimethacrylate as a cross-linker, acrylic acid (AA) as a functional monomer, and 2,2-dimethyl-2-hydroxy acetophenone as a photoinitiator. For imprinting DOX in hydrogels, the molar ratio of template to functional monomer (DOX:AA) was chosen as 1:8 and 1:16. The polymerization was achieved at two different initiator concentrations.
12p tudichquannguyet 29-11-2021 6 1 Download
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The ability of oxime-containing acetylcholinesterase reactivators BT-07 (K005), BT-08 (K033), BT-07-4M (K074), and obidoxime (H2LX2, X = Cl−, Br−) to bind palladium(II) or platinum(II) cations was evaluated in aqueous solutions (pH 7.4) at metal-to-ligand molar ratio varying from 1:10 to 10:1. Spectral changes were monitored within a week after mixing the reagents in the range from 220 nm to 500 nm. Results showed that depending on chemical structure and reaction time, oximes form two complex species of composition, [MHL]3+ or [M2L]4+ (M = Pd(II), Pt(II)).
11p tudichquannguyet 29-11-2021 8 1 Download
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The synthesis and characterisation including 1 H and 13 C NMR spectroscopy of a Mannich base 1,4-di-(5- acetamido-2-hydroxybenzyl)piperazine is herein reported. The Mannich reaction leading to the formation of the ligand took place at both ends of piperazine. Four metal complexes [Cu(II) and Fe(III)] including those bearing thiocyanate groups (SCN–) in N- and S-bonding modes have been studied for their abilities to mimic catecholase oxidase. All the metal complexes are catalytically active with the highest turnover rate (k cat) recorded for complex 3.
10p tudichquannguyet 29-11-2021 11 1 Download
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Neoplastic transformation of germinal center B (GCB) cells may give rise to a variety of different B cell lymphoma subtypes, most of which show substantial heterogeneity in terms of genetic alterations and clinical features. The mutations observed in cancerrelated genes in GCB cells are related to abnormalities in the immunogenetic mechanisms associated with germinal center reaction. Recent studies have rapidly identified genomic alterations in B cell lymphomas that may be useful for better subclassification, noninvasive diagnosis, and prediction of response to therapy.
14p thiencuuchu 27-11-2021 11 1 Download
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Intramuscular adipocytes differentiation is a complex process, which is regulated by various transcription factor, protein factor regulators and signal transduction pathways. However, the proteins and signal pathways that regulates goat intramuscular adipocytes differentiation remains unclear.
14p vilichoo2711 23-06-2021 13 1 Download
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Autophagy is an evolutionary ancient mechanism that sequesters substrates for degradation within autolysosomes. The process is driven by many autophagy-related (ATG) proteins, including the core members ATG9 and ATG16.
15p vilichoo2711 23-06-2021 11 1 Download