A5050650931- Analytical Chemistry and Chromatography
- Mass Spectrometry Techniques and Applications
- Cultural Heritage Materials Analysis
- Microfluidic and Capillary Electrophoresis Applications
- Analytical chemistry methods development
- Pharmaceutical and Antibiotic Environmental Impacts
- Dyeing and Modifying Textile Fibers
- Dye analysis and toxicity
- Chemical Synthesis and Reactions
- Chromatography in Natural Products
- Biochemical and Molecular Research
- Phytochemicals and Antioxidant Activities
- Conservation Techniques and Studies
- Building materials and conservation
- Sulfur-Based Synthesis Techniques
- Antibiotics Pharmacokinetics and Efficacy
- Synthesis and Reactivity of Sulfur-Containing Compounds
- HIV/AIDS drug development and treatment
- Selenium in Biological Systems
- Mercury impact and mitigation studies
- Biological Stains and Phytochemicals
- Trace Elements in Health
- Pigment Synthesis and Properties
- Adenosine and Purinergic Signaling
- Protein purification and stability
Gdańsk University of Technology
2016-2025
University of Gdańsk
1998-2016
Centre National de la Recherche Scientifique
2003-2004
Abstract Functional antibacterial textile materials are in great demand the medical sector. In this paper, we propose a facile, eco-friendly approach to design of biodegradable cotton fabrics. Cotton fiber fabrics were enhanced with chitosan coating loaded plant extracts and essential oils. We employed Fourier-transform infrared (FTIR) X-ray photoelectron spectroscopy (XPS), UV–Vis spectrophotometry, optical microscopy, scanning electron microscopy (SEM), thermogravimetric analysis (TGA)...
The identification and determination of transformation products (TPs) pharmaceuticals is essential nowadays, in order to track their fate the aqueous environment and, thus, estimate actual pollution. However, this a challenging task due necessity apply high-resolution instruments enable detect known unknown compounds. This work presents use liquid chromatography quadrupole time-of-flight mass spectrometry (LC-QTOF-MS) as powerful tool for three selected pharmaceuticals, furosemide (FUR),...
The mechanisms of retro-Diels-Alder fragmentation luteolin are studied theoretically using the Density Functional Theory method (B3LYP hybrid functional) together with 6-311++G(d,p) basis set and supported by electrospray ionization tandem mass spectrometry (ESI-MS) results. reaction paths leading to formation 1,3A- 1,3B- fragment ions observed as main spectral features in ESI-MS spectrum described discussed, including structures transition states intermediate products. heights activation...
A multi-tool analytical practice was used for the characterisation of a 16th century carpet manufactured in Cairo. mild extraction method with hydrofluoric acid has been evaluated order to isolate intact flavonoids and their glycosides, anthraquinones, tannins, indigoids from fibre samples. High-performance liquid chromatography coupled spectroscopic mass spectrometric detectors identification possible marker compounds special attention paid natural dyes present historical Weld, young...
A systematic approach to the characterization of selenized yeast supplements in terms speciation selenium was developed. The optimized fractionation procedures included sequential leaching water soluble, cell-wall bound, and membrane-protein followed by a further each extract high-resolution size-exclusion chromatography. stability fractions collected as chromatographic peaks investigated presence proteolytic enzyme (pronase XIV) trypsin order discriminate between selenium-containing...
Natural dyes were extracted from various plant sources and converted into lake pigments based on aluminum tin. Three different plants (weld, Persian berries, Brazilwood) chosen as representative of natural dyes. High-performance liquid chromatography (HPLC) triple-quadrupole mass spectrometry (QqQ MS) used to identify dyestuffs in the raw extracts. The further characterized by optical scanning electron microscopy (SEM), UV-Vis spectrophotometry, thermogravimetric analysis (TGA)....
Starting from the sampling up to time of analysis, content water sample can be altered due chemical, physical, and biological reactions it undergoes. This article deals with processes occurring in samples during their storage reasons occurrence. Special attention has been paid chemical physicochemical as well microbiological photochemical degradation component sample. Techniques for preservation are also reviewed.
Due to growing restrictions on the use of halogenated flame retardant compounds, there is great research interest in development fillers that do not emit toxic compounds during thermal decomposition. Polymeric composite materials with reduced flammability are increasingly demand. Here, we demonstrate unmodified graphene and carbon nanotubes as well basalt fibers or flakes can act effective retardants polymer composites. We also investigate effects mixtures these mineral thermal, mechanical,...
Abstract The incorporation of bio-waste products into polymer materials as a fillers and colorants represents highly significant approach for developing sustainable composites, aligning with the principles circular bioeconomy contributing to reduced environmental impact. In this study, coffee grounds (CG) black tea (BTG), two mainstream food processing by-products, were employed bio-fillers pigments ethylene-norbornene (EN) composites. effects hydrophobic treatment...
<title>Abstract</title> Naturally occurring phenols were incorporated into the mycophenolic acid (MPA) core to form sixteen new MPA derivatives. Ester conjugates of with isoeugenol, methyl o-coumarate, and raspberry ketone exhibited highest antioxidant activity in DPPH test. These derivatives then tested against human pancreatic cancer AsPC-1 cells, showing cytotoxicity similar that referential parent compounds mycophenolate mofetil (MMF). Subsequently, most obtained esters proved T-Jurkat...
Nowadays, monitoring focuses on the primary compounds and does not include degradation products formed during various biological chemical processes. Transformation may have same effects to human health environment or sometimes they can be more toxic than parent compound. Unfortunately, knowledge about formation of is still limited, however, very important for environmental risk assessment. Firstly, photodegradation kinetic amlodipine was investigated in two experimental conditions: exposure...
Experimental studies were conducted to investigate the photodegradation of diazepam and sertraline, two most frequently used psychiatric drugs, induced by xenon lamp irradiation, which overlap sunlight spectra, natural sunlight. Degradation kinetics was established indicating occurrence autocatalytic reactions. The application liquid chromatography coupled quadrupole time-of-flight mass spectrometry allowed for accurate measurements proper fragmentation target compounds enabling structure...
Abstract Calixarenes are a class of host molecules with three-dimensional cavity capable accepting guest molecules. The interest calixarenes in analytical and separation chemistry has increased recent years because their ability to form reversible complexes both neutral charged have been utilized gas chromatography, solid-phase extraction, capillary electrophoresis overall high performance liquid chromatography. This short review is focused on advances synthesis characterization calixarene,...
We present here the advances achieved in development of new sulfamoylated 4-(1-phenyl-1H-1,2,3-triazol-4-yl)phenol derivatives as potent steroid sulfatase (STS) inhibitors for treatment breast cancer. Prompted by promising biological results and silico analysis, initial series similar compounds were extended, appending a variety m-substituents at outer phenyl ring. The inhibition profiles newly synthesized evaluated using radioisotope enzymatic assay and, together with preceding reported...
A series of polycyclic aromatic hydrocarbons (PAHs) different size and shape has been used to characterize the chromatographic behavior five calix[4]arene stationary phases in 1,3-alternate conformation synthesized our laboratory. The selection linear, four-ring nonlinear, five-ring PAHs gave data on selectivity changes across range columns. Retention 12 solutes evaluated at various methanol contents mobile phase (70–100% v/v) column temperatures (20–45°C). thermodynamic parameters...
An analytical protocol for identification of dyes using reversed phase liquid chromatography-mass spectrometry with atmospheric pressure electrospray ionization (LC-ESI/MS) is presented.
This paper presents a comprehensive analysis of artistic paints produced in the 19<sup>th</sup>century by French art materials supplier Richard Ainès.