A5068482119- Photochemistry and Electron Transfer Studies
- Synthesis and biological activity
- Metal complexes synthesis and properties
- Crystallization and Solubility Studies
- Luminescence and Fluorescent Materials
- X-ray Diffraction in Crystallography
- Phytochemicals and Antioxidant Activities
- Porphyrin and Phthalocyanine Chemistry
- Free Radicals and Antioxidants
- Bee Products Chemical Analysis
- Organic Light-Emitting Diodes Research
- Nanocomposite Films for Food Packaging
- Molecular Sensors and Ion Detection
- biodegradable polymer synthesis and properties
- Organometallic Compounds Synthesis and Characterization
- Phenothiazines and Benzothiazines Synthesis and Activities
- Synthesis and Biological Evaluation
- Essential Oils and Antimicrobial Activity
- Protein Interaction Studies and Fluorescence Analysis
- Spectroscopy and Quantum Chemical Studies
- Crystal structures of chemical compounds
- Structural and Chemical Analysis of Organic and Inorganic Compounds
- Chemical Thermodynamics and Molecular Structure
- Synthesis and Characterization of Heterocyclic Compounds
- Cholinesterase and Neurodegenerative Diseases
Cracow University of Technology
2016-2025
Maria Curie-Skłodowska University
2017-2024
University of Life Sciences in Lublin
2017
Jagiellonian University
2013-2014
Tallaght University Hospital
2007-2011
Every kind of honey is a very precious natural product which made by Mellifera bees species. The chemical composition depends on its origin or mode production. Honey consists essentially different sugars, predominantly fructose and glucose. There are also non – sugar ingredients like proteins amino acids, as well some enzymes, such as: invertase, amylase, glucose oxidase, catalase phosphatase. fact that one the oldest medicine known worldwide remarkable. Scientists all over world have been...
Abstract Plant-based beverages (PBs) are currently gaining interest among consumers who seeking alternative sustainable options to traditional dairy drinks. The study aimed obtain powdered plant without the addition of carriers by spray drying method implement them in future as an liquid form Some most well-known commercial sources like soy, almond, rice and oat were analyzed this work. effect different treatments (concentration, fiber) two approaches od (conventional high temperature...
The coordination modes of copper(II) complexes Schiff base-derived coumarin ligands, which had previously shown good anti-Candida activity, were investigated by pH-potentiometric and UV-Vis spectroscopic methods. These studies confirmed the mode ligands to be through N imine deprotonated phenol coumarin-derived ligand in solution. In addition, more active their corresponding presence liquid frozen solution ESR A series secondary amine derivatives base isolated with solubility characteristics...
4-[5-(Naphthalen-1-ylmethyl)-1,3,4-thiadiazol-2-yl]benzene-1,3-diol (NTBD) was extensively studied through stationary UV–vis absorption and fluorescence measurements in various solvents solvent mixtures by first-principles quantum chemical calculations. It observed that while polar (e.g., methanol) only a single emission band emerged; the analyzed 1,3,4-thiadiazole derivative capable of producing dual signals low polarity n-hexane) certain methanol/water). As clearly follows from...
There is currently a growing interest in imino derivatives of compounds such as thiadiazoles and other groups whose extended π-electron systems enhance their photophysical properties. These also show low toxicity strong antifungal activity, making them effective against fungal pathogens crops. For the above reasons, first part paper, structure selected analogs was considered, detailed spectroscopic analyses were conducted focusing on excited state intramolecular proton transfer (ESIPT)...
Practical applications of photosynthesis-inspired processes depend on a thorough understanding the structures and physiochemical features pigment molecules such as chlorophylls bacteriochlorophylls. Consequently, major structural these pigments have been systematically examined to how they influence S1 state energy, lifetimes, quantum yields, photostability. In particular, effects macrocyclic π-electron system, central metal ion (CMI), peripheral substituents, aggregation, critical...
Three novel 1,3,4-tiadiazole-derived compounds with biological-activity, i.e., 4-(5-(methylamino)-1,3,4-thiadiazol-2-yl)benzene-1,3-diol (MDFT), 4-(5-(phenylamino)-1,3,4-thiadiazol-2-yl)benzene-1,3-diol (PhATB), and 4-(5-(4-chlorophenylamino)-1,3,4-thiadiazol-2-yl)benzene-1,3-diol (4-CIPhATB) were characterized the use of several spectroscopic methods. Detailed UV-vis studies revealed keto/enol tautomerism examined compounds. The absorption spectra recorded in nonpolar solvents exhibited...
A fluorescence quenching-based mechanism for the determination of hypochlorite was proposed based on spectroscopic and chromatographic studies hypochlorite-sensing potency three structurally similar highly fluorescent coumarins. The mode action found to rely upon a chlorination coumarin-based probes resulting from their reaction with sodium hypochlorite. Importantly, formation chlorinated derivatives accompanied by linear decrease in intensities tested. results obtained suggest applicability...
Classical synthetic protocols were applied for the isolation of three novel 1,3,4-thiadiazole derivatives which then complexed with biologically important Cu(II) and Zn(II) ions. All free ligands their corresponding complexes characterized using a number spectroscopic techniques including Ultraviolet-visible (UV–vis), Fluorescence, Infrared (FT-IR), tandem liquid chromatography-mass (LC-MS), X-ray diffraction (XRD), Nuclear Magnetic Resonance (NMR) spectroscopy (1H, 13C, HSQC, HMBC). The...
A novel series of coumarin-thiadiazole hybrids, derived from substituted coumarin-3-carboxylic acids was isolated and fully characterized with the use a number spectroscopic techniques XRD crystallography. Several compounds showed intensive fluorescence in visible region, comparable to that known coumarin-based standards. Moreover, new were tested as potential antineurodegenerative agents via their ability act acetylcholinesterase (AChE) butyrylcholinesterase (BuChE) inhibitors. Compared...
Fourier transform infrared spectroscopy (FTIR) in connection with chemometric analysis were used as a fast and direct approach to classify spray dried honey powder compositions terms of content, the type diluent (water or skim milk), carrier (maltodextrin milk powder) for preparation feed solutions before drying. Eleven variants powders containing different amounts honey, carrier, investigated compared pure materials. Chemometric discrimination samples was achieved by principal component...
In our previous work, we discussed the emergence of dual fluorescence phenomenon in selected compounds from group 1,3,4-thiadiazoles. The results obtained a number experimental studies, supported by [TD]DFT calculations, clearly indicated that stemmed an overlap several factors, including correct conformation analyzed molecule and, very significantly this context, aggregation effects. Where those two conditions were met, could observe intermolecular charge transfer (CT) and electronic states...
Biodegradable materials are used in the manufacture of packaging and compostable films various types medical products. They have demonstrated a large number potential practical applications medicine particularly treatment cardiac, vascular, orthopedic conditions adults as well children. In our research, extrusion-cooking technique was applied to prepare thermoplastic starch (TPS), which then utilized obtain environmentally friendly starch-based films. Potato basic raw material exploited....
A series of coumarin-thiadiazole hybrids and their corresponding Cu(II) Zn(II) complexes were synthesized characterized with the use spectroscopic techniques. The results obtained indicate that all act as bidentate chelators ions. isolated differ in ligand:metal ratio depending on central metal. In most cases, are characteristic a 1:1 ratio, while is 2:1. All compounds tested potential antibacterial agents against Gram-positive (Staphylococcus aureus, Staphylococcus epidermidis)...
The purpose of this study was to investigate the effect micronization on characteristics black cumin pressing waste material. basic composition, amino acid, and fatty acid content raw material-specifically, material-were determined. samples were micronized in a planetary ball mill for periods ranging from 0 20 min. particle sizes material then examined using laser analyzer, Mastersizer 3000. structures produced powders by X-ray diffraction. Additionally, FTIR (Fourier-transform infrared)...
The article presents the results of spectroscopic studies focused on a selected compound from 1,3,4-thiadiazole group—2-(4-fluorophenylamino)-5-(2,4-dihydroxybenzeno)-1,3,4-thia-diazole (FABT)—in micellar system formed by Triton X-100, non-ionic detergent. Fluorescence measurements revealed phenomenon dual fluorescence whose emergence is related to particular molecular organisation compound, which depends both concentration detergent and, most all, itself. Dual FABT in was observed for...
Biodegradable materials are used in the manufacture of packaging and compostable films various types medical products. These have demonstrated high potential applications: cardiac, vascular orthopaedic conditions adults as well children. In our research, extrusion-cooking technique was to obtain environmentally friendly loose-fill foams packaging. Potato starch basic raw material. Polyvinyl alcohol an additive amount 1%, 2% 3% replace starch. The components were mixed moistened with water...
Abstract Addressing the issues arising from production and trade of low-quality foods necessitates developing new quality control methods. Cooking oils, especially those produced grape seeds, are an example food products that often suffer questionable due to various adulterations fruits used for their production. Among many methods allowing fast efficient control, combination experimental advanced mathematical approaches seems most reliable. In this work a method seed oils compositional...