Artykuły naukowe | Articles: Recent submissions
Now showing items 21-40 of 91
-
Effect of New Thiophene-Derived Aminophosphonic Derivatives on Growth of Terrestrial Plants. Part 2. Their Ecotoxicological Impact and Phytotoxicity Test Toward Herbicidal Application in Agriculture
; ; ; Malinowski, Zbigniew
; ; (MDPI, 2018)
Background: The aim of this work was to evaluate phytotoxicity of the thiophene derivatives against three persistent weeds of a high degree of resistance (Galinsoga parviflora Cav., Rumex acetosa L., and Chenopodium album) ... -
The role of tannic acid and sodium citrate in the synthesis of silver nanoparticles
; ; ; ; ; ; Ignaczak, Anna; ; (Springer Nature, 2017)
We describe herein the significance of a sodium citrate and tannic acid mixture in the synthesis of spherical silver nanoparticles (AgNPs). Monodisperse AgNPs were synthesized via reduction of silver nitrate using a mixture ... -
Application of diethyl ethynylphosphonate to the synthesis of 3‐phosphonylated β‐lactams via the Kinugasa reaction
(ARKAT USA, 2017)The easily available diethyl ethynylphosphonate reacts with diverse aldonitrones under Kinugasa reaction conditions at room temperature, providing 3‐phosphonylated β‐lactams in good yields. In all cases, the reaction ... -
Redox-Active Glycol Nucleic Acid (GNA) Components: Synthesis and Properties of the Ferrocenyl-GNA Nucleoside, Phosphoramidite, and Semicanonical Dinucleoside Phosphate
(American Chemical Society, 2020)Ferrocenylated glycol nucleic acid (Fc-GNA) components are rarely studied in the field of xeno nucleic acid (XNA) chemistry. As an attempt to contribute to XNA chemistry, in the present article we report a seven-step ... -
Fused Silica Microcapillaries Used for a Simple Miniaturization of the Electrified Liquid−Liquid Interface
; ; Półtorak, Łukasz; (American Chemical Society, 2018)
Short pieces of fused silica capillary tubing were used to support an electrified liquid–liquid interface. A methyl deactivated silica capillary having a diameter of 25 μm was filled with 1,2-dichloroethane solution and ... -
Asymmetric Friedel–Crafts Alkylation of Indoles Catalyzed by Chiral Aziridine-Phosphines
; ; ; Rachwalski, Michał (MDPI, 2020)
Over the course of the present studies, a series of optically pure phosphines functionalized by chiral aziridines was synthesized in reasonable/good chemical yields. Their catalytic activity was checked in the enantioselective ... -
Enantiodivergent Aldol Condensation in the Presence of Aziridine/Acid/Water Systems
; Rachwalski, Michał; Leśniak, Stanisław ; (MDPI, 2020)
A series of novel chiral imines was synthesized from corresponding aldehydes and 1-(2-aminoalkyl)aziridines with good chemical yields. Such imines were tested as catalysts in the direct asymmetric aldol reaction between ... -
Mitochondria Targeting with Luminescent Rhenium(I) Complexes
(MDPI, 2017)Two new neutral fac-[Re(CO)3(phen)L] compounds (1,2), with phen = 1,10-phenanthroline and L = O2C(CH2)5CH3 or O2C(CH2)4C≡CH, were synthetized in one-pot procedures from fac-[Re(CO)3(phen)Cl] and the corresponding carboxylic ... -
Deeper insight into the properties of the newly synthesized macrocycles as drug receptors – some preliminary quantum chemical studies
Ignaczak, Anna; ; (Royal Society of Chemistry, 2017)
The article presents the results of our more extended studies performed on one of the carbohydrate derivatives of azacrown ethers that were recently synthesized in our laboratory. An attempt is made to explain the interactions ... -
Anticancer and Antibacterial Activity Studies of Gold(I)-Alkynyl Chromones
(MDPI, 2015)Three gold(I) complexes of alkynyl chromones were synthesized and characterized. The single-crystal X-ray structure analysis of a dinuclear compound and of a flavone derivative exhibit a typical d10 gold(I)-alkynyl linear ... -
Comparison of the Physicochemical Properties of Carboxylic and Phosphonic Acid Self-Assembled Monolayers Created on a Ti-6Al-4V Substrate
(MDPI, 2020)This study compared the tribological properties in nano- and millinewton load ranges of Ti-6Al-4V surfaces that were modified using self-assembled monolayers (SAMs) of carboxylic and phosphonic acids. The effectiveness ... -
The mechanism of electropolymerization of nickel(ii) salen type complexes
(The Royal Society of Chemistry and the Centre National de la Recherche Scientifique, 2017)Ni(II) complexes with (±)-trans-N,N′-bis(salicylidene)-1,2-cyclohexanediamine ([Ni(salcn)]), and its methyl ([Ni(salcn(Me))]) and tert-butyl ([Ni(salcn(Bu))]) derivatives have been synthesized. Anodic electropolymerization ... -
Zinc(II) Complexes with Amino Acids for Potential Use in Dermatology: Synthesis, Crystal Structures, and Antibacterial Activity
(MDPI, 2020)The multifunctional profile of Zn2+ has influenced its great popularity in various pharmaceutical, food, and cosmetic products. Despite the use of different inorganic and organic zinc derivatives, the search for new ... -
Diethyl (1-benzyl-4-phenyl-3-trifluoromethyl-1Hpyrrol-2-yl)phosphonate
(W. T. A. Harrison, University of Aberdeen, Scotland, 2017)In the title compound, C22H23F3NO3P, the dihedral angles between the pyrrole ring and the benzyl and phenyl rings are 81.38 (7) and 46.21 (8)°, respectively. The ethyl phosphate groups present with P—O—C—C torsion angles ... -
Calorimetric and spectroscopic investigations of interactions between cucurbituril Q7 and gemcitabine in aqueous solutions
(Springer Nature [Co-publication with Akadémiai Kiadó, Budapest, Hungary], 2018)Studies on the interactions between cucurbituril Q7 and gemcitabine (Gem) hydrochloride in water were carried out using isothermal titration calorimetry (ITC) and electrospray ionization–mass spectrometry (ESI-MS). According ... -
A Simplified Method for Simultaneous Determination of α-Lipoic Acid and Low-Molecular-Mass Thiols in Human Plasma
; ; ; ; Głowacki, Rafał (MDPI, 2020)
α-Lipoic acid, glutathione, cysteine, and cysteinylglycine can be applied as therapeutic agents in civilization diseases such as diabetes mellitus, cardiovascular diseases, and cancers. On the other hand, a higher ... -
Effects of l-α-amino acids side chains on their interparticle interactions with the dissociated potassium chloride in aqueous solutions
Waliszewski, Dariusz; ; ; ; (Elsevier, 2018)
Dissolution enthalpies of several natural amino acids (l-α-asparagine, l-α-glutamine, l-α-aspartic acid, l-α-glutamic acid, l-α-arginine, l-α-lysine and l-α-histidine) were measured in aqueous solutions of potassium chloride ... -
Oxidation of 2-mercaptopyridine N-oxide upon iodine agent: structural and FT-IR studies on charge-assisted hydrogen bonds CAHB(+) and I…I halogen interactions in 2,2′-dithiobis(pyridine N-oxide) ionic cocrystal
(Springer Nature, 2019)2-Mercaptopyridine N-oxide (I) undergoes spontaneous dimerization to the disulfide form due to reaction with iodine acting as an oxidizing reagent. As a result, a di-N-oxide disulfide derivative of pyridine is obtained. ... -
The use of high-performance liquid chromatography with diode array detector for the determination of sulfide ions in human urine samples using pyrylium salts
; ; ; Chwatko, Grażyna; (Elsevier, 2020)
Hydrogen sulfide is a toxic gas involved in the regulation of some essential biological processes. A novel, precise, accurate and rapid method based on high-performance liquid chromatography with diode array detection for ... -
Influence of Constant Magnetic Field on Electrodeposition of CoW/Cu/CoW Composite
; ; ; ; Sroczyński, Dariusz; ; ; ; ; (ESG, 2018)
Magnetic field influences the process of electrolytic deposition of materials, including metal composites. Numerous studies have shown that the magnetic field interferes in the rate of deposition, surface morphology, ...