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Search results for: N-PHOSPHONOMETHYLGLYCINE BIODEGRADATION
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Generation and stability of N-phenacyl-4-R-pyridinium ylides in silicon polypodands
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The Occurrence of Cancer and of Adenomae in the Large Bowel and the Concentration of N -Nitrosamines in the Gastric Juice
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Starch-grafted-N-vinylformamide copolymers manufactured by reactive extrusion: synthesis and characterization
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Solvation of N-methylformamide by ethanol: a comparison of molecular dynamics calculations with the experimental data
PublicationWykonano obliczenia metodami dynamiki molekularnej dla tytułowego układu. Rezultaty porównano z uzyskanymi wcześniej wynikami pomiarów termodynamicznych oraz wnioskami z nich wyciągniętymi.
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A convenient synthesis of (S)-O-benzyl-N-tert-butoxycarbonyl-beta-tyrosine.
PublicationOpracowano dogodną metodę syntezy tytułowego aminokwasu z aldehydu 4-benzyloksybenzoesowego, kwasu malonowego i octanu amonu. Otrzymany aminokwasu rozdzielono na enancjomery poprzez krystalizację soli diastereoizomerycznej z kwasem L-winowym.
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Complexes of manganese(II) tri-tert-butoxysilanethiolate with chelating N-donor ligands.
PublicationTri-tert-butoksysilanotiolan manganu(II) jest związkiem wrażliwym i rozkładającym się w warunkach atmosferycznych. Z tego względu synteza jego pochodnych z chelatującymi zasadami heterocyklicznymi takimi jak 1,10-fenantrolinaza czy 2,2'-bipirydyl wydawał się dogodną metodą otrzymania bardziej stabilnych układów. Otrzymane w ten sposób krystaliczne proszki wykazują znacznie wyższą stabilność temperaturową, możliwe jest więc przechowywanie...
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AlP compound and P-doping for promotion of electrocatalytic activity of N-doped carbon derived from metal-organic framework
PublicationWater splitting plays a key role in future fuels, where two processes occur - the hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER). Nitrogen-doped carbon derived from...
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Effective anti-plane properties of piezoelectric fibrous composites
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Dipole matrix for the 2D inclusions close to circular
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New synthesis route of highly porous InxCo4Sb12 with strongly reduced thermal conductivity
PublicationHighly porous, In-filled CoSb3 skutterudite materials with an attractive thermoelectric figure of merit (ZT * 1) and corresponding dense samples were fabricated through the cost-effective method of reduction in oxides in dry hydrogen and the pulsed electric current sintering (PECS) method, respectively. The reduction process was described in detail using in situ thermogravimetric analysis of Co2O3, Sb2O3 and In(NO3)35H2O separately...
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Dendron to Central Core S1–S1 and S2–Sn (n>1) Energy Transfers in Artificial Special Pairs Containing Dendrimers with Limited Numbers of Conformations
PublicationTwo dendrimers consisting of a cofacial free-base bisporphyrin held by a biphenylene spacer and functionalized with 4-benzeneoxomethane (5-(4-benzene)tri-10,15,20-(4-n-octylbenzene)zinc(II)porphyrin) using either five or six of the six available meso-positions, have been synthesized and characterized as models for the antenna effect in Photosystems I and II. The presence of the short linkers, -CH2O-, and long C8H17 soluble side...
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Structure and magnetic properties of BeO-Fe2O3-Al2O3-TeO2 glass-ceramic composites
PublicationIn this work, glass-ceramics in the xBeO–20Fe2O3–(80-x)TeO2 system with x = 0–25 mol% were synthesized by the traditional melt quenching route and studied by inductively coupled plasma optical emission spectroscopy, X-ray diffraction, confocal microscopy, infrared and Raman spectroscopy. BeO addition was found to support the crystallization process of Fe2O3 during melting, and an increased BeO content was associated with an increased...
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Understanding ion–ion and ion–solvent interactions in aqueous solutions of morpholinium ionic liquids with N-acetyl-L-alaninate anion through partial molar properties and molecular dynamics simulations
PublicationAmino acid ionic liquids (AAILs) provide a low toxicity, biodegradable alternative to conventional ionic liquids, while also maintaining solubility in water. Densities and sound velocities of aqueous solutions of four amino acid ionic liquids (AAILs), based on the N-alkyl-N-methylmorpholinium ([Mor1,R], R = 2, 3, 6, 8) cation and N-acetyl-L-alaninate ([N-Ac-L-Ala]) anion were measured at T = (293.15–313.15) K and at atmospheric...
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Catena-Poly[{[mu]-[eta]5:[eta]5-1-[2-(dimethylamino)ethyl-[kappa]N]cyclopentadienyl}-lithium(I)-([mu]-1,1,3,3-tetra-tert-butyltriphosphane-[kappa]3P2:P1,P3)lithium(I)]
PublicationThe title compound, [Li2(C9H14N)(C16H36P3)]n, is a by-product of the reaction of [Cp(C5H4CH2CH2NMe2)ZrCl2]n with tBu2P-P(SiMe3)Li in toluene. It is a coordination polymer composed of infinite chains running along [010]. One Li(I) atom is chelated by the cyclopentadienyl ring and and the N atom of the scorpionate ligand and a P atom, whereas the other Li(I) atom is coordinated by the backside of the cyclopentadienyl ring and two...
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Reduction of aliphatic nitroesters and N-nitramines by Enterobacter cloacae PB2 pentaerythritol tetranitrate reductase
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Structural Disorder in High-Spin {CoII9WV6} (Core)-[Pyridine N-Oxides] (Shell) Architectures
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Aerobic Cytotoxicity of Aromatic N-Oxides: The Role of NAD(P)H:Quinone Oxidoreductase (NQO1)
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The saturation of the excess electron binding energy in AlnF3n+1- (n= 1–5) anions
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N-way modelling of sediment monitoring data from Mar Menor lagoon, Spain
PublicationW artykule przedstawiono zastosowanie modelowania typu Tucker3 dla danych pochodzących z monitorowania chemizmu osadów obszaru laguny Mar Menor w Hiszpanii. Celem badania jest modelowanie i interpretacja frakcjonowania metali ciężkich w materii zawieszonej i frakcjach osadów wynikających z procesów sedymentacyjnych. Modelowanie ma na celu oszacowanie ryzyka środowiskowego ponieważ działalność ludzka ma znaczny wpływ na stan laguny....
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Conformational studies of vasopressin analogues modified with N-methylphenylalanine enantiomers in dimethyl sulfoxide solution
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Influence of the substituent on amide nitrogen atom of N-acetyl tyrosine on interactions with β-cyclodextrin
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Electrokinetic properties of n-tetradecane/ethanol emulsions with DPPC and enzyme lipase or phospholipase A2
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An In Vitro Antimicrobial, Anticancer and Antioxidant Activity of N–[(2–Arylmethylthio)phenylsulfonyl]cinnamamide Derivatives
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Facile synthesis N-doped hollow carbon spheres from spherical solid silica
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Protective Effect of Morus alba Leaf Extract on N-Nitrosodiethylamine-induced Hepatocarcinogenesis in Rats
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Starch‐graft copolymers of N‐vinylformamide and acrylamide modified with montmorillonite manufactured by reactive extrusion
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Diastereoselective formation of glucoluril dimers: isomerization mechanismand implications for cucurbit[n]uril synthesis
PublicationZaprezentowano syntezę pochodnych glikolurylu tworzących ściśle sprecyzowane dimeryczne struktury w roztworze wodnym. Opisano diastereoselektywną syntezę pochodnych o strukturze amfifilowej. Przedstawiono mechanizm reakcji oraz struktury krystalograficzne wybranych związków.
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Application of safirinium N-hydroxysuccinimide esters to derivatization of peptides for high-resolution mass spectrometry, tandem mass spectrometry, and fluorescent labeling of bacterial cells
PublicationMass spectrometry methods are commonly used in the identification of peptides and biomarkers. Due to a relatively low abundance of proteins in biological samples, there is a need for the development of novel derivatization methods that would improve MS detection limits. Hence, novel fluorescent N-hydroxysuccinimide esters of dihydro-[1,2,4]triazolo[4,3-a]pyridin-2-ium carboxylates (Safirinium P dyes) have been synthesized. The...
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Efficient Recovery of Noble Metal Ions (Pd2+, Ag+, Pt2+, and Au3+) from Aqueous Solutions Using N,N'-Bis(salicylidene)ethylenediamine (Salen) as an Extractant (Classic Solvent Extraction) and Carrier (Polymer Membranes)
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Surface quality of the plasma cermet coatings after grind finishing
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Synthesis and molecular structure of novel 2-(alkylthio)-4-chloro-N-(4,5-dihydro-5-oxo-1H-1,2,4-triazol-3-yl)-5-methylbenzenesulfonamideswith potential anticancer activity
PublicationOtrzymano 15 nowych związków: 2-(alkilotio)-4-chloro-N-(4,5-dihydro-5-oxo-1H-1,2,4-triazol-3-yl)-5-metylobenzenosulfonamidów, dla których opracowano nową metodę syntezy. Dla jednej pochodnej wyznaczono strukturę rentgenowską. Związek nr 36 wykazuje wysoką aktywność przeciwnowotworową w stosunku do 13 linii komórek nowotworowych o poziomie GI_50 w zakresie stężeń 1,9-3,0 μM.
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Etazene (N,N-diethyl-2-{[(4-ethoxyphenyl)methyl]-1H-benzimidazol-1-yl}-ethan-1-amine (dihydrochloride)): a novel benzimidazole opioid NPS identified in seized material: crystal structure and spectroscopic characterization
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Anion–cation interactions in a series of salts with substituted Hphen, Hbpy and H2bpy cations and [W(CN)8]4− anion: polymer with “super-short” N–H⋯N hydrogen bridges containing exclusively anions and H+
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Performance of electrochemical immunoassays for clinical diagnostics of SARS-CoV-2 based on selective nucleocapsid N protein detection: Boron-doped diamond, gold and glassy carbon evaluation
PublicationThe 21st century has already brought us a plethora of new threats related to viruses that emerge in humans after zoonotic transmission or drastically change their geographic distribution or prevalence. Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) was first spotted at the end of 2019 to rapidly spread in southwest Asia and later cause a global pandemic, which paralyzes the world since then. We have designed novel...
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The von Neumann entanglement entropy for Wigner-crystal states in one dimensional N-particle systems
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Missing the sweet spot: one of the two N-glycans on human Gb3/CD77 synthase is expendable
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Comparison of n-tetradecane/electrolyte emulsions properties stabilized by DPPC and DPPC vesicles in the electrolyte solution
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Effect of Temperature on n-Tetradecane Emulsion in the Presence of Phospholipid DPPC and Enzyme Lipase or Phospholipase A2
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Fluorescent Submicron-Sized Poly(heptafluoro-n-butyl methacrylate) Particles with Long-Term Stability
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Aryl and N-arylamide carbon nanotubes for electrical coupling of laccase to electrodes in biofuel cells and biobatteries
PublicationSingle walled carbon nanotubes (SWCNTs) were equipped with aryl residues by chemical reactions. These insoluble materials were used to substitute classical soluble mediators, which help to transfer electrical charge between the conducting electrode and the redox active center of enzyme molecules. The effect of different aryl residues on the efficiency of the catalytic reduction of dioxygen in the presence of laccase was systematically...
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CLICK 'n' Sleep: Light-Switch Behavior of Triazole-Containing Tris(bipyridyl)ruthenium Complexes
PublicationA set of RuII complexes incorporating triazole subunits are presented. They show a solvent-dependent light-switch effect. Theoretical calculations revealed the excited states involved in the emission process. The findings are highly important for future design of light-switch sensors and suggest a severe restriction for functional photomolecular devices synthesized by CLICK chemistry.
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Monitoring of n-butanol vapors biofiltration process using an electronic nose combined with calibration models
PublicationMalodours, by definition, are generally unpleasant, nuisance smells that are a mixture of volatile chemical compounds which can be perceptible even at low concentrations. Due to the more frequent occurrence of odour nuisance associated with the odour sensations, and thus the need to remove them from the air, deodorization techniques are commonly used. Biofiltration is one of the methods of reducing odorants in the air stream. In...
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(2-Ethylimidazole-κN)bis(tri-tert-butoxysilanethiolato-κ2O,S)zinc(II) propan-2-ol solvate
PublicationW publikowanym związku [Zn(C12H27O3SSi)2(C5H8N2)]*C3H8O, atom Zn(II) jest koordynowany przez atom azotu 2-etyloimidazolu, dwa atomy siarki i dwa atomy tlenu pochodzące od reszt tri-tert-butoksysilanotiolanowych, a geometria na atomie cynku(II) jest typu trygonalnej bipiramidy. Grupa hydroksylowa cząsteczki rozpuszczalnika 2-propanolu tworzy dwa wiązania wodorowe typu N-H - O i O-H - S z sąsiednią czasteczkĄ kompleksu, przez co...
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Preparation of DNA films for studies under vacuum conditions. The influence of cations in buffer solutions
PublicationBadania zostały przeprowadzone w celu określenia optymalnych warunków wymaganych do przygotowania jednolitych filmów superskręconego plazmidowego DNA do wykorzystania w doświadczeniach napromieniowania w warunkach wysokiej próżni. Badania pokazują, że znaczne szkody w DNA powstają w wyniku odpompowywania filmów DNA z roztworów zawierających jedynie czysta wodę.
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Structure-based design and evaluation of novel N-phenyl-1H-indol-2-amine derivatives for fat mass and obesity-associated (FTO) protein inhibition
PublicationFat mass and obesity-associated (FTO) protein contributes to non-syndromic human obesity which refers to excessive fat accumulation in human body and results in health risk. FTO protein has become a promising target for anti-obesity medicines as there is an immense need for the rational design of potent inhibitors to treat obesity. In our study, a new scaffold N-phenyl-1H-indol-2-amine was selected as a base for FTO protein inhibitors...
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Heteroleptic tri-tert-butoxysilanethiolate complexes of manganese(II) - thermal studies
PublicationThe thermal behavior of Mn(II) silanethiolate series [Mn(SR)2L(MeOH)n], where R=SSi(OBut)3, L=heterocyclic nitrogen base and n=0, 1 or 2 has been comparatively investigated using differential scanning calorimetry (DSC), thermogravimetry (TG) and TG-infrared spectoscopy (IR) techniques. The TG curves indicate the differences in the thermal decomposition due to presence of distinct N-donor ligands and labile MeOH molecules coordinated...
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Synteza i czynność optyczna związków o chiralności spowodowanej zahamowa- niem rotacji wokół wiązań N-N lub C-N.**2002, 114 s. 27 rys. 15 schem. 2 wykr. bibliogr. 197 poz. maszyn. Rozprawa doktorska /06.03.2002/. P. Gdań., Wydz. Chemiczny. Promotor: prof. dr. hab. inż. T. Połoński.
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Preferential solvation in (amide+alcohol) binary mixtures. Part 2. The N-methylpyrrolidinone+methanol mixture at T = 313.15 K: thermodynamic resultsand molecular dynamics calculations.
PublicationBadano zjawisko preferencyjnej solwatacji amidu (N-metylopyrrolidonu) przez metanol wykorzystując dwie uzupełniające się metody: bezpośrednich pomiarów własności termodynamicznych roztworu oraz symulacji komputerowych. W metodzie pierwszej dokonano pomiarów wielkości termodynamicznych takich jak: nadmiarowa energia swobodna mieszania, nadmiarowa objętość mieszania oraz współczynnika ściśliwości izotermicznej mieszaniny,...
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Preferential solvation in (amide+alcohol) binary mixtures. Part 1. The N- methylpyrrolidinone+ethanol mixture at T = 313.15 K: thermodynamic resultsand molecular dynamics calculations.
PublicationBadano zjawisko preferencyjnej solwatacji amidu (N-metylopyrrolidonu) przez etanol wykorzystując dwie uzupełniające się metody: bezpośrednich pomiarów własności termodynamicznych roztworu oraz symulacji komputerowych. W metodzie pierwszej dokonano pomiarów wielkości termodynamicznych takich jak: nadmiarowa energia swobodna mieszania, nadmiarowa objętość mieszania oraz współczynnika ściśliwości izotermicznej mieszaniny,...
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Structural and mechanical properties of hydroxyapatite coatings formed by ion-beam assisted deposition
PublicationThe ion-beam assisted deposition (IBAD) is an advanced method capable of producing crystalline coatings at low temperatures. We determined the characteristics of hydroxyapatite Ca10(PO4)6(OH)2 target and coatings formed by IBAD using X-ray photoemission spectroscopy (XPS), X-ray diffraction (XRD), scanning electron microscopy (SEM), atomic force microscopy (AFM) and energy dispersive X-ray (EDX). The composition of the coatings'...