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Search results for: chemia peptydów
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American Chemical Society
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The immunoregulatory effects of edeine analogues in mice
PublicationZbadano właściwości immunoregulatorowe kilku, otrzymanych na drodze syntezy, uproszczonych analogów peptydowego antybiotyku edeiny w testach in vivo i in vitro z wykorzystaniem modelu mysiego. Jako związek referencyjny zastosowano edeinę B. Otrzymane peptydy wykazywały efekt stymulacyny na proliferację splenocytów z użyciem konkawaliny, podczas gdy zastosowanie mitogenu powodowało hamowanie proliferacji splenocytów. Peptydy hamowały...
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Comparison of Headspace Solid-phase Microextraction, Headspace Single-drop Microextraction and Hydrodistillation for Chemical Screening of Volatiles in Myrtus Communis L
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Effect of protein-xanthophylls (PX) concentrate of alfalfa supplementation on physico-chemical properties of turkey breast and thigh muscles during ageing
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Ischemia during rest intervals between sets prevents decreases in fatigue during the explosive squat exercise: a randomized, crossover study
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Trypsin inhibitors from the garden four o’clock (Mirabilis jalapa) and spinach (Spinacia oleracea) seeds: Isolation, characterization and chemical synthesis
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The New Elastomeric Compounds Made of Butyl Rubber Filled with Phyllosilicates, Characterized by Increased Barrier Properties and Hydrophobicity and Reduced Chemical Degradation
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Trypsin inhibitor, antioxidant and antimicrobial activities as well as chemical composition of potato sprouts originating from yellow- and colored-fleshed varieties
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In silico study on the effects of carbonyl groups on chemical equilibrium of reactions with a polar product occurring under confinement in pores of activated carbons
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How to Improve Physico-Chemical Properties of Silk Fibroin Materials for Biomedical Applications?—Blending and Cross-Linking of Silk Fibroin—A Review
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From ashes to porous hierarchical nanocarbon electrode: Upcycling secondary waste materials through self-catalytic chemical vapour deposition
PublicationMetal and metal oxide particles are abundant in various ash-based wastes. Utilizing these as catalyst sources for the fabrication of carbon nanomaterials could present a valuable approach to reduce our reliance on non-renewable and costly catalyst sources, thereby facilitating large-scale nanomaterial production. In this context, secondary waste materials (SWMs) are by-products resulting from the (complete or partial) combustion...
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Rheological characteristics of oligomeric semiproducts gained via chemical degradation of polyurethane foam using crude glycerin in the presence of different catalysts
PublicationPolyurethane (PU) recycling is a topic of growing interest due to the increasing amount of polyurethane waste. The main purpose of polyurethane chemical recycling is to recover the starting polyol. In this study, a method of polyurethane thermochemical recycling, glycerolysis by means of crude glycerin, is proposed. This work presents a comparative study of commercial catalysts used in order to accelerate the decomposition process,...
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Chemical pollution and toxicity of water samples from stream receiving leachate from controlled municipal solid waste (MSW) landfill
PublicationThe present study was aimed to determine the impact of municipal waste landfill on the pollution level of surface waters, and to investigate whether the choice and number of physical and chemical parameters monitored are sufficient for determining the actual risk related to bioavailability and mobility of contaminants. In 2007–2012, water samples were collected from the stream flowing through the site at two sampling locations,...
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Toward mechanosynthesis of diamondoid sructures: viii. quantum-chemical molecular dynamics simulations of hexagonal silicon-iv structure synthesis with stm
Publicationw tej publikacji badano metodami kwantowo-chemicznymi różne strategie mechanosyntezy heksagonalnego krzemu iv. określono przybliżone warunki mechanosyntezy krzemu w formie lonsdaleitu za pomocą uhv-spm.
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Local structural and chemical ordering of nanosized Pt(3±δ)Co probed by multiple-scattering x-ray absorption spectroscopy
PublicationThis work reports a detailed investigation of the local structure and chemical disorder of a Pt(3±δ)Co thin film and Pt(3±δ)Co nanoparticles. We have used a combination of techniques including x-ray absorption spectroscopy (XAS), x-ray diffraction (XRD), and high-resolution transmission electron microscopy (TEM). The important effect of chemical ordering on pair and three-atom configurations has been studied using computer simulations...
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Corrosion Inhibition of Aluminium Alloy AA6063-T5 by Vanadates: Local Surface Chemical Events Elucidated by Confocal Raman Micro-Spectroscopy
PublicationChemical interactions between aqueous vanadium species and aluminium alloy AA6063-T5 were investigated in vanadate-containing NaCl solutions. Confocal Raman and X-ray photoelectron spectroscopy experiments were utilised to gain insight into the mechanism of corrosion inhibition by vanadates. A greenish-grey coloured surface layer, consisting of V+4 and V+5 polymerized species, was seen to form on the alloy surface, especially on...
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Chemical Composition of Atmospheric Air in Nemoral Scots Pine Forests and Submountainous Beech Forests: The Potential Region for the Introduction of Forest Therapy
PublicationStudies show that forests are one of the main recreational destinations. This can be explained by their beneficial effects on the health of their visitors, which can be attributed to compounds from the terpene group. The aim of this research was to determine the chemical composition of air in the interiors of Nemoral Scots pine forests and submountainous beech forests, with the determination of compounds of the terpene group. Samples...
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Polyamidoamine Dendrimers Decorated Multifunctional Polydopamine Nanoparticles for Targeted Chemo- and Photothermal Therapy of Liver Cancer Model
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Chemia analityczna
e-Learning CoursesChemia analityczna stoi na pograniczu dyscyplin i można ją generalnie podzielić na: chemię analityczną naukę o metodach analizy chemicznej (dyscyplina podstawowa teoretyczna); analizę chemiczną naukę o praktycznym zastosowaniu i wykorzystaniu metod analizy chemicznej. Przedmiot chemii analitycznej: rodzaje i wykorzystanie informacji analitycznych, Økryteria podziału i wyboru metod; podręczniki i charakterystyka podstawowych czasopism;...
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Błażej Kudłak dr hab. inż.
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Controlling of Structural Ordering and Rigidity of β-SiAlON:Eu through Chemical Cosubstitution to Approach Narrow-Band-Emission for Light-Emitting Diodes Application
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Anthropogenic enrichment of the chemical composition of bottom sediments of water bodies in the neighborhood of a non-ferrous metal smelter (Silesian Upland, Southern Poland)
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Isolation and characterization of stable nanofiber from turmeric spent using chemical treatment by acid hydrolysis and its potential as antimicrobial and antioxidant activities
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Influence of modification of the amino acids ionic liquids on their physico-chemical properties: Ionic liquids versus ionic liquids-supported Schiff bases
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Synergistic effect of carbon fibers and carbon nanotubes on improving thermal stability and flame retardancy of polypropylene: a combination of a physical network and chemical crosslinking
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Synthesis, physical–chemical properties and in vitro photodynamic activity against oral cancer cells of novel porphyrazines possessing fluoroalkylthio and dietherthio substituents
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The Effect of Mechanical Vibration during Transport under Model Conditions on the Shelf-Life, Quality and Physico-Chemical Parameters of Four Apple Cultivars
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Blood free Radicals Concentration Determined by Electron Paramagnetic Resonance Spectroscopy and Delayed Cerebral Ischemia Occurrence in Patients with Aneurysmal Subarachnoid Hemorrhage
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Interspecific distribution and co-associations of chemical elements in the liver tissue of marine mammals from the Polish Economical Exclusive Zone, Baltic Sea
PublicationPrzeprowadzono analizy próbek wątroby ssaków morskich z Polskiej Strefy Ekonomicznej Morza Bałtyckiego w celu oznaczenia szerokiej gamy pierwiastków (mikro- i makroelementy) z wykorzystaniem takich technik analitycznych jak ICP-MS, ICP-AES oraz CV-AAS.Badano zależności pomiędzy zawartością poszczególnych pierwiastków a wiekiem, płcią, miejscem bytowania, sposobem odżywiania i gatunkiem ssaków.
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Chemical-Assisted Mechanical Lapping of Thin Boron-Doped Diamond Films: A Fast Route Toward High Electrochemical Performance for Sensing Devices
PublicationThere is an urgent need for an effective and economically viable increase in electrochemical performance of boron-doped diamond (BDD) electrodes that are used in sensing and electrocatalytic applications. Specifically, one must take into consideration the electrode heterogeneity due to nonhomogenous boron-dopant distribution and the removal of sp2 carbon impurities saturating the electrode, without interference in material integrity....
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Chemical and biological characterization of Ocimum basilicum L. phenolic extract and essential oil derived through ultrasound and microwave-assisted extraction techniques
PublicationPlant-derived bioactive molecules are increasingly utilized in food processing as natural additives, driven by a growing interest in healthier lifestyles. This trend has spurred industries to reformulate products to meet the demands of health-conscious consumers. This study investigates the phenolic extract and essential oil of O. basilicum L. obtained via ultrasound-assisted extraction and microwave-assisted extraction, respectively. Characterization...
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Ellipsometric investigation of nitrogen doped diamond thin films grown in microwave CH4/H2/N2 plasma enhanced chemical vapor deposition
PublicationThe influence of N2 concentration (1%–8%) in CH4/H2/N2 plasma on structure and optical properties of nitrogen doped diamond (NDD) films was investigated. Thickness, roughness, and optical properties of the NDD films in the VIS–NIR range were investigated on the silicon substrates using spectroscopic ellipsometry. The samples exhibited relatively high refractive index (2.6 6 0.25 at 550 nm) and extinction coefficient (0.05 6 0.02...
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Formaldehyde detection with chemical gas sensors based on WO3 nanowires decorated with metal nanoparticles under dark conditions and UV light irradiation
PublicationWe report results of formaldehyde gas (CH2O) detection under dark conditions and UV light irradiation with pristine tungsten trioxide nanowires (WO3 NWs) and metal nanoparticles decorated WO3 NWs gas sensing layers. The resistive layers were deposited by one step aerosol assisted chemical vapor deposition (AACVD) on commercial alumina substrates with 10-pair interdigitated platinum electrodes. The elaborated gas sensors, based...
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Influence of chemical structure on physicochemical properties and thermal decomposition of the fully bio-based poly(propylene succinate-co-butylene succinate)s
PublicationIn this work, two polyesters and four copolyesters were studied. All materials were synthesized to obtain the monomers dedicated for thermoplastic polyurethane elastomers. For this type of PUR, the monomers should characterize by appropriate selected physicochemical properties and macromolecular structure distribution, which depends on synthesis conditions. The study of chemical structure with extensive and knowledgeable analysis...
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Janusz Stangret prof. dr hab. inż.
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Chemia, Budownictwo (stac.; II sem 21/22)
e-Learning CoursesMateriały do wykładu z przedmiotu Chemia dla studentów kierunku Budownictwo (studia I stopnia) semestru II (semestr letni). Tematyka kursu obejmuje podstawowe zagadnienia z chemii ogólnej, jak również specjalistyczne zagadnienia z zakresu chemii budowlanej, w tym: - podstawy chemii kwantowej, - reakcje chemiczne (stechiometria, podstawy termodynamiki i kinetyki reakcji), - fizykochemia wody, - roztwory wodne (stężenia,...
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Systemic Effects of Radiotherapy and Concurrent Chemo-Radiotherapy in Head and Neck Cancer Patients—Comparison of Serum Metabolome Profiles
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TROPSENSE PREMIA Development of a non-invassive breath test for early diagnosis of tropical diseases
ProjectsProject realized in Department of Metrology and Optoelectronics according to Umowa nr 329385/PnH/2016 agreement from 2016-11-04
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ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-INTERNATIONAL JOURNAL OF RESEARCH IN PHYSICAL CHEMISTRY & CHEMICAL PHYSICS
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CHEMICAL GEOLOGY
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CHEMICAL RECORD
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Wojciech Chrzanowski dr hab. inż.
PeopleWojciech Chrzanowski was born in 1952 in Toruń. He completed his studies in Chemical Technology in 1975, getting his MSc in Inorganic Technology (specialty: Anti-Corrosion Protection) At the Faculty of Chemistry, Gdańsk University of Technology (with distinction). Later this year he was employed in the Department of Analytical Chemistry of then Institute of Chemical Engineering and Measuring Techniques, initially as a technical...
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Robert Aranowski dr inż.
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Instytut Chemii Bioorganicznej Polskiej Akademii Nauk
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Instytut Chemii Fizycznej Polskiej Akademii Nauk
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Instytut Chemii Organicznej Polskiej Akademii Nauk
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CANADIAN JOURNAL OF CHEMISTRY-REVUE CANADIENNE DE CHIMIE
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International Review of Chemical Engineering - Rapid Communications (IRECHE)
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Kemija u Industriji-Journal of Chemists and Chemical Engineers
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Physical and Chemical Aspects of the Study of Clusters Nanostructures and Nanomaterials
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