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Wyniki wyszukiwania dla: POZZOLANIC ACTIVITY
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Nickel loaded zeolites FAU and MFI: Characterization and activity in water-phase hydrodehalogenation of TCE
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Vanadium complexes with salicylaldehyde-based Schiff base ligands—structure, properties and biological activity
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Ability of Yeast Metabolic Activity to Reduce Sugars and Stabilize Betalains in Red Beet Juice
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Bacterial ACC Deaminase Activity in Promoting Plant Growth on Areas Contaminated with Heavy Metals
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Polymeric bisphosphonate derivative of ciprofloxacin – synthesis, structural analysis and antibacterial activity of the prospective conjugate
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Preliminary antifungal activity assay of selected chlorine-containing derivatives of xanthone and phenoxyethyl amines
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Activity and Safety of Standard and Prolonged Capecitabine/Temozolomide Administration in Patients with Advanced Neuroendocrine Neoplasms
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Ordered TiO2 nanotubes: the effect of preparation parameters on the photocatalytic activity in air purification process
PublikacjaVertically ordered TiO2 nanotube arrays were synthesized by anodic oxidation of titanium foil in glycerol, ethylene glycol and water-based electrolytes. The effect of electrolyte composition, anodization voltage, ultrasonic treatment and calcination time on the morphology of the resulting thin films, as well as on their photocatalytic activity in toluene removal, used as a model volatile organic compound, was investigated. Toluene,...
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Synthesis and antiproliferative activity of conjugates of adenosine with muramyl dipeptide and nor-muramyl dipeptide derivatives
PublikacjaWe synthesized a series of MDP(D,D) and nor-MDP(D,D) derivatives conjugated with adenosine through a spacer as potential immunosuppressants. New conjugates were evaluated on two leukemia cell lines (Jurkat and L1210) and PBMC from healthy donors.
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Electrochemical activity and characterization of hybrid material consisted of poly(3,4- ethylenedioxythiophene) and silver hexacyanocobaltate
PublikacjaPrac przedstawiono charakterystykę elektrochemiczną oraz powierzchniową materiału hybrydowego składającego się z polimeru przewodzącego, poli(3,4-etylenodioksytiofenu) oraz nieorganicznej sieci typu redoks, heksacyjanokobaltanu srebra. Materiał scharakteryzowano technikami jak AFM, SEM. Skład materiału oznaczono za pomocą mikroanalizy rentgenowskiej EDX. Analiza potwierdziła obecność sieci nieorganicznej w materiale. Proporcja...
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photocatalytic activity of silver doped tio2 in vis and uv light, prepared by microemulsion method
PublikacjaDitlenek tytanu otrzymany w wyniku hydrolizy izopropanolanu tytanu oraz komercyjny katalizator TiO-6 (Catalysis Society of Japan, rutyl, wielkość cząstek 15 nm) zmodyfikowano srebrem metodą mikroemulsyjną. Aktywność fotokatalityczna otrzymanych nanokompozytów Ag-TiO2 została zbadana dla fotodegradacji fenolu pod działaniem promieniowania ultrafioletowego oraz widzialnego. Zaobserwowano, że na efektywność fotorozkładu modelowego...
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Chemical modification of natural immunomodulators tuftsin and muramyl dipeptide significantly influence their biological activity
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Antibacterial activity of core-shell CuxO@TiO2 photocatalyst under UV, vis and dark
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UV Curable Coatings Based on Urethane Acrylates Containing Eugenol and Evaluation of Their Antimicrobial Activity
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Optical activity of the guest azobenzene molecule generated by inclusion complexation with steroidal bile acids.
PublikacjaZsyntetyzowano krystaliczne kompleksy inkluzyjne azobenzenu z kwasami cholowym i deoksycholowym. Otrzymane związki inkluzyjne poddano badaniom przy wykorzystaniu spektroskopii dichroizmu kołowego w fazie stałej (KBr). Dodatni efekt Cottona, odpowiadający niskoenergetycznemu przejściu elektronowemu n-pi*, skorelowano z helikalnością M,M skręconej cząsteczki azobenzenu. Ponadto w celach porównawczych zmierzono dichroizm kołowy w...
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Optical activity of benzophenone and thiobenzophenone generated by spontaneous crystallization and inclusion complexation with cholic acid.
PublikacjaOtrzymano związki inkluzyjne benzofenonu i jego tioanalogu z kwasem cholowym. W zależności od stosowanej metody syntezy kompleksów inkluzyjnych benzofenonu powstawały one w dwóch różnych postaciach polimorficznych. Jedna z nich wykazuje istnienie cząsteczek gościa w czterech konformacjach, przy czym dominuje konformer o helikalności M. Struktura krystalograficzna kompleksu tiobenzofenonu z kwasem cholowym ujawniła obecność tylko...
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Comparative Assessment of Bacteriophage and Antibiotic Activity against Multidrug-Resistant Staphylococcus aureus Biofilms
PublikacjaProblems connected with biofilm-related infections and antibiotic resistance necessitate the investigation and development of novel treatment strategies. Given their unique characteristics, one of the most promising alternatives to conventional antibiotics are bacteriophages. In the in vitro and in vivo larva model study, we demonstrate that phages vB_SauM-A, vB_SauM-C, and vB_SauM-D are effective antibiofilm agents. The exposure...
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Microwave-assisted synthesis of a TiO2-CuO heterojunction with enhanced photocatalytic activity against tetracycline
PublikacjaA microwave method was used for the synthesis of TiO2-CuO oxide systems. A detailed investigation was made of the effect of the molar ratio of components (TiO2:CuO=9:1, 7:3, 5:5, 3:7, 1:9) on the crystalline structure and morphology. Transmission electron microscopy (TEM) confirmed the presence of octahedral and rod-shaped titania particles and sheet copper(II) oxide particles; moreover, HRTEM analysis indicated the presence of...
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Xanthone synthetic derivatives with high anticandidal activity and positive mycostatic selectivity index values
PublikacjaWith the current massive increases in drug-resistant microbial infection as well as the significant role of fungal infections in the death toll of COVID-19, discovering new antifungals is extremely important. Natural and synthetic xanthones are promising derivatives, although only few reports have demonstrated their antifungal mechanism of action in detail. Newly synthetized by us xanthone derivative 44 exhibited strong antifungal...
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Chapter 22. Antimicrobial and surface activity of 1-alkyl-3-methyl imidazolium derivatives
PublikacjaCiecze jonowe wykazują aktywność przeciwgrzybową oraz przeciwbakteryjną zależną od struktury badanego związku. Zbadano wpływ długości łańcucha alkilowego w kationie na aktywność przeciwmikrobiologiczną oraz przedstawiono zależność pomiędzy tą aktywnością a krytycznym stężeniem micelizacji imidazolowych cieczy jonowych.
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The impact of mass-media campaigns on physical activity: a review of reviews through a policy lens
PublikacjaBackground This review of reviews aimed to: (1) summarize the evidence from published reviews on the effectiveness of mass-media campaigns to promote physical activity (PA) or PA-related determinants (intermediate psychological and proximal outcomes) and (2) to identify policy-relevant recommendations related to successful PA campaigns. Methods An extensive literature search was performed on 1 March 2021. Reviews that evaluated...
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Sustainable Urban Mobility Plans: implementation process and indicators to evaluate effects on physical activity
PublikacjaBackground: Active mobility and public transport increase physical activity (PA) levels. With varying intensity and effectiveness, European cities implement Sustainable Urban Mobility Plans (SUMPs) to spur transport-related PA. Therefore, we aim to examine drivers and barriers to SUMP implementation and assess its influence on PA across European cities. Methods: We screened policy reports to gain insights into SUMP implementation...
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Ultrasonic-assisted Electrodeposition of Cu-Sn-TiO2 Nanocomposite Coatings with Enhanced Antibacterial Activity
PublikacjaCopper-based coatings are known for their high antibacterial activity. In this study, nanocomposite Cu–Sn–TiO2 coatings were obtained by electrodeposition from an oxalic acid bath additionally containing 4 g/dm3 TiO2 with mechanical and ultrasonic agitation. Ultrasound treatment was performed at 26 kHz frequency and 32 W/dm3 power. The influence of agitation mode and the current load on the inclusion and distribution of the TiO2...
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The evidence for the impact of policy on physical activity outcomes within the school setting: A systematic review
PublikacjaPurpose Despite the well-established health benefits of physical activity (PA) for young people (aged 4–19 years), most do not meet PA guidelines. Policies that support PA in schools may be promising, but their impact on PA behavior is poorly understood. The aim of this systematic review is to ascertain the level and type of evidence reported in the international scientific literature for policies within the school setting that...
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The Influence of External Additional Loading on the Muscle Activity and Ground Reaction Forces during Gait
PublikacjaAsymmetrical external loading acting on the usculoskeletal system is generally considered unhealthy. Despite this knowledge, carrying loads in an asymmetrical manner like carrying on one shoulder, with one hand, or on the strap across the torso is a common practice. This study is aimed at presenting the effects of the mentioned load carrying methods on muscle activity assessed by using thermal field and ground reaction forces....
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Conjugates of Ciprofloxacin and Levofloxacin with Cell-Penetrating Peptide Exhibit Antifungal Activity and Mammalian Cytotoxicity
PublikacjaSeven conjugates composed of well-known fluoroquinolone antibacterial agents, ciprofloxacin (CIP) or levofloxacin (LVX), and a cell-penetrating peptide transportan 10 (TP10-NH2) were synthesised. The drugs were covalently bound to the peptide via an amide bond, methylenecarbonyl moiety, or a disulfide bridge. Conjugation of fluoroquinolones to TP10-NH2 resulted in congeners demonstrating antifungal in vitro activity against human...
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Novel N-(aryl/heteroaryl)-2-chlorobenzenesulfonamide derivatives: synthesis and anticancer activity evaluation
PublikacjaA new series of N-(aryl/heteroaryl)-2-chlorobenzenesulfonamide derivatives 4-21 have been synthesized, and evaluated at the National Cancer Institute (USA) for their in vitro activities against a panel of 60 different human cancer cell lines. Among them, compounds 16, 20 and 21 exhibited remarkable cytotoxic activity against numerous human cancer cell lines. We found that sulfonamide derivative 21 appeared to be more selective...
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Health Enhancing Physical Activity Policies in Poland: Findings from the HEPA PAT Survey
PublikacjaInsufficient physical activity (PA) is one of major risk factors for serious diseases and premature mortality worldwide. Public policies to enhance PA across society are recognized as an effective tool against the problem. This paper presents the results of a comprehensive assessment of national-level PA policy approach in Poland. A standardized survey of Word Health Organization named the Health-Enhancing Physical Activity Policy...
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Paid work activity and entrepreneurial cognitions of students – evidence from European emerging economies
PublikacjaPurpose – This paper aims to investigate whether paid work activity (PWA) experience of students from five emerging economies is related to academic results and self-assessment of possessed entrepreneurial traits. Additionally, the authors verify the relationship between obtaining work experience and the willingness to start own business among students. Design/methodology/approach – Participants included 3,631 students of the first...
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Optical activity and electro-optic effect of l-arginine doped KDP single crystals
PublikacjaWe have used the modified polarimetric methods to study optical activity (OA) in the potassium dihydrogenphosphate (KDP) crystals doped with 0.7, 1.4 and 3.8 wt% L-arginine (L-arg) amino acid. Crystals were grown by the temperature reduction method. Small changes of the absolute eigen waves ellipticity and OA values in doped crystals were noted. We have experimentally determined the signs of OA in the [1 00] and [01 0] directions...
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Size-Controlled Synthesis of Pt Particles on TiO2 Surface: Physicochemical Characteristic and Photocatalytic Activity
PublikacjaDifferent TiO2 photocatalysts, i.e., commercial samples (ST‐01 and P25 with minority of rutile phase), nanotubes, well‐crystallized faceted particles of decahedral shape and mesoporous spheres, were used as supports for deposition of Pt nanoparticles (NPs). Size‐controlled Pt NPs embedded in TiO2 were successfully prepared by microemulsion and wet‐impregnation methods. Obtained photocatalysts were characterized using XRD, TEM,...
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The Impact of the Antigenic Composition of Chimeric Proteins on Their Immunoprotective Activity against Chronic Toxoplasmosis in Mice
PublikacjaToxoplasmosis may pose a serious threat for individuals with weakened or undeveloped immune systems. However, to date, there is no specific immunoprophylaxis for humans. Thus, the aim of this study was to evaluate the immunogenicity of three trivalent—SAG2-GRA1-ROP1L (SGR), SAG1L-MIC1-MAG1 (SMM), and GRA1-GRA2-GRA6 (GGG)—and two tetravalent—SAG2-GRA1-ROP1-GRA2 (SGRG) and SAG1-MIC1-MAG1-GRA2 (SMMG)—chimeric T. gondii proteins, as...
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Antibacterial Activity and Cytocompatibility of Bone Cement Enriched with Antibiotic, Nanosilver, and Nanocopper for Bone Regeneration
PublikacjaBacterial infections due to bone replacement surgeries require modifications of bone cement with antibacterial components. This study aimed to investigate whether the incorporation of gentamicin or nanometals into bone cement may reduce and to what extent bacterial growth without the loss of overall cytocompatibility and adverse effects in vitro. The bone cement Cemex was used as the base material, modified either with gentamicin...
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Preparation, characterization and anti-colitis activity of curcumin-asafoetida complex encapsulated in turmeric nanofiber
PublikacjaUlcerative colitis (UC) is a main form of inflammatory bowel disease (IBD). Asafoetida (ASF) and turmeric have traditionally been used for the treatment of various inflammatory diseases, including UC, because ASF is rich in sulfur compounds and turmeric contains curcumin (CUR). Turmeric nanofiber (TNF), the modified cell wall component of turmeric is considered to play important role in the human diet, health and can be used as...
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Synthesis, structure, DNA binding and anticancer activity of mixed ligand ruthenium(II) complex
PublikacjaIn order to obtain a potential chemotherapeutic which is not affected on the normal BALB/3T3 cell line, a new arene ruthenium(II) complex {[RuCl(L1)(η6-p-cymene)]PF6}2 · H2O has been synthesized by a direct reaction of precursor, [{(η6-p-cymene)Ru(μ-Cl)}2Cl2], with N,N-chelating ligand (L1 - 2,2′-bis(4,5-dimethylimidazole). The compound has been fully characterized by elemental analysis, X-ray diffraction, IR, UV–Vis and 1H, 13C...
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Carnivorous plants used for green synthesis of silver nanoparticles with broad-spectrum antimicrobial activity
PublikacjaIn this study, we exploit the anti-oxidative potential of four carnivorous plants to produce uniform and biologically active silver nanoparticles. The use of polyvinylpyrrolidone promoted syn-thesis of quasi-spherical nanoparticles characterized by stability and high uniformity. Their activity was tested against three human pathogens and three species of plant pathogenic bacteria. The study demonstrates the influence of synthesis...
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A strategy for GPS data processing in a precise local network during high solar activity
PublikacjaThis paper presents the analyses connected with reduction of errors from ionospheric refraction using GPS data from local satellite networks. This is particularly essential during rising solar activity. The Bernese GPS Software v. 4.2 was used, as an analytical tool. The test data included measurements from a geodynamic network SUDETES situated in the Sudety Mountains across the border between the Czech Republic and Poland. A local...
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Synthesis and antimicrobial activity of 6-sulfo-6-deoxy-D-glucosamine and its derivatives
Publikacja6-Sulfo-6-deoxy-D-glucosamine (GlcN6S), 6-sulfo-6-deoxy-D-glucosaminitol (ADGS) and their N-acetyl and methyl ester derivatives have been synthesized and tested as inhibitors of enzymes catalyzing reactions of the UDP-GlcNAc pathway in bacteria and yeasts. GlcN6S and ADGS at micromolar concentrations inhibited glucosamine-6-phosphate (GlcN6P) synthase of microbial origin. The former was also inhibitory towards fungal GlcN6P N-acetyl...
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The Effect of Titanium Oxyfluoride Morphology on Photocatalytic Activity of Fluorine-Doped Titanium(IV) Oxide
PublikacjaTitanium oxyfluoride (TiOF2) is a metastable product that can be obtained in a fluorine-rich environment. This material can also be a valuable precursor in the synthesis of titanium(IV) oxide (TiO2). However, the effect of TiOF2 morphology on the physicochemical properties of TiO2 has not been studied so far. In this work, single-phase TiOF2 was prepared by a solvothermal method. The as-synthesized samples exhibited a variety of...
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Chitosan, Collagen and Gelatin in the design of novel materials with antimicrobial acticity
PublikacjaMedical devices containing and releasing antiinfective agents directly on the site of injury are a common group of materials available and widely used in treating difficult to heal wounds. Sustained contact of the active agent to the damaged tissue, needed to inhibit infection and preservation of microbiological purity of the wound, is provided by the immobilization antimicrobial agents on the surface of the matrix material or...
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New 3D printable filaments with nanodiamonds, physicochemical additives characteristics and electrochemical activity
Dane BadawczeThis dataset contains the physicochemical analyses (XRD, Raman spectroscopy, BET analyses) and electrochemical analyses (CV, EIS) for a new 3D-printable composite has been developed dedicated to electroanalytical applications. Two types of diamondised nanocarbons - detonation nanodiamonds (DNDs) and boron-doped carbon nanowalls (BCNWs) - were added...
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Power of the SMR brainwaves in the mental imagery experiment in sport: the "Fitness Activity" scenario.
Dane BadawczeThe data were collected to perform research on the neural oscillation during mental imagery in sport. The main aim of the study was to examine the cortical correlates of imagery depending on instructional modality (guided vs self-produced) using various sport-related scripts. The research was based on the EEG signals recorded during the session with...
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Evaluation of antimicrobial activity of porous composites based on chitosan/poly (vinyl alcohol)
Dane BadawczeThe dataset contains the results of microbiological tests of composite porous materials whose activity was assessed for their ability to reduce the number of Escherichia coli and Staphylococcus aureus strain, representing the Gram (-) and Gram (+) bacteria, respectively.
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Synthesis and reactivity of O-acyl selenophosphates
PublikacjaThe synthesis of several new O-acyl selenophosphates were investigated. The stability and reactivity of the products were studied and related to their structure.
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Synthesis and reactivity of O-acyl selenophosphates.
PublikacjaMieszane bezwodniki kwasów monoselenofosforowych >P(Se)O-C(O)- w zależności od podstawników na atomie fosforu oraz karbonylowym atomie węgla izomeryzują do układów Se-mostkowych >P(O)Se-(O)C- oraz ulegają dekarboksylacji (dekarbonylacji i dekarboksylacji) do estrów Se-alkilowych >P(O)Se-. W eksperymantach krzyżowych następuje wzajemna wymiana grup acylowych pomiędzy cząsteczkami bezwodników.
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Synthesis and reactivity of O-acyl selenophosphates
PublikacjaPrzeprowadzono syntezę nowych selenofosforanów acylu. Badano stabilność i reaktywność tych bezwodników w odniesieniu do ich struktury.
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Antibacterial and antioxidant activity of the secondary metabolites from in vitro cultures of alice sundew (drosera aliciae)
PublikacjaRośliny owadożerne (D. aliciae) produkują metabolity wtórne, farmakologicznie czynne substancje. Na wzrost akumulacji tychże substancji w tkankach roślin owadożernych ma wpływ dodatek elicytora. W pracy przedstawiono zarówno optymalizacje warunków hodowli roślin, jak również prawdopodobne mechanizmy działania bakteriobójczego. Końcowego oznaczenia zawartości metabolitów w ekstraktach roślinnych dokonano techniką chromatografii...
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New Method for Photoactive Cement Preparation—Selected Mechanical Properties and Photocatalytic Activity of New Materials
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Glycerolic Licorice Extracts as Active Cosmeceutical Ingredients: Extraction Optimization, Chemical Characterization, and Biological Activity
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Aqueous Extracts of Selected Potentilla Species Modulate Biological Activity of Human Normal Colon Cells
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