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Search results for: DEHYDROGENAZA SACHAROPINY CANDIDA ALBICANS CHEMOTERAPEUTYKI PRZECIWGRZYBOWE
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GIST - Female, 64 - Tissue image [815073000521641]
Open Research DataThis is the histopathological image of STOMACH tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.
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Polyp of stomach and duodenum - Female, 60 - Tissue image [8160730027017541]
Open Research DataThis is the histopathological image of STOMACH tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.
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Polyp of stomach and duodenum - Female, 60 - Tissue image [8160730027019551]
Open Research DataThis is the histopathological image of STOMACH tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.
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A CRISPR/Cas9-Based Mutagenesis Protocol for Brachypodium distachyon and Its Allopolyploid Relative, Brachypodium hybridum
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Hayat Ullah PhD Candidate
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Enzymes of the L-methionine biosynthetic pathway as novel molecular targets for antifungal chemotherapy
ProjectsProject realized in Department of Pharmaceutical Technology and Biochemistry according to UMO-2020/39/B/NZ7/01519 agreement from 2021-07-08
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OECD Guidelines for Micro Statistics on Household Wealth
PublicationThis report reflects the contributions of members of the OECD Expert Group on Micro Statistics on Household Income, Consumption and Wealth. Members of the Expert Group included representatives from National Statistical Offices – Bob McColl (Chair, Australia); Alison Hale (Canada); Andre Bustamante and David Niculcar (Chile); Henrik Sejerbo Soerensen (Denmark); Yafit Alfandari (Israel); Shinji Yoshioka (Japan); Sinho Kim...
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GIST - Female, 64 - Tissue image [815073000521631]
Open Research DataThis is the histopathological image of STOMACH tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.
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Badanie właściwości fotokatalitycznych, biobójczych i magnetycznych tlenku tytanu(IV) modyfikowanego nanocząstkami monoi bimetalicznymi Pt, Ag, Cu, Au oraz Pd
PublicationZakres badań obejmował otrzymywanie i charakterystykę nanokompozytów tlenku tytanu(IV) modyfikowanego mono- oraz bimetalicznymi nanocząstkami metali platyny, palladu, złota, srebra oraz miedzi. Zbadano wpływ zawartości metali, matrycy TiO2 oraz połączeniami metali na właściwości fotokatalityczne, biobójcze i magnetyczne otrzymanych nanokompozytów TiO2. Aktywność fotokatalityczną zbadano w reakcji degradacji modelowych związków oraz...
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Laboratoryjny biofiltr strużkowy do oczyszczania powietrza z lotnych związków organicznych o charakterze odorowym
PublicationW pracy przedstawiono wyniki badań doświadczalnych procesu dezodoryzacji powietrza zanieczyszczonego parami toluenu w biofiltrze ze złożem zraszanym (tj. w biofiltrze strużkowym). Zaproponowano układ badawczy do procesu biofiltracji, oparty na bioreaktorze dwusekcyjnym, wypełnionym ceramicznymi pierścieniami Raschiga. Złoże biofiltra zaszczepiono drobnoustrojami z rodzaju Candida. Jako ciecz zraszającą stosowano wodny roztwór soli...
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ARGENTUM DNA topoisomerase inhibitors with acridine and acridone scaffold as a novel antifungal agents
ProjectsProject realized in Department of Pharmaceutical Technology and Biochemistry according to DEC-24/2020/IDUB/I.3.3 agreement from 2020-11-17
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Imidazoacridinone C-1311 induces both autophagy and senescence in human lung cancer A549 cells
PublicationNiedrobnokomórkowy rak płuc (ang. NSCLC, non-small cell lung cancer), stanowiący blisko 80-87% wszystkich przypadków, jest najczęściej występującą formą raka płuc. Skuteczność dotychczas stosowanych chemoterapeutyków w stosunku do tej formy raka jest bardzo ograniczona dlatego poszukuje się nowych związków o lepszych właściwościach leczniczych. Imidazoakrydon C-1311 wykazuje wysoką aktywność cytotoksyczną wobec komórek niedrobnokomórkowego...
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Molekularne podstawy selektywnej toksyczności N-podstawionych pochodnych antybiotyku przeciwgrzybowgo Nystatyny A1
ProjectsProject realized in Faculty of Chemistry according to UMO-2011/01/N/NZ1/05269 agreement from 2011-12-07
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Testing Stability of Digital Filters Using Optimization Methods with Phase Analysis
PublicationIn this paper, novel methods for the evaluation of digital-filter stability are investigated. The methods are based on phase analysis of a complex function in the characteristic equation of a digital filter. It allows for evaluating stability when a characteristic equation is not based on a polynomial. The operation of these methods relies on sampling the unit circle on the complex plane and extracting the phase quadrant of a function...
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Fluoroaromatic substituents attached to carbon nanotubes help to increase oxygen concentration on biocathode in biosensors and biofuel cells
PublicationBased on the known ability of perfluorodecalin/perfluorohydrocarbons to enhance oxygen solubility we modified oxygen sensitive biocathode by adding perfluorinated components to the catholite. This procedure improved the efficiency of the oxygen sensitive cathodes. Glassy carbon electrodes covered with single-wall carbon nanotubes (SWCNTs) with covalently bonded perfluoroaromatic groups were shown to be more sensitive to oxygen,...
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Synteza, badania strukturalne i spektroskopowe kompleksów cynku i kadmu z ligandem tris(2,6-diizopropylofenoksy)silanotiolanowym
PublicationW pracy doktorskiej przedstawiono nowy związek krzemo-siarkowy tris(2,6-diizopropylofenoksy)silanotiolanowy (TDST) zastosowany do syntezy modelowych kompleksów cynku i kadmu, które modelują bezpośrednio środowisko jonu metalu w β anhydrazie węglanowej oraz dehydrogenazie alkoholowej. Zastosowanie związku krzemo-siarkowego tris(2,6-diizopropylofenoksy)silanotiolanowy (TDST) jako liganda do syntezy modelowych kompleksów cynku i kadmu...
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Przemiany metaboliczne in vitro przeciwnowotworowej pochodnej imidazoakrydonu, C-1311, i jej wpływ na aktywność wybranych izoenzymów cytochromu P450
PublicationPrzedmiotem badań przedstawionych w niniejszej pracy jest aktywna przeciwnowotworowo pochodna należąca do grupy imidazoakrydonów, tj. C-1311, i jej analog 8-metoksylowy, związek C-1330, zsyntetyzowane w Katedrze Technologii Leków i Biochemii Politechniki Gdańskiej. Wstępne badania wykazały brak wyraźnej reaktywności C-1311 i C-1330 wobec wybranych rekombinantowych ludzkich izoenzymów cytochromu P450,...
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Peptide conjugates of lactoferricin analogues and antimicrobials—Design, chemical synthesis, evaluation of antimicrobial activity and mammalian cytotoxicity
PublicationEight new peptide conjugates composed of modified bovine lactoferricin truncated analogues (LFcinB) and oneof the three antimicrobials — ciprofloxacin (CIP), levofloxacin (LVX), and fluconazole (FLC) — were synthesized. Four different linkers were applied to connect a peptide and an antimicrobial agent. The FLC-containing peptidic conjugates were synthesized using the “click chemistry” method. This novel approach is reported here...
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The use of fungi in biofiltration to remove hydrophobic volatile organic compounds
PublicationThe growing importance placed on air quality by environmental regulations and public opinion necessitate the minimization and removal of volatile organic compound emissions (VOCs), including odours. The removal of hydrophobic VOCs from the air by biological methods remains a major technical challenge (despite its importance in the shift to green engineering). A potential solution to this challenge is the use of fungi in biofiltration....
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Semisynthetic analogs of a polyene macrolide antifungal antibiotic of improved selective toxicity
ProjectsProject realized in Department of Pharmaceutical Technology and Biochemistry according to UMO-2014/13/B/NZ7/02305 agreement from 2015-01-28
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Anticancer and antimicrobial properties of novel η6-p-cymene ruthenium(ii) complexes containing a N,S-type ligand, their structural and theoretical characterization
PublicationRuthenium(II) complexes are lately of great scientific interest due to their chemotherapeutic potential asanticancer and antimicrobial agents. Here we present the synthesis of new pyrazole carbothioamidederivatives and their four arene–ruthenium complexes. The title compounds were characterized with theapplication of IR, NMR, mass spectrometry, elemental analysis and X-ray diffraction. Additionally, for newcomplexes DFT calculations...
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Xanthone synthetic derivatives with high anticandidal activity and positive mycostatic selectivity index values
PublicationWith 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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Preparation of Ag/Cu-doped titanium (IV) oxide nanoparticles in W/O microemulsion
PublicationNanocząstki Cu-TiO2 oraz Ag/Cu-TiO2 otrzymano w mikroemulsji W/O. Właściwości fotokatalityczne zbadano w procesie degradacji fenolu (0,21mM) w zakresie światła widzialnego. Właściwości biobójcze zbadano poprzez wyznaczenie minimalnego stężenia zahamowania wzrostu (MIC) na szczepach bakterii E. coli, St. aureus oraz grzybów S. Cerevisiae i z rodziny Candida. Dla otrzymanych fotokatalizatorów określono wpływ stężenia domieszki metali...
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‘Acridines’ as New Horizons in Antifungal Treatment
PublicationFrequent fungal infections in immunocompromised patients and mortality due to invasive mycosis are important clinical problems. Opportunistic pathogenic Candida species remain one of the leading causes of systemic mycosis worldwide. The repertoire of antifungal chemotherapeutic agents is very limited. Although new antifungal drugs such as lanosterol 14α-demethylase and β-glucan synthase inhibitors have been introduced into clinical...
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Supplementary material for: Fungal Planet description sheets: 1478–1549
Open Research DataNovel species of fungi described in this study include those from various countries as follows: Australia, Bolivia, Brazil, Bulgaria, Canada, China, Denmark, Ecuador (Galapagos), Finland, France, India, Iran, Israel, Italy, Namibia, Netherlands, Norway, Pakistan, Poland, Portugal, Qatar, South Africa, South Korea, Spain, Sweden, Thailand, Taiwan region...
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Application of fiber optic sensors using Machine Learning algorithms for temperature measurement of lithium-ion batteries
PublicationOptical fiber sensorsusing low-coherence interferometry require processing ofthe output spectrum or interferogramto quickly and accurately determine the instantaneous value of the measured quantity, such as temperature.Methods based on machine learning are a good candidate for this application. The application of four such methods in an optical fiber temperature sensoris demonstrated.Using aZnO-coated...
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Ewa Kozłowska dr inż.
PeopleEwa Kozłowska has graduated from Gdansk University of Technology in Mechanical and Medical Engineering. She is currently a PhD student at Gdańsk University of Technology in the discipline of mechanical engineering working on the topic of laser surface modifications, heat transfer and also medical device designing with the usage of computer collaboration tools by engineers and physicians.. She’s been taking part in different ERASMUS+...
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Data from the survey on factors determining the employment of the Gdańsk University of Technology graduates’ in the opinion of entrepreneurs
Open Research DataThe dataset includes data from the survey on factors determining the employment of the Gdańsk University of Technology (GUT) graduates’ in the opinion of entrepreneurs. The survey was conducted in 2017. The research sample included 102 respondents representing various firms from Pomeranian Voivodship. The study concerned i.a. factors determining the...
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The mechanism of overcoming multidrug resistance (MDR) of fungi by amphotericin B and its derivatives
PublicationPrzeprowadzono badania porównawcze w celu określenia aktywności i cytotoksyczności amfoterycyny B (AmB) i jej pochodnych wobec standardowego szczepu S. cerevisiae i jego transformantów zawierających geny C. albicans kodujące białka oporności wielolekowej (MDR) typu ABC i MFS. Pochodne AmB: amid 3-dimetyloaminopropylowy amfoterycyny B oraz ester metylowy N-metylo-N-D-fruktopiranozylo-amfoterycyny B wykazały efekt fungistatyczny...
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EM-Driven Multi-Objective Design of Impedance Transformers By Pareto Ranking Bisection Algorithm
PublicationIn the paper, the problem of fast multi-objective optimization of compact impedance matching transformers is addressed by utilizing a novel Pareto ranking bisection algorithm. It approximates the Pareto front by dividing line segments connecting the designs found in the previous iterations, and refining the obtained candidate solutions by means of poll-type search involving Pareto ranking. The final Pareto set is obtained using...
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Maria Ferlin MSc
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Biocomposites from recycled resources as candidates for laboratory reference material to validate analytical tools used in organic compounds emissions investigation
PublicationA suitably chosen reference material should meet specific criteria like representing one of the compound classes most commonly occurring in indoor materials as well as having optimal long-term stability during storage and transport to its destination point and having a compact size. The described interdisciplinary pilot research was aimed to develop and characterize a polymer-based candidate for the laboratory reference material...
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Evaluation of adhesion strength, corrosion, and biological properties of the MWCNT/TiO2 coating intended for medical applications
PublicationMulti-wall carbon nanotube (MWCNT) coatings are gaining increasing interest because of their special properties used in many science fields. The titania coatings are known for their improvement of osteoblast adhesion, thus changing the surface architecture. Bi-layer coatings comprising 0.25 wt% of the MWCNTs and 0.30 wt% of titania (anatase structure) were synthesized in a two-stage procedure using the electrophoretic deposition...
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PVA-Based Films with Strontium Titanate Nanoparticles Dedicated to Wound Dressing Application
PublicationBioactive materials may be applied in tissue regeneration, and an example of such materials are wound dressings, which are used to accelerate skin healing, especially after trauma. Here, we proposed a novel dressing enriched by a bioactive component. The aim of our study was to prepare and characterize poly(vinyl alcohol) films modified with strontium titanate nanoparticles. The physicochemical properties of films were studied,...
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Tonality Estimation and Frequency Tracking of Modulated Tonal Components
PublicationA novel method for tonality estimation and frequency tracking of tonal components modulated in frequency and amplitude is presented. The algorithm detects the local maxima of magnitude spectra corresponding to three contiguous frames of a signal and matches them into the tonal track candidates. The magnitude-based and phase-based methods are used to estimate the frequency jumps between spectrum maxima belonging to the tonal track...
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Band engineering of BiOBr based materials for photocatalytic wastewater treatment via advanced oxidation processes (AOPs) – A review
PublicationSemiconductor based photocatalysts have been an efficient technology for water and wastewater remediation, addressing the concepts of green chemistry and sustainable development. Owing to narrow and suitable band structure, BiOBr is a promising candidate for efficient wastewater treatment via photocatalysis. Enhancement of photocatalytic properties can be obtained by various techniques like doping, element rich strategy, facet...
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Tubular adenocarcinoma - Male, 73 - Tissue image [7100730013396711]
Open Research DataThis is the histopathological image of STOMACH tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: VS200 Olympus slide scanner (20x magnification) and saved to DICOM format.
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Rak trzustki – przyczyny oporności na chemioterapię
PublicationMimo ogromnego postępu jaki dokonał się w ciągu ostatnich dekad w diagnostyce, leczeniu i zapobieganiu wielu typom nowotworów, współczynnik przeżywalności w przypadku raka trzustki nadal pozostaje bardzo niski. Rak trzustki należy do bardzo źle rokujących i opornych na leczenie nowotworów. Wynika to w głównej mierze z braku skutecznej diagnostyki na wczesnym etapie rozwoju nowotworu oraz nieefektywnej terapii. U większości pacjentów...
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Docking simulations, Molecular properties and ADMET studies of novel Chromane6,7diol analogues as potential inhibitors of Mushroom tyrosinase
PublicationResearch on inhibition of tyrosinase enzyme has attained significant value, because tyrosinase inhibitors have potential applications in medicine, cosmetics (as whitening agents) and in agriculture (as bioinsecticides). Determination and elucidation of new tyrosinase inhibitors are not only beneficial for medical purposes, but their promising applications in improving food quality and nutritional...
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Mohamed Abouzid
PeoplePassionate about clinical sciences and epigenetics
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Complex Root Finding Algorithm Based on Delaunay Triangulation
PublicationA simple and flexible algorithm for finding zeros of a complex function is presented. An arbitrary-shaped search region can be considered and a very wide class of functions can be analyzed, including those containing singular points or even branch cuts. The proposed technique is based on sampling the function at nodes of a regular or a self-adaptive mesh and on the analysis of the function sign changes. As a result, a set of candidate points...
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Electrochemicalsynthesis of 3D nano-/micro-structured porous polypyrrole
PublicationIn this work, electrosynthesis of electroactive, 3D nano-/micro-structured porous polypyrrole film is presented. The PPy film was synthesized potentiostatically in a one-step process from aqueous solution of pyrrole and lithium perchlorate. The growth mechanism of such structure included: the formation of typical globular PPy film, followed by the formation of the PPy fibers, which then took part in the formation of 3D highly porous...
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The effect of nanoparticles size on photocatalytic and antimicrobial properties of Ag-Pt/TiO2 photocatalysts
PublicationAg-Pt-modified TiO2 nanocomposites were synthesized using the sol–gel method. Bimetallic modified TiO2 nanoparticles exhibited improved photocatalytic activity under visible-light irradiation, better than monometallic Ag/TiO2 and Pt/TiO2 nanoparticles (NPs). All modified powders showed localized surface plasmon resonance (LSPR) in visible region. The photocatalysts’ characteristics by X-ray diffractometry (XRD), scanning transmission...
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Antifungal Activity of Capridine β as a Consequence of Its Biotransformation into Metabolite Affecting Yeast Topoisomerase II Activity
PublicationIn the last few years,increasing importance is attached to problems caused by fungal pathogens. Current methods of preventing fungal infections remain unsatisfactory. There are several antifungal compounds whichare highly effective in some cases, however, they have limitations in usage: Nephrotoxicity and other adverse effects. In addition, the frequent use of available fungistatic drugs promotes drug resistance....
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Role of Fungi in Biodegradation of Imidazolium Ionic Liquids by Activated Sewage Sludge
PublicationIonic liquids (ILs), due to their specific properties, can play the role of persistent water contaminants. Fungi manifest the ability to decompose hardy degradable compounds, showing potential in the biodegradation of ILs, which has been studied extensively on sewage sludge; however, attention was drawn mainly to bacterial and not fungal species. The aim of the research was to determine the significance of fungi in ILs’ biodegradation...
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Seasonal Patterns and Trends in Dermatoses in Poland
PublicationThe amount of data available online is constantly increasing, including search behavior and tracking trends in domains such as Google. Analyzing the data helps to predict patient needs and epidemiological events more accurately. Our study aimed to identify dermatology-related terms that occur seasonally and any search anomalies during the SARS-CoV-2 pandemic. Methods: The data were gathered using Google Trends, with 69 entries...
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On the rising extra storage capacity of ultra-small Fe3O4particles functionalized with HCS and their potential as high-performance anode material for electrochemical energy storage
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Frank Llovera phd candidate
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Salome Khinikadze PhD candidate
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Etienne Gatera ph.D Candidate
People