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Tytuł:
Surfaceome of pathogenic yeasts, Candida parapsilosis and Candida tropicalis, revealed with the use of cell surface shaving method and shotgun proteomic approach
Autorzy:
Karkowska-Kuleta, Justyna
Zajac, Dorota
Bochenska, Oliwia
Kozik, Andrzej
Powiązania:
https://bibliotekanauki.pl/articles/1038923.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
cell surface shaving
proteomics
fungal pathogens
cell wall
Candida
Opis:
In the course of infections caused by pathogenic yeasts from the genus Candida, the fungal cell surface is the first line of contact with the human host. As the surface-exposed proteins are the key players in these interactions, their identification can significantly contribute to discovering the mechanisms of pathogenesis of two emerging pathogens from this genus, C. parapsilosis and C. tropicalis. Therefore, the aim of the present study was to identify the cell wall-attached proteins of these two species with the use of cell surface shaving and a shotgun proteomic approach. Different morphological forms of C. parapsilosis and C. tropicalis cells obtained after growth under various conditions were subjected to this treatment. This allowed to indicate the most abundant cell surface proteins on the basis of the normalized spectral abundance factors. In case of yeast-like forms these were, among others, proteins similar to a chitinase, glyceraldehyde-3-phosphate dehydrogenase and an inducible acid phosphatase for C. parapsilosis, and a constitutive acid phosphatase, pyruvate decarboxylase and glyceraldehyde-3-phosphate dehydrogenase for C. tropicalis. In case of pseudohyphal forms, proteins similar to a cell surface mannoprotein Mp65, chitinase and glycosylphosphatidylinositol-anchored transglycosylase Crh11 were identified at the cell surface of C. parapsilosis. The Rbt1 cell wall protein, a hyphally regulated cell wall protein and proteins from agglutinin-like sequence protein family were found as the most abundant on C. tropicalis pseudohyphae. Apart from the abovementioned proteins, several additional covalently bound and atypical cell wall proteins were also identified. These results extend the current knowledge regarding the molecular basis of virulence of these two non-albicans Candida species.
Źródło:
Acta Biochimica Polonica; 2015, 62, 4; 807-819
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Surface Coat Differences between Invasive Entamoeba histolytica and Non-Invasive Entamoeba dispar
Autorzy:
González-Robles, A.
CHÁVEZ-MUNGUÍA, Bibiana
SALAZAR‑VILLATORO, Lizbeth
LAGUNES-GUILLÉN, Anel
HERNÁNDEZ-RAMÍREZ, Verónica Ivonne
TALAMÁS‑ROHANA, Patricia
MARTÍNEZ-PALOMO, Adolfo
Powiązania:
https://bibliotekanauki.pl/articles/763748.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Jagielloński. Wydawnictwo Uniwersytetu Jagiellońskiego
Tematy:
Amebiasis, Entamoeba histolytica, Entamoeba dispar, Cell surface, Concanavalin A.
Opis:
Using ultrastructural cytochemical techniques we have found differences in the distribution of surface coat components between the invasive protozoan parasite Entamoeba histolytica and the non-invasive Entamoeba dispar. Carbohydrate-containing components and anionic sites in the cell surface of both species were detected by staining with ruthenium red and cationized ferritin, respectively. Ruthenium red staining revealed a thicker surface coat in E. histolytica trophozoites, whereas trophozoites of E. dispar showed a higher concentration of cationized ferritin particles on its surface. Mannose or glucose residues were found at the plasma membrane of both parasites treated with Concanavalin A (Con A)-peroxidase; the surface reaction product was more evident in E. dispar, compared with E. histolytica. Con A rapidly produced surface caps in E. histolytica trophozoites, whereas E. dispar showed a much less efficient mobilization of surface Con A receptors. Agglutination with Con A produced much larger clumps in E. histolytica in comparison with E. dispar. In turn, biotinylation assays revealed striking differences in the composition of surface membrane proteins in both amebic species. Overall, these results further emphasize the phenotypic differences between these two common parasites of the human intestinal tract, once considered to be the same protozoan.
Źródło:
Acta Protozoologica; 2015, 54, 3
1689-0027
Pojawia się w:
Acta Protozoologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cell outer membrane mimetic surface as a material with improved hemocompatibility
Autorzy:
Trzaskowski, M.
Butruk, B.
Ciach, T.
Powiązania:
https://bibliotekanauki.pl/articles/115627.pdf
Data publikacji:
2011
Wydawca:
Fundacja na Rzecz Młodych Naukowców
Tematy:
phosphatidylcholine
polyurethane
cell outer membrane mimetic surface
artificial heart
Opis:
The phenomenon of blood coagulation on the surfaces of implantable devices such as artifi cial blood vessels, valves or hearts is the major problem that has to be taken into consideration during the construction of such devices. Since the main factor that has an infl uence on clotting of blood is the surface of the material the device is made of, numerous attempts has already been undertaken to modify surfaces of existing materials in order to provide necessary protection against clot formation, very often by coating the materials with bio-active substances. The aim of presented study was to create a coating of phosphatidylcholine that would mimic natural cell outer membrane on the surface of polyurethane — a material already in use in construction of cardiovascular implants. The obtained coated materials have been evaluated with the use of FT-IR/ATR spectroscopy. The change in contact angle of modifi ed material was also investigated. Finally in vitro cytotoxicity tests were performed in order to examine biocompatibility of obtained material.
Źródło:
Challenges of Modern Technology; 2011, 2, 4; 7-10
2082-2863
2353-4419
Pojawia się w:
Challenges of Modern Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Immunoblot analysis of immune response to cell surface antigens of different Helicobacter pylori strains
Autorzy:
Karczewska, E
Wyle, F.
Tarnawski, A.
Powiązania:
https://bibliotekanauki.pl/articles/70270.pdf
Data publikacji:
1996
Wydawca:
Polskie Towarzystwo Fizjologiczne
Tematy:
Western blot zob.immunoblot
gastric ulcer
protease
lipase
duodenal ulcer
Helicobacter pylori
gastric carcinoma
immunoblot analysis
peptic ulcer
cell surface
antigen
Western blotting zob.immunoblotting
ammonia
cytotoxin
rabbit serum
immune response
Źródło:
Journal of Physiology and Pharmacology; 1996, 47, 1
0867-5910
Pojawia się w:
Journal of Physiology and Pharmacology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Low-active high-density Noctiluca scintillans cells in surface seawater
Autorzy:
Tada, K.
Asahi, T.
Kitatsuji, S.
Nomura, M.
Yamaguchi, H.
Ichimi, K.
Powiązania:
https://bibliotekanauki.pl/articles/2079194.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
Noctiluca scintillans
cell
dinoflagellate
mesozooplankton
adenosine triphosphate
sea surface
surface water
activity
Opis:
Noctiluca scintillans is an important member of the mesozooplankton in terms of biomass and production in the Seto Inland Sea, Japan. The densities and adenosine triphosphate (ATP) contents of N. scintillans cells were measured. Vertical profiles of N. scintillans cellular activity in the coastal water were determined and the ATP contents were high at middle layers, with a maximum depth of 10 m. ATP contents were low in the surface and lower layers. These results suggest that active N. scintillans cells in subsurface layers with low density play an important role in the coastal ecosystem, and high-density cells in the surface water are not active.
Źródło:
Oceanologia; 2020, 62, 3; 402-407
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mechanosensitivity of cell membrane may govern creep-strain recovery, osmotic expansion and lysis
Autorzy:
Pawłowski, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/1040543.pdf
Data publikacji:
2009
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
mechanosensitivity
caveolae
exocytosis
surface tension
endocytosis
cell membrane
Opis:
A simple theoretical model considering cell membrane mechanosensitivity can accurately describe published experimental data on membrane area creeping and recovery, and on osmotic expansion and rupture. The model to data fit reveals real values of membrane tension and elasticity modulus, and the parameters describing membrane organization and kinetics of mechanosensitive membrane traffic, including small solute transport, water permeability, endocytosis, exocytosis, and caveolae formation. This estimation allows for separation and quantitative analysis of the participation of different processes constituting the response of plasmalemma to short time-scale membrane load. The predicted properties of the model were verified for membrane stretching at different osmotic pressures. Finally, a simple hypothesis concerning stressed cell membrane breakdown is postulated.
Źródło:
Acta Biochimica Polonica; 2009, 56, 3; 471-480
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ stresu metabolicznego na biodegradację chloropochodnych toluenu i modyfikację właściwości powierzchniowych komórek szczepu Raoultella planticola SA2
Impact of metabolic stress on biodegradation of chlorotoluene derivatives and modification of Raoultella planticola SA2 surface characteristics
Autorzy:
Pacholak, A.
Smułek, W.
Kaczorek, E.
Powiązania:
https://bibliotekanauki.pl/articles/237327.pdf
Data publikacji:
2018
Wydawca:
Polskie Zrzeszenie Inżynierów i Techników Sanitarnych
Tematy:
środowisko gruntowo-wodne
toksyczne związki organiczne
izomery chlorotoluenu
biodegradacja
szczep Raoultella planticola SA2
potencjał dzeta
przepuszczalność błony komórkowej
hydrofobowość powierzchni komórki
stres metaboliczny
soil-water environment
toxic organic compounds
chlorotoluene isomers
biodegradation
Raoultella planticola SA2 strain
zeta potential
membrane permeability
cell surface hydrophobicity
metabolic stress
Opis:
Izomery chlorotoluenu są stosowane w wielu dziedzinach przemysłu, a ich szerokie wykorzystanie wiąże się z niekontrolowanym uwalnianiem do środowiska. Stąd konieczne jest ich usuwanie przede wszystkim ze środowiska gruntowo-wodnego. Do usuwania zanieczyszczeń organicznych ze środowiska wykorzystuje się wiele metod fizykochemicznych, których podstawową wadą jest problem z dalszym ich zagospodarowaniem. Z tego względu coraz większym zainteresowaniem cieszą się metody biologiczne, wykorzystujące zdolności drobnoustrojów do degradacji związków organicznych. W badaniach laboratoryjnych określono wpływ długotrwałego kontaktu szczepu Raoultella planticola SA2 z izomerami chlorotoluenu na przebieg biodegradacji tych związków. Istotnym elementem badań była także ocena wpływu każdego z izomerów chlorotoluenu na właściwości powierzchniowe mikroorganizmów prowadzących ich biodegradację. W tym celu określono zmiany w przepuszczalności błony komórkowej, potencjału dzeta komórek bakteryjnych oraz hydrofobowości ich powierzchni. Sprawdzono również, czy podatność wybranych izomerów na biodegradację zmienia się po długotrwałym kontakcie mikroorganizmów z degradowanymi związkami (tzw. stres metaboliczny). Obserwowane różnice między biodegradacją poszczególnych izomerów chlorotoluenu wykazały, że związki te – mimo podobnych właściwości fizycznych – w różnym stopniu ulegały biodegradacji oraz bardzo różnie oddziaływały na komórki mikroorganizmów. Stwierdzono, że ważnym elementem podczas biodegradacji chlorowych związków aromatycznych był długotrwały kontakt mikroorganizmów z tymi związkami. Wyniki badań wykazały także istotny wpływ położenia atomu chloru w izomerach chlorotoluenu na ich biodegradację związków oraz właściwości powierzchniowe mikroorganizmów. Drobnoustroje poddane długotrwałemu oddziaływaniu z izomerami chlorotoluenów przeprowadzały ich biodegradację szybciej i bardziej skutecznie. Zmianom uległy również właściwości powierzchniowe komórek mikroorganizmów.
Chlorotoluene isomers are used in a number of industries and their wide application results in the uncontrolled release of these compounds to the environment. Therefore, their removal is required primarily from the soil-water environment. Numerous physicochemical methods are in use to remove organic compounds from the ecosystem. However, their primary disadvantage is a question of further utilization of substances removed. Therefore, biological methods that employ microbial ability to degrade toxic organic compounds become increasingly popular. In the study, effect of a long-term contact between the Raoultella planticola SA2 strain and chlorotoluene isomers on biodegradation of these compounds was determined. Impact evaluation of each isomer on surface characteristics of microorganisms involved in the biodegradation process was another significant component of the research. Therefore, changes in the membrane permeability, zeta potential and bacterial cell surface hydrophobicity were measured. Further, effect of prolonged contact with the microorganisms (so-called metabolic stress) on susceptibility of selected isomers to biodegradation was examined. The observed differences between biodegradation of individual chlorotoluene isomers demonstrated that despite similar physical characteristics, a degree of their biodegradation varied as well as their effects on the microbial cells. The long-term contact of chloroaromatic compounds with the microorganisms was an important factor during their biodegradation. Moreover, the results indicated that the chlorine atom position had a strong impact on the chlorotoluene isomer biodegradation and the bacterial surface properties. Bacteria under the long-term stress conditions were able to degrade the chlorotoluene isomers faster and more effectively. Their surface characteristics changed as well.
Źródło:
Ochrona Środowiska; 2018, 40, 2; 23-29
1230-6169
Pojawia się w:
Ochrona Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Kinetic and thermodynamic characterization of the interactions between the components of human plasma kinin-forming system and isolated and purified cell wall proteins of Candida albicans
Autorzy:
Seweryn, Karolina
Karkowska-Kuleta, Justyna
Wolak, Natalia
Bochenska, Oliwia
Kedracka-Krok, Sylwia
Kozik, Andrzej
Rapala-Kozik, Maria
Powiązania:
https://bibliotekanauki.pl/articles/1038926.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
Candida albicans cell wall
candidiasis
contact system
surface plasmon resonance
Opis:
Cell wall proteins of Candida albicans, besides their best known role in the adhesion of this fungal pathogen to host's tissues, also bind some soluble proteins, present in body fluids and involved in maintaining the biochemical homeostasis of the human organism. In particular, three plasma factors - high-molecular-mass kininogen (HK), factor XII (FXII) and prekallikrein (PPK) - have been shown to adhere to candidal cells. These proteins are involved in the surface-contact-catalyzed production of bradykinin-related peptides (kinins) that contribute to inflammatory states associated with microbial infections. We recently identified several proteins, associated with the candidal cell walls, and probably involved in the binding of HK. In our present study, a list of potential FXII- and PPK-binding proteins was proposed, using an affinity selection (on agarose-coupled FXII or PPK) from a whole mixture of β-1,3-glucanase-extrated cell wall-associated proteins and the mass-spectrometry protein identification. Five of these fungal proteins, including agglutinin-like sequence protein 3 (Als3), triosephosphate isomerase 1 (Tpi1), enolase 1 (Eno1), phosphoglycerate mutase 1 (Gpm1) and glucose-6-phosphate isomerase 1 (Gpi1), were purified and characterized in terms of affinities to the human contact factors, using the surface plasmon resonance measurements. Except Gpm1 that bound only PPK, and Als3 that exhibited an affinity to HK and FXII, the other isolated proteins interacted with all three contact factors. The determined dissociation constants for the identified protein complexes were of 10-7 M order, and the association rate constants were in a range of 104-105 M-1s-1. The identified fungal pathogen-host protein interactions are potential targets for novel anticandidal therapeutic approaches.
Źródło:
Acta Biochimica Polonica; 2015, 62, 4; 825-835
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Haunted Bodies: Cell Switching, Getting Lost and Adaptive Geographies
Autorzy:
Grant, Jane
Whalley, Joanne “Bob”
Powiązania:
https://bibliotekanauki.pl/articles/632564.pdf
Data publikacji:
2017
Wydawca:
Projekt Avant
Tematy:
: boundary
cell switching
hauntings
heteropathic exchange
sonic memory
surface
symbiogenesis
transfection
Opis:
This article proposes the ideas of stochastic resonance and noise as devices with which to think of the body or self as plural and porous. Boundaries and surfaces are proposed as indefinite; cell switching and narratives of the self are discussed in relation to external forces, via Arendt’s inter-subjectivity and La Celca’s colonization as infection. The sonic artwork Ghost, which uses models of spiking neurons to materialize endogenous and exogenous composition in relation to noise and sonic memory is presented as an exploration of the boundary or limit of the notion of self. This paper, which serves as a cogitatum (a force) rather than cognitio (the result), articulates the human body as a complex and open system that steers towards chaos by adapting and accepting further complexity as, and within, constantly adaptive networks of creativity. We suggest that by focusing on the porosity of boundaries and the mechanisms that underlie their permeability, problems around identity and subjectivity might be seen in a new light.
Źródło:
Avant; 2017, 8
2082-6710
Pojawia się w:
Avant
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cell-like resolutions of polyhedra by special ones
Autorzy:
Repovš, Dušan
Skopenkov, Arkady
Powiązania:
https://bibliotekanauki.pl/articles/965832.pdf
Data publikacji:
2000
Wydawca:
Polska Akademia Nauk. Instytut Matematyczny PAN
Tematy:
banana and pineapple trick
cell-like resolution
Whitehead conjecture
special polyhedron
fake surface
Opis:
Suppose that P is a finite 2-polyhedron. We prove that there exists a PL surjective map f:Q → P from a fake surface Q with preimages of f either points or arcs or 2-disks. This yields a reduction of the Whitehead asphericity conjecture (which asserts that every subpolyhedron of an aspherical 2-polyhedron is also aspherical) to the case of fake surfaces. Moreover, if the set of points of P having a neighbourhood homeomorphic to the 2-disk is a disjoint union of open 2-disks, and every point of P has an arbitrarily small 2-dimensional neighbourhood, then we may additionally conclude that Q is a special 2-polyhedron.
Źródło:
Colloquium Mathematicum; 2000, 86, 2; 231-237
0010-1354
Pojawia się w:
Colloquium Mathematicum
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Surface properties of neutral components in copper column bioleaching of black shale samples
Autorzy:
Sadowski, Z.
Baranska, J.
Pawlowska, A.
Powiązania:
https://bibliotekanauki.pl/articles/110261.pdf
Data publikacji:
2018
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
adhesion
surface energy
glass beads
biohydrometallurgy
column bioleaching
bacteria cell
polyethylene pellets
Opis:
The behaviour of glass beads and polyethylene pellets as the extra bacteria support in the fine black shale ore in the column bed bioreactor was compared. Capillary rise experiments enabled the calculation of the contact angle and the surface free energy of glass beads and polyethylene pellets. The results showed that the support material made up of polyethylene pellets yielded a higher copper extraction, which could be explained by conditions favourable to cell adhesion on the polyethylene surface.
Źródło:
Physicochemical Problems of Mineral Processing; 2018, 54, 4; 1146-1151
1643-1049
2084-4735
Pojawia się w:
Physicochemical Problems of Mineral Processing
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of nanocrystalline structure and surface properties of TiO2 thin films on the viability of L929 cells
Autorzy:
Osękowska, M.
Karuga-Kuźniewska, E.
Wojcieszak, D.
Mazur, M.
Poniedziałek, A.
Kaczmarek, D.
Szymonowicz, M.
Rybak, Z.
Powiązania:
https://bibliotekanauki.pl/articles/778951.pdf
Data publikacji:
2015
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
TiO2
surface properties
nanocrystalline thin film
cell morphology
viability of L929 cells
Opis:
In this work the physicochemical and biological properties of nanocrystalline TiO2 thin films were investigated. Thin films were prepared by magnetron sputtering method. Their properties were examined by X-ray diffraction, photoelectron spectroscopy, atomic force microscopy, optical transmission method and optical profiler. Moreover, surface wettability and scratch resistance were determined. It was found that as-deposited coatings were nanocrystalline and had TiO2-anatase structure, built from crystallites in size of 24 nm. The surface of the films was homogenous, composed of closely packed grains and hydrophilic. Due to nanocrystalline structure thin films exhibited good scratch resistance. The results were correlated to the biological activity (in vitro) of thin films. Morphological changes of mouse fibroblasts (L929 cell line) after contact with the surface of TiO2 films were evaluated with the use of a contrast-phase microscope, while their viability was tested by MTT colorimetric assay. The viability of cell line upon contact with the surface of nanocrystalline TiO2 film was comparable to the control sample. L929 cells had homogenous cytoplasm and were forming a confluent monofilm, while lysis and inhibition of cell growth was not observed. Moreover, the viability in contact with surface of examined films was high. This confirms non-cytotoxic effect of TiO2 film surface on mouse fibroblasts.
Źródło:
Polish Journal of Chemical Technology; 2015, 17, 3; 33-39
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of Glass-Coated Al Paste on Back-Surface Field Formation in Si Solar Cells
Autorzy:
Jeong, Hyeondeok
Ryu, Sung-Soo
Powiązania:
https://bibliotekanauki.pl/articles/354208.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Si solar cell
Al paste
glass coating
Al back contact
back surface field
Opis:
In this study, glass frit was coated uniformly on the surface of Al particles instead of adding glass frit to Al powder by simple mixing to form a nano-layer. The influence of the glass-frit coating on the formation of the back-surface field and electrical characteristics of the resulting Al electrode were investigated. Microstructural observations indicated that the glass components were uniformly distributed and the back-surface field layer thickness was more uniform compared to the simply mixed sample. Inaddition, the sheet resistance was ˂10 mΩ/□, much lower than the 23 mΩ/□ of the simply mixed Al electrode.
Źródło:
Archives of Metallurgy and Materials; 2020, 65, 3; 989-992
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dye-sensitized solar cells based on sno2 nanorod and surface treatment with MG(II) film
Autorzy:
Bai, J.
Murakami, K.
Powiązania:
https://bibliotekanauki.pl/articles/384287.pdf
Data publikacji:
2009
Wydawca:
Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:
dye-sensitized solar cell
tin dioxide film
nanorod
spray pyrolysis deposition
surface treatment
magnesium oxide
Opis:
Homocentrically grown SnO2 nanorods were synthesized by a hydrothermal method, whose diameter and length are around 20 nm and 100-200 nm, respectively. The photovoltaic properties of dye-sensitized SnO and MgO-treated SnO2 films were investigated. A light-to-electricity conversion yield of 0.8% was achieved by applying the nanorods as a thin film layer for the dye-sensitized solar cells. Treatment with MgO on SnO2 surface improves the photovoltage, fill factor and cell efficiency owing to preventing a recombination of the electrons injected into SnO with acceptors in the electrolyte.
Źródło:
Journal of Automation Mobile Robotics and Intelligent Systems; 2009, 3, 4; 69-71
1897-8649
2080-2145
Pojawia się w:
Journal of Automation Mobile Robotics and Intelligent Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wykorzystanie ogniwa paliwowego z membraną polimerową do zasilania pojazdu nawodnego
Using fuel cell with polymer membrane to power supply of surface vehicle
Autorzy:
Szymak, P.
Januszko, R.
Powiązania:
https://bibliotekanauki.pl/articles/946331.pdf
Data publikacji:
2018
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Inżynierii Materiałów Polimerowych i Barwników
Tematy:
bezzałogowy pojazd nawodny
ogniwo paliwowe PEM
membrana polimerowa
unmanned surface vehicle
PEM fuel cell
polymer membrane
Opis:
Niestabilne ceny ropy naftowej, czy też aspekty ekologiczne związane z redukcją emisji dwutlenku węgla do atmosfery przyczyniły się do poszukiwań nowych źródeł energii. Jedną z technologii nowych źródeł energii elektrycznej, gwałtownie rozwijających się w ostatnim czasie są ogniwa paliwowe, m.in. z membraną polimerową, charakteryzujące się wysoką gęstością energetyczną oraz sprawnością w porównaniu do klasycznych źródeł energii elektrycznej, czyli akumulatorów. Z uwagi na ekologiczną, efektywną i cichą pracę technologia ta znajduje zastosowanie w wielu różnych urządzeniach. W niniejszym artykule zajęto się problemem zastosowania technologii ogniw paliwowych z membraną polimerową PEMFC (ang. Polymer Electrolyte Membrane Fuel Cell) do zasilania elektrycznego bezzałogowego pojazdu nawodnego BPN w zastosowaniach militarnych. W ramach zrealizowanej pracy opracowano scenariusze misji rozpoznawczej dla BPN, opracowano symulator systemu zasilania BPN, bazujący na ogniwach paliwowych oraz przeprowadzono testy numeryczne.
Unstable oil prices, or ecological aspects associated with the reduction of carbon dioxide emissions to the atmosphere, have contributed to the search for new sources of energy. One of the technologies of new sources of electricity, rapidly developing in recent years are fuel cells, among others with a polymer membrane, characterized by high energy density and efficiency compared to conventional sources of electricity, i.e. batteries. Due to its ecological, efficient and quiet operation, this technology is used in many different devices. This article deals with the use of the Polymer Electrolyte Membrane Fuel Cell (PEMFC) fuel cell technology for the electrical supply of unmanned surface vehicle USV in military applications. As part of the work carried out, scenarios of reconnaissance missions were developed for USV, USV fuel cell simulator was developed, and numerical tests were performed.
Źródło:
Przetwórstwo Tworzyw; 2018, T. 24, Nr 2 (182), 2 (182); 47-55
1429-0472
Pojawia się w:
Przetwórstwo Tworzyw
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 22

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