Autor: Lackner, F. - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: Bioinspired thin film materials designed for blood contact
Autorzy:: Marczak, J.
Lackner, J.M.
Bruckert, F.
Major, B.
Sanak, Marek
Major, R.
Wydawca:: Woodhead Publishing
Dostawca treści:: Repozytorium Uniwersytetu Jagiellońskiego

Artykuł

na półce

Skocz do pozycji: 2.

Tytuł:: Mechanisms for self-assembling topography formation in low-temperature vacuum deposition of inorganic coatings on polymer surfaces
Autorzy:: Lackner, J.
Waldhauser, W.
Alamanou, A.
Teichert, C.
Schmied, F.
Major, L.
Major, B.
Tematy:: topography
roughness
coatings
pulsed laser deposition
magnetron sputtering
polymers; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/200047.pdf Link otwiera się w nowym oknie
Opis:: Functionalization of surfaces is an important task for nanotechnology to add specially designed physico-chemical properties to materials. Besides chemical modification of surfaces, physical adaptations gain increasing interest. Thus, understanding the influences of film deposition on surface topography formation is the basis for future developments. For physical or chemical vapour deposited (PVD, CVD) films, structure zone models were developed, clearly showing the influences of temperature and vapour energy and, thus, surface and bulk diffusion on film structures based on four different structure zones. Generally, similar zones are also found in PVD coatings on polymeric substrates; However, due to restrictions in coating temperatures due to the thermal resistance of most polymers, the coating temperature is restricted to mostly 50°C, excluding thermal activation of at least surface diffusion of inorganic materials (metals and their nitrides, oxides, carbides, etc.) and resulting in columnar growth with dome-shaped column tops. Additionally, the high difference in mechanical properties between “stiff” inorganic coatings and “flexible” polymers implicates stress-induced growth phenomena, resulting in wrinkling, cracking and finally the formation of a superseding structure, depending on substrate and film materials and the vapour energy of the deposition method.
Dostawca treści:: Biblioteka Nauki

Artykuł

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Skocz do pozycji: 3.

Tytuł:: Biomechanical properties of the thin PVD coatings defined by red blood cells
Autorzy:: Trembecka-Wojciga, K.
Major, R.
Lackner, J. M.
Bruckert, F.
Jasek, E.
Major, B.
Tematy:: biomechanical properties
thin PVD coatings
red blood cells
właściwości biomechaniczne
cienkie powłoki PVD
krwinki czerwone; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/201364.pdf Link otwiera się w nowym oknie
Opis:: The measurement of the strength of bonds between biomaterials and cells is a major challenge in biotribology since it allows for the identification of different species in adhesion phenomena. Biomaterials, such as diamond-like carbon (DLC), titanium, and titanium nitride, seem to be good candidates for future blood-contact applications. These materials were deposited as thin films by the hybrid pulsed laser deposition (PLD) technique to examine the influence of such surfaces on cell behavior. The biomaterial examinations were performed in static conditions with red blood cells and then subjected to a dynamical test to observe the cell detachment kinetics. The tests revealed differences in behavior with respect to the applied coating material. The strongest cell-biomaterial interaction was observed for the carbon-based materials compared to the titanium and titanium nitride. Among many tests, a radial flow interaction analysis gives the opportunity to analyze cell adhesion to the applied material with the high accuracy. Analysis of concentrates helped to select materials for further dynamic tests on blood using an aortic flow simulator. In this case, the platelet adhesion to the surface and their degree of activation was analyzed. The quality of the selected coating was tested using a scratch test. The analyses of the microstructure were done using high resolution transmission electron microscopy. The phase composition and the residual stress were analyzed using X-ray diffraction methods.
Dostawca treści:: Biblioteka Nauki

Artykuł

na półce

Skocz do pozycji: 4.

Tytuł:: Biomechanical properties of the thin PVD coatings defined by red blood cells
Autorzy:: Bruckert, F.
Lackner, J.M.
Jasek-Gajda, Ewa
Major, B.
Major, R.
Trembecka-Wojciga, K.
Opis:: The measurement of the strength of bonds between biomaterials and cells is a major challenge in biotribology since it allows for the identification of different species in adhesion phenomena. Biomaterials, such as diamond-like carbon (DLC), titanium, and titanium nitride, seem to be good candidates for future blood-contact applications. These materials were deposited as thin films by the hybrid pulsed laser deposition (PLD) technique to examine the influence of such surfaces on cell behavior. The biomaterial examinations were performed in static conditions with red blood cells and then subjected to a dynamical test to observe the cell detachment kinetics. The tests revealed differences in behavior with respect to the applied coating material. The strongest cell-biomaterial interaction was observed for the carbonbased materials compared to the titanium and titanium nitride. Among many tests, a radial flow interaction analysis gives the opportunity to analyze cell adhesion to the applied material with the high accuracy. Analysis of concentrates helped to select materials for further dynamic tests on blood using an aortic flow simulator. In this case, the platelet adhesion to the surface and their degree of activation was analyzed. The quality of the selected coating was tested using a scratch test. The analyses of the microstructure were done using high resolution transmission electron microscopy. The phase composition and the residual stress were analyzed using X-ray diffraction methods.
Dostawca treści:: Repozytorium Uniwersytetu Jagiellońskiego