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Wyszukujesz frazę "Wesełucha-Birczyńska, A." wg kryterium: Autor


Wyświetlanie 1-3 z 3
Tytuł:
Surface Study of Selected Biomaterials Using Vibrational Spectroscopy
Autorzy:
Paluszkiewicz, C.
Kwiatek, W.
Długoń, E.
Wesełucha-Birczyńska, A.
Piccinini, M.
Powiązania:
https://bibliotekanauki.pl/articles/1809387.pdf
Data publikacji:
2009-02
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
87.64.km
87.64.kp
87.64.Ee
87.85.jf
Opis:
Vibrational spectroscopy has been extensively used for in vitro and in vivo investigations of degradation mechanism and kinetics of different biomedical materials as well as it has been used to characterize the crystalline and amorphous domains in bio-mineralization process. Infrared and Raman spectroscopy methods are valuable tools in the biomaterials engineering allowing to study processes occurring during their preparation. In vitro tests, where the materials are immersed in simulated body fluids and/or artificial saliva, were used to evaluate the biocompatibility of biomaterials. This kind of tests are a wide range of repeatable and reproducible methods, which are regulated by international standards for commercial use and scientific development of new materials and products. The aim of this work was to examine phase composition of materials applied in dentistry. The bioactivity of such biomaterials was studied by immersing the samples in synthetic body fluid and artificial saliva. The changes were determined by the Fourier transform infrared and Raman microspectroscopy as well as scanning electron microscopy. It was found that results obtained by vibrational spectroscopy show the differences between the studied samples. Chemical reactions occurring during incubation of cements in artificial saliva as well as in synthetic body fluid result in formation of phosphates which deposit on the cement surface.
Źródło:
Acta Physica Polonica A; 2009, 115, 2; 533-536
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Physiochemical and biological evaluation of thin CNTs layers
Autorzy:
Benko, A.
Przekora, A.
Nocuń, M.
Wesełucha-Birczyńska, A.
Ginalska, G.
Błażewicz, M.
Powiązania:
https://bibliotekanauki.pl/articles/286004.pdf
Data publikacji:
2014
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Tematy:
EPD
MWCNTs
thin layers
biocompatibility
Opis:
Carbon nanotubes are nanometric-sized materiale which possess a set of interesting features that favor their applications in various fields of materials engineering, including biomedical applications. However, their usage as implants or in nanomedicine raises many questions, regarding their potential cytotoxicity, relative to their length, diameter, structure and functional groups, present on their outer walls. The given study presents a physiochemical and biological in vitro (in accordance with EN-ISO 10993-5) evaluation of thin carbon nanotubes films, deposited on the surface of titanium, by means of the EPD process. Experiments were carried out on commercially available, pre-functionalized with OH groups, multi-walled carbon nanotubes. The obtained material is proven to be biocompatible, with no cytotoxic effect on the human fetal osteoblast cell line. During the study, selectivity of the EPD process was proven - performed experiments revealed that the process favors deposition of CNTs with chosen set of features from the stock solution. Presented results point out that the EPD process can be successfully applied as a method for fractioning the CNTs, aimed to fabricate non-toxic layers that might be considered for various biomedical applications.
Źródło:
Engineering of Biomaterials; 2014, 17, no. 128-129; 93-94
1429-7248
Pojawia się w:
Engineering of Biomaterials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
2D-Raman correlation spectroscopy as a method to recognize of the interaction at the interface of carbon layer and albumin
Autorzy:
Kołodziej, A.
Wesełucha-Birczyńska, Aleksandra
Moskal, Paulina
Stodolak-Zych, Ewa
Dużyja, Maria
Długoń, Elżbieta
Sacharz, Julia
Błażewicz, Marta
Powiązania:
https://bibliotekanauki.pl/articles/950923.pdf
Data publikacji:
2019
Wydawca:
Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:
multi-walled carbon nanotubes
pyrolytic carbon
carbon layers
raman microspectroscopy
plasma blood proteins
2D correlation
Opis:
In modern nanomaterial production, including those for medical purposes, carbon based materials are important, due to their inert nature and interesting properties. The essential attribute for biomaterials is their biocompatibility, which indicates way of interactions with host cells and body fluids. The aim of our work was to analyze two types of model carbon layers differing primarily in topography, and developing their interactions with blood plasma proteins. The first layer was formed of pyrolytic carbon C (CVD) and the second was constructed of multi-walled carbon nanotubes obtained by electrophoretic deposition (EPD), both set on a Ti support. The performed complex studies of carbon layers demonstrate significant dissimilarities regarding their interaction with chosen blood proteins, and points to the differences related to the origin of a protein: whether it is animal or human. However the basic examinations, such as: wettability test and nano sctatch tests were not sufficient to explain the material properties. In contrast, Raman microspectroscopy thoroughly decodes the phenomena occurring at the carbon structures in contact with the selected blood proteins. The 2D correlation method selects the most intense interaction and points out the different mechanism of interactions of proteins with the nanocarbon surfaces and differentiation due to the nature of the protein and its source: animal or human. The 2D correlation of the Raman spectra of the MWCNT layer+HSA interphase proves an increase in albumin β-conformation. The presented results explain the unique properties of the Clayers (CVD) in contact with human albumin.
Źródło:
Journal of Automation Mobile Robotics and Intelligent Systems; 2019, 13, 3; 74-83
1897-8649
2080-2145
Pojawia się w:
Journal of Automation Mobile Robotics and Intelligent Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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