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Wyszukujesz frazę "Piccinini, M." wg kryterium: Autor


Wyświetlanie 1-2 z 2
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:
Application of μ-FTIR-SR Spectroscopy to Prostate Tissue Analysis
Autorzy:
Kwiatek, W.
Paluszkiewicz, C.
Banaś, A.
Kisiel, A.
Podgórczyk, M.
Marcelli, A.
Cestelli Guidi, M.
Piccinini, M.
Powiązania:
https://bibliotekanauki.pl/articles/1810277.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:
The infrared spectromicroscopy is a quite recent technique rapidly developing thanks to the availability of new instruments and new brilliant synchrotron radiation sources in different areas and in particular to biomedical researches. In order to achieve a diffraction limited spatial resolution in tissue samples, we performed experiments at SINBAD, the synchrotron infrared beamline of the Laboratori Nazionali di Frascati. We characterized the chemical composition of prostate tissue samples taken from patients affected by prostate cancer disease. Different sizes of the pinholes were considered for the measurements. In the case of prostate tissue sections the results show the possibility to determine the intensity ratio of the $CH_2$ and $CH_3$ bands set at 2930 $cm^{-1}$ and 2960 $cm^{-1}$, respectively. Experiments were also performed with a pinhole of 5 μm of diameter and the differences in both histological and chemical compositions of such samples were determined.
Źródło:
Acta Physica Polonica A; 2009, 115, 2; 602-605
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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