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    Wyświetlanie 1-4 z 4
    Tytuł:
    Engineering the optical and mechanical properties exhibited by a titanium dioxide thin film with gold nanoparticles
    Autorzy:
    Morales-Bonilla, S
    Torres-Torres, C
    Trejo-Valdez, M
    Torres-Torres, D
    Urriolagoitia-Sosa, G
    Hernandez-Gomez, L H
    Urriolagoitia-Calderon, G
    Powiązania:
    https://bibliotekanauki.pl/articles/174855.pdf
    Data publikacji:
    2013
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    optical Kerr effect
    nonlinear optics
    nanomaterials
    Opis:
    Thermo-optic and electrostrictive contributions to the nonlinear refractive index were observed in a titanium dioxide thin film with embedded gold nanoparticles. A sol–gel method was employed for preparing thin solid film samples. The nanosecond nonlinear optical properties and the Young’s modulus parameter were changed by shifting the optical absorption band associated with the localized surface plasmon of resonance of the gold nanoparticles with platinum. The third order nonlinear optical phenomena exhibited by the sample were induced by the second harmonic of a Nd-YAG laser with 532 nm wavelength; the nonlinear optical measurements were obtained by monitoring the transmittance and the amplitude modification for the vectorial components of the electric fields in a two-wave interaction. Optical evaluations were confirmed considering a straightforward measurement of the change in the refractive index of the sample when the sample was located in a Michelson interferometer.
    Źródło:
    Optica Applicata; 2013, 43, 4; 651-661
    0078-5466
    1899-7015
    Pojawia się w:
    Optica Applicata
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Numerical modelling of the transient heat transport in a thin gold film using the fuzzy lattice Boltzmann method with α-cuts
    Autorzy:
    Belkhayat-Piasecka, A.
    Korczak, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/122914.pdf
    Data publikacji:
    2016
    Wydawca:
    Politechnika Częstochowska. Wydawnictwo Politechniki Częstochowskiej
    Tematy:
    fuzzy lattice Boltzmann method
    α-cuts
    directed interval arithmetic
    analiza przedziałowa
    transport ciepła
    metoda siatkowa Boltzmanna
    Opis:
    In this paper a description of heat transfer in one-dimensional crystalline solids is presented. The fuzzy lattice Boltzmann method based on the Boltzmann transport equation is used to simulate the nanoscale heat transport in thin metal films. The fuzzy coupled lattice Boltzmann equations for electrons and phonons are applied to analyze the heating process of thin metal films via a laser pulse. Such an approach in which the parameters appearing in the problem analyzed are treated as constant values is widely used. Here, the model with fuzzy values of relaxation times and an electron-phonon coupling factor is taken into account. The problem formulated has been solved by means of the fuzzy lattice Boltzmann method using the α-cuts and the rules of directed interval arithmetic. The application of α-cuts allows one to avoid complicated arithmetical perations in the fuzzy numbers set. In the final part of the paper the results of numerical computations are shown.
    Źródło:
    Journal of Applied Mathematics and Computational Mechanics; 2016, 15, 1; 123-135
    2299-9965
    Pojawia się w:
    Journal of Applied Mathematics and Computational Mechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The adhesion and growth of vascular smooth muscle cells in cultures on carboranethiol-modified gold films
    Autorzy:
    Parizek, M.
    Base, T.
    Londesborough, M. G. S.
    Lisa, V.
    Bacakova, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/285409.pdf
    Data publikacji:
    2008
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
    Tematy:
    metal coating
    gold film
    carboranethiol
    cell adhesion
    cell spreading
    cell proliferation
    biomaterials
    tissue engineering
    surgical implants
    Opis:
    Metal surfaces have become important over the last decade for potential surgical implants, and within this context we present here a study of the cell growth on modified gold surfaces. Gold films, deposited on glass plates and annealed with a hydrogen flame, were modified with four different carboranethiol derivatives: 1-(HS)-1,2-C2B10H11 (A), 1,2-(HS)2-1,2-C2B10H10 (B), 9,12-(HS)2-1,2-C2B10H10 (C) and 1,12-(HS)2-1,12- C2B10H10 (D). The materials engendered from these modifications were used to investigate the adhesion and growth of rat aortic smooth muscle cells cultured on these surfaces in a DMEM medium with 10% of fetal bovine serum. One day after seeding, the highest number of initially adhered cells was found on the surface of a bare gold film. However, three days after seeding, the number of cells on carboranethiol-modified gold samples B, C and D was significantly higher than the number on a bare gold film. After seven days, the number of cells on a bare gold film and on gold films modified with derivatives A, B and D was very similar, but the surface of a gold film modified with derivative C exhibited a significantly smaller number of cells. This may be explained by the exposure of the CH vertices of the carborane cluster, which are more acidic than the BH vertices exposed toward the cells in either A or B.
    Źródło:
    Engineering of Biomaterials; 2008, 11, no. 81-84; 117-119
    1429-7248
    Pojawia się w:
    Engineering of Biomaterials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The adhesion and growth of vascular smooth muscle cells in cultures on carboranethiol-modified gold films
    Autorzy:
    Parizek, M.
    Base, T.
    Londesborough, M. G. S.
    Lisa, V.
    Bacakova, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/286249.pdf
    Data publikacji:
    2008
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
    Tematy:
    implanty chirurgiczne
    biomateriały
    powłoki metalowe
    inżynieria materiałowa
    metal coatings
    gold film
    carboranethiol
    cell adhesion
    cell spreading
    cell proliferation
    biomaterials
    tissue engineering
    surgical implants
    Opis:
    Metal surfaces have become important over the last decade for potential surgical implants, and within this context we present here a study of the cell growth on modified gold surfaces. Gold films, deposited on glass plates and annealed with a hydrogen flame, were modified with four different carboranethiol derivatives: 1-(HS)-1,2-C2 B10H11(A), 1,2-(HS)2-1,2-C2B10H10(B), 9,12-(HS)2-1,2-C2B10H10(C) and 1,12-(HS)2-1,12- C2B10H10(D). The materials engendered from these modifications were used to investigate the adhesion and growth of rat aortic smooth muscle cells cultured on these surfaces in a DMEM medium with 10% of fetal bovine serum. One day after seeding, the highest number of initially adhered cells was found on the surface of a bare gold film. However, three days after seeding, the number of cells on carboranethiol-modified gold samples B, C and D was significantly higher than the number on a bare gold film. After seven days, the number of cells on a bare gold film and on gold films modified with derivatives A, B and D was very similar, but the surface of a gold film modified with derivative C exhibited a significantly smaller number of cells. This may be explained by the exposure of the CH vertices of the carborane cluster, which are more acidic than the BH vertices exposed toward the cells in either A or B.
    Źródło:
    Engineering of Biomaterials; 2008, 11, 75; 6-8
    1429-7248
    Pojawia się w:
    Engineering of Biomaterials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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