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  • 1
    Electronic Resource
    Electronic Resource
    Simulations of C28 chemisorption on diamond (001)-(2×1) surface: The comparison between cluster–cluster interaction and cluster–surface interaction (2000)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 88 (2000), S. 6836-6841 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: In this article, the dynamic behavior of C28 chemisorption on diamond (001)-(2×1) surface was investigated by molecular dynamics simulation. The many-body Brenner potential was employed to describe the interaction between carbon atoms. With the incident energy ranging from 25 to 40 eV, the single C28 was found to have more than 50% of the probability to be chemisorbed on a diamond surface and to form two C–C bonds with one dimer of the surface. Then the chemisorption of two C28 clusters was simulated at the above energy range. The cluster–cluster interaction was found to hinder the next incident cluster to be chemisorbed. Besides, the juxtaposition configuration of two C28 on the surface was observed when their impact points were along the same dimer row. For multicluster impacting, when two or three clusters formed a nucleation site, the forthcoming cluster was easily to be adsorbed close to it. The growth of the C28 cluster assembled film is typically a three dimensional island mode. Our study also showed that within the energy range the C28 clusters retained their cage structure after chemisorption. This is in agreement with experimental results. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1320006
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  • 2
    Electronic Resource
    Electronic Resource
    Energy dependence of C60–graphite surface collisions (1998)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 83 (1998), S. 4963-4967 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The resilience of C60 fullerene with graphite (0001) surfaces has been investigated by means of molecular dynamics simulations with empirical model potentials. The initial energy of C60 ranges from 30 to 300 eV. It is shown that when the impact energy is above 60 eV, the rebounding energy of C60 is nearly independent of the impact energy. The scattering is highly inelastic and the internal excitation energy of the scattered molecule increases with the incident energy. These results are consistent with experiment. Furthermore, the simulations provide insight into the microscopic aspects of the scattering. The rebounding processes at different energies are found to exhibit similar dynamic behavior and the molecular center-of-mass motion can be regarded as moving in a quadratic harmonic potential. All of these results support a schematic picture to describe nonreactive C60-surface collisions. © 1998 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.367298
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  • 3
    Electronic Resource
    Electronic Resource
    Targeted diagnosis of bladder and ureteral carcinoma using radiolabelled BDI-1 (1998)
    Springer
    Urological research 26 (1998), S. 343-348 
    Details
    ISSN: 1434-0879
    Keywords: Key words Radioimmunoimaging ; Monoclonal antibody ; Bladder cancer ; Technetium-99 m ; Iodine-131
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The aim of this study is to investigate the possibility of radioimmunoimaging (RII) by radiolabelled anti-bladder carcinoma monoclonal antibody BDI-1 applied to diagnosis of bladder cancer and ureteral cancer. BDI-1 was labelled with 131I and 99mTc. The immunoreactivity, pharmacokinetics and biodistribution in mice were studied. RII was performed in 46 patients.The results showed that 131I, 99mTc-BDI-1 have satisfactory immunoreactivity and excellent tumor-locating properties. The blood clearance half-life T1/2 and T1/2 were 35 h in the first phase and 151 h in the second phase, respectively. Thirty-nine patients were studied by an intravesical administration method; the sensitivity was 90.5%. Seven patients were studied by an intravenous administration method. The RII results of three cases with primary or recurrent bladder cancer and three cases with ureteral cancer were confirmed histologically. RII was negative in one patient with suspected lung metastasis that was shown on radiography. The investigation revealed that RII can be used as an auxiliary method for the detection of bladder cancer and may be valuable for the diagnosis of ureteral cancer.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002400050067
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