[en] Highly ordered Prussian blue nanowires with diameter of about 50 nm and length up to 4 μm have been fabricated by an electrodepositing technology with two-step anodizing anodic aluminum oxide films. The Moessbauer spectra taken between 15 and 300 K indicate that the hyperfine parameters decrease as the temperature increases. The temperature dependence of the quadrupole splitting, the isomer shift and the spectra area are discussed. A decrease of Debye temperature for Prussian blue nanowires was found with respect to that of Prussian blue bulk.

[en] Objective: Study on the change of serum soluble Fas (sFas) level and prognostic relation for non-small cell lung cancer (NSCLC) patients with concurrent radio-chemotherapy using enzyme linked immunosorbent assays(ELISA). Methods: Sixty patients were obtained. The sFas level were compared before treatment with one month after treatment, and healthy donors were used as controls level of sFas. The sFas level of before treatment were compared treatment efficiency patients (complete remission and partial remission, 50 patients) and treatment inefficiency patients (no change and progressive disease, 10 patients). The correlation was analyzed between 2-year survival NSCLC patients and their sFas level. Results: The sFas level before treatment in NSCLC patients was obviously higher than healthy controls (8.55 ± 0.63) ng/L and (6.03 ± 0.55) ng/L; (t=18.63, P<0.01), with 1 month after treatment obviously lower than before treatment in NSCLC patients (7.24 ± 0.52) ng/L and (8.55 ± 0.63) ng/L; (t=12.44, P<0.01). The sFas level of before treatment was treatment efficiency patients obviously lower than treatment ineffectived patients (8.02 ± 0.43) ng/ L and (8.97 ± 0.42) ng/L; (t=8.67, P<0.01), with 2-year survival patients obviously(26 patients)lower than shortage 2-year survival patients (34 patients) (t=645.88, P<0.05). Conclusions: Concurrent radio- chemotherapy can reduce sFas level in NSCLC patients, the changes of sFas level before and after treatment may provide worth prognostic for NSCLC patients. (authors)

[en] For the first time, an organic dye, morin, and another bio-macromolecule, human serum albumen (HSA), were embedded in porous alumina (P-Al) fabricated by anodization in oxalic acid. The photoluminescent (PL) spectra of morin and morin-HSA immersed in the P-Al pores were measured and compared with those of liquid solutions. It was found that their PL positions are similar to those of dye-Al³⁺ in ethanol solution, and the PL of the embedded morin was greatly enhanced by the introduction of HSA. We have ascribed the appearance of PL bands to the formation of morin-Al complexes in the nanopores, with its inner wall being involved. A likely luminescence model was proposed to explain the observed PL enhancement due to the coexistence of morin and HSA in the nanopores, which has been proved by UV and Fourier transform infrared measurements. Moreover, the PL intensity increased with increasing pore diameter, which may be used to develop a luminescent array to predict the pore size of a P-Al layer