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Eu/SiO2 Nanoparticles was prepared through sol-gel method. The gel was synthesized through the hydrolysis of a complex solution of containing tetramethoxy-silicane (TMOS) and EuCl3·6H2O. X ray diffraction analysis showed that that there are crystalline materials appeared in the amorphous SiO2. The fluorescence spectroscopic analysis showed that the Eu/SiO2 fluorescence peaked at 590 nm with excitation...
A case-control study was performed on 83 cases of primary pulmonary squamous cell carcinoma and 180 cases of primary pulmonary adenocarcinoma in Nanjing. Multivariate conditional logistic regression analysis showed five risk factors for pulmonary squamous carcinoma. These were: smoking, indoor air pollution due to cooking fumes, family tumor history, type of fuel used in the home, and use of coal...
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