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Abstract: We report about multilayer TiO2/WO3 thin films deposited on silicon and quartz glass substrate by pulsed laser deposition (PLD) method. The multilayer film has higher photocatalytic activity than TiO2 film under visible light irradiation. The films were characterized using an atomic force microscope (AFM), X-ray diffraction method (XRD) and UV–VIS absorption spectrometry. Photocatalytic efficiency of TiO2 and TiO2/WO3 multilayer thin film was also evaluated by photodecomposition of methylene blue (MB) in aqueous solution. The portion of WO3 layers in the multilayer film is very sensitive to photocatalytic property. The multilayer film containing 5% WO3 layers in thickness showed the highest dye decomposition ratio. [Copyright &y& Elsevier]

A 52-year-old woman underwent Auchinclass' operation for breast cancer. The histological type was papillotubular carcinoma. One year and 5 months after operation, multiple liver tumors were found on the CT scan and multiple bone metastasis on MRI. The former were treated by hepatic artery infusion chemotherapy with epirubicin and 5-FU using a subcutaneous implanted pump and the latter by 50 Gy irradiation. The patient began to complain of abdominal pain and discomfort after hepatic artery infusion, so all treatment was discontinued. Six months later the patient died of respiratory failure due to pleural dissemination. No liver mass was detected, and bone metastasis was not changed in section tissues. This suggested that the therapy for a breast cancer patient with distant metastasis must be considered according to the region of recurrence.