Stereotactic body radiation therapy (SBRT) in the treatment of spine metastases at the linear accelerator in Sverdlovsk Regional Oncology Center

Modern technology of radiation therapy (IMRT, SBRT, etc) are used for patients receiving radical treatment program with an expected high oncological result. However, for patients with single metastases to the spine can be applied the strategy of conditionally radical treatment, including the achievement of full local control of metastatic lesion followed adequately chosen a specific treatment. In the last case, the survival rate can reach several years. In S00D we use the technique of stereotactic body radiotherapy with 2012 for patients with metastases in the vertebrae. Currently treated 32 people, the effectiveness of treatment was 90,6% in terms of relief of pain. The method is effective and relatively safe method of treatment allows to reduce treatment time.Современные технологии лучевой терапии (IMRT, SBRT и др) используются для пациентов, получающих радикальную программу лечения с ожидаемым высоким онкологическим результатом. Однако для пациентов с одиночными метастазами в позвоночник может быть применена стратегия условно-радикального лечения, включающая в себя достижение полного локального контроля метастатического очага с последующим адекватно подобранным специфическим лечением. В последнем случае выживаемость пациентов может достигать нескольких лет. В СООД мы используем методику стереотаксической лучевой терапии с 2012 года для пациентов метастазами в позвонки. В настоящее время пролечено 32 человека, эффективность лечения составила 90,6% в плане купирования болевого синдрома. Методика является эффективным и достаточно безопасным методом лечения, позволяет сократить сроки лечения

Photocatalytic CO2 Conversion Using Anodic TiO2 Nanotube-CuxO Composites

Nanosized titanium dioxide (TiO2) is currently being actively studied by the global scientific community, since it has a number of properties that are important from a practical point of view. One of these properties is a large specific surface, which makes this material promising for use in photocatalysts, sensors, solar cells, etc. In this work, we prepared photocatalysts based on TiO2 nanotubes for converting carbon dioxide (CO2) into energy-intensive hydrocarbon compounds. Efficient gas-phase CO2 conversion in the prepared single-walled TiO2 nanotube-CuxO composites was investigated. Parameters of defects (radicals) in composites were studied. Methanol and methane were detected during the CO2 photoreduction process. In single-walled TiO2 nanotubes, only Ti3+/oxygen vacancy defects were detected. The Cu2+ centers and O2− radicals were found in TiO2 nanotube-CuxO composites using the EPR technique. It has been established that copper oxide nanoparticles are present in the TiO2 nanotube-CuxO composites in the form of the CuO phase. A phase transformation of CuO to Cu2O takes place during illumination, as has been shown by EPR spectroscopy. It is shown that defects accumulate photoinduced charge carriers. The mechanism of methane and methanol formation is discussed. The results obtained are completely original and show high promise for the use of TiO2-CuxO nanotube composites as photocatalysts for CO2 conversion into hydrocarbon fuel precursors

Photocatalytic CO₂ Conversion Using Anodic TiO₂ Nanotube-Cu_xO Composites

Nanosized titanium dioxide (TiO2) is currently being actively studied by the global scientific community, since it has a number of properties that are important from a practical point of view. One of these properties is a large specific surface, which makes this material promising for use in photocatalysts, sensors, solar cells, etc. In this work, we prepared photocatalysts based on TiO2 nanotubes for converting carbon dioxide (CO2) into energy-intensive hydrocarbon compounds. Efficient gas-phase CO2 conversion in the prepared single-walled TiO2 nanotube-CuxO composites was investigated. Parameters of defects (radicals) in composites were studied. Methanol and methane were detected during the CO2 photoreduction process. In single-walled TiO2 nanotubes, only Ti3+/oxygen vacancy defects were detected. The Cu2+ centers and O2− radicals were found in TiO2 nanotube-CuxO composites using the EPR technique. It has been established that copper oxide nanoparticles are present in the TiO2 nanotube-CuxO composites in the form of the CuO phase. A phase transformation of CuO to Cu2O takes place during illumination, as has been shown by EPR spectroscopy. It is shown that defects accumulate photoinduced charge carriers. The mechanism of methane and methanol formation is discussed. The results obtained are completely original and show high promise for the use of TiO2-CuxO nanotube composites as photocatalysts for CO2 conversion into hydrocarbon fuel precursors