RESUMO
The optimal management of locally gastric cancer persists a matter of intense discussion. Frequently cases with esophagogastric cancer are handled with preoperative chemotherapy [the more typical European method] or mixed chemoradiotherapy. The present research examines a comparison of overall retention and disease-free retention among gastric cancer cases managed via two Adjuvant and Neoadjuvant methods. We showed the features of quick gastric neoplasms operated by ESD. This research showed that ESD for quick gastric neoplasms is a typical approach since the en bloc and curative resection percentages are very high, and residual infection or recurrence is limited. Nevertheless, we further demonstrated that the obstacles connected to this method are the long method time and comparatively high rates of procedure-related developments. We should explore methods to reduce the method time and reduce these difficulties.
RESUMO
ZnO-ZnS-Ag2S ternary nanostructures were prepared by a simple and low-cost chemical precipitation method. The sample was characterised by X-ray diffraction, energy-dispersive X-ray, UV-Vis-NIR, Raman and Fourier transform infrared spectroscopy. Morphology of the sample was studied by scanning electron microscopy and it was observed that ZnO nanoplates were covered with ZnS and Ag2S nanoparticles. A high resolution transmission electron microscope was used to obtain further information about the crystalline domains of the prepared ternary nanostructure. The Kramers-Kronig method and classical dispersion theory were utilised to study the optical properties of the sample in the far-infrared region. Photocatalytic activity of the prepared samples was also attained in the gas-solid phase by using a solar lamp (simulating outdoor lighting) and monitoring NOx degradation.
