Microscopic Boundary Examination

Microscopic examination of metals In this experiment, we aimed to investigate the microstructure of metals. By examining the microstructure of the metal, we determine which material is best suited for a particular application. For inspection of microstructures, use the most common method, optical method. We use a small sample cut from the metal to be checked. To clearly see the structure, first clean the sample and polish it. Initially, we began to polish sandpaper 1 and some better grades.

Histology is the study of microstructures of cells and tissues of plants and animals. It is usually done by examining tissue slices (called "slices") under an optical microscope or electron microscope. Unlike other types of structures that can be placed adjacent to each other and / or in contact with each other, in order to more easily and accurately distinguish different biological structures, histological staining can be used to identify specific types of Increase color or enhance color of biological structure. . Histology is an important tool in biology, medicine and veterinary medicine.

Histopathology refers to microscopic examination of various forms of human tissue. Specifically, in clinical medicine, histopathology refers to the examination of a biopsy or surgical specimen by a pathologist after processing the specimen and placing the tissue section on a glass slide. This is in contrast to cytopathological approaches using free cells or tissue fragments. Histopathologic examination of the tissue begins with surgery, biopsy or necropsy. Tissue is removed from living organisms and placed in fixative to stabilize tissue and prevent spoilage. Frozen section fixation is also common, but the most common fixative is formalin. To observe the tissue with a microscope, the section is stained with one or more pigments. The purpose of staining is to reveal cellular components and contrast is used to give contrast. In the case of cancer, this represents the tissue diagnosis required for most treatment regimens.

The abnormal tissue found in gastroscopy is biopsied by a surgeon or gastroenterologist. The tissue is then sent under microscope to a pathologist for histological examination to examine the presence of cancer cells. Biopsy and subsequent histologic analysis is the only reliable method to confirm the presence of cancer cells. Various gastroscopic modes have been developed to increase the yield of mucosa detected. In this case, the dye can enhance the cell structure and identify the stunned region. In endocytosis examination, super high magnification is required to show the structure of the cell and to better identify the developmental arrest region. Other gastric camera models such as optical coherence tomography are also investigating similar applications