Tissue Block Volume in Biological Microscopy
So far, cryofixation, frozen ultra-thin sectioning, and freeze-drying are routine methods for tissue and cell X-ray microscopy. Please provide the following details regarding this method:
A biological microscope with a spotlight can move the spotlight up and down to achieve moderate brightness, and the aperture of the variable aperture can also be changed to achieve moderate brightness. If the light is from the sun, the spotlight can be raised appropriately and the aperture of the variable light can be enlarged appropriately. If the light is too strong, the spotlight can be lowered appropriately, and the aperture of the intersection can be reduced appropriately. If you still feel dazzling in this situation, you can choose to place an appropriate filter on the bracket under the spotlight. This oak can achieve a brightness that satisfies you. Of course, adjusting the upper and lower positions of the spotlight can change the aperture size of the light reading and select suitable filters, which requires a certain period of practice and experience.
A very important issue in biological microscopy is the process of sampling and isolating cells. After freeze-drying and resin embedding (FD), the frozen ultra-thin sections must be carefully processed to ensure that the 65 element content of each part is not damaged during observation and analysis. Due to the numerous steps and high cost involved in X-ray microanalysis, it is regrettable to draw incorrect conclusions if the analyzed cells are damaged or dead after prolonged and multi-step processing. The myocardial cells separated by gelatinase treatment have two forms, one is long rod-shaped and the other is circular. The latter refers to dying cells that are damaged during the process of cell separation.
