Program freezer function

Programmed freezer is a device specially used to freeze biological samples or chemical reagents. It has the following functions: 

1. Cryopreservation: Programmed freezer can quickly cool samples to very low temperatures, which can effectively prevent cell activity and slow down enzyme activity. and metabolic processes, thereby preventing sample degradation and changes and maintaining sample integrity and stability. 

2. Long-term storage: Programmed freezers are usually able to freeze and store samples at low temperatures, such as -80°C or lower, to extend the storage time of samples and maintain their quality. This is very important for long-term preservation of biological samples, such as cells, bacteria, serum, enzymes, etc., as well as some specific chemical reagents. 

3. Experimental operations: In biological and chemical experiments, some experiments need to be performed at low temperatures to maintain sample stability or control the rate of chemical reactions. Programmed freezers provide fast and precise cooling capabilities, providing the required low-temperature environment for experimental operations. 

4. Biological sample preparation: Many experiments require the manipulation of biological samples under low temperature conditions, such as frozen sectioning, cryo-electron microscopy, and cryopreserved cells. Programmed freezers provide the cryogenic conditions required to carry out these sample preparation processes. 

In general, the function of a program freezer is to provide a low-temperature environment to preserve and operate biological samples or chemical reagents that require low-temperature conditions. It plays an important role in scientific research, medical diagnosis, drug development and other fields