biological sample preservation

Biological sample preservation involves techniques to maintain the integrity of biological materials, like blood, tissue, or cells, over time. This is achieved through methods such as refrigeration or freezing to slow down or stop natural decay and microbial growth. Sometimes, chemicals like preservatives or fixatives are used to prevent degradation and maintain the sample's structure and composition. Proper preservation is essential for accurate testing, research, or long-term storage, ensuring that the biological material remains as close to its original state as possible until it is analyzed or used.