**3. Cell viability assessment**

Cell viability assessment is an indispensable aspect of biocompatibility testing for medical devices and pharmaceutical agents. It plays a critical role in evaluating the safety and effectiveness of these products, ensuring that they do not cause undue harm to living cells when they come into contact with the human body. Cell viability is a fundamental parameter in the evaluation of the biocompatibility of medical devices and pharmaceutical agents. It is defined as the number of healthy, functioning cells in a sample and serves as an essential indicator of the impact of a particular substance on cellular health. By assessing cell viability, researchers can gain insights into the potential toxic effects of medical devices and pharmaceuticals, enabling them to optimize their design and formulation to minimize the risk of adverse effects. Moreover, cell viability assessment is crucial in various other aspects of biomedical research, such as understanding the mechanisms of action of specific genes, proteins, and signaling pathways involved in cell survival or death. Furthermore, it plays a significant role in the development of novel therapeutic strategies, as researchers must ensure that new drugs or treatments do not cause unacceptable levels of cell damage or death.
