Abstract
Hepatocyte spheroids and hepatocyte were immobilized in chitosan/alginate capsules formed by the electrostatic interactions between chitosan and alginate. After encapsulation, there was a 10% decrease in the viability of spheroids due to the exposure of the cells to a pH 6 during the encapsulation process. However, the encapsulated hepatocyte spheroids maintained over 50% viability and liver specific functions for 2 weeks while the encapsulated hepatocytes, free hepatocytes and free hepatocyte spheroids showed low viability and liver specific functions. Therefore, encapsulated hepatocyte spheroid might be applied to the development of a bioartificial liver.
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