Table 1. Biomaterials have been investigated for heart regeneration.

Biomaterials	Advantages	Limitation
Collagen	Excellent biocompatibility and biodegradability	Low elastic modulus
Chitosan	Porosity; high elastic modulus	Non-cell adherent
Alginate	Gelation capacity; non-thrombogenic property	Lack of integration with cardiac cells
Synthetic materials	Improved mechanical properties; excellent strength and durability; better uniformity; lower risk of infection	Toxicity; low biocompatibility