A sheet structure formed from an extracellular matrix (ECM) composition that includes acellular ECM derived from small intestine submucosa (SIS) tissue, gentamicin and vancomycin. The sheet structure is configured to modulate inflammation of damaged biological tissue and induce cell and tissue proliferation, bioremodeling of the damaged biological tissue, and regeneration of new tissue and tissue structures with site-specific structural and functional properties, when the tissue structure is delivered to the damaged biological tissue.
