Table 2. Summary of the Synthetic ECMs Based on the Polymers.

polymer basis	fabrication of the ECMs
polyethylene glycol	functionalized with arginylglycylaspartic acid and laminin-111
nanocellulose	carboxylated and functionalized with cell-adhesive peptides and then cross-linked with cations (such as Ca2+ and Mg2+)
	blended with type I collagen as a hybrid matrix
alginate	gelated by cross-linking with Ca2+
hyaluronic acid	formation of hydrazone bond between modified HA and modified benzaldehyde biopolymers
polylactic-co-glycolic acid	PLGA nanoparticles blended with Matrigel as a hybrid matrix