Table 2.

Types, schematic diagram and characteristics of polysaccharide derived materials.

Types	Amorphous Hydrogel	Microspheres	Membrane	Fiber	Microneedles
Schematic diagram
Security	Safety	Higher security	Safety	Low toxic	Safety
Processing difficulty	Easy	Easy	Easy	Easy	Easy
Biocompatibility	Good	Good	Good	Good	Aponia
Trauma	Small	Small	Small	Invasive small	Traumatic small
Other characteristics	Injectable	Low toxic	Selectivity	Workability	Invasive