REAGENT or RESOURCE	SOURCE	IDENTIFIER
Chemicals, peptides, and recombinant proteins
Chitosan low molecular weight	Macklin	CAS:9012-76-4
Acetic acid	aladdin	CAS:64-19-7
Heparin sodium	Macklin	CAS:9041-08-1
N-hydroxysuccinimide (NHS)	Macklin	CAS:6066-82-6
N-(3-Dimethylaminopropyl)-N’- ethylcarbodiimide (EDC)	Macklin	CAS:1892-57-5
Cell Counting Kit-8(CCK8)	DOJINDO	CAS:CK04-500T
Porcine platelet-derived growth factor, PDGF ELISA	MEIMIAN	CAS:MM-0484O2
Porcine vascular endothelial cell growth factor, VEGF ELISA	Andygene	CAS:AD0069Po
Dopamine (hydrochloride)	Solarbio	CAS:D806618-500g
Trimethylaminomethane (TRIS)	Macklin	CAS:T818967-100g
Deoxyribonucleic acid (DNA) test kit	HKHCBIO	CAS:C11724
Rhodamine-Phalloidin	Solarbio	CAS:CA1610-300T
DAPI dye solution	Beyotime	CAS:C1006
Calcein -AM/PI live/dead staining kit	YOBIBIO	CAS:U23-002A
Antibodies
a-SMA monoclonal antibody	Bioss	CAS:bsm-33187M-100ul
KI67 Cell Proliferation Kit	BBI	CAS:E607238-0100
CD31 antibody	FineTest	CAS:FNab01464
Bacterial and virus strains
Gram-positive Staphylococcus aureus	ATCC	ATCC 27735
Gram-negative Escherichia coli	ATCC	ATCC 8099
Experimental models: Cell lines
Immortalized human dermal keratinocytes (HaCaT)	MEISENCTCC	CTCC-0383-Luc1
Human umbilical vein endothelial cells(HUVEC)	iCell	iCell-0050a
Mouse fibroblasts (L929 Cells)	NEWGAINBIO	CM3075
Software and algorithms
ImageJ	National Institutes of Health, USA
SPSS version 23.0	IBM Corporation
GraphPad 8.02	GraphPad Software, USA