Table 3.

Commonly used non-absorbable suture materials.

	Name	Structure	Characteristic	Preparation Method	Ref.
Natural non-absorbable suture material	silk	monofilament	Good biocompatibility, low tensile strength, easy bacterial infection,	Wet spinning	[125]
Synthetic non-absorbable suture material	nylon	monofilament	A certain tensile strength can reduce tissue infection and fight thrombosis	Melting, forming, cooling	[132]
	PP	monofilament	Low tissue reactivity, high tensile strength, high plasticity, adapted to wound edema	Chemical synthesis, usually surface coating to prepare sutures	[135]
	PET	multifilament	Extremely high tensile strength, good operability, not easy to degrade	Chemical synthesis, usually surface coating to prepare sutures	[137]