23 Jul Wound healing dressing containing carrageenan, and preparation method and application of wound healing dressing
Abstract
The invention discloses a wound healing dressing containing carrageenan, and a preparation method and application of the wound healing dressing. The wound healing dressing is a porous composite stent with a three-dimensional porous interlayer structure, or a composite thin film, wherein the porous composite stent is obtained by blending collagen or gelatin with carrageenan in a mass ratio of (5: 95) to (95: 5) and then freeze-drying the mixture, and the composite thin film is obtained by directly drying the mixture after blending. The wound healing dressing disclosed by the invention is capable of guaranteeing nutrition supply required by tissues for normal healing, and can be degraded and disappear after the tissues are healed; simultaneously, the degradation product has the effects of promoting cell proliferation and matrix expression, and truly achieving the effect of wound healing. Besides, the porous composite stent and the composite thin film both are capable of providing a stent for other soft tissue engineering while promoting wound healing. The wound healing dressing disclosed by the invention is wide in use; specifically, the wound healing dressing can be used for healing large skin wounds caused by burn or anabrosis, and also can be used as tissue engineering stent materials such as cartilage, cornea and fat; or, the wound healing dressing can be used for other fields such as clinical medicine.
Year: 2013
Country: CN
Doc No: 103386145