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The composite structure of nanofibers has different functions due to the different properties of the material. The core-shell structured nanofibers are prepared by coaxial electrospinning, which can be composited with catalysts, drug molecules or biological factors, etc.
The fibers prepared by electrospinning can achieve controlled drug release in the field of biomedicine, effectively control drug diffusion, and shorten the distance of drug diffusion. PCL/gelatin fiber membrane is used to load drugs that inhibit proliferation to help wound healing.
Electrospinning technology is a special nanofiber manufacturing process. The advantages are simple manufacturing device, low spinning cost, many kinds of spinnable polymers, and controllable spinning process. Electrospun nanofibers, as a kind of nanomaterials, have the characteristics of high specific surface area, large aspect ratio and high porosity.
Small-diameter vascular stents (less than 6 mm) have a huge demand in clinic, but their clinical application is limited due to the occlusion of the graft, intimal hyperplasia, and thrombosis due to the small diameter. Electrospinning and melting electrostatic printing composite manufacturing provides a new method for the manufacture of small-diameter vascular stents.