Abstract
Chitin is the second abundant natural polysaccharide, and the development of chitin and its derivatives have received more and more attention. Glucosamine sulfate (GAS) obtained by the hydrolysis of chitin can promote the growth of chondrocytes. The coaxial electrospinning technology had been utilized to encapsulated GAS into the core of polycaprolactone (PCL) nanofibers. It could protect the GAS from the environment and allow it to release sustainably over time. From the results of scanning electron microscopy (SEM), PCL/GAS nanofibers performed a typical fiber scaffold surface. Transmission electron microscopy (TEM) and energy dispersive X-ray spectroscopy (EDX) results confirmed the feasibility to use coaxial electrospinning to load GAS. Tensile tests exhibited that PCL/GAS mats could be stretched more than twice its own length. Besides, the cell experiments illustrated that PCL/GAS had a significant effect on the proliferation and growth of rat articular chondrocytes, attesting its prospect for cartilage regeneration.
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