Electrospinning of PLGA/gelatin randomly-oriented and aligned nanofibers as potential scaffold in tissue engineering |
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Authors: | Z.X. Meng Y.S. Wang C. Ma W. Zheng L. Li Y.F. Zheng |
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Affiliation: | 1. Center for Biomedical Materials and Engineering, Harbin Engineering University, Harbin 150001, China;2. Department of Orthopedic Surgery, Second Affiliated Hospital of Harbin Medical University, Harbin 150001, China;3. Department of Advanced Materials and Nanotechnology, College of Engineering, Peking University, Beijing 100871, China |
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Abstract: | Electrospinning technique can be used to produce the three-dimensional nanofibrous scaffold similar to natural extracellular matrix, which satisfies particular requirements of tissue engineering scaffold. Randomly-oriented and aligned poly(lactic-co-glycolic acid) (PLGA) and PLGA/gelatin biocomposite scaffolds were successfully produced by electrospinning in the present study. The resulting nanofibrous scaffolds exhibited smooth surface and high porous structure. Blending PLGA with gelatin enhanced the hydrophilicity but decreased the average fiber diameter and the mechanical properties of the scaffolds under the same electrospinning condition. The cell culture results showed that the elongation of the osteoblast on the aligned nanofibrous scaffold was parallel to the fiber arrangement and the cell number was similar to that of randomly-oriented scaffold, indicating that the aligned nanofibrous scaffold provide a beneficial approach for the bone regeneration. |
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