Morphology and Structure Properties of PEG-b-PBT, PEG-b-PBT-HA Nanofibers Based Gas-electrospun
The block copolymer solutions were prepared by dissolving polyethylene glycol/polybutylene terephthalate (PEG-b-PBT) with different intrinsic viscosities in chloroform.The composite ultrafine nanofibers of PEG-b-PBT and PEG-b-PBT-HA(hydroxyapatite) were obtained by gas-electrospun,and were characterized by scanning electron microscopy (SEM),horizontal attenuated total reflectance for Fourier transform infrared spectrometer (HATR-FTIR),dynamic contact angle measuring apparatus and differential scanning calorimetry (DSC).The gas-electrospun fibrous membranes,which were made of ultrafine fibers with average diameter 180-1200nm and well-interconnected pores,were possessed with high surface-to-volume ratio and excellent hydrophilicity.The above results strongly suggest that fibrous membranes combine advantages of synthetic biodegradable polymers and nanometer-scale dimension for mimicking the natural ECM,and may represent an ideal tissue engineering scaffold,particularly for soft tissue,such as skin and cartilage tissue engineering scaffold.
Gas-electrospun Tissue engineering Fibrous membranes HA PEG-b-PBT
Xiaozhan Yang Zhensheng Li Jining Gao Lilong Zhang
Chongqing University of Technology, Chongqing 400054, China Third Military Medical University, Chongqing, 400054, China
国际会议
厦门
英文
894-897
2012-01-04（万方平台首次上网日期，不代表论文的发表时间）