CRCU

Chemical Research in Chinese Universities ›› 2021, Vol. 37 ›› Issue (3): 443-449.doi: 10.1007/s40242-021-1006-9

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Electrospun Aspirin/Eudragit/Lipid Hybrid Nanofibers for Colon-targeted Delivery Using an Energy-saving Process

WANG Yibin1, TIAN Liang1, ZHU Tianhao1, MEI Jing1, CHEN Zezhong1, YU Deng-Guang1,2   

  1. 1. School of Materials Science & Engineering, University of Shanghai for Science & Technology, Shanghai 200093, P. R. China;
    2. Shanghai Engineering Technology Research Center for High-Performance Medical Device Materials, Shanghai 200093, P. R. China
  • Received:2021-01-04 Revised:2021-03-20 Online:2021-06-01 Published:2021-05-31
  • Contact: YU Deng-Guang, CHEN Zezhong E-mail:ydg017@usst.edu.cn;zzhchen@usst.edu.cn
  • Supported by:
    This study was supported by the Natural Science Foundation of Shanghai, China(No.20ZR1439000) and the USST college student innovation projects, China(Nos.SH2020227 & XJ2020376-2020378).

Abstract: Both electrospinning apparatus and their commercial pro-ducts are extending their applications in a wide variety of fields. However, very limited reports can be found about how to implement an energy-saving process and in turn to reduce the production cost. In this paper, a brand-new type of coaxial spinneret with a solid core and its electrospinning methods are developed. A novel sort of medicated Eudragit/lipid hybrid nanofibers are gene-rated for providing a colon-targeted sustained release of aspirin. A series of characterizations demonstrates that the as-prepared hybrid nanofibers have a fine linear morphology with the aspirin/lipid separated from the matrix Eudragit to form many tiny islands. In vitro dissolution tests exhibit that the hybrid nanofibers are able to effectively prevent the release of aspirin under an acid condition (8.7%±3.4% for the first two hours), whereas prolong the drug release time period under a neutral condition(99.7±4.2% at the se-venth hour). The energy-saving mechanism is discussed in detail. The prepared aspirin-loaded hybrid nanofibers can be further transferred into an oral dosage form for potential application in counte-ring COVID-19 in the future.

Key words: Coaxial spinneret, Polymer/lipid hybrid fibers, Colon-targeted, Aspirin, COVID-19