Chinese Journal of Applied Chemistry ›› 2022, Vol. 39 ›› Issue (10): 1523-1532.DOI: 10.19894/j.issn.1000-0518.210553

• Full Papers • Previous Articles     Next Articles

Structure and Performance Modulation of Self‑Adhesive SIS/C5 Electrospun Membranes for Transdermal Drug Delivery

Feng-Shuo LIU1, Qian DONG2, Zhong-Fu ZHAO1(), Wei LIU1, Chun-Qing ZHANG1()   

  1. 1.State Key Laboratory of Fine Chemicals,School of Chemical Engineering,Dalian University of Technology,Dalian 116024,China
    2.Affiliated Cancer Hospital of Dalian University of Technology (Liaoning Cancer Hospital),Shenyang 110042,China
  • Received:2021-12-02 Accepted:2022-04-27 Published:2022-10-01 Online:2022-10-05
  • Contact: Zhong-Fu ZHAO,Chun-Qing ZHANG
  • About author:zhangchq@dlut.edu.cn
    zfzhao@dlut.edu.cn
  • Supported by:
    the Fundamental Research Funds for the Central Universities(DTU21YG132);the National Natural Science Foundation of China(51673034)

Abstract:

Electrospun membranes are widely utilized to enhance the water vapor permeability and drug delivery performance of transdermal drug delivery patches. Due to the lack of adhesion property, however, most of them cannot closely contact with skin, which impedes the delivery of drugs to the skin, thus affecting the transdermal administration. C5 resin is used to endow poly(styrene isoprene styrene) (SIS) electrospun membranes with pressure-sensitive adhesion property. Investigation is performed on how to control the structure, adhesion properties and drug delivery performance of SIS/C5 electrospun membranes loaded with synthetic capsaicin via compositions, drugs and electrospinning conditions. The results demonstrate that the electrospun membrane with a SIS/C5 ratio of 2∶1 has excellent water vapor permeability (7.17×10-3 g/(h·cm2) and adhesion properties (180(°) peel strength is 0.2 kN/m, tack force is 0.64 N/cm2, holding power is greater than 7 days). The synthetic capsaicin has good compatibility with the SIS/C5 electrospun membranes, in which no drug crystallizes and the drug loading is beneficial to improve the water vapor permeability. As the drug loading is 8%, the tack force is 0.6~0.8 N/cm2, the 180(°) peel strength is 0.2~0.3 kN/m, the holding power is greater than 7 days, and no residue is left during peeling tests. In vitro drug release indicates that the drug has a behavior of sustained release with a 24-hour cumulative release rate of greater than 50% for all SIS/C5 electrospun membranes, meeting the requirements of transdermal drug delivery patches.

Key words: External patch, Electrospinning, Self-adhesiveness, Drug sustained release

CLC Number: