期刊
PHARMACEUTICS
卷 13, 期 2, 页码 -出版社
MDPI
DOI: 10.3390/pharmaceutics13020253
关键词
electrospinning; nanofiber sheets; small intestine submucosa; drug; sustained delivery
资金
- National Research Foundation of Korea (NRF)
- Creative Materials Discovery Program [2019M3D1A1078938]
- Priority Research Centers Program [2019R1A6A1A11051471]
Small intestine submucosa (SIS) was chosen as a drug carrier and electrospun into nanofiber sheets. Poly(epsilon-caprolactone-ran-l-lactide) (PCLA) copolymers were used to improve the electrospinning performance of SIS, resulting in adjustable S/P-NS with different porosities and tensile strengths. The electrospun S/P-NS successfully delivered dexamethasone (Dex) and silver sulfadiazine (AgS) for sustained release over three weeks, suppressing macrophage infiltration.
In this work, we chose small intestine submucosa (SIS) as a drug carrier because SIS possesses good biocompatibility, non-immunogenic property and bio-resorbability, and performed electrospinning for preparation of nanofiber sheets (NS). For the preparation of drug-loaded electrospun SIS nanofiber sheets as a drug carrier, we used poly(epsilon-caprolactone-ran-l-lactide) (PCLA) copolymers to improve the electrospinning performance of SIS. The electrospinning of SIS and PCLA provided the electrospun SIS/PCLA (S/P)-nanofiber sheet (S/P-NS) with adjustable thickness and areas. The electrospun S/P-NS showed different porosities, pore sizes, diameters and tensile strengths depending on the ratios between SIS and PCLA. The electrospun S/P-NS was used as a drug carrier of the dexamethasone (Dex) and silver sulfadiazine (AgS) drug related to anti-inflammation. Dex-loaded S/P-NS and AgS-loaded S/P-NS was successfully fabricated by the electrospinning. In the in vitro and in vivo release, we successfully confirmed the possibility for the sustained release of Dex and AgS from the Dex-S/P-NS and AgS-S/P-NS for three weeks. In addition, the sustained Dex and AgS release suppressed the macrophage infiltration. Collectively, we achieved feasible development of SIS nanofiber sheets for a sustained Dex and AgS delivery system.
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