期刊
PHARMACEUTICS
卷 13, 期 7, 页码 -出版社
MDPI
DOI: 10.3390/pharmaceutics13071058
关键词
poly(lactic-co-glycolic acid); dissolving microneedle; sustained release; melting method; thermoplastic characteristics; drug delivery system
资金
- Korea Health Technology R&D Project through the Korea Health Industry Development Institute (KHIDI) - Ministry of Health and Welfare, Republic of Korea [HI16C0625]
- National Research Foundation of Korea (NRF) - Korean government (MSIT) [2020M3E5D8108104]
- Brain Korea 21 (BK21) program
The study introduced a novel heat-melting method to fabricate hydrophobic PLGA DMNs for transdermal drug delivery, avoiding potentially harmful organic solvents. The implanted HMP-DMNs successfully separated from the patch within 10 minutes and released encapsulated molecules for nearly 4 weeks, demonstrating safe and effective sustained drug delivery without the use of organic solvents. This research offers an innovative approach to utilizing PLGA as a material for transdermal drug delivery systems.
Dissolving microneedles (DMNs) have been used as an alternative drug delivery system to deliver therapeutics across the skin barrier in a painless manner. In this study, we propose a novel heat-melting method for the fabrication of hydrophobic poly(lactic-co-glycolic acid) (PLGA) DMNs, without the use of potentially harmful organic solvents. The drug-loaded PLGA mixture, which consisted of a middle layer of the DMN, was optimized and successfully implanted into ex vivo porcine skin. Implanted HMP-DMNs separated from the patch within 10 min, enhancing user compliance, and the encapsulated molecules were released for nearly 4 weeks thereafter. In conclusion, the geometry of HMP-DMNs was successfully optimized for safe and effective transdermal sustained drug delivery without the use of organic solvents. This study provides a strategy for the innovative utilization of PLGA as a material for transdermal drug delivery systems.
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