Simulated skin model for in vitro evaluation of insertion performance of microneedles: design, development, and application verification

作者：Rui Su, Ruipeng Zhang, Yuan Wang, Zhipeng Li, Li Zhang, Shichao Ma, Xuemei Li, Fengsen Ma, Hongyang Fu · 发表于：Computer Methods in Biomechanics & Biomedical Engineering · 年份：2024 · DOI：10.1080/10255842.2024.2372621 · 被引用次数：4 · 研究领域：Advancements in Transdermal Drug Delivery、Ocular Surface and Contact Lens、Skin Protection and Aging

Microneedles, as a new efficient and safe transdermal drug delivery technology, has a wide range of applications in drug delivery, vaccination, medical cosmetology, and diagnostics. The degree of microneedles penetration into the skin determines the reliability of the delivery dose, but its evaluation is not yet well-established, which is one of the major constraints in the commercialization of microneedles. In this paper, a novel visual simulated skin model was developed with reference to the physical properties of real skin. The simulated skin model was well-designed and its prescription was optimized to make the thickness, hardness, elasticity, and other parameters close to those of real skin. It not only meets the need to assess the degree of insertion of microneedles but also provides a visual observation of the insertion state of microneedles.