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Bio-Design and Manufacturing  2025 Vol.8 No.1 P.1-19

http://doi.org/10.1631/bdm.2300352


Review Microneedles for Non-Transdermal Drug Delivery: Design Strategies and Current Applications


Author(s):  Jinhong Xu, Xiangyi Liao, Danli Chen, Xiuzhuo Jia, Xufeng Niu

Affiliation(s):  Department of Pharmacy, The Fourth Central Hospital of Baoding City, Baoding 072350, China; more

Corresponding email(s):   2027911410@qq.com, nxf@buaa.edu.cn

Key Words:  Microneedles (MNs) · Biocompatible Materials · Non-transdermal drug delivery · Controlled release


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Jinhong Xu, Xiangyi Liao, Danli Chen, Xiuzhuo Jia, Xufeng Niu. Review Microneedles for Non-Transdermal Drug Delivery: Design Strategies and Current Applications[J]. Journal of Zhejiang University Science D, 2025, 8(1): 1-19.

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Abstract: 
Microneedles (MNs) are an innovative and viable option for drug delivery that offer the distinct advantages of minimal inva‐ siveness, painlessness, stable drug loading, efficient drug permeation, and biocompatibility. MNs were first used to penetrate the skin surface and facilitate transcutaneous drug delivery with great success. Recent applications of MNs have extended to non-transdermal drug delivery, specifically, to various tissues and organs. This review captures the fabrication methods for MNs, discusses advanced design strategies for achieving controlled drug release, and summarizes current MN applications in delivering multiple therapeutic agents to the cardiovascular, digestive (e.g., oral cavity), reproductive, and central nervous systems. The findings in this review would contribute toward the improved designs of MN systems that can be modified ac‐ cording to purpose, including material selection, structural design, choice of fabrication methods, and tissue considerations, to determine the optimal therapeutic regimen for the target treatment area

基于优化的共形路径规划指导原位生物打印修复皮肤损伤

作者:赵文祥1,2,胡楚雄1,2,王煜楠1,2,林世泽1,2,汪泽1,2,徐弢3
机构:1清华大学机械工程系高端装备界面科学与技术全国重点实验室, 中国北京市,100084;2清华大学机械工程系精密超精密制造装备及控制北京市重点实验室, 中国北京市,100084;3深圳清华大学研究院生物智能制造和活体打印研发中心,中国深圳市,518057
摘要:随着全球对高效皮肤损伤治疗方法的需求不断增长,组织工程技术成为研 究热点。原位生物打印技术因其在植入打印支架时降低风险并展现出更好的治疗 效果而受到关注。本研究提出一种创新的基于优化的共形路径规划策略,专门用 于修复复杂的皮肤损伤。该策略通过约束优化方法,在点云近似的曲面上确定最 佳路径点,确保了预设计的平面路径与实际曲面路径之间的高度一致性。此外, 这种方法在皮肤伤口治疗中具有实际应用价值,因为它能够沿着表面切线生成等 距的三维之字形曲线,并支持多层共形路径规划,有助于处理体积较大的损伤。 研究发现,所提出的方法在小鼠背部损伤模型和其他复杂模型中均显示出了可行 性和有效性,这表明它能够指导原位生物打印,提高打印精度,并有助于改善临 床治疗效果。相关研究结果为未来皮肤损伤治疗提供新方向和便利。

关键词:原位打印;路径规划;机器人控制;皮肤损伤修复

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