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Article

Transdermal Composite Microneedle Composed of Mesoporous Iron Oxide Nanoraspberry and PVA for Androgenetic Alopecia Treatment

1
Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 300, Taiwan
2
Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan
3
Graduate Institute of Biomedical Engineering, National Chung Hsing University, Taichung 402, Taiwan
*
Author to whom correspondence should be addressed.
Polymers 2020, 12(6), 1392; https://doi.org/10.3390/polym12061392
Received: 29 May 2020 / Revised: 19 June 2020 / Accepted: 19 June 2020 / Published: 22 June 2020
(This article belongs to the Special Issue Advanced Polymer Nanocomposites)
The transdermal delivery of therapeutic agents amplifying a local concentration of active molecules have received considerable attention in wide biomedical applications, especially in vaccine development and medical beauty. Unlike oral or subcutaneous injections, this approach can not only avoid the loss of efficacy of oral drugs due to the liver’s first-pass effect but also reduce the risk of infection by subcutaneous injection. In this study, a magneto-responsive transdermal composite microneedle (MNs) with a mesoporous iron oxide nanoraspberry (MIO), that can improve the drug delivery efficiency, was fabricated by using a 3D printing-molding method. With loading of Minoxidil (Mx, a medication commonly used to slow the progression of hair loss and speed the process of hair regrowth), MNs can break the barrier of the stratum corneum through the puncture ability, and control the delivery dose for treating androgenetic alopecia (AGA). By 3D printing process, the sizes and morphologies of MNs is able to be, easily, architected. The MIOs were embedded into the tip of MNs which can deliver Mx as well as generate mild heating for hair growth, which is potentially attributed by the expansion of hair follicle and drug penetration. Compared to the mice without any treatments, the hair density of mice exhibited an 800% improvement after being treated by MNs with MF at 10-days post-treatment. View Full-Text
Keywords: 3D printing process; mesoporous iron oxide; microneedles; minoxidil 3D printing process; mesoporous iron oxide; microneedles; minoxidil
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MDPI and ACS Style

Fang, J.-H.; Liu, C.-H.; Hsu, R.-S.; Chen, Y.-Y.; Chiang, W.-H.; Wang, H.-M.D.; Hu, S.-H. Transdermal Composite Microneedle Composed of Mesoporous Iron Oxide Nanoraspberry and PVA for Androgenetic Alopecia Treatment. Polymers 2020, 12, 1392. https://doi.org/10.3390/polym12061392

AMA Style

Fang J-H, Liu C-H, Hsu R-S, Chen Y-Y, Chiang W-H, Wang H-MD, Hu S-H. Transdermal Composite Microneedle Composed of Mesoporous Iron Oxide Nanoraspberry and PVA for Androgenetic Alopecia Treatment. Polymers. 2020; 12(6):1392. https://doi.org/10.3390/polym12061392

Chicago/Turabian Style

Fang, Jen-Hung, Che-Hau Liu, Ru-Siou Hsu, Yin-Yu Chen, Wen-Hsuan Chiang, Hui-Min D. Wang, and Shang-Hsiu Hu. 2020. "Transdermal Composite Microneedle Composed of Mesoporous Iron Oxide Nanoraspberry and PVA for Androgenetic Alopecia Treatment" Polymers 12, no. 6: 1392. https://doi.org/10.3390/polym12061392

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