Dip-drawing Process Characterization of Making High-aspect-ratio Polymeric Microneedles

Chieh Yang, Kerwin Wang
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Abstract

This paper presents a parametric study of a dip-drawing process for making high aspect-ratio polymeric microneedles. The process involves dip-pad spin coating, mold based dip-drawing, UV-curing, necking-break, and final curing. To gain more insight into the process, we characterize the dip-drawing speed and curing time to determine the critical parameters for the microneedle geometry control. The experiment results show that the diameters of the microneedle tips are gradually decreased to 1.69 $\mu$m with increasing of drawing speed.
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高纵横比聚合物微针的浸拔工艺表征
本文对高纵横比聚合物微针的浸拔工艺进行了参数化研究。该工艺包括浸垫旋转涂层,基于模具的浸拔,紫外光固化,颈断和最终固化。为了更深入地了解这一过程,我们对浸出速度和固化时间进行了表征,以确定微针几何控制的关键参数。实验结果表明,随着拉伸速度的增加,微针尖的直径逐渐减小到1.69 $\mu$m。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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