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锌/ SU - 8微电机的形状控制运动。

Shape-controlled movement of Zn/SU-8 micromotors.

作者信息

Maric Tijana, Eklund Thamdrup Lasse Højlund, Boisen Anja

机构信息

The Danish National Research Foundation and Villum Foundation's Center for Intelligent Drug Delivery and Sensing Using Microcontainers and Nanomechanics (IDUN), Department of Health Technology, Technical University of Denmark Ørsted Plads, 2800 Kgs. Lyngby Denmark

Department of Health Technology, Technical University of Denmark 2800 Kgs. Lyngby Denmark.

出版信息

Nanoscale Adv. 2024 Nov 25;6(24):6134-6141. doi: 10.1039/d4na00721b. eCollection 2024 Dec 3.

DOI:10.1039/d4na00721b
PMID:39600826
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11587533/
Abstract

Creating micromotors (MMs) that will have the highest possible velocities has become one of the main focuses in the field of autonomous microdevices research. The importance of velocity stems from various autonomous microdevices applications, ranging from faster drug delivery to the eradication of various bacterial biofilms using only mechanical movement. To investigate how different shapes affect the velocity of Zn/SU-8 micromotors in acid solution, we fabricated micromotors with various geometries (Zn/SU-8/Cylindrical, Zn/SU-8/Rectangular cuboid, Zn/SU-8/Triangular prism, Zn/SU-8/Pentagonal prism and Zn/SU-8/Pentagrammic prism MMs). This is the first comparative study where shape has been isolated as the critical factor influencing micromotor velocity under the same catalytic surface conditions. Our results demonstrate that Zn/SU-8/Rectangular cuboid and Zn/SU-8/Triangular prism MMs exhibit significantly higher average velocities compared to the other studied MMs. The shape-optimized Zn/SU-8 micromotors, characterized by their simple synthesis process and low cost, offer significant potential to enhance efficiency and navigation in both environmental and medical applications through precise movement control.

摘要

制造具有尽可能高速度的微电机已成为自主微器件研究领域的主要重点之一。速度的重要性源于各种自主微器件应用，从更快的药物输送到仅通过机械运动根除各种细菌生物膜。为了研究不同形状如何影响锌/ SU - 8微电机在酸性溶液中的速度，我们制造了具有各种几何形状的微电机（锌/ SU - 8 /圆柱形、锌/ SU - 8 /长方体、锌/ SU - 8 /三棱柱、锌/ SU - 8 /五棱柱和锌/ SU - 8 /五角棱镜微电机）。这是第一项将形状作为在相同催化表面条件下影响微电机速度的关键因素进行分离的比较研究。我们的结果表明，与其他研究的微电机相比，锌/ SU - 8 /长方体和锌/ SU - 8 /三棱柱微电机表现出明显更高的平均速度。形状优化的锌/ SU - 8微电机具有简单的合成过程和低成本的特点，通过精确的运动控制，在环境和医疗应用中提高效率和导航方面具有巨大潜力。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/58b4/11614078/b079fc78e77b/d4na00721b-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/58b4/11614078/5eefc682add5/d4na00721b-s1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/58b4/11614078/7ff1eed3a44b/d4na00721b-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/58b4/11614078/24698433112d/d4na00721b-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/58b4/11614078/b079fc78e77b/d4na00721b-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/58b4/11614078/5eefc682add5/d4na00721b-s1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/58b4/11614078/7ff1eed3a44b/d4na00721b-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/58b4/11614078/24698433112d/d4na00721b-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/58b4/11614078/b079fc78e77b/d4na00721b-f3.jpg

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Janus Micromotors for Photophoretic Motion and Photon Upconversion Applications Using a Single Near-Infrared Wavelength.用于光泳运动和单近红外波长光子上转换应用的双面微电机
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