Issue 4, 2024

Additively manufactured customized microhelix motors' bursting motion in mesoscopic tubes for vessel declogging

Abstract

Magnetic microhelix motors are widely employed in various applications such as cargo transportation, drug delivery, toxic substance declogging, and cell manipulation, due to their unique adaptive magnetic manipulation capabilities. In this work, high-precision stereoscopic additive manufacturing techniques were used to produce customized microhelices with varying structural parameters, including different pitch numbers (2–4 pitches), sizes (0.1–0.25 mm), and taper angles (172°–180°). Their motion performance in mesoscopic tubes was systematically investigated. The magnetic microhelix motors' speed increases when circle numbers and taper angles decrease, while circle diameters increase. The magnetic microhelix motors' speed could achieve a 1500% enhancement reaching 0.16 mm s−1 in a 0.3 mm tube, with a pitch number of 3, diameter of 0.2 mm, and taper angle of 172°. Furthermore, their vessel declogging capability is confirmed in in vitro experiments.

Graphical abstract: Additively manufactured customized microhelix motors' bursting motion in mesoscopic tubes for vessel declogging

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Article information

Article type
Paper
Submitted
11 Nov 2023
Accepted
05 Jan 2024
First published
16 Jan 2024
This article is Open Access
Creative Commons BY license

RSC Adv., 2024,14, 2720-2726

Additively manufactured customized microhelix motors' bursting motion in mesoscopic tubes for vessel declogging

Y. Cao, H. Yi, K. Ge, Y. Gao, Z. Zhang and H. Feng, RSC Adv., 2024, 14, 2720 DOI: 10.1039/D3RA07704G

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

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