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. 2022 Mar 20;13(3):481. doi: 10.3390/mi13030481

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© 2022 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Acoustics-actuated microrobots for targeted drug delivery. (A) Ultrasound-propelled magnetically guided nanowire motor for selective capture and transport of biological targets. (B) Porous gold nanowire structure for drug loading. (C) Structural characterization of the hollow spiral device. (D) Precise manipulations of cancer cells based on the vision-feedback control strategy. (E) Schematic diagram of micro-object manipulation in blood vessels using a microrobot incorporated with an acoustically oscillating bubble. (a) test setup; (b1,b2,b3) micro-object manipulation in human blood vessels using the designed microrobot. Reproduced with permission from Refs. [76,77,78,79,80], respectively.