3D-printed microrobots from design to translation

Sajjad Rahmani Dabbagh, Misagh Rezapour Sarabi, Mehmet Tugrul Birtek, Siamak Seyfi, Metin Sitti () and Savas Tasoglu ()
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Sajjad Rahmani Dabbagh: Koç University, Sariyer
Misagh Rezapour Sarabi: Koç University, Sariyer
Mehmet Tugrul Birtek: Koç University, Sariyer
Siamak Seyfi: Koç University, Sariyer
Metin Sitti: Koç University, Sariyer
Savas Tasoglu: Koç University, Sariyer

Nature Communications, 2022, vol. 13, issue 1, 1-24

Abstract: Abstract Microrobots have attracted the attention of scientists owing to their unique features to accomplish tasks in hard-to-reach sites in the human body. Microrobots can be precisely actuated and maneuvered individually or in a swarm for cargo delivery, sampling, surgery, and imaging applications. In addition, microrobots have found applications in the environmental sector (e.g., water treatment). Besides, recent advancements of three-dimensional (3D) printers have enabled the high-resolution fabrication of microrobots with a faster design-production turnaround time for users with limited micromanufacturing skills. Here, the latest end applications of 3D printed microrobots are reviewed (ranging from environmental to biomedical applications) along with a brief discussion over the feasible actuation methods (e.g., on- and off-board), and practical 3D printing technologies for microrobot fabrication. In addition, as a future perspective, we discussed the potential advantages of integration of microrobots with smart materials, and conceivable benefits of implementation of artificial intelligence (AI), as well as physical intelligence (PI). Moreover, in order to facilitate bench-to-bedside translation of microrobots, current challenges impeding clinical translation of microrobots are elaborated, including entry obstacles (e.g., immune system attacks) and cumbersome standard test procedures to ensure biocompatibility.

Date: 2022
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DOI: 10.1038/s41467-022-33409-3

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