Biohybrid microbots integrate biological actuators and sensors into synthetic chassis with the aim of providing the building blocks of next-generation micro-robotics. One of the main challenges is the development of self-assembled systems with consistent behavior and such that they can be controlled independently to perform complex tasks. Herein, it is shown that, using light-driven bacteria as propellers, 3D printed microbots can be steered by unbalancing light intensity over different microbot parts. An optimal feedback loop is designed in which a central computer projects onto each microbot a tailor-made light pattern, calculated from its position and orientation. In this way, multiple microbots can be independently guided through a series of spatially distributed checkpoints. By exploiting a natural light-driven proton pump, these bio-hybrid microbots are able to extract mechanical energy from light with such high efficiency that, in principle, hundreds of these systems can be controlled simultaneously with a total optical power of just a few milliwatts.

Light Controlled Biohybrid Microbots / Pellicciotta, Nicola; Bagal, OJUS SATISH; CARMONA SOSA, Viridiana; Frangipane, Giacomo; Vizsnyiczai, Gaszton; DI LEONARDO, Roberto. - In: ADVANCED FUNCTIONAL MATERIALS. - ISSN 1616-301X. - (2023). [10.1002/adfm.202214801]

Light Controlled Biohybrid Microbots

Nicola Pellicciotta;Ojus Satish Bagal;Viridiana Carmona Sosa;Giacomo Frangipane;Gaszton Vizsnyiczai;Roberto Di Leonardo
2023

Abstract

Biohybrid microbots integrate biological actuators and sensors into synthetic chassis with the aim of providing the building blocks of next-generation micro-robotics. One of the main challenges is the development of self-assembled systems with consistent behavior and such that they can be controlled independently to perform complex tasks. Herein, it is shown that, using light-driven bacteria as propellers, 3D printed microbots can be steered by unbalancing light intensity over different microbot parts. An optimal feedback loop is designed in which a central computer projects onto each microbot a tailor-made light pattern, calculated from its position and orientation. In this way, multiple microbots can be independently guided through a series of spatially distributed checkpoints. By exploiting a natural light-driven proton pump, these bio-hybrid microbots are able to extract mechanical energy from light with such high efficiency that, in principle, hundreds of these systems can be controlled simultaneously with a total optical power of just a few milliwatts.
2023
active matters; biohybrid microrobots; microswimmers
01 Pubblicazione su rivista::01a Articolo in rivista
Light Controlled Biohybrid Microbots / Pellicciotta, Nicola; Bagal, OJUS SATISH; CARMONA SOSA, Viridiana; Frangipane, Giacomo; Vizsnyiczai, Gaszton; DI LEONARDO, Roberto. - In: ADVANCED FUNCTIONAL MATERIALS. - ISSN 1616-301X. - (2023). [10.1002/adfm.202214801]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1683979
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