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Arbitrary Construction of Versatile NIR-Driven Microrobots
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DOI：10.1002/adma.202402482.png)
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Emerging light-driven micro/nanorobots (LMNRs) showcase profound potential for sophisticated manipulation and various applications. However, the realization of a versatile and straightforward fabrication technique remains a challenging pursuit. This study introduces an innovative bulk heterojunction organic semiconductor solar cell (OSC)-based spin-coating approach, aiming to facilitate the arbitrary construction of LMNRs. Leveraging the distinctive properties of a near-infrared (NIR)-responsive organic semiconductor heterojunction solution, this technique enables uniform coating across various dimensional structures (0D, 1D, 2D, 3D) to be LMNRs, denoted as motorization. The film, with a slender profile measuring approximate to 140 nm in thickness, effectively preserves the original morphology of objects while imparting actuation capabilities exceeding hundreds of times their own weight. The propelled motion of these microrobots is realized through NIR-driven photoelectrochemical reaction-induced self-diffusiophoresis, showcasing a versatile array of controllable motion profiles. The strategic customization of arbitrary microrobot construction addresses specific applications, ranging from 0D microrobots inducing living crystal formation to intricate, multidimensional structures designed for tasks such as microplastic extraction, cargo delivery, and phototactic precise maneuvers. This study advances user-friendly and versatile LMNR technologies, unlocking new possibilities for various applications, signaling a transformative era in multifunctional micro/nanorobot technologies. A novel spin-coating method creates light-driven microrobots (LMNRs) using bulk heterojunction organic semiconductor solar cells (OSSC). This technique uniformly coats various structures with a near-infrared (NIR)-responsive OSSC, enabling microrobots to move under NIR light. Applications include microplastic removal, cargo transport, and precise, light-guided motion. image
Keyword:
arbitrary construction
NIR-driven microrobot
organic semiconductor heterojunction solar cell
期刊
IF:
26.8
论文数:
3.4W
被引数:
46.0W
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