Abstract
The use of motile cells as bioactuators has enabled the development of biohybrid microrobots, with wide biological and biomedical applications. These biohybrid microrobots have unique advantages of high propulsion efficiency, high power-to-weight ratio, and high biocompatibility. Algae, bacteria, and sperm are typical bioactuators for building biohybrid microrobots. Compared to algae and bacteria, sperm do not proliferate and are safer for potential in vivo applications. The past decade has witnessed significant progress in sperm hybrid microrobots. This chapter reviews recent development of sperm hybrid microrobots. The design, fabrication, and control of such microrobots are introduced. Potential applications and future challenges are also discussed.
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