Figure 1: SEM image of a MΦ–Mg motor; Mg-micromotor is pseudocolored in green and MΦ is pseudocolored in pink. All biological functions are moderated by biomachines, such as proteins, which can perform the most complex of tasks to a high degree of precision. Inspired by nature, micro- and nanosized biomachines have emerged as the next advancement in therapeutic technologies, with groundbreaking applications in drug delivery, microsurgery, and detoxification. Micro- and nanosized motors represent a crucial stepping-stone for the realization of versatile and functional artificial biomachines. Considerable research efforts have been spent toward the development of artificial motors and propulsion systems based on those found in various biomolecules and organisms. In order to achieve the desired capabilities, artificial micro- and nanomotors must be compatible with their biological environments, which requires designing motors that can move easily through fluids of diverse composition to carry out a task at a specific location. Among the different types of reported biocompatible micromotors, Mg‐based Janus micromotors offer distinct advantages for in vivo applications compared to th...