Fig. 3.

A Schematic of the nanowire motor which was driven by ultrasound toward cancer cells, followed by NIR light-triggered drug release. Modified and reprinted from ref. [139]. Reproduced with permission. Copyright 2014, Wiley–VCH. B The illustration of the Bi-based tubular microrobot showing the performance for smart drugs or heavy metals delivery in vein with electrochemical release mechanism. Modified and reprinted from ref. [147]. Reproduced with permission. Copyright 2019, American Chemical Society. C Schematic illustration of MPCM@JMSNMs applied to thermomechanically percolating the cell membranes, and the scanning electron microscopy (SEM) image of MPCM@JMSNMs. Modified and reprinted from ref. [148]. Reproduced with permission. Copyright 2018, Wiley–VCH