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. 2018 May 5;9(5):218. doi: 10.3390/mi9050218

Figure 7.

Figure 7

(A) Fabrication of Fe-coated LMDs. Reproduced with permission from [44]; (B) Surface-coated LMD with ferromagnetic materials induced by magnetic field. Reproduced with permission from [44]; (C) Sequential photos of LMD motion in an electrical field; (D) Liquid-metal droplet wire; (E) Average velocity of LMDs in a straight channel containing NaOH solution under exposure to different voltages, and the concentrations of the NaOH solution [46] (Reproduced with permission); (F) The electric current in response to different voltages, and the concentrations of the NaOH solution. Reproduced with permission from [47].