fig3

Figure 3. Chemical methods for MLM preparation. (A) Spontaneous incorporation of Fe particles into an EGaIn droplet in HCl solution^[51]. Reprinted with permission. Copyright 2019, Royal Society of Chemistry; (B) Phagocytosis phenomenon of the EGaIn in different solutions^[75]. Reprinted with permission. Copyright 2017, John Wiley and Sons; (C) Reactive wetting-based MLM preparation^[54]. Reprinted with permission. Copyright 2023, Springer Nature. MLMs: Magnetic liquid metals; FPA: Fe3O4@PDA@Ag; PEG: polyethylene glycol.