Conceptual illustration of conventional nonporous (A) and multifunctional porous (B) EGaIn composites upon compression. Here, porous structures can provide damping effect to substantially reduce stresses induced on liquid metal conductive pathways (see details in fig. S5), therefore endowing leakage-resistant property. In addition, antimicrobial additive can offer antibacterial and antiviral property. (C) Chemical structure of the antimicrobial additive, ε-PL, modified with BEHS for uniform dispersion in solvents. (D) Schematic of the EGaIn particle made by tip sonication of bulk EGaIn. (E) 3D tomography image of porous composites before sintering, showing EGaIn particle (yellow) distributions in elastomers (pink). Scale bar, 100 μm. (F) Photographs of compr...
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