| 초록 |
Due to its unique electrical, mechanical and rheological properties, liquid metal attracts increasing interest, especially as a promising electrode material in flexible/stretchable electronics. Recently, one of the most actively studied liquid metal is eutectic gallium-indium liquid metal(EGaIn). EGaIn is moldable because forms gallium oxide on the surface which drops surface tension. It has been known that EGaIn has relatively low toxicity but little systematic study about EGaIn cytotoxicity has been reported. Here, we present time-dependent release profiles of Ga and In ions from EGaIn droplet and the effect of droplet surface area and sonication. To evaluate the toxicity of EGaIn, we performed cytotoxicity test. EGaIn releasates are generally non-toxic, but the cells exhibited less than 50% proliferation after 3 days of culture in the presence of the EGaIn releasates by 20 min sonication. Our findings could provide a guideline in using EGaIn, especially for bio-related applications. |
