Researchers at Iowa State Univ. (ISU) have developed a unique technology that prints metal patterns on the softest of surfaces, including rose petals and gelatin.
The technique uses a type of particle with a liquid metal core that remains fluid even at temperatures below its melting point, thanks to its unique outer shell. The shell keeps the metal from solidifying (i.e., nucleating).
Each particle’s metal core is coated with an oxide layer, and then an organic ligand layer that stabilizes the oxide layer. The oxide layer, which forms when the metal is exposed to air, protects the liquid metal core from changes in temperature, until it breaks...
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