Cool science: Researchers craft tiny biological tools using frozen ethanol

5 June 2025

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Imagine drawing on something as delicate as a living cell — without damaging it. Researchers have made this groundbreaking discovery using an unexpected combination of tools: frozen ethanol, electron beams and purple-tinted microbes. By advancing a method called ice lithography, the team was able to etch incredibly small, detailed patterns directly onto fragile biological surfaces.