It may seem like the ultimate in bling, but a new technique for tattooing gold onto living tissue is a step towards integrating human cells with electronic devices.
By building on a fabrication technique called nanoimprint lithography, scientists printed living mouse embryowith patterns of gold nanodots and nanowires. This, they say, is a significant first step towards adding more complex circuitry.
And it's not even just because cyborgs are cool. According to the scientists who developed it, led by engineer David Gracias of Johns Hopkins University, the technique could have incredible health applications.
Engineers have been looking for a way to integrate electronics with human biology for some time, but there are significant roadblocks. One of the biggest hurdles is the incompatibility of living tissue with the manufacturing techniques used to construct electronics. Although there are ways to make things small and flexible, they often use harsh chemicals, high temperatures, or vacuums that destroy living tissue or soft, water based materials.
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