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Nanobots Glide Through Living Cells


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A nanobot.

Scientists at the Indian Institute of Science in Bangalore, India, have been able to control nanomachines inside of living cells using rotating magnetic fields.

Credit: Ambarish Ghosh/Indian Institute of Science

Using small, rotating magnetic fields, researchers at the Indian Institute of Science in Bangalore, India, have been able to control nanomachines inside of living cells to trace the letters "N" and "M."

They developed a strategy for moving the devices in a controlled fashion, says the Indian Institute of Science's Malay Pal. He notes the team created nanomotors out of silica, and then coated them with iron.

The researchers placed a dish containing the cells within a magnetic coil under a microscope, and were able to control and track the movement of the nanomotors inside the cells by rotating the magnetic field.

Pal says the tiny machines “have tremendous potential in applications like targeted drug delivery, nano sensing, therapeutic(s) and nano surgery.”

From IEEE Spectrum
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