" And when they applied an oscillating magnetic field, the nanoswimmer moved in an S-like, undulatory motion at the speed of nearly one body length per second. "
If applying an external magnetic field, why not just use that to direct the drug delivery?
Often these drugs are very expensive, and the targeting is to a specific receptor rather than a specific region.
A magnetically or swim steered drug delivery would be for targeting a specific region/ location in the body, or perhaps to move into areas that are hard or slow to move into with simple diffusion.
I remember giving a presentation on nanotechnology about 7 years ago as a freshman in high school, and this implementation was one of the 'fantasy' use cases I covered. 7 years seems like a lifetime ago, yet so short when discussing the development of world-changing technology like this. It is a truly exciting time we live in.
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Often these drugs are very expensive, and the targeting is to a specific receptor rather than a specific region.
A magnetically or swim steered drug delivery would be for targeting a specific region/ location in the body, or perhaps to move into areas that are hard or slow to move into with simple diffusion.