Carbon nanotubes can be used in a variety of different contexts. Most recently, tubes were filled with drugs and sealed with biodegradable caps, allowing them to work inside cells, where they delivered their loads. There has been some concern that these nanotubes might not target the drugs well enough, which is why researchers at the University of Rochester in New York State have come up with exploding carbon nanotubes.
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Researchers have announced that a wirelessly-programmed implant, which has been successfully tested in human trials, could save patients the pain of daily injections.
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Researchers have been designing a wide variety of self-propelled micromotors, many which operate using an oxygen-bubble propulsion mechanism that requires a high concentration of hydrogen peroxide as fuel, which in turn is hazardous at high concentrations, hindering its usefulness in biomedical applications. In a new study, scientists have created a new type of micromotor that can propel itself through acidic environments using only hydrogen bubbles. At low pH levels, the micromotors can travel at speeds of up to 100 body lengths per second, prompting the colloquial use of microrockets to designate these devices.
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