ElectricBrian writes "Researchers have found a way to propel micro-capsules by attaching bacteria (S. marcescens, the type that makes your shower curtain moldy). Scientists at Carnegie Mellon University fixed the bacteria to the micro-capsules and then used chemicals to turn on and off their motion-producing flagella. Quoting: 'In the future, such hybrid swimming micro-robots could even be used to deliver ****s inside the liquid environments of the human body, such as the urinary tract, eyeball cavity, ear, and cerebrospinal fluid...'"
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