A study recently published by Haifeng et al. demonstrated the use of sperms guided by a magnetic source (so called spermbots) to deliver chemical injections to cervical cancer cells. A video of this demonstrations (see below) has been published by New Scientist.
via: New Scientist
The video below by researchers at the Harvard Medical School and Technion–Israel Institute of Technology shows bacteria break zones of ever increasing concentrations of antibiotics hence demonstrates how bacteria becomes “impervious to drugs”. They are able to
In a creative stroke inspired by Hollywood wizardry, scientists from Harvard Medical School and Technion-Israel Institute of Technology have designed a simple way to observe how bacteria move as they become impervious to drugs.