The futuristic idea that microchips could be implanted under a patient’s skin to control the release of drugs has taken another step forward. US scientists have been testing just such a device on women with the bone-wasting disease osteoporosis. The chip was inserted in their waist and activated by remote control. A clinical trial, reported in Science Translational Medicine, showed the chip could administer the correct doses and that there were no side effects. The innovation has also been discussed here at the annual meeting of the American Association for the Advancement of Science (AAAS). One of the designers, Prof Robert Langer from the Massachusetts Institute of Technology (MIT), claimed the programmable nature of the device opened up fascinating new avenues for medicine.   –BBC