Smart Pill Reports Back

Researchers at the University of Florida have engineered a smart pill with a tiny antenna and microchip that could signal when it has made it into a patient's stomach--reporting to a cell phone or computer that she has taken her medicine. Their design is the latest of several high-tech pill-reporting efforts to improve patient adherence and provide accurate reporting.

The prototype pill is composed of a standard pill capsule, wrapped in a thin label etched in silver nano-ink, comprising an antenna. The team also outfitted the label with a tiny microchip, which can be loaded with sensors to detect measurements like body temperature or pH levels. Both the antenna and microchip communicate with an external transmitter, which researchers say could be fashioned into a wearable device such as a wristband. The transmitter sends low frequency pulses into the body; the pill's antenna tunes into the transmitter's specific frequency, and sends pulses back, along with data collected from the microchip, potentially including the time when the patient ingested the pill, and the type of pill taken.

Source: technologyreview.comAdded: 28 April 2010