A pill inflating up to the size of a ping pong when swallowed can oversee the stomach cancers and ulcers and spots in places, scientists say.
The American tracker – inspired by pufferfish that raises the body if it threatens – is stuck in the stomach and can work for up to a month.
The "pill pill" is made of two types of heligel as helicoid material, which allows it to resist the effects of stomach and acid digestive juices.
In laboratory tests, it was thrown into various water-reservoir-like gastric juices, and mechanically clamped to simulate "grinding" stomach contractions
Lead researcher, Dr. Xuanhe Zhao of the Massachusetts Institute of Technology in the United States, said: "The dream is to have a smart pill as it is swallowed, which once swallowed remains in the stomach and oversees the patient's health for a long time, such as are a month. "
Researchers, whose work has been published in Nature Communications, predict tablets of tablets that can bring many different sensors to the stomach.
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These can monitor levels of acidity or look for signs of certain bacteria or viruses.
Small cameras can even be installed in pills to write the progress of tumors or ulcers.
Another application can be a safer and more convenient alternative to gastric balloons, which are used to suppress excessive nutrition and to manage weight gain, scientists say.