A group of scientists at MIT and Brigham Young Women's Hospital developed a flexible sensor that can be rolled and swallowed. When it is ingested, the sensor adheres to the intestinal or gastric wall, where it measures the frequency of rhythmic contractions in the digestive tract.
This sensor can help doctors diagnose gastrointestinal diseases, can also be used to detect stomach food, help doctors monitor food consumption in obese patients.
Flexible devices are based on piezoelectric materials that generate current and voltage when mechanically deformed. They also integrate elastic polymers similar to human skin, enabling them to adapt to the skin and stretch the skin when stretched.
Research shows that this sensor can live in the stomach of pigs for up to two days. In addition, it offers better safety on tougher absorbers, and researchers have experimented with several experimental tests.
Flexible sensor
Researchers and colleagues create edible equipment that can be used to deliver drugs to the digestive tract or monitor vital signs. To create a more flexible sensor that can provide better safety goals.
Electronic Circuits Silicon Wafers As a first step, the circuit has two electrodes: a gold electrode on the top of the piezoelectric material, the piezoelectric ceramic and the platinum electrode underneath the piezoelectric ceramic. After the circuit is made, it can be removed from the silicon wafer and printed on a flexible polymer called polyimide.
In the experiment, the sensor effectively adhered to the endoscope after implantation. By external cables, the sensor communicates about how much voltage the piezoelectric sensor produces, distinguishing between researchers when the food or liquid intake and how much the stomach wall is moving.
Monitor the movement
This type of sensor makes it easier to diagnose digestive problems and analyze the damage to the digestive tract. It can also be used by doctors to help treat obese patients for food consumption.
In a future version of the device, researchers plan to harvest some of the energy generated by piezoelectric materials to power other functions, including more wireless transmitters and sensors. This kind of device does not need the battery, but also can improve the potential safety of the battery.
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