New diapers can notify parents that the baby wet them

Researchers have developed a smart diaper with a built-in humidity sensor that can send notifications to a smartphone or computer when it gets wet.

While some children react violently towet diaper, others don’t pay attention to it for a long time. However, carrying a wet load for long periods of time can lead to painful rashes and inflammation. Now researchers from the Massachusetts Institute of Technology have proposed an innovative solution to this problem.

The team equipped the diaper with a sensor thatresponds to increased humidity, andalso a passive radio frequency identification (RFID) tag located under a layer of absorbing polymer. When a diaper gets wet, the material between them swells and becomes a weak conductor, which is enough to send a radio signal to a reader within a 1 meter radius, which in turn can send a notification to a smartphone or computer.

According to the developers, the cost of the sensorless than two cents, and the radius of its action can be increased due to the amount of copper in the device. Such a diaper is universal and can be used not only for infants, but also for the elderly or bedridden patients.

Recently, researchers also developed an application that detects signs of eye disease from photos before doctors do.

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