Parents will soon be able to change a baby’s diaper before the crying begins. A “smart diaper” has been created by Penn State University researchers; it is a diaper with an integrated sensor that, when wet, alerts a phone.
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A small lithium battery is attached to the diaper, which is made of paper that has been pre-treated with sodium chloride (salt) and has the outline of a circuit board drawn on it.
According to a study published in the journal Nano Letters, researchers implanted four sensors between the layers of a diaper to create the “smart diaper.”
The reaction between the liquid and sodium chloride when the diaper is wet causes electrons to flow to the graphite, activating a sensor.
The sensor will call someone to let them know when the baby’s diaper needs to be changed.
Even better, it can let parents know how wet the diaper is, which may help them decide whether to change the baby’s diaper right away.
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Dr. Huanyu Cheng, a father of two young children and the main author, stated: “That application was actually formed out of the personal experience.” Parents may benefit greatly from knowing that information because it can be challenging to determine how wet is wet.
The sensor can be used to detect life-threatening medical conditions like pneumonia or cardiac arrest in nursing homes or hospitals.
The sensor, according to Huanyu, “can provide data to alert for diaper changes, but also in the long term, to indicate patterns that can advise parents about their child’s general health.”
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The apparatus could distinguish between three breathing patterns: deep, regular, and rapid. Researchers also put it through testing while donning a face mask. It’s possible that using this information will make it easier to spot the start of a heart attack or when someone stops breathing.
In addition to detecting the presence or absence of a finger, it can be utilized as a non-contact switch component to detect changes in air humidity.