Georgia Tech researchers have developed a pacifier that may continually monitor a child’s electrolyte ranges in actual time, eliminating the necessity for repeated invasive blood attracts.
RT’s Three Key Takeaways
- Researchers at Georgia Tech have developed a wise pacifier that noninvasively displays newborns’ electrolyte ranges by saliva, eliminating the necessity for frequent blood attracts.
- The gadget encompasses a microfluidic channel that collects saliva and ion-detecting sensors that repeatedly measure sodium and potassium ranges, with real-time information despatched through Bluetooth to medical employees.
- The crew is looking for funding and commercialization companions to convey the expertise to hospitals, with future plans to increase its use for broader noninvasive well being monitoring purposes.
Newborns will need to have their vitals checked often, and one of the crucial essential measures of toddler well being is electrolyte ranges. Proper now, the one option to monitor electrolytes is to attract their blood a number of occasions a day. This may be painful and horrifying for infants, and difficult to carry out for medical employees, who can have bother drawing blood from tiny, underdeveloped blood vessels.
Hong Yeo, affiliate professor and Harris Saunders Jr. Endowed Professor within the George W. Woodruff Faculty of Mechanical Engineering, got here up with the pacifier thought at a pediatric expertise convention. Docs described each day challenges they face in caring for sick newborns, and the shortage of noninvasive monitoring programs.

Hojoong Kim (left), a analysis professor on the WISH Middle and program supervisor of the KIAT-Georgia Tech Semiconductor Electronics Middle, developed particular digital circuits particularly for the pacifier gadget.
Credit score: Christopher McKenney, Georgia Tech.
“Physicians instructed me concerning the blood draw problem, which occurs time and again as infants generally have to remain within the NICU for weeks and even months,” mentioned Yeo, who directs the Wearable Clever Methods and Healthcare Middle (WISH Middle) on the Institute for Matter and Methods.
“I needed to provide you with a noninvasive answer for fixed electrolyte monitoring, and I made a decision to concentrate on one thing infants like: pacifiers. I instantly thought, ‘OK, I can do one thing with that.’”
Yeo bought a number of commercially obtainable pacifiers and began brainstorming potential designs. He realized that if he and his crew might work out how one can gather a child’s saliva with the pacifier, then they might doubtless have the ability to connect versatile membrane sensors utilizing his present miniaturization applied sciences.
The crew constructed a tiny tunnel, or microfluidic channel, into the physique of the pacifier. The opening on the pacifier’s nipple attracts saliva into the channel, which then guides the saliva by the gadget and right into a reservoir geared up with ion-detecting sensors. The sensors react to sodium and potassium ions, continually measuring their ranges.
Hojoong Kim, a analysis professor on the WISH Middle and program supervisor of the KIAT-Georgia Tech Semiconductor Electronics Middle (which Yeo directs), developed particular digital circuits particularly for the pacifier gadget.
“To make the pacifier wi-fi, we designed an ultrathin, membrane-based digital circuit,” Kim mentioned. “We used our expertise to make the circuit extraordinarily skinny and floppy, so it’s versatile and delicate in a approach that it may be mounted to virtually any floor.”
The crew put in their versatile circuit on the again facet of the pacifier. There, they built-in all of the circuit’s wi-fi parts to be suitable with standard Bluetooth. The system sends the info wirelessly, so physicians can use a smartphone or pill to obtain a real-time, steady movement of information a few child’s vitals at any given second.
This fixed information movement paints a fuller image of infants’ well being, and it means severe points could be detected sooner. If any irregular indicators come up throughout monitoring, the system alerts the clinicians or medical employees who’re utilizing the gadget.
In line with Yeo, the crew regularly works to develop and optimize the pacifier expertise. Presently, the crew is looking for funding and commercialization companions that may assist take the expertise to the subsequent degree and into the world.
“As soon as we get it into hospitals, I believe the gadget might be a game-changer for pediatric well being monitoring,” Yeo mentioned. “So far as I do know, that is the one gadget on the earth that may measure a child’s electrolyte concentrations repeatedly.”
The researchers additionally suppose the expertise could be expanded additional to profit extra affected person populations. The idea of utilizing saliva as a noninvasive approach of measuring essential illness biomarkers could be tremendously expanded, Yeo says.
“This is a crucial step in exhibiting that this expertise can work, and that is only the start,” Yeo mentioned. “We hope to combine the expertise with different electrical sensors and programs to attain complete well being monitoring that wasn’t attainable till now.”
Featured picture: Hong Yeo, maintain the monitoring pacifier prototype. Credit score: Christopher McKenney, Georgia Tech.
