Skip to main content

MIT and Harvard's biosensing tattoos will change color when you're dehydrated

MIT researchers develop tattoo inks that could act as health trackers
Tattoos can make for interesting skin decoration, but could they also be made to act like wearable devices that offer up health-related or other biometric insights through the use of biosensing ink? A new project called the Dermal Abyss certainly believes so — and it’s got the proof of concept to back it up.

A collaboration between Massachusetts Institute of Technology researchers Katia Vega, Xin Liu, Viirj Kan and Nick Barry and Harvard Medical School researchers Ali Yetisen and Nan Jiang, the Dermal Abyss demonstrates the enormous potential of culturally and medically integrated biosensing tattoos, which change color to signal changes in the body’s metabolism. Part tech demo and part philosophical inquiry, the work raises questions like whether we might be willing to publicly display protected health information in exchange for easier access to knowledge of our own bodies.

“The utilization of tattooed biosensors can provide measurements of biomolecules for continuous monitoring,” Vega told Digital Trends “We replace traditional inks with biosensors that colorimetrically index the concentration of sodium, glucose, and H+ ions (pH) in the interstitial fluid of the skin: the pH sensor changes between purple and pink and the glucose sensor between blue and brown; the sodium and a second pH sensor fluoresce at a higher intensity under UV light. Some examples would be for diabetes, dehydration or controlling a pH levels. This work shows the potential of tattooing biosensors in the skin for applications in medical diagnostics, quantified self, and data encoding in the body.”

At present, the biosensing inks have been limited to tests on pig skin, although Vega says that response from the general public has been extremely favorable — suggesting that there is a definite market here, should someone be willing to capitalize on it.

“We are glad to have a positive response from the public to this project,” she said. “In the same way that the wearables industry is integrating fashion practices in their development, we envision new partnerships between the biotech companies and skin professionals such as prosthesis experts and tattooists in order to embrace the idea of human-device symbiosis. The purpose of the work is to highlight a novel possibility for biosensors rather than bring a medical device to market. As such, there are currently no plans to develop The Dermal Abyss as a product or to pursue clinical trials.”

Editors' Recommendations

Luke Dormehl
I'm a UK-based tech writer covering Cool Tech at Digital Trends. I've also written for Fast Company, Wired, the Guardian…
Your A.I. smart assistant could one day tell if you’re lonely
roku ultra vs amazon fire tv nvidia shield apple siri

Your A.I. assistant can do plenty of things for you, whether that’s answering questions, cuing up the perfect song at the right time, making restaurant bookings, or many other tasks. Could it also work out whether you’re lonely?

“Emotion-sniffing” technology is a growing area of interest among researchers, but it’s still in its infancy. In a new proof-of-concept study, researchers from the University of California San Diego School of Medicine recently showed how speech-analyzing A.I. tools can be used for predicting loneliness in older adults.

Read more
Too much, too little? Oral-B’s iO toothbrush knows if you’re brushing just right
oral b series 7 toothbrush brings dentist level clean to you io

Nothing starts the day off right quite like a clean mouth. While a normal toothbrush can do a fine job of cleaning your teeth, it doesn’t compare to the cleaning power of a smart electric toothbrush. The Oral-B iO 7 Series is a brand-new offering from Oral-B that is the result of six years of research with dental professionals. It knows if you're applying too much pressure while brushing.

The iO series first debuted at CES 2020 where it won a number of different awards, including the “Best of” awards from Good Housekeeping, Women’s Health, and several others. It also led to Oral-B being named one of 2020’s CES Innovation Award Honorees. It is the latest entry in the world of smart toothbrushes, with innovations that make it one of the most comprehensive offerings on the market.

Read more
A.I. can tell if you’re a good surgeon just by scanning your brain
brain with computer text scrolling artificial intelligence

Could a brain scan be the best way to tell a top-notch surgeon? Well, kind of. Researchers at Rensselaer Polytechnic Institute and the University at Buffalo have developed Brain-NET, a deep learning A.I. tool that can accurately predict a surgeon’s certification scores based on their neuroimaging data.

This certification score, known as the Fundamentals of Laparoscopic Surgery program (FLS), is currently calculated manually using a formula that is extremely time and labor-consuming. The idea behind it is to give an objective assessment of surgical skills, thereby demonstrating effective training.

Read more