APR 17, 2016 7:29 AM PDT

E-Skin: The Stick-On Tattoo of the Future?

WRITTEN BY: Xuan Pham
It looks like a stick-on tattoo of the future, and this laminated version can turn your body into a walking electronic display. Dubbed the “e-skin,” this newest form of wearable technology is ultra-thin and has micro-electronic components that light up in different colors as it is attached to the body. Aside from the unlimited recreational potential of this technology, its developers are first tailoring it for use in diagnostics as oxygen sensors during surgery.
 
E-skin can monitor body's oxygen level
Researchers from University of Tokyo are the masterminds behind this ultra-thin, flexible, and surprisingly durable technology. The film is constructed out of layers of silicon oxynitrite and parylene, to which they’ve embedded polymer light emitting diodes (PLEDs) and Organic Photodetectors (OPDs). These emit a range of colors, including red, blue, and green. Because it’s stretchable and less than 3 millimeters thick, the ‘e-skin’ can be attached to nearly any surface on the body and withstand hundreds of crumples without compromising its integrity. 
 
As each diode corresponds to a pixel when lit, researchers can arrange many diodes together to form complex and meaningful displays. The team envisions one such application to be sensing the levels of oxygen or pulse rate of a patient while in surgery.
 

But wait… isn’t there already a technology for that? Indeed, a pulse oximeter is a small device that hooks on to a patient’s finger for the expressed purpose of reading pulse rate and oxygen status. It’s widely used in hospital setting and is even commercially available for home use.
 
So how is the e-skin innovation any different? The team stresses the e-skin’s wearable feature, which makes it significantly less obtrusive and arguably more reliable. "The device unobtrusively measures the oxygen concentration of blood when laminated on a finger," said Tomoyuki Yokota, first study author. In addition, the electronic skin isn’t limited to any one appendage; rather, it can, theoretically, be attached to pretty much anywhere on the body. "Ultimately, flexible organic optical sensors may be directly laminated on organs to monitor the blood oxygen level during and after surgery," said Yokota.
 
The device also has the advantage of consuming less power and producing less heat. These properties combined with the durability of the film material, significantly increases the longevity of the device.
 
"The advent of mobile phones has changed the way we communicate," said Takao Someya, senior study author. “While these communication tools are getting smaller and smaller, they are still discrete devices that we have to carry with us.” He added, "What would the world be like if we had displays that could adhere to our bodies and even show our emotions or level of stress or unease? In addition to not having to carry a device with us at all times, they might enhance the way we interact with those around us or add a whole new dimension to how we communicate."

Additional sources: Science Daily
About the Author
You May Also Like
SEP 23, 2022
Neuroscience
'The Life of her Mind' Episode 1: Dr. Alice Dreger
SEP 23, 2022
'The Life of her Mind' Episode 1: Dr. Alice Dreger
The Life of Her Mind is a new video series focusing on the lives, perspectives, career pathways, and research of women w ...
SEP 19, 2022
Clinical & Molecular DX
Could Microplastics Disrupt Cellular Processes in Human Lungs and Livers?
SEP 19, 2022
Could Microplastics Disrupt Cellular Processes in Human Lungs and Livers?
Microplastics are tiny pieces of plastic that are shed from the larger pieces of plastic that we use every day. As plast ...
OCT 12, 2022
Health & Medicine
Cavity-Causing Germs Can Form Superorganisms Able to Crawl on Teeth
OCT 12, 2022
Cavity-Causing Germs Can Form Superorganisms Able to Crawl on Teeth
Scientists have found that bacteria and fungi in the human mouth can join forces to form a superorganism that is stronge ...
NOV 05, 2022
Health & Medicine
Autism Study Reveals Widespread Transcriptomic Changes in the Brain
NOV 05, 2022
Autism Study Reveals Widespread Transcriptomic Changes in the Brain
We know of some risk factors for autism spectrum disorder, and like other neuropsychiatric disorders, there is a genetic ...
NOV 11, 2022
Immunology
Regenerating the Immune System to Halt Multiple Sclerosis
NOV 11, 2022
Regenerating the Immune System to Halt Multiple Sclerosis
A bone marrow or blood stem cell transplant has been an effective but risky way to treat multiple sclerosis (MS), and no ...
NOV 16, 2022
Genetics & Genomics
Genes That Diagnose Lyme Disease are Identified
NOV 16, 2022
Genes That Diagnose Lyme Disease are Identified
Lyme disease is caused by a bacterium that is transmitted by tick bites. The incidence of Lyme disease has been increasi ...
Loading Comments...