You could soon charge your phone with your blood
Researchers have found a way to use power generators inside the bloodstream to harness electricity. Image: REUTERS/Dado Ruvic
Get involved with our crowdsourced digital platform to deliver impact at scale
Stay up to date:
Fourth Industrial Revolution
In brief
Researchers from Fudan University in China have developed a way to harness electricity from your bloodstream. The process involves nanpscale carbon fibers and could lead to self-powered medical devices.
Inner space hydropower
It’s a truly modern experience: losing battery power on your mobile device and searching desperately for a source of electricity. But what if that source was flowing through your veins? A team of researchers are looking to harness that power from within our own bodies, using power generators inside the bloodstream.
The team from Fudan University in China has developed a lightweight power generator that can convert flowing blood in vessels into power. This is made possible by a fiber made of carbon nanotubes, which are electroactive. In tests, this thread of fibers, called a “fiber-shaped fluidic nanogenerator” (FFNG), is attached to electrodes and immersed in a solution to imitate the bloodstream. According to the researchers, “The electricity was derived from the relative movement between the FFNG and the solution.”
The researchers were inspired by the concept behind hydropower, which uses flowing water or steam to turn a turbine and generate electricity. Like hydropower, blood-based electricity would be a source of renewable electricity not dependent on the weather, as solar and wind energy are.
Blood power
The researchers stated that their method was able to harness twenty percent of the energy generated from a test with a saline solution, a far more efficient result than previous models.
The mechanical properties of the material will potentially allow it to have some interesting applications. For one, this could turn into an easy way to generate power for internal medical devices, like pacemakers. Additionally, according to the press release, “Other advantages are elasticity, tunability, lightweight, and one-dimensionality,” which could allow the material to be woven into fabrics, allowing you to power wearable devices using yourself as an energy source.
The device also has the upside of being stationary; proposed energy generators that floated in the blood raised concerns that they could lead to blood clots.
It’s understandable to question how much power could feasibly be generated by this technology when working with materials at this scale; so far, the method has only been successfully tested in a living body by using frog’s nerves. There will also have to be much more testing and a battery of regulatory approval before we could see this technology in use with humans. Still, even the medical applications alone leave plenty to be excited about. This single innovation could majorly revolutionize medicine and, more broadly, the way we generate and utilize energy.
Don't miss any update on this topic
Create a free account and access your personalized content collection with our latest publications and analyses.
License and Republishing
World Economic Forum articles may be republished in accordance with the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Public License, and in accordance with our Terms of Use.
The views expressed in this article are those of the author alone and not the World Economic Forum.
Related topics:
The Agenda Weekly
A weekly update of the most important issues driving the global agenda
You can unsubscribe at any time using the link in our emails. For more details, review our privacy policy.
More on Fourth Industrial RevolutionSee all
Jacqueline Lu and Jeff Merritt
October 15, 2024
Karla Yee Amezaga, Rafi Lazerson and Manal Siddiqui
October 11, 2024