Electric Eel, Electrophorus electricus, Venezuela. Photo: Reinhard Dirscherl / ullstein bild / Getty Images

Researchers are trying to find a safe, non-toxic way to power electric implants like pacemakers by looking at electric eels, according to Nature. Why it matters: If the prototype can be successfully developed, it could be safer for the body because it wouldn't be as potentially toxic as traditional batteries, and could eventually run on bodily fluids, per Nature. It's also flexible, transparent, and runs on a solution of salt and water.How it works: The fish (which are not true eels) have specialized cells electrocytes all along the length of their bodies. They change the electrocyte's conductivity varying the salt and mineral concentrations in the cells. This causes the cells to create a flow of charge-carrying ions, producing electricity. Each cell only produces a small charge, but stacked together they can produce up to 600 volts of electricity to locate and stun prey.

Thomas Schroeder, a chemical engineer at the University of Michigan, and his team made similar models of electrocytes using four different hydrogels made of polyacrylamide and water. They combined 2,500 units to produce 110 volts -- enough to potentially power "ultra-low-power devices, including some cardiac pacemakers," per Nature.

Go deeper

Quibi says it's shutting down

Photo: Igor Golovniov/SOPA Images/LightRocket via Getty Images

Quibi, the mobile-only video subscription streaming service, is shutting down, the company announced Wednesday. The company said the decision was made to preserve shareholder equity.

Why it matters: Quibi had struggled to hit its subscriber growth targets amid the global pandemic. The app launched six months ago.

Updated 1 hour ago - Politics & Policy

Coronavirus dashboard

Illustration: Aïda Amer/Axios

  1. Politics: Senate Democrats block vote on McConnell's targeted COVID relief bill McConnell urges White House not to strike stimulus deal before election.
  2. Economy: Why the stimulus delay isn't a crisis (yet).
  3. Health: New York reports most COVID cases since MayStudies show drop in coronavirus death rate — The next wave is gaining steam.
  4. Education: Schools haven't become hotspots — San Francisco public schools likely won't reopen before the end of the year.
  5. World: Spain becomes first nation in Western Europe to exceed 1 million cases.
3 hours ago - Podcasts

House antitrust chair talks USA vs. Google

The Justice Department filed a 63-page antitrust lawsuit against Google related to the tech giant's search and advertising business. This comes just weeks after the House subcommittee on antitrust issued its own scathing report on Google and other Big Tech companies, arguing they've become digital monopolies.

Axios Re:Cap talks with Rep. David Cicilline (D-R.I.), chair of the subcommittee on antitrust, about Google, the DOJ's lawsuit and Congress' next move.