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There are three types of medical micromotors scientists hope can carry out these functions: chemical, physical, and biohybrid.

How they're different:

  • Chemical micromotors react to the liquids around them by using platinum or silver as a catalyst.
  • Physical micromotors manifest as a magnetic helix that act like cargo mules for the body and could perform biopsies or microsurgeries.
  • Biohybrid micromotors are bacteria-driven — they follow bacteria and can be controlled through an external force (think: magnetism) to control and move things around in the body.

Why it matters: "With a coordinated push, microbots could usher in an era of non-invasive therapies within a decade," said Mariana Medina-Sánchez and Oliver G. Schmidt, the researchers behind the essay. Furthermore, the emergence of medical micromotors could revolutionize the types of medicines able to be administered throughout the body, as well as give surgical access to people in more rural areas.

The challenges:

  • Most are currently fueled by toxic chemicals like hydrogen peroxide.
  • Navigating the human body - this is more difficult than making it around a Petri dish.
  • Safety - researchers will have to demonstrate microbots can be removed or breakdown in the body.

Go deeper

Ina Fried, author of Login
16 mins ago - Economy & Business

The pandemic isn't slowing tech

Illustration: Eniola Odetunde/Axios

Thursday's deluge of Big Tech earnings reports showed one thing pretty clearly: COVID-19 may be bad in all sorts of ways, but it's not slowing down the largest tech companies. If anything, it's helping some companies, like Amazon and Apple.

Yes, but: With the pandemic once again worsening in the U.S. and Europe, it's not clear how long the tech industry's winning streak can last.

Texas early voting surpasses 2016's total turnout

Early voting in Austin earlier this month. Photo: Sergio Flores/Getty Images

Texas' early and mail-in voting totals for the 2020 election have surpassed the state's total voter turnout in 2016, with 9,009,850 ballots already cast compared to 8,969,226 in the last presidential cycle.

Why it matters: The state's 38 Electoral College votes are in play — and could deliver a knockout blow for Joe Biden over President Trump — despite the fact that it hasn't backed a Democrat for president since 1976.

Wall Street braces for more turbulence ahead of Election Day

Illustration: Eniola Odetunde/Axios

Wall Street is digging in for a potentially rocky period as Election Day gets closer.

Why it matters: Investors are facing a "three-headed monster," Brian Belski, chief investment strategist at BMO Capital Markets, tells Axios — a worsening pandemic, an economic stimulus package in limbo, and an imminent election.

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