Cellular Kung-Fu Grip

News brief

1 min read

Researchers at Johns Hopkins University have developed 700â¿¿micrometer metallic grippers that can be remotely triggered to clench. The microgrippers, which can be maneuvered into place using magnets, could be useful for removing cells for biopsy or other medical applications. Inspired by the joints of crabs, the scientists built their microgrippers using a layer of prestressed metal that is held open by segments of organic polymer. Increasing the temperature or adding certain chemicals softens the polymer and releases the tension in the metal.

This article is for IEEE members only. Join IEEE to access our full archive.

Join the world’s largest professional organization devoted to engineering and applied sciences and get access to all of Spectrum’s articles, podcasts, and special reports. Learn more →

If you're already an IEEE member, please sign in to continue reading.

Membership includes:

  • Get unlimited access to IEEE Spectrum content
  • Follow your favorite topics to create a personalized feed of IEEE Spectrum content
  • Save Spectrum articles to read later
  • Network with other technology professionals
  • Establish a professional profile
  • Create a group to share and collaborate on projects
  • Discover IEEE events and activities
  • Join and participate in discussions