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Researchers Magnetically Control Nanoparticles Inside Cells

Scientists have figured out a way to make tiny magnetic particles that they can watch and manipulate inside the body. 

An international team of researchers built nanoparticles whose core is made of magnetic materials encapsulated in a uniform fluorescent coating.  The breakthrough means that researchers can watch the movement of the particles inside an individual cell and move them around that cell by applying a magnetic field. 

See the video below.

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Txch This Week: Autonomous Trains And “Magic Wand” Technology

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by Jared Kershner

We dedicated much of this week on Txchnologist to Nobel Prize announcements for the world’s most groundbreaking discoveries in physics, chemistry and physiology or medicine. We witnessed three neuroscientists be honored for uncovering how the brain understands where the body is in space. John O’Keefe, May-Britt Moser and Edvard Moser revealed the positioning system or “inner GPS” in the brain that makes it possible to orient ourselves and remember places we’ve been.

The physics Nobel recognized the revolution in artificial lighting ushered in by LEDs. The three winners this year allowed white light to be created in a new way by figuring out how to produce blue-light LEDs, creating longer-lasting and more efficient alternatives to older light sources. Their discovery is bound to impact global energy demand and improve the lives of billions living in poverty with no access to electricity beyond unhealthy light sources such as burning kerosene. 

Outside of the Nobel frenzy, NASA plans on a December launch for the Orion capsule on its first space flight aboard the Delta IV Heavy rocket. This vehicle – expected one day to carry astronauts as far as Mars – will perform its first mission unmanned as a test flight for fact-finding on how it will safely convey astronauts in future explorations.

Now we’re bringing you the news and trends we’ve been following this week in the world of science, technology and innovation.

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Discovering The Brain’s GPS Earns Three A Nobel
Three neuroscientists who uncovered how the brain understands where the body is in space have won the Nobel Prize in Physiology or Medicine, judges announced today.

Discovering The Brain’s GPS Earns Three A Nobel

Three neuroscientists who uncovered how the brain understands where the body is in space have won the Nobel Prize in Physiology or Medicine, judges announced today.

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Discovering The Brain’s GPS Earns Three A Nobel

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by Michael Keller

Three neuroscientists who uncovered how the brain understands where the body is in space have won the Nobel Prize in Physiology or Medicine, judges announced today. 

"How do we know where we are? How can we find the way from one place to another?" wrote the Nobel Assembly in making the announcement. “This year´s Nobel Laureates have discovered a positioning system, an ‘inner GPS’ in the brain that makes it possible to orient ourselves.”

Half of the prize went to John O’Keefe, an American and British citizen who is now the head of University College London’s Sainsbury Wellcome Center in Neural Circuits and Behavior. In 1971, O’Keefe found that certain neurons in a rat’s brain activated when the animal was in one location. When it moved somewhere else, other cells lit up. O’Keefe proposed that this activity engendered a sense of place and develop into a map of the external world. Furthermore, the collection of different “place cell” activations for a particular environment could be saved to remember a particular place later.

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