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posted by mattie_p on Saturday February 22 2014, @10:28AM   Printer-friendly
from the quantum-is-the-new-black dept.

amblivious writes:

"A team from the University of Queensland has demonstrated quantum imaging inside living cells for the first time. They were able to map structures within cells at scales as fine as 10nm, offering a 14% resolution enhancement over coherent light. Conventional optical imaging is limited by diffraction but by generating the photons with a more consistent phase as squeezed light the amount of diffraction can be minimized.

The ability to map living cells at this scale represents a significant breakthrough in imaging. These methods promise to reveal important new levels of cellular complexity and deliver profound benefits to biotech and medical research, and 'confirm the longstanding prediction that quantum correlated light can enhance spatial resolution at the nanoscale and in biology.'"

 
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  • (Score: 3, Interesting) by bd on Saturday February 22 2014, @07:30PM

    by bd (2773) on Saturday February 22 2014, @07:30PM (#4923)

    Well, you are probably correct. Replace "whole cell" with "region of interest".

    I was actually also wrong about them being only able to scan the particle along a line.

    One problem with their technology demonstrator right now is that they only know the position of their particle in the x direction. The y and z directions are actually random. This means that their particle took a different, unknown trajectory through the cell for each \alpha-scan.

    To conclusively demonstrate their resolution enhancements by showing a detailed picture of something, they now have to build a proper 3D-PFM. I guess they just wanted to publish something before someone else does.

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  • (Score: 1) by NovelUserName on Saturday February 22 2014, @09:15PM

    by NovelUserName (768) on Saturday February 22 2014, @09:15PM (#4956)

    I'm nowhere near an expert in the field, but it sounded like the random motion was utilized as a feature (or at least they could derive useful info from it). Basically their apparatus could detect the motion and use that to identify the mechanical properties of the environs.

    • (Score: 1) by bd on Saturday February 22 2014, @10:32PM

      by bd (2773) on Saturday February 22 2014, @10:32PM (#4985)

      They only tracked the particle in the x direction in their coordinate system, not y or z.