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individual fluorescent molecules
    
  Appears In
      
      Avoiding the Crack of DoomSuper-resolution optical microscopy
      
            In this image, 200 nanometers (nm, billionths of a meter) square image, the size and direction of the arrows show the average local alignment of individual fluorescent molecules as a result of the strain produced by a square punch (the size of the gray dotted line) driven into the material, and then pulled out at an angle towards the top of the image.

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                                NIST

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