Glow Scope

Why in News?

  • Recently Researchers at Winona State University, Minnesota, have created a design for a Glow Scope, a Fluorescence Microscope.


  • With this setup, they were able to image the creatures’ brain, spinal cord, heart, and head and jaw bones.
  • They were able to zoom in and out using the smartphone camera and the clip-on lens.
  • An optical microscope views an object by studying how it absorbs, reflects or scatters visible light.
  • A fluorescent microscope views an object by studying how it reemits light that it has absorbed, i.e., how it fluoresces. This is its basic principle.
  • The object is illuminated with light of a specific wavelength.
  • Particles in the object absorb this light and reemit it at a higher wavelength.
  • These particles are called fluorophores; the object is infused with them before being placed under the microscope.
  • Using a ‘glowscope’ still requires access to fluorophores, suitable biological samples, the know-how to combine the two, and some knowledge of physics to work out which LED flashlight to buy.
  • The Foldscope was truly remarkable because all its required components were simple to understand.
  • In 2014, a group of scientists at Stanford University released Foldscope, a handheld microscope made almost entirely out of paper, which takes 30 minutes to put together, and which could capture images of cells.
  • However, the fact that a simple fluorescent microscope can be set up for a few thousand rupees means, instead of being entirely out of reach, researchers can prepare samples and take them to schools, where students can observe them.
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