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Keywords:

  • brain chemistry;
  • colorimetry;
  • glucose;
  • gold;
  • nanoparticles
Thumbnail image of graphical abstract

A gold-based assay: By taking advantage of the unique optical properties of gold nanoparticles (AuNPs) and the cascade reactions of glucose, a simple but effective method has been successfully developed for the direct colorimetric visualization of glucose in the rat brain. GOD=glucose oxidase.