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Keywords:

  • analytical methods;
  • bioactive paper;
  • blood typing;
  • diagnostics
Thumbnail image of graphical abstract

A response in writing: A low-cost bioactive paper device is designed to perform ABO and RhD blood typing tests, and the paper reports the results in writing. This idea was inspired by the vision of the British author, J. K. Rowling, through her novel “Harry Potter and the Chamber of Secrets” in which a piece of paper could be interrogated for information and unambiguous answers were received from the paper in writing.