Professor Shen said the research was inspired by the film adaptation of J.K. Rowling’s novel Harry Potter and the Chamber of Secrets.
“In the film Harry Potter interrogates Tom Riddles’ diary by writing on a page of paper in the Diary “Do you know anything about the Chamber of Secrets?”; and the paper responded with a “Yes” in writing,” Professor Shen said.
“The artist’s vision showed us that non-conventional mechanisms for reporting results using paper-based sensors should be explored.
“And now we have been able to create that same unambiguous response with a blood test.”
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