A blood-typing test credited to Harry Potter, sort of

A new study credits the author of the Harry Potter books for inspiring a biomedical innovation: “Paper-Based Blood Typing Device That Reports Patient’s Blood Type ‘in Writing’“, Miaosi Li, Junfei Tian, Mohammad Al-Tamimi, Wei Shen, Angewandte Chemie International Edition, epub April 18, 2012. The authors, at Monash University, explain: “A low-cost bioactive paper device is designed […]

Ink vs. blood

This chart, from the reflectionofme web site, shows the relative prices of several liquids. Ink for an HP computer printer is notably more expensive than the other listed liquids. But it was still, when the chart was prepared, less than twice the price of blood (the latter, of course, is subject to fluctuation). (Thanks to […]

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