Somewhere between 20 and 30 percent of supposedly decaffeinated coffee and tea is actually fairly high in caffeine, but a new test kit can help people tell the difference. A strip of paper soaks up fluid from a sample, and antibodies in the strip produce colored lines if the sample contains caffeine. The antibodies were designed by the test’s manufacturer, Silver Lake Research, which also has antibody tests for contaminants in food sources and water.
Credit: Joshua Scott
Product: D+caf Test Strip
Cost: $9.95 for a package of 20 strips
Company: Silver Lake Research
Other products in this section:
Subscribe to Continue Reading
Uh oh–you've read all five of your free articles for this month.
$179.95/yr US PRICE
First Magnetic Resonance Microscope Has Human Biochemistry in Its Sights
With a sensor made from diamond, the new microscope can study biochemical processes in unprecedented detail.
Patent Office Hands Win in CRISPR Battle to Broad Institute
The dispute between researchers at UC Berkeley and the Broad Institute over the invention of the powerful gene-editing technique has been decided.
Companies Plan Tests of “Optogenetic Goggles” to Restore Sight
The visor-like devices need to be combined with gene therapy to work.