The structure consists of four stacked dye molecules from the perylene bisimide class. "We can specifically trigger the charge transport in this structure with light and have analyzed it in detail.

Editor's Note: Is the Chicago River still green? Take a live look at the river on St. Patrick's Day here. The Chicago River dyeing has taken place, kicking off a weekend of St. Patrick's Day ...

When the FDA announced in January, before President Joe Biden’s term ended, that it would ban a dye called red dye No. 3 in food and ingested drugs, the federal agency cited just one 1987 study ...

An allergic reaction to food dye can be mild or severe. A mild reaction can result in symptoms such as hives, flushing, or itchy skin. A severe reaction can cause swelling of the face or lips ...

Marion Nestle, NYU nutrition professor emerita, told BakeryandSnacks.com on March 13 that PepsiCo’s dye-free Doritos in Europe prove reformulation is possible, but U.S. firms resist because of ...

For those who want to indulge in a green-colored treat, here’s what to know about consuming the food dye during your March 17 celebration. FD&C Green No. 3 — also known as Fast Green FCF ...

Risk of long-term health issues Several studies have raised concerns about the potential link between frequent hair dye use and serious health conditions. Some hair dyes contain carcinogenic ...

(Sarah Silbiger/Getty Images) When the FDA announced in January, before President Joe Biden’s term ended, that it would ban a dye called red dye No. 3 in food and ingested drugs, the federal agency ...

Yellow 5, also known as tartrazine or FD&C yellow #5, is a synthetic yellow food dye suspected of being linked to health problems ranging from allergies to hyperactivity in kids to cancer. It is one ...