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Synthesis

Chemistry In Pictures

Chemistry in Pictures: Rhodamine rose

by Craig Bettenhausen
July 14, 2023
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Most Popular in Synthesis

A rose sits in an erlinymer that glows yellow. The yellow glow extends into the veins of the flower petal.
Credit: Submitted by Rachel Weiss Clark

Rachel Weiss Clark’s graduate school research on luminescent materials put her in a position to crank up this classic science fair experiment up a notch. If the water in a vase holding roses or carnations has dye in it, the flower will take up the dye along with the water, bringing new color into the flower’s petals. Food coloring or highlighter ink are the normal choices, but Clark had an inkling she could do better with some of the dyes she works with in Lea Nienhaus’s Florida State University lab. She settled on rhodamine 610 because of its high solubility in water, and fed a solution of the dye compound to a white rose. This UV-illuminated photos shows the stunning results.

Submitted by Rachel Weiss Clark

Do science. Take pictures. Win money. Enter our photo contest here.

Click here to see more Chemistry in Pictures.

Chemical & Engineering News
ISSN 0009-2347
Copyright © 2024 American Chemical Society

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