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Imaging

Chemistry In Pictures

Chemistry in Pictures: Shining better together

by Manny Morone
December 4, 2018
Advertisement

Most Popular in Analytical Chemistry

Rhombus-shape crystals of an anthracene derivative spread out around the bottom of a round-bottom flask fluoresce bright turquoise.
Credit: Yujie Tu

Before Yujie Tu crystallized this anthracene derivative, it hardly glowed at all. In the closely packed structure of the crystals, the molecules clumped together, locking down squirmy parts of the molecules that would otherwise absorb light and thus prevent fluorescence. Tu studies this phenomenon, called aggregate-induced emission, as part of his PhD work at Hong Kong University of Science and Technology. Finding organic molecules that glow when they clump together is useful in biological imaging because organic fluorescent molecules are often hydrophobic and tend to form aggregates in the watery environments inside cells.

Submitted by Yujie Tu

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

Related C&EN Content:

Chemistry in Pictures: Water it down, turn it up

Light-emitting metallacycles put themselves together

Chemistry in Pictures: Aurora borealis.

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

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