ERROR 1
ERROR 1
ERROR 2
ERROR 2
ERROR 2
ERROR 2
ERROR 2
Password and Confirm password must match.
If you have an ACS member number, please enter it here so we can link this account to your membership. (optional)
ERROR 2
ACS values your privacy. By submitting your information, you are gaining access to C&EN and subscribing to our weekly newsletter. We use the information you provide to make your reading experience better, and we will never sell your data to third party members.
These photos show two different forms—amorphous and crystalline—of a naphthalimide dye in a single vial from two angles. In the side view (top, left), amorphous nanosized aggregates of the dye appear as a greenish-yellow cloud, while the blue-green, bladelike crystals are most visible in the top-down view (top, right). The nanoaggregates have an emission maximum at about 540 nm (bottom, left), and the crystals have a maximum around 500 nm (bottom, right). João Avó, a postdoc at the Instituto Superior Técnico, designed the dye for a research project for which he is the principal investigator. His aim is to create systems that exhibit thermally activated delayed fluorescence in aqueous media for use in optical time-resolved imaging in live cell cultures. He’s encouraged by the ability of this particular dye and its analogs to display strong emission in the aggregate state.
Submitted by João Avó (@JoaoMAvo)
Do science. Take pictures. Win money. Enter our photo contest here.
Join the conversation
Contact the reporter
Submit a Letter to the Editor for publication
Engage with us on X