Nano Letters Vol. 15 No. 10

Artwork featured on the cover of Nano Letters Vol. 15 No. 10. Created for Weiping Wang and the Kohane Lab at Boston Children’s Hospital for their paper "Efficient Triplet–Triplet Annihilation-Based Upconversion for Nanoparticle Phototargeting."

https://pubs.acs.org/doi/10.1021/acs.nanolett.5b01325

The illustration depicts a nanoparticle in the bloodstream being hit with a beam of green light; this initiates a transfer of energy that ultimately causes pegylated ligands to unfold from the core of the nanoparticle and extend from the surface, where they can bind to integrins on the blood vessel wall.