Assembling of dense fluorescent supramolecular webs via self-propelled star-shaped aggregates.
We report a novel mechanism of assembly of dendronized rod molecules into a dense supramolecular fluorescencent web featuring self-propelled mechanistic inward motion of star-shaped aggregates within a solution droplet. We suggest that such a motion (observed in real time) is caused by the self-repulsion of the growing star-shaped nuclei from the liquid-solid-air interface in the course of one-dimensional growth of the anchored arms. An intriguing mechanism discovered here involves microscopic (hundred micrometers) directional motion of the microscopic aggregates driven by one-dimensional molecular assembly, which opens a new venue for guided assembly of dense mesoscopic supramolecular webs. Such assemblies can serve as interesting microfluidic networks, a web of optical switches, and model systems for studying intercellular communication.
Genson
Kirsten L
KL
Department of Materials Science and Engineering, Iowa State University, Ames, 50010, USA.
Holzmueller
Jason
J
Ornatska
Maryna
M
Yoo
Yong-Sik
YS
Par
Myoung-Hwan
MH
Lee
Myongsoo
M
Tsukruk
Vladimir V
VV