Assembling of Dense Fluorescent Supramolecular Webs via Self-Propelled Star-Shaped Aggregates

Autor:	Maryna Ornatska, Myoung-Hwan Par, Jason Holzmueller, Myongsoo Lee, Vladimir V. Tsukruk, Yong-Sik Yoo, Kirsten L. Genson
Rok vydání:	2006
Předmět:	Mesoscopic physics Chemistry Mechanical Engineering Microfluidics Supramolecular chemistry General Materials Science Bioengineering Nanotechnology General Chemistry Star (graph theory) Condensed Matter Physics Fluorescence
Zdroj:	Nano Letters. 6:435-440
ISSN:	1530-6992 1530-6984
DOI:	10.1021/nl052301i
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::99975eb3af7107b07a596a10ad903416 https://doi.org/10.1021/nl052301i Zobrazit plný text záznamu