Rod-Like Nanoparticles with Striped and Helical Topography
MALHO, Jani-Markus
Department of Applied Physics [Aalto]
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 3 LCPO : Polymer Self-Assembly & Life Sciences
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Department of Applied Physics [Aalto]
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 3 LCPO : Polymer Self-Assembly & Life Sciences
MALHO, Jani-Markus
Department of Applied Physics [Aalto]
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 3 LCPO : Polymer Self-Assembly & Life Sciences
Department of Applied Physics [Aalto]
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 3 LCPO : Polymer Self-Assembly & Life Sciences
GRÖSCHEL, André H.
Physical Chemistry and Center for Nanointegration (CENIDE)
Department of Applied Physics [Aalto]
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Physical Chemistry and Center for Nanointegration (CENIDE)
Department of Applied Physics [Aalto]
Langue
en
Article de revue
Ce document a été publié dans
ACS Macro Letters. 2016, vol. 5, n° 10, p. 1185-1190
Washington, D.C : American Chemical Society
Résumé en anglais
The behavior of nanoparticles in solution is largely dominated by their shape and interaction potential. Despite considerable progress in the preparation of patchy and compartmentalized particles, access to nanoparticles ...Lire la suite >
The behavior of nanoparticles in solution is largely dominated by their shape and interaction potential. Despite considerable progress in the preparation of patchy and compartmentalized particles, access to nanoparticles with complex surface patterns and topographies remains limited. Here, we show that polyanionic brushes tethered to rod-like cellulose nanocrystals (CNCs) spontaneously develop a striped or helical topography through interpolyelectrolyte complexation with polycationic diblock copolymers. Using cryogenic transmission electron microscopy (cryo-TEM) and tomography (cryo-ET), we follow the complexation process and analyze the delicate 3D topography on the CNC surface. The described approach is facile and modular and can be extended to other block chemistries, nanoparticles, and surfaces, thereby providing a versatile platform toward surface-patterned particles with complex topographies and spatially arranged functional groups.< Réduire
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