Hierarchical supercrystalline nanocomposites through the self-assembly of organically-modified ceramic nanoparticles

Saved in:

Published in:	Scientific reports Vol. 9. 2019; Article number 3435; insgesammt 11 Seiten
Authors and Corporations:	Domènech Garcia, Berta (Author), Kampferbeck, Michael (Author), Larsson, Emanuel (Author), Krekeler, Tobias (Author), Bor, Büsra (Author), Giuntini, Diletta (Author), Blankenburg, Malte (Author), Ritter, Martin (Author), Müller, Martin (Author), Vossmeyer, Tobias (Author), Weller, Horst (Author), Schneider, Gerold A. (Author), Technische Universität Hamburg (Other, Sonstige Körperschaft), Technische Universität Hamburg Institut für Keramische Hochleistungswerkstoffe (Other, Sonstige Körperschaft), Technische Universität Hamburg Betriebseinheit Elektronenmikroskopie BEEM (Other, Sonstige Körperschaft), SFB 986 Maßgeschneiderte Multiskalige Materialsysteme M3 (Other, Sonstige Körperschaft)
Title:	Hierarchical supercrystalline nanocomposites through the self-assembly of organically-modified ceramic nanoparticles/ Berta Domènech, Michael Kampferbeck, Emanuel Larsson, Tobias Krekeler, Büsra Bor, Diletta Giuntini, Malte Blankenburg, Martin Ritter, Martin Müller, Tobias Vossmeyer, Horst Weller & Gerold Schneider
Type of Resource:	E-Book Component Part
Language:	English
published:	2019
Series:	: Scientific reports, Vol. 9. 2019; Article number 3435; insgesammt 11 Seiten , volume:9
Source:	Verbunddaten SWB Lizenzfreie Online-Ressourcen

Description
Abstract:	Biomaterials often display outstanding combinations of mechanical properties thanks to their hierarchical structuring, which occurs through a dynamically and biologically controlled growth and self-assembly of their main constituents, typically mineral and protein. However, it is still challenging to obtain this ordered multiscale structural organization in synthetic 3D-nanocomposite materials. Herein, we report a new bottom-up approach for the synthesis of macroscale hierarchical nanocomposite materials in a single step. By controlling the content of organic phase during the self-assembly of monodisperse organically-modified nanoparticles (iron oxide with oleyl phosphate), either purely supercrystalline or hierarchically structured supercrystalline nanocomposite materials are obtained. Beyond a critical concentration of organic phase, a hierarchical material is consistently formed. In such a hierarchical material, individual organically-modified ceramic nanoparticles (Level 0) self-assemble into supercrystals in face-centered cubic superlattices (Level 1), which in turn form granules of up to hundreds of micrometers (Level 2). These micrometric granules are the constituents of the final mm-sized material. This approach demonstrates that the local concentration of organic phase and nano-building blocks during self-assembly controls the final material's microstructure, and thus enables the fine-tuning of inorganic-organic nanocomposites' mechanical behavior, paving the way towards the design of novel high-performance structural materials.
Physical Description:	Illustrationen, Diagramme 11
ISSN:	2045-2322
DOI:	10.1038/s41598-019-39934-4