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Issue 25, 2019
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Free-standing 2D nanorafts by assembly of 1D nanorods for biomolecule sensing

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Abstract

Novel materials from self-assembled nanocrystals hold great promise for applications ranging from inorganic catalysis to bio-imaging. However, because of the inherent anisotropic properties, it is challenging to assemble one-dimensional (1D) nanorods into higher-order structures (e.g. 2D sheets or 3D networks) without any support. Here, we have developed a facile strategy for the direct self-assembly of 1D nanorods into free-standing 2D nanorafts with lateral dimensions up to several micrometers. As a general approach, 2D nanorafts with diverse compositions, e.g. MgF2, WO2, CdS, ZnS, and ZnSe nanorafts, have been fabricated from the assembly of their 1D building blocks. More importantly, these nanorafts show high stability even when dispersed in different solvents, making them suitable for various applications. Because of their high porosity and strong adsorption capability, MgF2 nanorafts were investigated to illustrate the collective advantages generated from the assembly platform. Moreover, flexibility in the composition and structure of the building blocks demonstrated in this work will lead to next generation materials with rich functionalities.

Graphical abstract: Free-standing 2D nanorafts by assembly of 1D nanorods for biomolecule sensing

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Supplementary files

Article information


Submitted
26 Mar 2019
Accepted
24 May 2019
First published
28 May 2019

Nanoscale, 2019,11, 12169-12176
Article type
Paper

Free-standing 2D nanorafts by assembly of 1D nanorods for biomolecule sensing

R. Cai, Y. Du, D. Yang, G. Jia, B. Zhu, B. Chen, Y. Lyu, K. Chen, D. Chen, W. Chen, L. Yang, Y. Zhao, Z. Chen and W. Tan, Nanoscale, 2019, 11, 12169
DOI: 10.1039/C9NR02636C

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