Ligand-Mediated Spatially Controllable Superassembly of Asymmetric Hollow Nanotadpoles with Fine-Tunable Cavity as Smart H2O2-Sensitive Nanoswimmers

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Author(s)
Yan, Miao
Xie, Lei
Qiu, Beilei
Zhou, Shan
Liu, Tianyi
Zeng, Jie
Liang, Qirui
Tang, Jinyao
Liang, Kang
Zhao, Dongyuan
Kong, Biao
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2021
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Abstract

Ligand-mediated interface control has been broadly applied as a powerful tool in constructing sophisticated nanocomposites. However, the resultant morphologies are usually limited to solid structures. Now, a facile spatially controllable ligand-mediated superassembly strategy is explored to construct monodispersed, asymmetric, hollow, open Au-silica (SiO2) nanotadpoles (AHOASTs). By manipulating the spatial density of ligands, the degree of diffusion of silica can be precisely modulated; thus the diameters of the cavity can be continuously tuned. Due to their highly anisotropic, hollow, open morphologies, we construct a multicompartment nanocontainer with enzymes held and isolated inside the cavity. Furthermore, the resulting enzyme-AHOASTs are used as biocompatible smart H2O2-sensitive nanoswimmers and demonstrate a higher diffusion coefficient than other nanoscaled swimmers. We believe that this strategy is critical not only in designing sophisticated hollow nanosystem but also in providing great opportunities for applications in nanomaterial assembly, catalysis, sensors, and nanoreactors.

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ACS Nano

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This publication has been entered as an advanced online version in Griffith Research Online.

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Inorganic chemistry

Nanotechnology

H2O2-sensitive nanoswimmers

direct superassembly

fine-tunable cavity

ligand-mediated

nanosynthesis

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Yan, M; Xie, L; Qiu, B; Zhou, S; Liu, T; Zeng, J; Liang, Q; Tang, J; Liang, K; Zhao, D; Kong, B, Ligand-Mediated Spatially Controllable Superassembly of Asymmetric Hollow Nanotadpoles with Fine-Tunable Cavity as Smart H2O2-Sensitive Nanoswimmers, ACS Nano, 2021

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