Issue 23, 2022

Supraballs as spherical solid 3D superlattices of hydrophobic nanocrystals dispersed in water: nanoarchitectonics and properties

Abstract

Herein, we use a water-dispersive 3D suprastructure of ferrite (Fe3O4) nanocrystals called supraballs. They are solid spherical assemblies of hydrophobic nanocrystals with a rather low Young's modulus compared to similar 3D superlattices deposited on a substrate. Using atomic force microscopy methods, their nanomechanical properties are measured, which show small flexibility and deformation. This suprastructure behaves as a nanoheater and remains self-assembled after internalization in cancer cells. Furthermore, when subjected to light, the percentage of dead cells compared to the nanocrystals used as building blocks and dispersed in the solution increases.

Graphical abstract: Supraballs as spherical solid 3D superlattices of hydrophobic nanocrystals dispersed in water: nanoarchitectonics and properties

Article information

Article type
Perspective
Submitted
03 Feb 2022
Accepted
18 May 2022
First published
19 May 2022

Phys. Chem. Chem. Phys., 2022,24, 14140-14149

Supraballs as spherical solid 3D superlattices of hydrophobic nanocrystals dispersed in water: nanoarchitectonics and properties

M. P. Pileni, Phys. Chem. Chem. Phys., 2022, 24, 14140 DOI: 10.1039/D2CP00566B

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