Free-Floating 2D Nanosheets with a Superlattice Assembled from Fe₃O₄ Nanoparticles for Peroxidase-Mimicking Activity.

ABSTRACT: The organization of nanoparticles (NPs) with controlled chemical composition and size distribution into well-defined sheets will find many practical applications, but the chemistry remains problematic. Therefore, we report a facile method to assemble NPs to free-floating two-dimensional (2D) nanosheets with a superlattice and thicknesses reaching 22.8 nm. The ligand oleic acid is critical in the formation of nanosheets. As assembled, these free-floating 2D nanosheets remain intact in both polar and nonpolar solvents, e.g., deionized water, ethanol, N,N-dimethylformamide, dimethyl sulfoxide, toluene, hexane, and chloroform, without any disassembly. Compared to Fe₃O₄ NP building blocks, these 2D nanosheets show more favorable catalytic properties and enhanced cat

SUBMITTER: Cai R 

PROVIDER: S-EPMC7453917 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature