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Host-guest driven ligand replacement on monodisperse inorganic nanoparticles.

ABSTRACT: We demonstrate that crown ether-assisted ligand replacement on Fe₃O₄ NPs using halide salts leads to quantitative stripping of an existing stabilizer shell with unprecedented (complete) efficiency; this allows subsequent re-grafting of functional ligands at maximal surface density. The mechanism of the anion-driven ligand replacement is elucidated by varying the halide salt and the versatility by varying the re-grafted ligand.

SUBMITTER: Shirmardi Shaghasemi B

PROVIDER: S-EPMC5708364 | biostudies-literature | 2017 Jul

REPOSITORIES: biostudies-literature

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Host-guest driven ligand replacement on monodisperse inorganic nanoparticles.

Shirmardi Shaghasemi B B Dehghani E S ES Benetti E M EM Reimhult E E

Nanoscale 20170701 26

We demonstrate that crown ether-assisted ligand replacement on Fe<sub>3</sub>O<sub>4</sub> NPs using halide salts leads to quantitative stripping of an existing stabilizer shell with unprecedented (complete) efficiency; this allows subsequent re-grafting of functional ligands at maximal surface density. The mechanism of the anion-driven ligand replacement is elucidated by varying the halide salt and the versatility by varying the re-grafted ligand. ...[more]

PMID: 28643836

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