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- W2974501635 abstract "This work proposes an improvement of gold nanoparticle sensors using mixed-ligand shells composed of ligands with a shared affinity. As a proof of concept, two ligands, 2-Sulfanylethanesulfonate (MSA) and 11-mercaptoundecanoic acid (MUA), sharing an affinity towards Ba2+ were chosen. The two ligands were then combined in a mixed ligand shell, and the Ba2+ sensor properties of both the mixed-ligand and mono-ligand shell nanoparticles were examined. The sensor properties of the mixed-ligand nanoparticles were then shown to be superior to both mono-ligand particles. The mixed-ligand nanoparticles retained a high sensitivity for Ba2+, while greatly improving the sensor linear range and selectivity. Next, nanoparticles stabilized by a mixed-ligand monolayer consisting of either MSA or MUA with a ligand unreactive towards Ba2+ were shown to have no reactivity towards Ba2+. This result indicates a cooperative effect between the MSA and MUA ligands and highlights the importance of the reactivity of both ligands for sensor optimization." @default.
- W2974501635 created "2019-09-26" @default.
- W2974501635 creator A5033717449 @default.
- W2974501635 creator A5076504890 @default.
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- W2974501635 date "2020-02-01" @default.
- W2974501635 modified "2023-09-25" @default.
- W2974501635 title "Improving the properties of a gold nanoparticle barium sensor through mixed-ligand shells" @default.
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- W2974501635 doi "https://doi.org/10.1016/j.talanta.2019.120370" @default.
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