Soft Matter c 5 sm 01908 g A Q 1 Q 2 simple strategy to improve the interfacial activity of true Janus gold nanoparticles : a shorter hydrophilic capping ligand
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A simple strategy to improve the interfacial activity of true Janus gold nanoparticles: a shorter hydrophilic capping ligand.
Janus gold nanoparticles (JPs) of ∼4 nm-diameter half functionalized with 1-hexanethiol as a hydrophobic capping ligand exhibit significantly higher interfacial activity, reproducibility and rheological response when the other half is functionalized with 1,2-mercaptopropanediol (JPs-MPD) than with 2-(2-mercaptoethoxy)ethanol (JPs-MEE), both acting as hydrophilic capping ligands. The interfacial...
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Janus nanoparticles were prepared by taking advantage of interfacial ligand exchange reactions of hydrophobic hexanethiolate-protected gold nanoparticles with hydrophilic 2-(2-mercaptoethoxy)ethanol (MEA). A monolayer of the particles was first formed at the air–water interface by the Langmuir technique and then deposited onto a substrate surface by the Langmuir–Blodgett method. The particle mo...
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A IO N Ligand molecules on monolayer-protected gold nanoparticles (NPs) determine the majority of their surface properties. It has been established that when a binary mixture of dislike ligands forms a self-assembled monolayer either on fl at surfaces [ 1 ] or on a NP, [ 2 ] separation into distinct domains occurs. For gold NPs between ∼ 3 and ∼ 8 nm in diameter, stripe-like domains form. [ 2b ...
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