期刊
ADVANCED MATERIALS INTERFACES
卷 9, 期 32, 页码 -出版社
WILEY
DOI: 10.1002/admi.202201471
关键词
hydro-; fluoro-; lipophilic/phobic; nanoparticles; self-assembly; shell-by-shell architectures; surface chemistry
资金
- Deutsche Forschungsgemeinschaft (DFG) [SFB 953 (182849149), HA 2952/10-1]
- Deutsche Bundesstiftung Umwelt (DBU
- German Federal Environmental Foundation)
- Projekt DEAL
The formation of mixed shell-by-shell systems with tunable compositions is demonstrated by using molecular self-assembly driven by chemical recognition motifs. By using aluminum oxide nanoparticles as template surfaces, the composition of the shell-by-shell assemblies can be controlled. The composition of the assemblies is studied and vesicle-like bilayer structures can be formed.
The formation of mixed shell-by-shell (SbS) systems with tunable shell compositions is demonstrated by using molecular self-assembly driven by chemical recognition motifs. Aluminum oxide nanoparticles (AIOx-NPs) act as template surface for a self-assembled monolayer (SAM) of either partially fluorinated fluoroalkyl or alkyl chained phosphonic acid derivatives or defined stoichiometric mixtures of those. By providing an equimolar mixture of corresponding fluoroalkyl and alkyl-chained amphiphiles in water, the stoichiometry of underlaying mixed SAM on the NP-surface preferentially directs the composition of the secondary self-assembly. The composition of the shell-by-shell assemblies is studied by high performance liquid chromatography and fluorescence spectroscopy. The concept allows the formation of NP-templated vesicle-like bilayer structures, even consisting of orthogonal chain structures in tunable composition driven by chemical recognition and hydrophobic segregation.
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