ja7b06591_si_001.pdf (1.26 MB)
Self-Assembled 2D Free-Standing Janus Nanosheets with Single-Layer Thickness
journal contribution
posted on 2017-09-13, 20:15 authored by Yiyang Lin, Michael R. Thomas, Amy Gelmi, Vincent Leonardo, E. Thomas Pashuck, Stephanie A. Maynard, Ye Wang, Molly M. StevensWe
report the thermodynamically controlled growth of solution-processable
and free-standing nanosheets via peptide assembly in two dimensions.
By taking advantage of self-sorting between peptide β-strands
and hydrocarbon chains, we have demonstrated the formation of Janus
2D structures with single-layer thickness, which enable a predetermined
surface heterofunctionalization. A controlled 2D-to-1D morphological
transition was achieved by subtly adjusting the intermolecular forces.
These nanosheets provide an ideal substrate for the engineering of
guest components (e.g., proteins and nanoparticles), where enhanced
enzyme activity was observed. We anticipate that sequence-specific
programmed peptides will offer promise as design elements for 2D assemblies
with face-selective functionalization.
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2 D-to -1Dpeptide assembly2 D assemblieshydrocarbon chainssurface heterofunctionalizationJanus 2 D structuresguest componentsSingle-Layer ThicknessSelf-Assembled 2 D Free-Standing Janus Nanosheetsdesign elementspeptide β- strandsenzyme activityface-selective functionalizationnanosheetsingle-layer thickness
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