Self-Assembled
2D Free-Standing Janus Nanosheets with
Single-Layer Thickness
Version 2 2017-09-14, 07:43
Version 1 2017-09-13, 20:15
Posted on 2017-09-14 - 07:43
We
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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Lin, Yiyang; Thomas, Michael R.; Gelmi, Amy; Leonardo, Vincent; Pashuck, E. Thomas; Maynard, Stephanie A.; et al. (2017). Self-Assembled
2D Free-Standing Janus Nanosheets with
Single-Layer Thickness. ACS Publications. Collection. https://doi.org/10.1021/jacs.7b06591
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AUTHORS (8)
YL
Yiyang Lin
MT
Michael R. Thomas
AG
Amy Gelmi
VL
Vincent Leonardo
EP
E. Thomas Pashuck
SM
Stephanie A. Maynard
YW
Ye Wang
MS
Molly M. Stevens
KEYWORDS
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