2D Crystal Engineering of Nanosheets Assembled from Helical Peptide Building Blocks
- Emory Univ., Atlanta, GA (United States)
- Paul Scherrer Inst. (PSI), Villigen (Switzerland)
- Argonne National Lab. (ANL), Argonne, IL (United States). X-ray Science Division
- Paul Scherrer Inst. (PSI), Villigen (Switzerland); Univ. of Basel (Switzerland). Center for Cellular Imaging and NanoAnalytics; Leiden Univ. (Netherlands)
The successful integration of 2D nanomaterials into functional devices hinges on developing fabrication methods that afford hierarchical control across length scales of the entire assembly. We demonstrate structural control over a class of crystalline 2D nanosheets assembled from collagen triple helices. By lengthening the triple helix unit through sequential additions of Pro-Hyp-Gly triads, we achieved sub-angstrom tuning over the 2D lattice. These subtle changes influence the overall nanosheet size, which can be adjusted across the mesoscale size regime. The internal structure was observed by cryo-TEM with direct electron detection, which provides realspace high-resolution images, in which individual triple helices comprising the lattice can be clearly discerned. These results establish a general strategy for tuning the structural hierarchy of 2D nanomaterials that employ rigid, cylindrical structural units.
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- National Science Foundation (NSF); USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- AC02-06CH11357
- OSTI ID:
- 1569846
- Journal Information:
- Angewandte Chemie (International Edition), Vol. 58, Issue 38; ISSN 1433-7851
- Publisher:
- WileyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Formation, Stability and Self‐Assembly Behaviour of the Collagen‐Like Triple Helix Confirmation: The Role of Ser, Ala and Arg/Glu
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journal | December 2019 |
Stabilization of the triple helix in collagen mimicking peptides
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journal | January 2019 |
Hierarchical self-assembly of helical coordination polymers and formation of a lamellar structure via the cooperativity of two-step Ag( i ) coordination and π–π interactions
|
journal | January 2020 |
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