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Updated: Jun 3, 2026
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Solid-phase Submonomer Synthesis of Peptoid Polymers and their Self-Assembly into Highly-Ordered Nanosheets
Published on: November 2, 2011
Free-standing ultrathin two-dimensional peptide crystals
Xiao Wang1,2, Rui Yao1, Shuai-Liang Yang1
1School of Chemistry and Chemical Engineering, State Key Laboratory of Synergistic Chem-Bio Synthesis, Shanghai Jiao Tong University, Shanghai, People's Republic of China.
Nature Chemistry
|June 1, 2026
Summary
Researchers developed a metal-directed assembly strategy to create stable, ultrathin 2D peptide crystals. These novel materials exhibit programmable functions and can selectively bind chiral pharmaceutical molecules.
Area of Science:
- Materials Science
- Supramolecular Chemistry
- Nanotechnology
Background:
- Two-dimensional (2D) peptide structures, proposed as synthetic analogues of biological membranes, aim to mimic biomolecular recognition.
- Challenges exist in constructing ultrathin, single-crystalline 2D peptide materials due to difficulties in establishing stable hydrogen-bonding networks.
Purpose of the Study:
- To develop a general strategy for creating structurally diverse 2D crystalline peptide materials with tunable surfaces and programmable functions.
- To overcome limitations in constructing stable, ordered 2D peptide architectures for advanced applications.
Main Methods:
- A metal-directed β-sheet-like assembly strategy was employed to synthesize 2D peptide crystals.
- Crystallographic analysis was used to determine structural determinants and understand the assembly mechanism.
- Exfoliation techniques were utilized to obtain free-standing, single-crystalline ultrathin nanosheets.
Main Results:
- Achieved programmable control over peptide sequence, chirality, and side-chain chemistry in 2D crystals.
- Demonstrated enhanced stability of the 2D lattice through intralayer mechanical interlocking in antiparallel arrangements.
- Exfoliated nanosheets exhibited stereoselective binding of glucocorticoids and chiral pharmaceutical molecules with high enantioselectivity (up to 20.9).
Conclusions:
- The metal-directed assembly strategy provides a general route to novel 2D peptide crystalline materials.
- These materials possess tunable surfaces and programmable functions, enabling applications in enantioselective recognition.
- The developed 2D peptide nanosheets show promise for chiral separation and sensing technologies.
