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Related Experiment Video

Updated: Jun 3, 2026

Solid-phase Submonomer Synthesis of Peptoid Polymers and their Self-Assembly into Highly-Ordered Nanosheets
13:42

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
PubMed
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.

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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.