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Related Experiment Video

Updated: Jun 18, 2026

A Micropatterning Assay for Measuring Cell Chirality

A Micropatterning Assay for Measuring Cell Chirality

Published on: March 11, 2022

Amplification of chirality at solid surfaces.

Karl-Heinz Ernst¹

¹Molecular Surface Science, Empa-Swiss Materials Testing and Research Laboratories, Dübendorf, Switzerland. karl-heinz.ernst@empa.ch

Origins of Life and Evolution of the Biosphere : the Journal of the International Society for the Study of the Origin of Life

|November 14, 2009

Summary

Symmetry breaking in 2D crystallization creates homochiral structures. This process, driven by small chiral excesses, amplifies chirality, potentially explaining homochirality in biological molecules.

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Area of Science:

Surface Science
Crystallization
Chirality Studies

Background:

Symmetry-breaking is crucial in physical and chemical processes.
Understanding the origin of homochirality in biomolecules is a fundamental scientific challenge.
Two-dimensional (2D) crystallization offers a unique platform to study symmetry breaking.

Purpose of the Study:

To review symmetry-breaking phenomena in 2D crystallization.
To discuss the potential impact of 2D crystallization on chiral amplification in 3D systems.
To connect these phenomena to the origin of homochirality in the biomolecular world.

Main Methods:

Review of existing literature on 2D crystallization and symmetry breaking.
Analysis of adsorption processes of prochiral molecules on surfaces.
Theoretical discussion of chiral amplification mechanisms.

Main Results:

Adsorption of prochiral molecules on surfaces leads to 2D conglomerates, forming locally homochiral crystal structures.
Small enantiomeric excesses or chiral impurities can induce global homochirality across the entire surface.
2D crystallization acts as a powerful chiral amplifier.

Conclusions:

Surface-mediated 2D crystallization is a viable mechanism for generating homochirality.
This mechanism provides a potential pathway for the origin of homochirality in biological systems.
Further research into 2D crystallization can illuminate fundamental questions in chemistry and biology.