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Related Experiment Video

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Self-assembly of Complex Two-dimensional Shapes from Single-stranded DNA Tiles

Self-assembly of Complex Two-dimensional Shapes from Single-stranded DNA Tiles

Published on: May 8, 2015

Emergent complexity from simple anisotropic building blocks: shells, tubes, and spirals.

Szilard N Fejer¹, Dwaipayan Chakrabarti, David J Wales

¹University Chemical Laboratories, Lensfield Road, Cambridge CB2 1EW, United Kingdom.

|January 9, 2010

Summary

This summary is machine-generated.

A simple model with anisotropic interactions explains complex mesoscopic structure assembly. It reproduces diverse morphologies and matches experimental observations in capsid assembly.

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Area of Science:

Biophysics
Materials Science
Computational Modeling

Background:

Mesoscopic structures exhibit complex morphologies.
Understanding the physical principles governing self-assembly is crucial.
Existing models may not fully capture the diversity of observed structures.

Purpose of the Study:

To develop a simple, generic coarse-grained model for mesoscopic structure assembly.
To elucidate the physical principles driving the formation of complex morphologies.
To validate the model against experimental observations.

Main Methods:

Development of a coarse-grained model with anisotropic interactions.
Characterization of global minima for clusters across various parameters.
Simulation and analysis of structure formation.

Main Results:

The model successfully reproduces diverse global minima morphologies, including spheroidal shells, tubular, helical, and head-tail structures.
Anisotropic interactions are shown to be key drivers of specific morphology formation.
The model accurately captures experimental phenomena like competing morphologies and capsid polymorphism.

Conclusions:

A simple anisotropic interaction model provides a powerful framework for understanding mesoscopic self-assembly.
The model elucidates the physical basis for diverse complex structures observed in nature and experiments.
This approach offers insights into capsid assembly and the role of scaffolding proteins.