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Updated: Jun 14, 2025

Author Spotlight: Developing Synthetic Cells from Programmable Amphiphilic DNA Nanostructures

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Published on: May 31, 2024

Tuning Covalent Organic Frameworks for Nucleic Acid Loading: Toward Creating a Hierarchical Artificial Cell.

Yiming Wang^1,2, Chen Wang^1,2, Yunlong Zheng^3,4

¹State Key Laboratory of Green Biomanufacturing, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China.

Journal of the American Chemical Society

|June 13, 2025

Summary

This summary is machine-generated.

Researchers created advanced artificial cells with nucleus structures using covalent organic frameworks (COFs). This method enables complex DNA encapsulation and cell-free transcription/translation for novel biological systems.

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Stable DNA Motifs, 1D and 2D Nanostructures Constructed from Small Circular DNA Molecules

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Area of Science:

Synthetic Biology
Materials Science
Biotechnology

Background:

Bottom-up artificial cell construction is crucial for life sciences and applications.
Existing one-pot methods often yield oversimplified structures.
Advanced hierarchical structures are needed for more complex artificial cell functions.

Purpose of the Study:

To develop a novel strategy for constructing artificial cells with nucleus-like structures.
To utilize covalent organic frameworks (COFs) for DNA encapsulation and compartmentalization.
To integrate cell-free transcription and translation (CFTT) within these artificial nuclei.

Main Methods:

Utilized covalent organic frameworks (COFs) with spatiotemporal strategies for linear and circular DNA encapsulation.
Employed a template sacrifice method (COFcap-1) for encapsulating circular plasmids within COFs.
Integrated cell-free transcription and translation (CFTT) systems within the COF structures.
Constructed artificial nucleus logic gates and encapsulated COF-DNA complexes within liposomes.

Main Results:

Successfully constructed nucleus structures using COFs for both linear and circular DNA.
Demonstrated the crucial role of COF pore size and microenvironment on CFTT efficiency.
Engineered three artificial nucleus logic gates, achieving information transmission between artificial organelles.
Successfully encapsulated DNA-loaded COFs within liposomes to form hierarchical artificial cells.

Conclusions:

This study presents a novel method for creating highly structured artificial cells using porous COFs.
The developed COF-based nucleus structure enhances DNA encapsulation and CFTT efficiency.
This work opens new avenues for constructing complex, hierarchical artificial cells for various applications.