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Updated: Jun 10, 2026
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Preparation of Multifunctional Silk-Based Microcapsules Loaded with DNA Plasmids Encoding RNA Aptamers and Riboswitches
Published on: October 8, 2021
Robust and photocontrollable DNA capsules using azobenzenes.
Fumiaki Tanaka1, Toshio Mochizuki, Xingguo Liang
1Graduate School of Information Science and Technology, University of Tokyo, Tokyo 113-8656, Japan. fumi95@is.s.u-tokyo.ac.jp
Nano Letters
|July 31, 2010
Summary
Researchers developed durable, light-controlled DNA capsules using azobenzene molecules. These novel DNA nanostructures overcome the limitations of conventional DNA assemblies, offering enhanced stability and environmental responsiveness.
Area of Science:
- Biotechnology
- Nanotechnology
- Materials Science
Background:
- DNA self-assembly enables nanoscale structure fabrication.
- Conventional DNA structures exhibit limited thermal stability and environmental control.
- Flexibility of DNA poses challenges for robust structural applications.
Purpose of the Study:
- To engineer robust and photocontrollable DNA capsules.
- To overcome the inherent flexibility and instability of traditional DNA nanostructures.
- To introduce environmental responsiveness to DNA-based materials.
Main Methods:
- Utilizing azobenzene molecules within DNA self-assembly processes.
- Constructing three-dimensional DNA capsules.
- Employing ultraviolet irradiation for structural control.
Main Results:
- Successfully created stable DNA capsules resistant to higher temperatures.
- Demonstrated photocontrollability of DNA structures using ultraviolet light.
- Developed a method for fabricating robust, environmentally responsive DNA nanostructures.
Conclusions:
- Azobenzene-modified DNA self-assembly yields robust nanostructures.
- Photocontrollable DNA capsules offer a new paradigm for responsive nanomaterials.
- This approach enhances the utility of DNA nanotechnology in demanding environments.
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