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Related Experiment Video

Updated: Jun 6, 2026

Designing a Bio-responsive Robot from DNA Origami

Designing a Bio-responsive Robot from DNA Origami

Published on: July 8, 2013

A stimuli responsive DNA walking device.

Chunyan Wang¹, Jingsong Ren, Xiaogang Qu

¹Laboratory of Chemical Biology, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China.

Chemical Communications (Cambridge, England)

|December 15, 2010

Summary

This summary is machine-generated.

A novel pH-responsive DNA walker was developed. This molecular machine can move molecules along a DNA track, responding to changes in acidity.

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Area of Science:

Biochemistry
Molecular Engineering
Nanotechnology

Background:

DNA nanotechnology enables the construction of complex molecular machines.
Stimuli-responsive materials are crucial for controlled molecular transport.
Developing precise molecular movers is essential for nanoscale applications.

Purpose of the Study:

To design and characterize a pH-responsive DNA walker.
To demonstrate the reversible transport of molecules along a DNA track.
To explore the potential of environmental stimuli in controlling molecular movement.

Main Methods:

DNA self-assembly techniques were used to construct the walker and track system.
pH-induced conformational changes in DNA were exploited to drive walker movement.
Fluorescent labeling and microscopy were employed to visualize and quantify molecular transport.

Main Results:

A DNA walker capable of autonomous movement along a predefined DNA track was successfully engineered.
The walker's movement was demonstrated to be reversible and controllable by altering the solution's pH.
Specific molecular payloads were shown to be transported efficiently by the DNA walker.

Conclusions:

A pH-responsive DNA walker represents a significant advancement in DNA nanotechnology.
This system offers a versatile platform for controlled molecular delivery and manipulation at the nanoscale.
The findings pave the way for developing sophisticated DNA-based nanodevices responsive to environmental cues.