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Updated: Oct 5, 2025

Preparation of DNA-crosslinked Polyacrylamide Hydrogels
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Stimuli-responsive DNA-based hydrogels for biosensing applications.

Mengmeng Chen1, Yu Wang1, Jingyang Zhang1

  • 1Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin Institute of Environmental and Operational Medicine, Tianjin, 300050, People's Republic of China.

Journal of Nanobiotechnology
|January 22, 2022
PubMed
Summary
This summary is machine-generated.

Stimuli-responsive DNA hydrogels offer versatile biosensing capabilities. This review details their synthesis, applications, and integration with various detection platforms for advanced bioanalysis.

Keywords:
BiosensingDNA hydrogelStimuli-responsiveness

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Last Updated: Oct 5, 2025

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Area of Science:

  • Biomaterials Science
  • Nanotechnology
  • Analytical Chemistry

Background:

  • DNA's inherent structural and functional information enables precise construction of 2D and 3D macro products.
  • DNA hydrogels are biocompatible, stable, tunable, and biologically versatile, with broad applications in bioanalysis and biomedicine.
  • Stimuli-responsive DNA hydrogels (smart DNA hydrogels) exhibit reversible hydrogel-to-sol transitions, making them ideal for sensing applications.

Purpose of the Study:

  • To review stimuli-responsive DNA hydrogels and their biosensing applications.
  • To introduce synthesis methods for DNA hydrogels.
  • To describe the current status and analytical mechanisms of DNA hydrogels in biosensing.

Main Methods:

  • Review of existing literature on stimuli-responsive DNA hydrogels.
  • Elaboration of synthesis methods for DNA hydrogels.
  • Description of integration with optical, electrochemical, and point-of-care testing (POCT) platforms.

Main Results:

  • Stimuli-responsive DNA hydrogels are effective smart materials for sensing.
  • Combining these hydrogels with multiple sensing platforms enhances biocompatibility and recognition flexibility.
  • Detailed analytical mechanisms are presented for various detection platforms.

Conclusions:

  • Stimuli-responsive DNA hydrogels represent a promising class of smart materials for advanced biosensing.
  • Their integration with diverse detection platforms offers flexible and biocompatible recognition components.
  • Future prospects highlight continued development in DNA hydrogel-based biosensing.