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Published on: June 14, 2021
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A pure DNA hydrogel with stable catalytic ability produced by one-step rolling circle amplification
Yishun Huang1, Wanlin Xu1, Guoyuan Liu1
1Department of Materials Science and Engineering, Southern University of Science and Technology, 1088 Xueyuan Blvd., Xili, Nanshan District, Shenzhen, Guangdong 518055, China. tianll@sustc.edu.cn.
Chemical Communications (Cambridge, England)
|February 28, 2017
Summary
Researchers developed DNA hydrogels with horseradish-peroxidase-like activity using rolling-circle amplification. These stable catalytic hydrogels enable sensitive glucose detection when combined with glucose oxidase.
Area of Science:
- Biomaterials Science
- Catalysis
- Biotechnology
Background:
- DNA hydrogels offer tunable properties for various applications.
- Enzyme-mimicking catalytic materials are of significant interest.
- Developing stable and efficient catalytic systems is crucial.
Purpose of the Study:
- To synthesize DNA hydrogels with horseradish-peroxidase-like catalytic activity.
- To evaluate the stability of the catalytic hydrogels under different conditions.
- To demonstrate the application of the hydrogel in glucose detection.
Main Methods:
- Rolling-circle amplification (RCA) was employed for DNA hydrogel synthesis.
- Horseradish-peroxidase-like catalytic activity was characterized.
- Stability was assessed at elevated temperatures and during long-term storage.
- Glucose oxidase was integrated for glucose sensing applications.
Main Results:
- DNA hydrogels with intrinsic catalytic capability were successfully produced.
- The catalytic hydrogels demonstrated enhanced stability against heat and prolonged storage.
- The integrated system showed sensitive and reliable glucose detection.
Conclusions:
- RCA is an effective method for creating catalytic DNA hydrogels.
- These novel hydrogels possess superior stability and enzyme-mimicking properties.
- The developed system presents a promising platform for biosensing, particularly for glucose monitoring.
