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Related Concept Videos

Southern Blot02:57

Southern Blot

Agarose gel electrophoresis is very useful in separating DNA fragments by size. Running a DNA ladder containing fragments of the known length alongside the sample helps determine the approximate length of the sample DNA fragments. However, additional steps are needed to verify the sequence identity of the sample DNA fragments.
Denatured DNA fragments must be transferred onto a carrier membrane from the gel to make it accessible to a probe - a small ssDNA fragment complementary to the target DNA...

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Related Experiment Video

Updated: Jun 3, 2026

Gel-seq: A Method for Simultaneous Sequencing Library Preparation of DNA and RNA Using Hydrogel Matrices
09:19

Gel-seq: A Method for Simultaneous Sequencing Library Preparation of DNA and RNA Using Hydrogel Matrices

Published on: March 26, 2018

DNA-SWNT hybrid hydrogel.

Enjun Cheng1, Yulin Li, Zhongqiang Yang

  • 1Key Laboratory of Organic Optoelectronics & Molecular Engineering of the Ministry of Education, Department of Chemistry, Tsinghua University, Beijing 100084, China.

Chemical Communications (Cambridge, England)
|April 7, 2011
PubMed
Summary

Researchers created a novel DNA-nanotube hybrid hydrogel. This material is pH-responsive and its strength can be adjusted for various applications.

Area of Science:

  • Biomaterials Science
  • Nanotechnology
  • Polymer Chemistry

Background:

  • Hydrogels are versatile materials with applications in drug delivery and tissue engineering.
  • Stimuli-responsive materials offer advanced functionalities for smart devices.
  • Carbon nanotubes provide unique mechanical and electrical properties.

Purpose of the Study:

  • To synthesize and characterize a novel DNA-single-walled carbon nanotube (SWNT) hybrid hydrogel.
  • To investigate the pH responsiveness of the hybrid hydrogel.
  • To explore the tunability of the hydrogel's mechanical strength.

Main Methods:

  • DNA-templated self-assembly of single-walled carbon nanotubes (SWNTs).
  • Hydrogel formation using DNA-SWNT composites.

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  • Rheological measurements to assess mechanical properties.
  • pH titration to evaluate swelling and responsive behavior.

    • Main Results:

    • Successful preparation of a stable DNA-SWNT hybrid hydrogel.
    • Demonstrated pH-responsive swelling and deswelling behavior.
    • Achieved tunable mechanical strength by varying DNA concentration or SWNT loading.

    Conclusions:

    • The developed DNA-SWNT hybrid hydrogel offers a promising platform for stimuli-responsive biomaterials.
    • The pH responsiveness and tunable strength open possibilities for advanced applications.
    • This hybrid material integrates the properties of DNA and SWNTs for novel functionalities.