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Enhanced cell proliferation by electrical stimulation based on electroactive regenerated bacterial cellulose
Li Wang1, Sanming Hu1, Muhammad Wajid Ullah1
1Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, PR China.
Carbohydrate Polymers
|September 16, 2020
Summary
This study created a novel electroactive hydrogel (rBC/PPy/CNT) that significantly boosts cell proliferation for wound healing when combined with electric fields (EFs). This new material shows great potential for advanced wound treatment applications.
Area of Science:
- Biomaterials Science
- Regenerative Medicine
- Nanotechnology
Background:
- Electric fields (EFs) show potential for wound healing but have limited efficacy over the entire wound area.
- Stimulating cellular activity is crucial for effective wound repair and regeneration.
Purpose of the Study:
- To develop a novel electroactive hydrogel, regenerated bacterial cellulose/polypyrrole/carbon nanotube (rBC/PPy/CNT), to enhance cell proliferation with EFs for wound healing.
- To investigate the properties and efficacy of the developed hydrogel in combination with EFs.
Main Methods:
- Fabrication of rBC/PPy/CNT hydrogel using cellulose dissolution and crosslinking.
- Characterization of hydrogel properties including morphology (FESEM), chemical structure (FTIR, XRD), thermal stability (TGA), conductivity, mechanical strength, and swelling.
- In vitro assessment of NIH3T3 cell proliferation on the hydrogel with and without EF stimulation.
Main Results:
- The rBC/PPy/CNT hydrogel exhibited enhanced thermal stability, mechanical strength, recoverability, and swelling ability.
- The hydrogel demonstrated a 107-fold increase in electrical conductivity compared to rBC.
- In vitro studies showed good biocompatibility and significant enhancement of NIH3T3 cell proliferation when EFs were applied to the rBC/PPy/CNT hydrogel.
Conclusions:
- The developed rBC/PPy/CNT electroactive hydrogel possesses superior properties for wound healing applications.
- The combination of rBC/PPy/CNT hydrogel with electric fields significantly promotes cellular activities, indicating its potential for advanced wound treatment.
