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A bioabsorbable mechanoelectric fiber as electrical stimulation suture
Zhouquan Sun1, Yuefan Jin2, Jiabei Luo1
1State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, P. R. China.
Nature Communications
|October 8, 2024
Summary
A new biodegradable mechanoelectric suture speeds wound healing by 50%. This innovative device generates electric fields from movement, offering a safer, faster alternative to traditional sutures for surgical incisions.
Area of Science:
- Biomaterials Science
- Regenerative Medicine
- Surgical Innovation
Background:
- Traditional sutures have functional limitations in surgical medicine.
- Electrical stimulation is a recognized non-pharmacological approach to enhance wound healing.
- There is a need for advanced wound closure devices that promote faster healing and reduce infection risk.
Purpose of the Study:
- To design and develop a passive, biodegradable mechanoelectric suture.
- To investigate the mechanoelectrical properties and wound healing potential of the novel suture.
Main Methods:
- Fabrication of a multi-layer coaxial suture using poly(lactic-co-glycolic acid), polycaprolactone, and magnesium for biodegradability.
- Characterization of the suture's mechanical properties and mechanoelectrical response to movement and stretching.
- Evaluation of the suture's efficacy in accelerating wound healing and reducing infection in a preclinical setting.
Main Results:
- The developed suture exhibits excellent mechanical properties and generates electric fields upon deformation.
- The mechanoelectric suture demonstrated a 50% acceleration in wound healing compared to conventional methods.
- The device showed a reduced risk of surgical site infection.
Conclusions:
- The passive, biodegradable mechanoelectric suture represents a significant advancement over traditional suturing techniques.
- This innovative device offers a promising, clinically translatable solution for improved wound closure and healing.
- The findings support the potential of mechanoelectric stimulation via sutures as a therapeutic strategy in surgery.

