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Flexible and Stretchable PEDOT-Embedded Hybrid Substrates for Bioengineering and Sensory Applications.
Afsoon Fallahi1,2, Serena Mandla1,2,3, Thomas Kerr-Phillip4,5
1Dr. A. Fallahi, S. Mandla, Prof. J. Seo, R. O. Rodrigues, Y. A. Jodat, Dr. R. Samanipour, Prof. A. Khademhosseini, Dr. S. R. Shin, Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02139, USA, Office: (617) 768-8320,.
Researchers developed a flexible, conductive electrospun fiber mat for biomedical electronics. This robust material supports cell growth and shows reversible resistance changes when bent, ideal for advanced applications.
Area of Science:
- Biomaterials Science
- Polymer Chemistry
- Bioelectronics
Background:
- Flexible and stretchable electronics are crucial for advanced biomedical applications.
- Developing biocompatible, conductive, and mechanically robust substrates remains a challenge.
Purpose of the Study:
- To introduce a novel electrospun fiber mat as a substrate for flexible and stretchable electronic devices.
- To impart electrical conductivity and elastomeric properties to the fiber mats for biomedical use.
Main Methods:
- Fabrication of electrospun fiber mats using nitrile butadiene rubber (NBR) and poly(ethylene glycol) dimethacrylate (PEGDM).
- Interpenetration of poly(3,4-ethylenedioxythiophene) (PEDOT) to achieve electrical conductivity.
- Tunable fiber orientation (random and aligned) and mechanical property characterization.
- Cytotoxicity studies using cardiac cells.
Main Results:
- The developed mats exhibited flexibility, biocompatibility, robustness, and high electrical conductivity.
- Tunable fiber orientation (random and aligned) was achieved.
- Elastomeric mechanical properties and reversible resistance changes upon bending were observed.
- Cytotoxicity studies confirmed support for cardiac cell growth.
Conclusions:
- The flexible, conductive, and elastomeric electrospun fiber mats are suitable substrates for flexible and stretchable electronic devices.
- These materials demonstrate significant potential for tissue engineering, implantable sensors, and wearable bioelectronics.
- The study highlights a promising material platform for next-generation biomedical technologies.
