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Therapy using implanted organic bioelectronics
Amanda Jonsson1, Zhiyang Song2, David Nilsson3
1Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, SE-601 74 Norrköping, Sweden.
Science Advances
|November 25, 2015
Summary
Researchers developed an implantable device using conducting polymers for localized drug delivery. This organic electronic system effectively treated neuropathic pain in rats by delivering gamma-aminobutyric acid (GABA) with minimal side effects.
Area of Science:
- Bioelectronic Medicine
- Materials Science
- Neuroscience
Background:
- Systemic drug administration often causes side effects due to widespread distribution.
- Localized drug delivery from implanted devices offers a potential solution for targeted therapy.
- Conducting polymers enable bioelectronic interfaces for controlled therapeutic release.
Purpose of the Study:
- To demonstrate the efficacy of an implantable organic electronic device for localized therapeutic delivery.
- To investigate the potential of electrically controlled drug release for treating neuropathic pain.
- To establish a proof-of-concept for bioelectronic therapeutics in awake animal models.
Main Methods:
- Implantation of organic electronic devices onto the spinal cord of rats.
- Electrically controlled local delivery of gamma-aminobutyric acid (GABA).
- Assessment of pain response and side effects in an animal model of neuropathic pain.
Main Results:
- Significant reduction in neuropathic pain response observed with localized GABA delivery.
- Low dosage of GABA was effective, indicating high therapeutic efficiency.
- No observable side effects were reported, highlighting the safety of localized delivery.
Conclusions:
- Implantable organic electronic devices offer a viable approach for localized, electrically controlled drug delivery.
- This technology presents a promising alternative to conventional treatments for neuropathic pain.
- The study paves the way for future bioelectronic therapeutic applications in awake subjects.

