Journal
JOURNAL OF MATERIALS CHEMISTRY B
Volume 1, Issue 31, Pages 3781-3788Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3tb20183j
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Funding
- American Chemical Society [PRF51980DN17]
- Carnegie Mellon University School of Engineering
- CMU Center for Technology Transfer and Enterprise Creation
- Pennsylvania Department of Community and Economic Development
- Innovation Works (Pittsburgh, PA)
- Department of Energy [DE-OE0000226]
- National Science Foundation [CHE-0130903, CHE-1039870]
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Flexible biodegradable electronics have the potential to serve as the centerpiece for temporary electronically active medical implants. Biodegradable electronics may exhibit many advantages over traditional chronic implants. Two important long-term goals for biodegradable electronics are (1) supplying sufficient power and (2) reducing the invasiveness of device deployment. Edible electronic devices are capable of addressing both challenges. Here, we introduce electrochemical electronic power sources that are compatible with non-invasive deployment strategies and are composed entirely of edible materials and naturally occurring precursors that are consumed in common diets. The current sources developed herein are powered by onboard sodium ion electrochemical cells. Potentials up to 0.6 V and currents in the range of 5-20 mu A can be generated routinely. These devices could serve as an enabling platform technology for edible electronics used in non-invasive sensing and stimulation of tissues within the human body.
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