Kim Young Jo, Chun Sang-Eun, Whitacre Jay, Bettinger Christopher J
Department of Materials Science and Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA.
J Mater Chem B. 2013 Aug 21;1(31):3781-3788. doi: 10.1039/c3tb20183j. Epub 2013 Mar 22.
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 μA 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.
柔性可生物降解电子器件有潜力成为临时电子活性医疗植入物的核心部件。与传统的长期植入物相比，可生物降解电子器件可能具有许多优势。可生物降解电子器件的两个重要长期目标是：（1）提供足够的电力；（2）降低设备植入的侵入性。可食用电子设备能够应对这两个挑战。在此，我们介绍了一种电化学电子电源，它与非侵入性植入策略兼容，并且完全由可食用材料和常见饮食中会消耗的天然前体组成。本文开发的电流源由机载钠离子电化学电池供电。通常可以产生高达0.6 V的电位和5 - 20 μA范围内的电流。这些器件可以作为一种使能平台技术，用于人体组织的非侵入性传感和刺激的可食用电子器件。
