A microbial fuel cell as power supply for implantable medical devices
This study seeks a new way to provide lasting and secure power for implantable medical devices (IMDs) using a microbial fuel cell (MFC) which was proposed to be placed in human transverse colon and could utilize intestinal contents and microorganisms to generate electricity. The performance of an MFC which simulated the environmental features of transverse colon by controlling dissolved oxygen (DO) and pH values and inoculated with simulated intestinal fluid (S1F) was investigated.Stable power generation of the MFC was obtained after two months operation with open circuit voltage (OCV) of 552.2 mV,maximum power density of 73.3 mW/m~2.Moreover,the changes of environmental conditions in the chambers of the MFC did not have a significant impact based on analysis of the values of pH and DO.Further studies on internal resistance and power density showed that the MFC could generate power of 7～10 mW according to the size of intestinal surface area,which was enough for IMDs.
microbial fuel cells implantable medical devices power supply large intestine transverse colon
Y.F.,Han H.,Liu
Laboratory of Environmental Biology and Life Support Technology,School of Biological Science and Medical Engineering,Beihang University,Beijing 100191,China
国际会议
第二届中国微生物燃料电池研讨会(The 2nd Symposium on Microbial Fuel Cell in China)
北京
英文
36-37
2009-11-13（万方平台首次上网日期，不代表论文的发表时间）