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yangzhehao

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[求助] 文章翻译求助

Microbial fuel cells (MFCs) have gained increasing interest as a new
sustainable power source, because they are capable of degrading
organic fuels including organic wastes to harvest electricity.How-ever, the sluggish electron transfer between bacteria cells and electrode
is the main blockage to a desired power density for broad practical
applications . Up to date, most efforts in improvement of MFC
power density have been focused on nanoengineering and/or modify-ing electrode materials for high speci fic surface area and optimization
of device con figuration and/or operation modes for better mass/
electron transport. It is very challenging to signi ficantly enhance
the direct electron transfer process between bacteria cells and electrode
for high power density . We have reported that Escherichia coli
evolve to possess direct electron transfer with the supporting electrode
after a long term discharge. The evolved cells form rougher surface
with larger pores on the outer membrane than the original cells to
enhance the transport of endogenous electronic shuttles for a fast medi-ated electron transfer. Similarly, MFCs inoculated with a mixed culture
of Shewanella oneidensis MR-1 mutant library naturally select the cells
with rough surface morphology, and these enriched mutants are
impaired in cell surface polysaccharide biosynthesis. Some cationic
reagents can perforate the cell's outer membrane to have weak antibac-terial effect and have been used in drug delivery systems. In this
study, three reagents, chitosan, ethylenediaminetetraacetic acid (EDTA)and polyethyleneimine (PEI) were explored to perforate Pseudomonas
aeruginosa (P. aeruginosa ) cells, and their electron transfer process in
MFCs was further investigated.
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yangzhehao

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引用回帖:
2楼: Originally posted by 220chengeng at 2012-11-07 10:05:36
太长了,楼主先尝试自己翻译,有个别不懂的句子单独贴出来交流一下。

呵呵  好的  谢啦
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3楼2012-11-08 08:25:19
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220chengeng

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phu_grassman: 金币+1, It's really very nice of you. Welcome to our forum. 2012-11-07 13:44:32
太长了,楼主先尝试自己翻译,有个别不懂的句子单独贴出来交流一下。
2楼2012-11-07 10:05:36
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