Abstract：
AIMS:To understand factors that impact solar-powered electricity generation by Rhodobacter sphaeroides in a single-chamber microbial fuel cell (MFC). METHODS AND RESULTS:The MFC used submerged platinum-coated carbon paper anodes and cathodes of the same material, in contact with atmospheric oxygen. Power was measured by monitoring voltage drop across an external resistance. Biohydrogen production and in situ hydrogen oxidation were identified as the main mechanisms for electron transfer to the MFC circuit. The nitrogen source affected MFC performance, with glutamate and nitrate-enhancing power production over ammonium. CONCLUSIONS:Power generation depended on the nature of the nitrogen source and on the availability of light. With light, the maximum point power density was 790 mW m(-2) (2.9 W m(-3)). In the dark, power output was less than 0.5 mW m(-2) (0.008 W m(-3)). Also, sustainable electrochemical activity was possible in cultures that did not receive a nitrogen source. SIGNIFICANCE AND IMPACT OF THE STUDY:We show conditions at which solar energy can serve as an alternative energy source for MFC operation. Power densities obtained with these one-chamber solar-driven MFC were comparable with densities reported in nonphotosynthetic MFC and sustainable for longer times than with previous work on two-chamber systems using photosynthetic bacteria.
journal_name
J Appl Microbioljournal_title
Journal of applied microbiologyauthors
Cho YK,Donohue TJ,Tejedor I,Anderson MA,McMahon KD,Noguera DRdoi
10.1111/j.1365-2672.2007.03580.xsubject
Has Abstractpub_date
2008-03-01 00:00:00pages
640-50issue
3eissn
1364-5072issn
1365-2672pii
JAM3580journal_volume
104pub_type
杂志文章abstract：AIMS:To investigate the in vitro antibacterial activity and antifungal mode of action of flocculosin, a cellobiose lipid produced by Pseudozyma flocculosa. METHODS AND RESULTS:When tested against clinical bacterial isolates, the compound was particularly active against Gram-positive bacteria and its effect was not mit...
journal_title：Journal of applied microbiology
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journal_title：Journal of applied microbiology
pub_type： 杂志文章
doi：10.1046/j.1365-2672.2001.01482.x
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更新日期：2017-06-01 00:00:00
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journal_title：Journal of applied microbiology
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doi：10.1111/j.1365-2672.2008.03953.x
更新日期：2008-12-01 00:00:00
abstract：AIMS:To investigate the conditions that promote the expression of cyanide-resistant respiration (CRR) in the spoilage yeasts Pichia membranifaciens and Debaryomyces hansenii. METHODS AND RESULTS:CRR was detected by sensitivity of oxygen consumption to salicylhydroxamic acid. It was absent in both yeasts in the early e...
journal_title：Journal of applied microbiology
pub_type： 杂志文章
doi：10.1046/j.1365-2672.2003.01992.x
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doi：10.1046/j.1365-2672.2002.01717.x
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更新日期：2018-10-01 00:00:00
abstract：AIMS:Chlamydia trachomatis and herpes simplex virus (HSV) are the most prevalent bacterial and viral sexually transmitted infections. Due to the chronic nature of their infections, they are able to interact with titanium-dioxide (TiO2 ) nanoparticles (NPs) applied as food additives or drug delivery vehicles. The aim of...
journal_title：Journal of applied microbiology
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更新日期：2017-11-01 00:00:00
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journal_title：Journal of applied microbiology
pub_type： 杂志文章
doi：10.1111/j.1365-2672.2007.03532.x
更新日期：2008-01-01 00:00:00
abstract：AIMS:To monitor emissions of NH(3) and N(2)O during composting and link these to ammonia oxidation rates and the community structure of ammonia oxidizing bacteria (AOB). METHODS AND RESULTS:A laboratory-scale compost reactor treating organic household waste was run for 2 months. NH(3) emissions peaked when pH started ...
journal_title：Journal of applied microbiology
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更新日期：2009-05-01 00:00:00
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journal_title：Journal of applied microbiology
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更新日期：2015-06-01 00:00:00
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journal_title：Journal of applied microbiology
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doi：10.1046/j.1365-2672.2003.01865.x
更新日期：2003-01-01 00:00:00
abstract：:A total of 21 plant-associated Serratia plymuthica strains were characterized phenotypically by their nutritional patterns, susceptibility to antibiotics, antifungal and haemolytic properties, and genotypically by denaturing gradient gel electrophoresis (DGGE) of PCR-amplified 16S rDNA, PCR fingerprints using BOX prim...
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更新日期：2000-06-01 00:00:00
