Bingchuan Liu, Alyssa Weinstein, Michael Kolln et al.

Journal of Power Sources • 2015

Guangcan Zhu, Takashi Onodera, Madan Tandukar et al.

Bioresource Technology • 2013

Xing Liu, Wenguo Wu, Zhongze Gu

Journal of Power Sources • 2015

Chunhua Feng, Zhisheng Lv, Xiaoshuang Yang et al.

Phys. Chem. Chem. Phys. • 2013

The discharge of bio-electrons stored in the capacitive anode of an MFC significantly contributes to the measured power density.

Singhvi P

Journal of Bioremediation & Biodegradation • 2012

Unknown Author

Fuel Cells Bulletin • 2012

Daxing Zhang, Fan Yang, Tsutomu Shimotori et al.

Journal of Power Sources • 2012

Narendran Sekar Ramaraja P Ramasamy

Journal of Microbial & Biochemical Technology • 2012

Araceli González del Campo, Pablo Cañizares, Manuel A. Rodrigo et al.

Journal of Power Sources • 2013

Sivasankaran Ayyaru, Pournan Letchoumanane, Sangeetha Dharmalingam et al.

Journal of Power Sources • 2012

Heming Wang, Zhiyong Ren, Jae-Do Park

Journal of Power Sources • 2012

Udayarka Karra, Elizabeth Troop, Michael Curtis et al.

International Journal of Hydrogen Energy • 2015

Qing Wen, Fanying Kong, Fang Ma et al.

Journal of Power Sources • 2011

Fan Liping

International Journal of Energy and Power Engineering • 2014

Arpita Nandy, Vikash Kumar, Patit P. Kundu

Enzyme and Microbial Technology • 2013

Ravi Shankar, Prasenjit Mondal, Shri Chand

Green • 2013

Abstract In the present paper steady state models of a double chamber glucose glutamic acid microbial fuel cell (GGA-MFC) under continuous operation have been developed and solved using Matlab 2007 software. The experimental data reported in a recent literature has been used for the validation of the models. The present models give prediction on the cell voltage and cell power density with 19–44% errors, which is less (up to 20%) than the errors on the prediction of cell voltage made in some recent literature for the same MFC where the effects of the difference in pH and ionic conductivity between anodic and cathodic solutions on cell voltage were not incorporated in model equations. It also describes the changes in anodic and cathodic chamber temperature due to the increase in substrate concentration and cell current density. Temperature profile across the membrane thickness has also been studied.

Jing Cai, Ping Zheng, Yajuan Xing et al.

Journal of Power Sources • 2015

Yifeng Zhang, Yong Wang, Irini Angelidaki

Journal of Power Sources • 2015

Ali Mehdinia, Minodokht Dejaloud, Ali Jabbari

Chemical Papers • 2012

Abstract An approach for improving the power generation of a dual-chamber microbial fuel cell by using a nanostructured polyaniline (PANI)-modified glassy carbon anode was investigated. Modification of the glassy carbon anode was achieved by the electrochemical polymerisation of aniline in 1 M H2SO4 solution. The MFC reactor showed power densities of 0.082 mW cm−2 and 0.031 mW cm−2 for the nano- and microstructured PANI anode, respectively. The results from electron microscopy scanning confirmed formation of the nanostructured PANI film on the anode surface and the results from electrochemical experiments confirmed that the electrochemical activity of the anode was significantly enhanced after modification by nanostructured PANI. Electrochemical impedance spectroscopic results proved that the charge transfer would be facilitated after anode modification with nanostructured PANI.

Amit Prem Khare Rani

International Journal of Science and Research (IJSR) • 2012

Qun Ren, Guy de Roo, Bernard Witholt et al.

Microbial Cell Factories • 2008

Tal Elad, Jin Hyung Lee, Shimshon Belkin et al.

Microbial Biotechnology • 2008

Summary The coming of age of whole‐cell biosensors, combined with the continuing advances in array technologies, has prepared the ground for the next step in the evolution of both disciplines – the whole‐cell array. In the present review, we highlight the state‐of‐the‐art in the different disciplines essential for a functional bacterial array. These include the genetic engineering of the biological components, their immobilization in different polymers, technologies for live cell deposition and patterning on different types of solid surfaces, and cellular viability maintenance. Also reviewed are the types of signals emitted by the reporter cell arrays, some of the transduction methodologies for reading these signals and the mathematical approaches proposed for their analysis. Finally, we review some of the potential applications for bacterial cell arrays, and list the future needs for their maturation: a richer arsenal of high‐performance reporter strains, better methodologies for their incorporation into hardware platforms, design of appropriate detection circuits, the continuing development of dedicated algorithms for multiplex signal analysis and – most importantly – enhanced long‐term maintenance of viability and activity on the fabricated biochips.

Shuang Zhang, Zhi Hui Wang, Guo Qiang Chen

Microbial Cell Factories • 2010

Abstract Background PhaR which is a repressor protein for microbial polyhydroxyalkanoates (PHA) biosynthesis, is able to attach to bacterial PHA granules in vivo , was developed as an affinity tag for in vitro protein purification. Fusion of PhaR-tagged self-cleavable Ssp DnaB intein to the N-terminus of a target protein allowed protein purification with a pH and temperature shift. During the process, the target protein was released to the supernatant while PhaR-tagged intein was still immobilized on the PHA nanoparticles which were then separated by centrifugation. Results Fusion protein PhaR-intein-target protein was expressed in recombinant Escherichia coli . The cell lysates after sonication and centrifugation were collected and then incubated with PHA nanoparticles to allow sufficient absorption onto the PHA nanoparticles. After several washing processes, self-cleavage of intein was triggered by pH and temperature shift. As a result, the target protein was released from the particles and purified after centrifugation. As target proteins, enhanced green fluorescent protein (EGFP), maltose binding protein (MBP) and β-galactosidase (lacZ), were successfully purified using the PhaR based protein purification method. Conclusion The successful purification of EGFP, MBP and LacZ indicated the feasibility of this PhaR based in vitro purification system. Moreover, the elements used in this system can be easily obtained and prepared by users themselves, so they can set up a simple protein purification strategy by themselves according to the PhaR method, which provides another choice instead of expensive commercial protein purification systems.

Projjwal Sarkar, Subhasis Ghosh, Suman Dutta et al.

Desalination • 2009

Frank Delvigne, Mathieu Boxus, Sophie Ingels et al.

Microbial Cell Factories • 2008

Jose R Garcia, Hyung J Cha, Govind Rao et al.

Microbial Cell Factories • 2009

Abstract Background Small-scale microbial fermentations are often assumed to be homogeneous, and oxygen limitation due to inadequate micromixing is often overlooked as a potential problem. To assess the relative degree of micromixing, and hence propensity for oxygen limitation, a new cellular oxygen sensor has been developed. The oxygen responsive E. coli nitrate reductase ( nar ) promoter was used to construct an oxygen reporter plasmid (pNar-GFPuv) which allows cell-based reporting of oxygen limitation. Because there are greater than 10 9 cells in a fermentor, one can outfit a vessel with more than 10 9 sensors. Our concept was tested in high density, lab-scale (5 L), fed-batch, E. coli fermentations operated with varied mixing efficiency – one verses four impellers. Results In both cases, bioreactors were maintained identically at greater than 80% dissolved oxygen (DO) during batch phase and at approximately 20% DO during fed-batch phase. Trends for glucose consumption, biomass and DO showed nearly identical behavior. However, fermentations with only one impeller showed significantly higher GFPuv expression than those with four, indicating a higher degree of fluid segregation sufficient for cellular oxygen deprivation. As the characteristic time for GFPuv expression (approx 90 min.) is much larger than that for mixing (approx 10 s), increased specific fluorescence represents an averaged effect of oxygen limitation over time and by natural extension, over space. Conclusion Thus, the pNar-GFPuv plasmid enabled bioreactor-wide oxygen sensing in that bacterial cells served as individual recirculating sensors integrating their responses over space and time. We envision cell-based oxygen sensors may find utility in a wide variety of bioprocessing applications.

Raimon Sabaté, Alba Espargaró, Sven J Saupe et al.

Microbial Cell Factories • 2008

Yuuki Karube, Shoichiro Asayama, Mami Osoegawa et al.

Desalination and Water Treatment • 2010

A. Chwojnowski, C. Wojciechowski, K. Dudziński et al.

Desalination • 2009

Yu-Ling Li, Kuo-Lun Tung

Desalination • 2008

Sejin Kim, Sangyoup Lee, Seungkwan Hong et al.

Desalination • 2009

N. Shojaikaveh, S.N. Ashrafizadeh

Desalination and Water Treatment • 2010

Ramon Christian Eusebio, Yoon-Ho Cho, Mark Sibag et al.

Desalination and Water Treatment • 2010

Hai-feng Zhang, Bao-sheng Sun, Xin-hua Zhao et al.

Desalination and Water Treatment • 2008

Svetlana Chupakhina, Volker Kottke

Desalination • 2008

Kimball S. Roelofs, Thomas Schiestel

Desalination • 2009

A.A. Jalali, F. Mohammadi, S.N. Ashrafizadeh

Desalination • 2009

J. Sikder, C. Pereira, S. Palchoudhury et al.

Desalination • 2009

A. Netrusov, S. Abramov, E. Sadraddinova et al.

Desalination and Water Treatment • 2010

Lorenz Gubler, Günther G. Scherer

Desalination • 2009