Immobilization of anode-attached microbes in a microbial fuel cell.

Handle URI:
http://hdl.handle.net/10754/596792
Title:
Immobilization of anode-attached microbes in a microbial fuel cell.
Authors:
Wagner, Rachel C; Porter-Gill, Sikandar; Logan, Bruce E
Abstract:
Current-generating (exoelectrogenic) bacteria in bioelectrochemical systems (BESs) may not be culturable using standard in vitro agar-plating techniques, making isolation of new microbes a challenge. More in vivo like conditions are needed where bacteria can be grown and directly isolated on an electrode. While colonies can be developed from single cells on an electrode, the cells must be immobilized after being placed on the surface. Here we present a proof-of-concept immobilization approach that allows exoelectrogenic activity of cells on an electrode based on applying a layer of latex to hold bacteria on surfaces. The effectiveness of this procedure to immobilize particles was first demonstrated using fluorescent microspheres as bacterial analogs. The latex coating was then shown to not substantially affect the exoelectrogenic activity of well-developed anode biofilms in two different systems. A single layer of airbrushed coating did not reduce the voltage produced by a biofilm in a microbial fuel cell (MFC), and more easily applied dip-and-blot coating reduced voltage by only 11% in a microbial electrolysis cell (MEC). This latex immobilization procedure will enable future testing of single cells for exoelectrogenic activity on electrodes in BESs.
Citation:
Wagner RC, Porter-Gill S, Logan BE (2012) Immobilization of anode-attached microbes in a microbial fuel cell. AMB Express 2: 2. Available: http://dx.doi.org/10.1186/2191-0855-2-2.
Publisher:
Springer Nature
Journal:
AMB Express
KAUST Grant Number:
KUS-I1-003-13
Issue Date:
3-Jan-2012
DOI:
10.1186/2191-0855-2-2
PubMed ID:
22214379
PubMed Central ID:
PMC3311593
Type:
Article
ISSN:
2191-0855
Sponsors:
This material is based upon work supported under National Science Foundation Graduate Research Fellowships (RCW), and award KUS-I1-003-13 by King Abdullah University of Science and Technology (KAUST).
Appears in Collections:
Publications Acknowledging KAUST Support

Full metadata record

DC FieldValue Language
dc.contributor.authorWagner, Rachel Cen
dc.contributor.authorPorter-Gill, Sikandaren
dc.contributor.authorLogan, Bruce Een
dc.date.accessioned2016-02-21T08:50:47Zen
dc.date.available2016-02-21T08:50:47Zen
dc.date.issued2012-01-03en
dc.identifier.citationWagner RC, Porter-Gill S, Logan BE (2012) Immobilization of anode-attached microbes in a microbial fuel cell. AMB Express 2: 2. Available: http://dx.doi.org/10.1186/2191-0855-2-2.en
dc.identifier.issn2191-0855en
dc.identifier.pmid22214379en
dc.identifier.doi10.1186/2191-0855-2-2en
dc.identifier.urihttp://hdl.handle.net/10754/596792en
dc.description.abstractCurrent-generating (exoelectrogenic) bacteria in bioelectrochemical systems (BESs) may not be culturable using standard in vitro agar-plating techniques, making isolation of new microbes a challenge. More in vivo like conditions are needed where bacteria can be grown and directly isolated on an electrode. While colonies can be developed from single cells on an electrode, the cells must be immobilized after being placed on the surface. Here we present a proof-of-concept immobilization approach that allows exoelectrogenic activity of cells on an electrode based on applying a layer of latex to hold bacteria on surfaces. The effectiveness of this procedure to immobilize particles was first demonstrated using fluorescent microspheres as bacterial analogs. The latex coating was then shown to not substantially affect the exoelectrogenic activity of well-developed anode biofilms in two different systems. A single layer of airbrushed coating did not reduce the voltage produced by a biofilm in a microbial fuel cell (MFC), and more easily applied dip-and-blot coating reduced voltage by only 11% in a microbial electrolysis cell (MEC). This latex immobilization procedure will enable future testing of single cells for exoelectrogenic activity on electrodes in BESs.en
dc.description.sponsorshipThis material is based upon work supported under National Science Foundation Graduate Research Fellowships (RCW), and award KUS-I1-003-13 by King Abdullah University of Science and Technology (KAUST).en
dc.publisherSpringer Natureen
dc.rightsThis is an Open Access article distributed under the terms of the Creative Commons Attribution License (), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.en
dc.rights.urihttp://creativecommons.org/licenses/by/2.0en
dc.titleImmobilization of anode-attached microbes in a microbial fuel cell.en
dc.typeArticleen
dc.identifier.journalAMB Expressen
dc.identifier.pmcidPMC3311593en
dc.contributor.institutionDepartment of Civil and Environmental Engineering, 212 Sackett Building, The Pennsylvania State University, University Park, PA 16802, USAen
kaust.grant.numberKUS-I1-003-13en

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