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Chen H, Simoska O, Lim K, Grattieri M, Yuan M, Dong F, Lee YS, Beaver K, Weliwatte S, Gaffney EM, Minteer SD. Fundamentals, Applications, and Future Directions of Bioelectrocatalysis. Chem Rev 2020; 120:12903-12993. [DOI: 10.1021/acs.chemrev.0c00472] [Citation(s) in RCA: 118] [Impact Index Per Article: 29.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Hui Chen
- Department of Chemistry, University of Utah, 315 South 1400 East, RM 2020, Salt Lake City, Utah 84112, United States
| | - Olja Simoska
- Department of Chemistry, University of Utah, 315 South 1400 East, RM 2020, Salt Lake City, Utah 84112, United States
| | - Koun Lim
- Department of Chemistry, University of Utah, 315 South 1400 East, RM 2020, Salt Lake City, Utah 84112, United States
| | - Matteo Grattieri
- Department of Chemistry, University of Utah, 315 South 1400 East, RM 2020, Salt Lake City, Utah 84112, United States
| | - Mengwei Yuan
- Department of Chemistry, University of Utah, 315 South 1400 East, RM 2020, Salt Lake City, Utah 84112, United States
| | - Fangyuan Dong
- Department of Chemistry, University of Utah, 315 South 1400 East, RM 2020, Salt Lake City, Utah 84112, United States
| | - Yoo Seok Lee
- Department of Chemistry, University of Utah, 315 South 1400 East, RM 2020, Salt Lake City, Utah 84112, United States
| | - Kevin Beaver
- Department of Chemistry, University of Utah, 315 South 1400 East, RM 2020, Salt Lake City, Utah 84112, United States
| | - Samali Weliwatte
- Department of Chemistry, University of Utah, 315 South 1400 East, RM 2020, Salt Lake City, Utah 84112, United States
| | - Erin M. Gaffney
- Department of Chemistry, University of Utah, 315 South 1400 East, RM 2020, Salt Lake City, Utah 84112, United States
| | - Shelley D. Minteer
- Department of Chemistry, University of Utah, 315 South 1400 East, RM 2020, Salt Lake City, Utah 84112, United States
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Golden J, Yates MD, Halsted M, Tender L. Application of electrochemical surface plasmon resonance (ESPR) to the study of electroactive microbial biofilms. Phys Chem Chem Phys 2018; 20:25648-25656. [PMID: 30289415 DOI: 10.1039/c8cp03898h] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Electrochemical surface plasmon resonance (ESPR) monitors faradaic processes optically by the change in refractive index that occurs with a change in redox state at the electrode surface. Here we apply ESPR to investigate the anode-grown Geobacter sulfurreducens biofilm (GSB), a model system used to study electroactive microbial biofilms (EABFs) which perform electrochemical reactions using electrodes as metabolic electron acceptors or donors. A substantial body of evidence indicates that electron transfer reactions among hemes of c-type cytochromes (c-Cyt) play major roles in the extracellular electron transfer (EET) pathways that connect intracellular metabolic processes of cells in an EABF to the electrode surface. The results reported here reveal that when the potential of the electrode is changed from relatively oxidizing (0.40 V vs. SHE) to reducing (-0.55 V vs. SHE) and then back to oxidizing, 70% of c-Cyt residing closest to the biofilm/electrode (within hundreds of nm from the electrode surface) appear to remain trapped in the reduced state, requiring as long as 12 hours to be re-oxidized. c-Cyt storing electrons cannot contribute to EET, yet turnover current resulting from cellular oxidation of acetate coupled with EET to the electrode surface is unaffected. This suggests that a relatively small fraction of c-Cyt residing closest to the biofilm/electrode interface is involved in EET while the majority store electrons. The results also reveal that biomass density at the biofilm/electrode interface increases rapidly during lag phase, reaching its maximum value at the onset of exponential biofilm growth when turnover current begins to rapidly increase.
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Affiliation(s)
- Joel Golden
- Center for Bio/Molecular Science and Engineering, Naval Research Laboratory, Washington DC, 20375, USA.
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Yates MD, Barr Engel S, Eddie BJ, Lebedev N, Malanoski AP, Tender LM. Redox-gradient driven electron transport in a mixed community anodic biofilm. FEMS Microbiol Ecol 2018; 94:4990946. [DOI: 10.1093/femsec/fiy081] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Accepted: 05/01/2018] [Indexed: 11/13/2022] Open
Affiliation(s)
- Matthew D Yates
- Center for Bio/Molecular Science and Engineering, Naval Research Laboratory, 4555 Overlook Ave SW, Washington, DC, 20375, USA
| | - Sarah Barr Engel
- Department of Civil and Environmental Engineering, Cornell University, 220 Hollister Hall, Ithaca, NY, 14853, USA
| | - Brian J Eddie
- Center for Bio/Molecular Science and Engineering, Naval Research Laboratory, 4555 Overlook Ave SW, Washington, DC, 20375, USA
| | - Nikolai Lebedev
- Center for Bio/Molecular Science and Engineering, Naval Research Laboratory, 4555 Overlook Ave SW, Washington, DC, 20375, USA
| | - Anthony P Malanoski
- Center for Bio/Molecular Science and Engineering, Naval Research Laboratory, 4555 Overlook Ave SW, Washington, DC, 20375, USA
| | - Leonard M Tender
- Center for Bio/Molecular Science and Engineering, Naval Research Laboratory, 4555 Overlook Ave SW, Washington, DC, 20375, USA
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4
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Microbial nanowires - Electron transport and the role of synthetic analogues. Acta Biomater 2018; 69:1-30. [PMID: 29357319 DOI: 10.1016/j.actbio.2018.01.007] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Revised: 01/07/2018] [Accepted: 01/09/2018] [Indexed: 02/07/2023]
Abstract
Electron transfer is central to cellular life, from photosynthesis to respiration. In the case of anaerobic respiration, some microbes have extracellular appendages that can be utilised to transport electrons over great distances. Two model organisms heavily studied in this arena are Shewanella oneidensis and Geobacter sulfurreducens. There is some debate over how, in particular, the Geobacter sulfurreducens nanowires (formed from pilin nanofilaments) are capable of achieving the impressive feats of natural conductivity that they display. In this article, we outline the mechanisms of electron transfer through delocalised electron transport, quantum tunnelling, and hopping as they pertain to biomaterials. These are described along with existing examples of the different types of conductivity observed in natural systems such as DNA and proteins in order to provide context for understanding the complexities involved in studying the electron transport properties of these unique nanowires. We then introduce some synthetic analogues, made using peptides, which may assist in resolving this debate. Microbial nanowires and the synthetic analogues thereof are of particular interest, not just for biogeochemistry, but also for the exciting potential bioelectronic and clinical applications as covered in the final section of the review. STATEMENT OF SIGNIFICANCE Some microbes have extracellular appendages that transport electrons over vast distances in order to respire, such as the dissimilatory metal-reducing bacteria Geobacter sulfurreducens. There is significant debate over how G. sulfurreducens nanowires are capable of achieving the impressive feats of natural conductivity that they display: This mechanism is a fundamental scientific challenge, with important environmental and technological implications. Through outlining the techniques and outcomes of investigations into the mechanisms of such protein-based nanofibrils, we provide a platform for the general study of the electronic properties of biomaterials. The implications are broad-reaching, with fundamental investigations into electron transfer processes in natural and biomimetic materials underway. From these studies, applications in the medical, energy, and IT industries can be developed utilising bioelectronics.
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Yates MD, Eddie BJ, Lebedev N, Kotloski NJ, Strycharz-Glaven SM, Tender LM. On the relationship between long-distance and heterogeneous electron transfer in electrode-grown Geobacter sulfurreducens biofilms. Bioelectrochemistry 2018; 119:111-118. [DOI: 10.1016/j.bioelechem.2017.09.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2017] [Revised: 09/12/2017] [Accepted: 09/14/2017] [Indexed: 02/05/2023]
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6
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Zhang X, Philips J, Roume H, Guo K, Rabaey K, Prévoteau A. Rapid and Quantitative Assessment of Redox Conduction Across Electroactive Biofilms by using Double Potential Step Chronoamperometry. ChemElectroChem 2017. [DOI: 10.1002/celc.201600853] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Xu Zhang
- Center for Microbial Ecology and Technology (cmet); Ghent University; Coupure Links 653 9000 Ghent Belgium
| | - Jo Philips
- Center for Microbial Ecology and Technology (cmet); Ghent University; Coupure Links 653 9000 Ghent Belgium
| | - Hugo Roume
- Center for Microbial Ecology and Technology (cmet); Ghent University; Coupure Links 653 9000 Ghent Belgium
- MetaGenoPolis; INRA; Université Paris-Saclay Domaine de Vilvert; Bâtiment 325 78350 Jouy-en-Josas France
| | - Kun Guo
- Center for Microbial Ecology and Technology (cmet); Ghent University; Coupure Links 653 9000 Ghent Belgium
| | - Korneel Rabaey
- Center for Microbial Ecology and Technology (cmet); Ghent University; Coupure Links 653 9000 Ghent Belgium
| | - Antonin Prévoteau
- Center for Microbial Ecology and Technology (cmet); Ghent University; Coupure Links 653 9000 Ghent Belgium
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7
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Anodic biofilms as the interphase for electroactive bacterial growth on carbon veil. Biointerphases 2016; 11:031013. [PMID: 27609094 DOI: 10.1116/1.4962264] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The structure and activity of electrochemically active biofilms (EABs) are usually investigated on flat electrodes. However, real world applications such as wastewater treatment and bioelectrosynthesis require tridimensional electrodes to increase surface area and facilitate EAB attachment. The structure and activity of thick EABs grown on high surface area electrodes are difficult to characterize with electrochemical and microscopy methods. Here, the authors adopt a stacked electrode configuration to simulate the high surface and the tridimensional structure of an electrode for large-scale EAB applications. Each layer of the stacked electrode is independently characterized using confocal laser scanning microscopy (CLSM) and digital image processing. Shewanella oneidensis MR-1 biofilm on stacked carbon veil electrodes is grown under constant oxidative potentials (0, +200, and +400 mV versus Ag/AgCl) until a stable current output is obtained. The textural, aerial, and volumetric parameters extracted from CLSM images allow tracking of the evolution of morphological properties within the stacked electrodes. The electrode layers facing the bulk liquid show higher biovolumes compared with the inner layer of the stack. The electrochemical performance of S. oneidensis MR-1 is directly linked to the overall biofilm volume as well as connectivity between cell clusters.
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Biteen JS, Blainey PC, Cardon ZG, Chun M, Church GM, Dorrestein PC, Fraser SE, Gilbert JA, Jansson JK, Knight R, Miller JF, Ozcan A, Prather KA, Quake SR, Ruby EG, Silver PA, Taha S, van den Engh G, Weiss PS, Wong GCL, Wright AT, Young TD. Tools for the Microbiome: Nano and Beyond. ACS NANO 2016; 10:6-37. [PMID: 26695070 DOI: 10.1021/acsnano.5b07826] [Citation(s) in RCA: 94] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
The microbiome presents great opportunities for understanding and improving the world around us and elucidating the interactions that compose it. The microbiome also poses tremendous challenges for mapping and manipulating the entangled networks of interactions among myriad diverse organisms. Here, we describe the opportunities, technical needs, and potential approaches to address these challenges, based on recent and upcoming advances in measurement and control at the nanoscale and beyond. These technical needs will provide the basis for advancing the largely descriptive studies of the microbiome to the theoretical and mechanistic understandings that will underpin the discipline of microbiome engineering. We anticipate that the new tools and methods developed will also be more broadly useful in environmental monitoring, medicine, forensics, and other areas.
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Affiliation(s)
- Julie S Biteen
- Department of Chemistry, University of Michigan , Ann Arbor, Michigan 48109, United States
| | - Paul C Blainey
- Department of Biological Engineering, Massachusetts Institute of Technology , and Broad Institute of MIT and Harvard, Cambridge, Massachusetts 02138, United States
| | - Zoe G Cardon
- The Ecosystems Center, Marine Biological Laboratory , Woods Hole, Massachusetts 02543-1015, United States
| | - Miyoung Chun
- The Kavli Foundation , Oxnard, California 93030, United States
| | - George M Church
- Wyss Institute for Biologically Inspired Engineering and Biophysics Program, Harvard University , Boston, Massachusetts 02115, United States
| | | | - Scott E Fraser
- Translational Imaging Center, University of Southern California , Molecular and Computational Biology, Los Angeles, California 90089, United States
| | - Jack A Gilbert
- Institute for Genomic and Systems Biology, Argonne National Laboratory , Argonne, Illinois 60439, United States
- Department of Ecology and Evolution and Department of Surgery, University of Chicago , Chicago, Illinois 60637, United States
| | - Janet K Jansson
- Earth and Biological Sciences Division, Pacific Northwest National Laboratory , Richland, Washington 99352, United States
| | | | | | | | | | | | - Edward G Ruby
- Kewalo Marine Laboratory, University of Hawaii-Manoa , Honolulu, Hawaii 96813, United States
| | - Pamela A Silver
- Wyss Institute for Biologically Inspired Engineering and Biophysics Program, Harvard University , Boston, Massachusetts 02115, United States
| | - Sharif Taha
- The Kavli Foundation , Oxnard, California 93030, United States
| | - Ger van den Engh
- Center for Marine Cytometry , Concrete, Washington 98237, United States
- Instituto Milenio de Oceanografía, Universidad de Concepción , Concepción, Chile
| | | | | | - Aaron T Wright
- Earth and Biological Sciences Division, Pacific Northwest National Laboratory , Richland, Washington 99352, United States
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Virdis B, Millo D, Donose BC, Lu Y, Batstone DJ, Krömer JO. Analysis of electron transfer dynamics in mixed community electroactive microbial biofilms. RSC Adv 2016. [DOI: 10.1039/c5ra15676a] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Electrochemically active microbial biofilms are capable to produce electric current when grown onto electrodes. This work investigates the dynamics of electron transfer inside the biofilm as well as at the biofilm/electrode interface.
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Affiliation(s)
- Bernardino Virdis
- The University of Queensland
- Centre for Microbial Electrochemical Systems (CEMES)
- Brisbane
- Australia
- The University of Queensland
| | - Diego Millo
- Biomolecular Spectroscopy/LaserLaB Amsterdam
- Vrije Universiteit Amsterdam
- NL-1081 HV Amsterdam
- The Netherlands
| | - Bogdan C. Donose
- The University of Queensland
- Centre for Microbial Electrochemical Systems (CEMES)
- Brisbane
- Australia
- The University of Queensland
| | - Yang Lu
- The University of Queensland
- Advanced Water Management Centre (AWMC)
- Brisbane
- Australia
| | - Damien J. Batstone
- The University of Queensland
- Advanced Water Management Centre (AWMC)
- Brisbane
- Australia
| | - Jens O. Krömer
- The University of Queensland
- Centre for Microbial Electrochemical Systems (CEMES)
- Brisbane
- Australia
- The University of Queensland
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Korth B, Rosa LF, Harnisch F, Picioreanu C. A framework for modeling electroactive microbial biofilms performing direct electron transfer. Bioelectrochemistry 2015; 106:194-206. [DOI: 10.1016/j.bioelechem.2015.03.010] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Revised: 03/24/2015] [Accepted: 03/30/2015] [Indexed: 01/01/2023]
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Yates MD, Golden JP, Roy J, Strycharz-Glaven SM, Tsoi S, Erickson JS, El-Naggar MY, Calabrese Barton S, Tender LM. Thermally activated long range electron transport in living biofilms. Phys Chem Chem Phys 2015; 17:32564-70. [PMID: 26611733 DOI: 10.1039/c5cp05152e] [Citation(s) in RCA: 77] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Microbial biofilms grown utilizing electrodes as metabolic electron acceptors or donors are a new class of biomaterials with distinct electronic properties. Here we report that electron transport through living electrode-grown Geobacter sulfurreducens biofilms is a thermally activated process with incoherent redox conductivity. The temperature dependency of this process is consistent with electron-transfer reactions involving hemes of c-type cytochromes known to play important roles in G. sulfurreducens extracellular electron transport. While incoherent redox conductivity is ubiquitous in biological systems at molecular-length scales, it is unprecedented over distances it appears to occur through living G. sulfurreducens biofilms, which can exceed 100 microns in thickness.
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Affiliation(s)
- Matthew D Yates
- Center for Bio/Molecular Science and Engineering, Naval Research Laboratory, Washington, DC 20375, USA.
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12
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Lebedev N, Mahmud S, Griva I, Blom A, Tender LM. On the electron transfer through Geobacter sulfurreducens
PilA protein. ACTA ACUST UNITED AC 2015. [DOI: 10.1002/polb.23809] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Nikolai Lebedev
- Center for Bio-Molecular Science and Engineering; Naval Research Laboratory; Washington DC 20375
| | - Syed Mahmud
- Center for Bio-Molecular Science and Engineering; Naval Research Laboratory; Washington DC 20375
| | - Igor Griva
- Department of Mathematical Sciences and Computational Material Science Center George Mason University; Fairfax Virginia 22030
| | - Anders Blom
- QuantumWise A/S; Lersø Parkallé 107 Copenhagen DK-2100 Denmark
| | - Leonard M. Tender
- Center for Bio-Molecular Science and Engineering; Naval Research Laboratory; Washington DC 20375
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