1
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Sahin S, Lemaire ON, Belhamri M, Kurth JM, Welte CU, Wagner T, Milton RD. Bioelectrocatalytic CO 2 Reduction by Mo-Dependent Formylmethanofuran Dehydrogenase. Angew Chem Int Ed Engl 2023; 62:e202311981. [PMID: 37712590 DOI: 10.1002/anie.202311981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 09/13/2023] [Accepted: 09/15/2023] [Indexed: 09/16/2023]
Abstract
Massive efforts are invested in developing innovative CO2 -sequestration strategies to counter climate change and transform CO2 into higher-value products. CO2 -capture by reduction is a chemical challenge, and attention is turned toward biological systems that selectively and efficiently catalyse this reaction under mild conditions and in aqueous solvents. While a few reports have evaluated the effectiveness of isolated bacterial formate dehydrogenases as catalysts for the reversible electrochemical reduction of CO2 , it is imperative to explore other enzymes among the natural reservoir of potential models that might exhibit higher turnover rates or preferential directionality for the reductive reaction. Here, we present electroenzymatic catalysis of formylmethanofuran dehydrogenase, a CO2 -reducing-and-fixing biomachinery isolated from a thermophilic methanogen, which was deposited on a graphite rod electrode to enable direct electron transfer for electroenzymatic CO2 reduction. The gas is reduced with a high Faradaic efficiency (109±1 %), where a low affinity for formate prevents its electrochemical reoxidation and favours formate accumulation. These properties make the enzyme an excellent tool for electroenzymatic CO2 -fixation and inspiration for protein engineering that would be beneficial for biotechnological purposes to convert the greenhouse gas into stable formate that can subsequently be safely stored, transported, and used for power generation without energy loss.
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Affiliation(s)
- Selmihan Sahin
- University of Geneva, Department of Inorganic and Analytical Chemistry, Sciences II, Quai Ernest-Ansermet 30, 1211, Geneva 4, Switzerland
- Department of Chemistry, Faculty of Arts and Sciences, Suleyman Demirel University, Cunur, 32260, Isparta, Turkiye
| | - Olivier N Lemaire
- Max Planck Institute for Marine Microbiology, Celsiusstraße 1, 28359, Bremen, Germany
| | - Mélissa Belhamri
- Max Planck Institute for Marine Microbiology, Celsiusstraße 1, 28359, Bremen, Germany
| | - Julia M Kurth
- Department of Microbiology, Institute for Water and Wetland Research, Radboud University, Heyendaalseweg 135, 6525 AJ, Nijmegen, Netherlands
- Microcosm Earth Center - Philipps-Universität Marburg & Max Planck Institute for Terrestrial Microbiology, Hans-Meerwein-Str. 4, 35032, Marburg, Germany
| | - Cornelia U Welte
- Department of Microbiology, Institute for Water and Wetland Research, Radboud University, Heyendaalseweg 135, 6525 AJ, Nijmegen, Netherlands
| | - Tristan Wagner
- Max Planck Institute for Marine Microbiology, Celsiusstraße 1, 28359, Bremen, Germany
| | - Ross D Milton
- University of Geneva, Department of Inorganic and Analytical Chemistry, Sciences II, Quai Ernest-Ansermet 30, 1211, Geneva 4, Switzerland
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2
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Sun A, Liu X, Zhang S, Yang Q, Huang S, Zhang N. Enhancing Nitrogen Removal Efficiency and Anammox Metabolism in Microbial Electrolysis Cell Coupled Anammox Through Different Voltage Application. BIORESOURCE TECHNOLOGY 2023:129283. [PMID: 37277003 DOI: 10.1016/j.biortech.2023.129283] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Revised: 05/30/2023] [Accepted: 06/01/2023] [Indexed: 06/07/2023]
Abstract
The slow growth and difficulty in cultivating anammox bacteria limit the rapid start-up of anammox process and effective microbial enrichment. In this study, microbial electrolysis cell (MEC) was coupled with anammox to investigate the effects of different applying voltage methods on substrate removal efficiency and rates, microbial community structure, anammox metabolism and metabolic pathways. The results showed that applying voltage not only improved NH4+-N removal efficiency and removal rates, but also promoted electron transfer efficiency, key enzyme activity and extracellular polymeric substances (EPS) secretion in the systems. Step-up voltage was more conducive to the growth of Candidatus_Kuenenia in the cathode, which promoted the rapid start-up of anammox and treating wastewater with low ammonia concentration. The main metabolic pathway in step-up voltage operation was hydrazine to nitrogen, while in constant voltage operation was hydroxylamine oxidation pathway. These findings provide a new insight into the enhancement and operation of anammox system.
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Affiliation(s)
- Anran Sun
- Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China
| | - Xiuhong Liu
- Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China.
| | - Shiyong Zhang
- National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Beijing University of Technology, Beijing 100124, China
| | - Qing Yang
- National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Beijing University of Technology, Beijing 100124, China
| | - Songqing Huang
- Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China
| | - Nan Zhang
- Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China
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3
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Ruiz-Rodríguez MA, Cooper CD, Rocchia W, Casalegno M, López de los Santos Y, Raos G. Modeling of the Electrostatic Interaction and Catalytic Activity of [NiFe] Hydrogenases on a Planar Electrode. J Phys Chem B 2022; 126:8777-8790. [PMID: 36269122 PMCID: PMC9639099 DOI: 10.1021/acs.jpcb.2c05371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Hydrogenases are a group of enzymes that have caught the interest of researchers in renewable energies, due to their ability to catalyze the redox reaction of hydrogen. The exploitation of hydrogenases in electrochemical devices requires their immobilization on the surface of suitable electrodes, such as graphite. The orientation of the enzyme on the electrode is important to ensure a good flux of electrons to the catalytic center, through an array of iron-sulfur clusters. Here we present a computational approach to determine the possible orientations of a [NiFe] hydrogenase (PDB 1e3d) on a planar electrode, as a function of pH, salinity, and electrode potential. The calculations are based on the solution of the linearized Poisson-Boltzmann equation, using the PyGBe software. The results reveal that electrostatic interactions do not truly immobilize the enzyme on the surface of the electrode, but there is instead a dynamic equilibrium between different orientations. Nonetheless, after averaging over all thermally accessible orientations, we find significant differences related to the solution's salinity and pH, while the effect of the electrode potential is relatively weak. We also combine models for the protein adsoption-desorption equilibria and for the electron transfer between the proteins and the electrode to arrive at a prediction of the electrode's activity as a function of the enzyme concentration.
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Affiliation(s)
| | - Christopher D. Cooper
- Department
of Mechanical Engineering and Centro Científico Tecnológico
de Valparaíso, Universidad Técnica
Federico Santa María, Valparaíso, 2340000, Chile
| | - Walter Rocchia
- CONCEPT
Lab, Istituto Italiano di Tecnologia, 16163Genova, Italy
| | - Mosè Casalegno
- Dipartimento
di Chimica, Materiali e Ingegneria Chimica “G. Natta”, Politecnico di Milano, 20133Milano, Italy
| | - Yossef López de los Santos
- Centre
Armand-Frappier Santé, Biotechnologie, Institut national de
la recherche scientifique (INRS), Université
du Québec, Laval, QuébecHV7 1B7, Canada
| | - Guido Raos
- Dipartimento
di Chimica, Materiali e Ingegneria Chimica “G. Natta”, Politecnico di Milano, 20133Milano, Italy,
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4
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Badiani VM, Cobb SJ, Wagner A, Oliveira AR, Zacarias S, Pereira IAC, Reisner E. Elucidating Film Loss and the Role of Hydrogen Bonding of Adsorbed Redox Enzymes by Electrochemical Quartz Crystal Microbalance Analysis. ACS Catal 2022; 12:1886-1897. [PMID: 35573129 PMCID: PMC9097293 DOI: 10.1021/acscatal.1c04317] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 12/13/2021] [Indexed: 12/17/2022]
Abstract
![]()
The immobilization of redox enzymes
on electrodes enables the efficient
and selective electrocatalysis of useful reactions such as the reversible
interconversion of dihydrogen (H2) to protons (H+) and formate to carbon dioxide (CO2) with hydrogenase
(H2ase) and formate dehydrogenase (FDH), respectively.
However, their immobilization on electrodes to produce electroactive
protein films for direct electron transfer (DET) at the protein–electrode
interface is not well understood, and the reasons for their activity
loss remain vague, limiting their performance often to hour timescales.
Here, we report the immobilization of [NiFeSe]-H2ase and
[W]-FDH from Desulfovibrio vulgaris Hildenborough on a range of charged and neutral self-assembled monolayer
(SAM)-modified gold electrodes with varying hydrogen bond (H-bond)
donor capabilities. The key factors dominating the activity and stability
of the immobilized enzymes are determined using protein film voltammetry
(PFV), chronoamperometry (CA), and electrochemical quartz crystal
microbalance (E-QCM) analysis. Electrostatic and H-bonding interactions
are resolved, with electrostatic interactions responsible for enzyme
orientation while enzyme desorption is strongly limited when H-bonding
is present at the enzyme–electrode interface. Conversely, enzyme
stability is drastically reduced in the absence of H-bonding, and
desorptive enzyme loss is confirmed as the main reason for activity
decay by E-QCM during CA. This study provides insights into the possible
reasons for the reduced activity of immobilized redox enzymes and
the role of film loss, particularly H-bonding, in stabilizing bioelectrode
performance, promoting avenues for future improvements in bioelectrocatalysis.
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Affiliation(s)
- Vivek M. Badiani
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K
- Cambridge Graphene Centre, University of Cambridge, Cambridge CB3 0FA, U.K
| | - Samuel J. Cobb
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K
| | - Andreas Wagner
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K
| | - Ana Rita Oliveira
- Instituto de Tecnologia Química e Biológica António Xavier (ITQB NOVA), Universidade NOVA de Lisboa, Av. da República, 2780-157 Oeiras, Portugal
| | - Sónia Zacarias
- Instituto de Tecnologia Química e Biológica António Xavier (ITQB NOVA), Universidade NOVA de Lisboa, Av. da República, 2780-157 Oeiras, Portugal
| | - Inês A. C. Pereira
- Instituto de Tecnologia Química e Biológica António Xavier (ITQB NOVA), Universidade NOVA de Lisboa, Av. da República, 2780-157 Oeiras, Portugal
| | - Erwin Reisner
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K
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5
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High electrochemical stability of hyperthermophilic archaeal multicopper enzyme adsorbed on gold electrodes compared to fungal laccase. Electrochem commun 2022. [DOI: 10.1016/j.elecom.2022.107222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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6
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Haque SU, Duteanu N, Ciocan S, Nasar A. A review: Evolution of enzymatic biofuel cells. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 298:113483. [PMID: 34391107 DOI: 10.1016/j.jenvman.2021.113483] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 07/04/2021] [Accepted: 08/03/2021] [Indexed: 06/13/2023]
Abstract
Ever-growing demands for energy, the unsustainability of fossil fuel due to its scarcity and massive impact on global economies and the environment, have encouraged the research on alternative power sources to work upon for the governments, companies, and scientists across the world. Enzymatic biofuel cells (eBFCs) is one category of fuel cell that can harvest energy from biological moieties and has the future to be used as an alternative source of energy. The aim of this review is to summarize the background and state-of-the-art in the field of eBFCs. This review article will be very beneficial for a wide audience including students and new researchers in the field. A part of the paper summarized the challenges in the preparation of anode and cathode and the involvement of nanomaterials and conducting polymers to construct the effective bioelectrodes. It will provide an insight for the researchers working in this challenging field. Furthermore, various applications of eBFCs in implantable power devices, tiny electronic gadgets, and self powered biosensors are reported. This review article explains the development in the area of eBFCs for several years from its origin to growth systematically. It reveals the strategies that have been taken for the improvements required for the better electrochemical performance and operational stability of eBFCs. It also mentions the challenges in this field that will require proper attention so that the eBFCs can be utilized commercially in the future. The review article is written and structurized in a way so that it can provide a decent background of eBFCs to its reader. It will definitely help in enhancing the interest of reader in eBFCs.
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Affiliation(s)
- Sufia Ul Haque
- Advanced Functional Materials Laboratory, Department of Applied Chemistry, Faculty of Engineering and Technology, Aligarh Muslim University, Aligarh, 202002, India.
| | - Narcis Duteanu
- Faculty of Industrial Chemistry and Environmental Engineering, University of Politehnica, Timisoara, Romania.
| | - Stefania Ciocan
- Faculty of Industrial Chemistry and Environmental Engineering, University of Politehnica, Timisoara, Romania.
| | - Abu Nasar
- Advanced Functional Materials Laboratory, Department of Applied Chemistry, Faculty of Engineering and Technology, Aligarh Muslim University, Aligarh, 202002, India.
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7
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Yu S, Myung NV. Recent Advances in the Direct Electron Transfer-Enabled Enzymatic Fuel Cells. Front Chem 2021; 8:620153. [PMID: 33644003 PMCID: PMC7902792 DOI: 10.3389/fchem.2020.620153] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Accepted: 12/09/2020] [Indexed: 12/16/2022] Open
Abstract
Direct electron transfer (DET), which requires no mediator to shuttle electrons from enzyme active site to the electrode surface, minimizes complexity caused by the mediator and can further enable miniaturization for biocompatible and implantable devices. However, because the redox cofactors are typically deeply embedded in the protein matrix of the enzymes, electrons generated from oxidation reaction cannot easily transfer to the electrode surface. In this review, methods to improve the DET rate for enhancement of enzymatic fuel cell performances are summarized, with a focus on the more recent works (past 10 years). Finally, progress on the application of DET-enabled EFC to some biomedical and implantable devices are reported.
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Affiliation(s)
| | - Nosang V. Myung
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, IN, United States
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8
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Chen H, Dong F, Minteer SD. The progress and outlook of bioelectrocatalysis for the production of chemicals, fuels and materials. Nat Catal 2020. [DOI: 10.1038/s41929-019-0408-2] [Citation(s) in RCA: 105] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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9
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Hitaishi VP, Clément R, Quattrocchi L, Parent P, Duché D, Zuily L, Ilbert M, Lojou E, Mazurenko I. Interplay between Orientation at Electrodes and Copper Activation of Thermus thermophilus Laccase for O2 Reduction. J Am Chem Soc 2019; 142:1394-1405. [DOI: 10.1021/jacs.9b11147] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Vivek Pratap Hitaishi
- Aix Marseille Univ, CNRS, BIP UMR 7281, 31 Chemin Aiguier, CS 70071, 13402 Marseille, Cedex 09, France
- Aix Marseille Univ, CNRS, IMM FR 3479, 31 Chemin Aiguier, CS 70071, 13402 Marseille, Cedex 09, France
| | - Romain Clément
- Aix Marseille Univ, CNRS, BIP UMR 7281, 31 Chemin Aiguier, CS 70071, 13402 Marseille, Cedex 09, France
- Aix Marseille Univ, CNRS, IMM FR 3479, 31 Chemin Aiguier, CS 70071, 13402 Marseille, Cedex 09, France
| | - Ludovica Quattrocchi
- Aix Marseille Univ, CNRS, BIP UMR 7281, 31 Chemin Aiguier, CS 70071, 13402 Marseille, Cedex 09, France
- Aix Marseille Univ, CNRS, IMM FR 3479, 31 Chemin Aiguier, CS 70071, 13402 Marseille, Cedex 09, France
| | - Philippe Parent
- Aix Marseille Univ, CNRS, CINAM UMR 7325, Campus de Luminy, 13288 Marseille, Cedex 09, France
| | - David Duché
- Aix Marseille Univ, Université de Toulon, CNRS, IM2NP UMR 7334, 13397 Marseille, France
| | - Lisa Zuily
- Aix Marseille Univ, CNRS, BIP UMR 7281, 31 Chemin Aiguier, CS 70071, 13402 Marseille, Cedex 09, France
- Aix Marseille Univ, CNRS, IMM FR 3479, 31 Chemin Aiguier, CS 70071, 13402 Marseille, Cedex 09, France
| | - Marianne Ilbert
- Aix Marseille Univ, CNRS, BIP UMR 7281, 31 Chemin Aiguier, CS 70071, 13402 Marseille, Cedex 09, France
- Aix Marseille Univ, CNRS, IMM FR 3479, 31 Chemin Aiguier, CS 70071, 13402 Marseille, Cedex 09, France
| | - Elisabeth Lojou
- Aix Marseille Univ, CNRS, BIP UMR 7281, 31 Chemin Aiguier, CS 70071, 13402 Marseille, Cedex 09, France
- Aix Marseille Univ, CNRS, IMM FR 3479, 31 Chemin Aiguier, CS 70071, 13402 Marseille, Cedex 09, France
| | - Ievgen Mazurenko
- Aix Marseille Univ, CNRS, BIP UMR 7281, 31 Chemin Aiguier, CS 70071, 13402 Marseille, Cedex 09, France
- Aix Marseille Univ, CNRS, IMM FR 3479, 31 Chemin Aiguier, CS 70071, 13402 Marseille, Cedex 09, France
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10
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Xiao X, Xia HQ, Wu R, Bai L, Yan L, Magner E, Cosnier S, Lojou E, Zhu Z, Liu A. Tackling the Challenges of Enzymatic (Bio)Fuel Cells. Chem Rev 2019; 119:9509-9558. [PMID: 31243999 DOI: 10.1021/acs.chemrev.9b00115] [Citation(s) in RCA: 177] [Impact Index Per Article: 35.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The ever-increasing demands for clean and sustainable energy sources combined with rapid advances in biointegrated portable or implantable electronic devices have stimulated intensive research activities in enzymatic (bio)fuel cells (EFCs). The use of renewable biocatalysts, the utilization of abundant green, safe, and high energy density fuels, together with the capability of working at modest and biocompatible conditions make EFCs promising as next generation alternative power sources. However, the main challenges (low energy density, relatively low power density, poor operational stability, and limited voltage output) hinder future applications of EFCs. This review aims at exploring the underlying mechanism of EFCs and providing possible practical strategies, methodologies and insights to tackle these issues. First, this review summarizes approaches in achieving high energy densities in EFCs, particularly, employing enzyme cascades for the deep/complete oxidation of fuels. Second, strategies for increasing power densities in EFCs, including increasing enzyme activities, facilitating electron transfers, employing nanomaterials, and designing more efficient enzyme-electrode interfaces, are described. The potential of EFCs/(super)capacitor combination is discussed. Third, the review evaluates a range of strategies for improving the stability of EFCs, including the use of different enzyme immobilization approaches, tuning enzyme properties, designing protective matrixes, and using microbial surface displaying enzymes. Fourth, approaches for the improvement of the cell voltage of EFCs are highlighted. Finally, future developments and a prospective on EFCs are envisioned.
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Affiliation(s)
- Xinxin Xiao
- Institute for Biosensing, and College of Life Sciences , Qingdao University , 308 Ningxia Road , Qingdao 266071 , China.,Department of Chemical Sciences and Bernal Institute , University of Limerick , Limerick V94 T9PX , Ireland
| | - Hong-Qi Xia
- Institute for Biosensing, and College of Life Sciences , Qingdao University , 308 Ningxia Road , Qingdao 266071 , China
| | - Ranran Wu
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences , 32 West seventh Road, Tianjin Airport Economic Area , Tianjin 300308 , China
| | - Lu Bai
- Institute for Biosensing, and College of Life Sciences , Qingdao University , 308 Ningxia Road , Qingdao 266071 , China
| | - Lu Yan
- Institute for Biosensing, and College of Life Sciences , Qingdao University , 308 Ningxia Road , Qingdao 266071 , China
| | - Edmond Magner
- Department of Chemical Sciences and Bernal Institute , University of Limerick , Limerick V94 T9PX , Ireland
| | - Serge Cosnier
- Université Grenoble-Alpes , DCM UMR 5250, F-38000 Grenoble , France.,Département de Chimie Moléculaire , UMR CNRS, DCM UMR 5250, F-38000 Grenoble , France
| | - Elisabeth Lojou
- Aix Marseille Univ, CNRS, BIP, Bioénergétique et Ingénierie des Protéines UMR7281 , Institut de Microbiologie de la Méditerranée, IMM , FR 3479, 31, chemin Joseph Aiguier 13402 Marseille , Cedex 20 , France
| | - Zhiguang Zhu
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences , 32 West seventh Road, Tianjin Airport Economic Area , Tianjin 300308 , China
| | - Aihua Liu
- Institute for Biosensing, and College of Life Sciences , Qingdao University , 308 Ningxia Road , Qingdao 266071 , China.,College of Chemistry & Chemical Engineering , Qingdao University , 308 Ningxia Road , Qingdao 266071 , China.,School of Pharmacy, Medical College , Qingdao University , Qingdao 266021 , China
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11
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Hitaishi VP, Mazurenko I, Harb M, Clément R, Taris M, Castano S, Duché D, Lecomte S, Ilbert M, de Poulpiquet A, Lojou E. Electrostatic-Driven Activity, Loading, Dynamics, and Stability of a Redox Enzyme on Functionalized-Gold Electrodes for Bioelectrocatalysis. ACS Catal 2018. [DOI: 10.1021/acscatal.8b03443] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | - Ievgen Mazurenko
- School of Biomedical Sciences, University of Leeds, LS2 9JT Leeds, United Kingdom
| | - Malek Harb
- Aix-Marseille Univ, CNRS, BIP, UMR 7281, 31 Chemin Aiguier, 13009 Marseille, France
| | - Romain Clément
- Aix-Marseille Univ, CNRS, BIP, UMR 7281, 31 Chemin Aiguier, 13009 Marseille, France
| | - Marion Taris
- Institute for Chemistry and Biology of Membrane and Nano-objects, Allée Geoffroy St. Hilaire, 33600 Pessac, France
| | - Sabine Castano
- Institute for Chemistry and Biology of Membrane and Nano-objects, Allée Geoffroy St. Hilaire, 33600 Pessac, France
| | - David Duché
- Aix Marseille Univ, CNRS, University of Toulon, IM2NP UMR 7334, 13397 Marseille, France
| | - Sophie Lecomte
- Institute for Chemistry and Biology of Membrane and Nano-objects, Allée Geoffroy St. Hilaire, 33600 Pessac, France
| | - Marianne Ilbert
- Aix-Marseille Univ, CNRS, BIP, UMR 7281, 31 Chemin Aiguier, 13009 Marseille, France
| | - Anne de Poulpiquet
- Aix-Marseille Univ, CNRS, BIP, UMR 7281, 31 Chemin Aiguier, 13009 Marseille, France
| | - Elisabeth Lojou
- Aix-Marseille Univ, CNRS, BIP, UMR 7281, 31 Chemin Aiguier, 13009 Marseille, France
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12
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Takimoto D, Tsujimura S. Oxygen Reduction Reaction Activity and Stability of Electrochemically Deposited Bilirubin Oxidase. CHEM LETT 2018. [DOI: 10.1246/cl.180597] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Daisuke Takimoto
- Division of Materials Science, Faculty of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8573, Japan
- Center for Energy and Environmental of Science, Shinshu University, 3-15-1 Tokida, Ueda, Nagano 386-8567, Japan
| | - Seiya Tsujimura
- Division of Materials Science, Faculty of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8573, Japan
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13
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Chumillas S, Maestro B, Feliu JM, Climent V. Comprehensive Study of the Enzymatic Catalysis of the Electrochemical Oxygen Reduction Reaction (ORR) by Immobilized Copper Efflux Oxidase (CueO) From Escherichia coli. Front Chem 2018; 6:358. [PMID: 30197881 PMCID: PMC6117412 DOI: 10.3389/fchem.2018.00358] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Accepted: 07/30/2018] [Indexed: 11/23/2022] Open
Abstract
In recent years, enzymatic fuel cells have experienced a great development promoted by the availability of novel biological techniques that allow the access to a large number of enzymatic catalysts. One of the most important aspects in this area is the development of biocatalysts for the oxygen reduction reaction (ORR). Laccases from the group of enzymes called blue multi-cooper oxidases have received considerable attention because of their ability to catalyze the electrochemical oxygen reduction reaction to water when immobilized on metallic or carbonaceous electrode materials. In this paper we report a comprehensive study of the electrocatalytic activity of the enzyme Copper efflux oxidase (CueO) from Escherichia coli immobilized on different electrode materials. The influence of the electrode substrate employed for protein immobilization was evaluated using glassy carbon, gold or platinum electrodes. Gold and platinum electrodes were modified using different self-assembled monolayers (SAM) able to tune the electrostatic interaction between the protein and the substrate, depending on the nature of the terminal functional group in the SAM. The effects of protein immobilization time, electrode potential, solution pH and temperature, protein and O2 concentration have been carefully investigated. Finally, direct electron transfer (DET) was investigated in the presence of the following inhibitors: fluoride (F−), chloride (Cl−) and azide (N3-).
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Affiliation(s)
- Sara Chumillas
- Institute of Electrochemistry, University of Alicante, Alicante, Spain
| | - Beatriz Maestro
- Instituto de Biología Molecular y Celular, Universidad Miguel Hernández, Elche, Spain
| | - Juan M Feliu
- Institute of Electrochemistry, University of Alicante, Alicante, Spain
| | - Víctor Climent
- Institute of Electrochemistry, University of Alicante, Alicante, Spain
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14
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Xia HQ, Kitazumi Y, Shirai O, Kano K. Direct Electron Transfer-type Bioelectrocatalysis of Peroxidase at Mesoporous Carbon Electrodes and Its Application for Glucose Determination Based on Bienzyme System. ANAL SCI 2018; 33:839-844. [PMID: 28690263 DOI: 10.2116/analsci.33.839] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Non-catalytic direct electron transfer (DET) signal of Compound I of horseradish peroxidase (POD) was first detected at 0.7 V on POD/carbon nanotube mixture-modified electrodes. Excellent performance of DET-type bioelectrocatalysis was achieved with POD immobilized with glutaraldehyde on Ketjen Black (KB)-modified electrodes for H2O2 reduction with an onset potential of 0.65 V (vs. Ag | AgCl | sat. KCl) without any electrode surface modification. The POD-immobilized KB electrode was found to be suitable for detecting H2O2 with a low detection limit (0.1 μM at S/N = 3) at -0.1 V. By co-immobilizing glucose oxidase (GOD) and POD on the KB-modified electrode, a bienzyme electrode was constructed to couple the oxidase reaction of GOD with the DET-type bioelectrocatalytic reduction of H2O2 by POD. The amperometric detection of glucose was performed with a high sensitivity (0.33 ± 0.01 μA cm-2 μM-1) and a low detection limit (2 μM at S/N = 3).
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Affiliation(s)
- Hong-Qi Xia
- Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University
| | - Yuki Kitazumi
- Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University
| | - Osamu Shirai
- Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University
| | - Kenji Kano
- Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University
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15
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KITAZUMI Y. Electroanalytical Chemistry Based on the Theories of an Electrical Double Layer and a Reaction-diffusion Layer. BUNSEKI KAGAKU 2018. [DOI: 10.2116/bunsekikagaku.67.387] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Yuki KITAZUMI
- Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University
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16
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Abstract
Redox enzymes, which catalyze reactions involving electron transfers in living organisms, are very promising components of biotechnological devices, and can be envisioned for sensing applications as well as for energy conversion. In this context, one of the most significant challenges is to achieve efficient direct electron transfer by tunneling between enzymes and conductive surfaces. Based on various examples of bioelectrochemical studies described in the recent literature, this review discusses the issue of enzyme immobilization at planar electrode interfaces. The fundamental importance of controlling enzyme orientation, how to obtain such orientation, and how it can be verified experimentally or by modeling are the three main directions explored. Since redox enzymes are sizable proteins with anisotropic properties, achieving their functional immobilization requires a specific and controlled orientation on the electrode surface. All the factors influenced by this orientation are described, ranging from electronic conductivity to efficiency of substrate supply. The specificities of the enzymatic molecule, surface properties, and dipole moment, which in turn influence the orientation, are introduced. Various ways of ensuring functional immobilization through tuning of both the enzyme and the electrode surface are then described. Finally, the review deals with analytical techniques that have enabled characterization and quantification of successful achievement of the desired orientation. The rich contributions of electrochemistry, spectroscopy (especially infrared spectroscopy), modeling, and microscopy are featured, along with their limitations.
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17
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Sakai K, Xia HQ, Kitazumi Y, Shirai O, Kano K. Assembly of direct-electron-transfer-type bioelectrodes with high performance. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.03.163] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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18
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Xia HQ, Kitazumi Y, Shirai O, Ozawa H, Onizuka M, Komukai T, Kano K. Factors affecting the interaction between carbon nanotubes and redox enzymes in direct electron transfer-type bioelectrocatalysis. Bioelectrochemistry 2017; 118:70-74. [DOI: 10.1016/j.bioelechem.2017.07.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Revised: 06/30/2017] [Accepted: 07/10/2017] [Indexed: 11/25/2022]
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19
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Belsare KD, Horn T, Ruff AJ, Martinez R, Magnusson A, Holtmann D, Schrader J, Schwaneberg U. Directed evolution of P450cin for mediated electron transfer. Protein Eng Des Sel 2016; 30:119-127. [PMID: 28007937 DOI: 10.1093/protein/gzw072] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2016] [Revised: 11/28/2016] [Accepted: 12/05/2016] [Indexed: 11/13/2022] Open
Abstract
Directed evolution is a powerful method to optimize enzyme properties for application demands. Interesting targets are P450 monooxygenases which catalyze the stereo- and regiospecific hydroxylation of chemically inert C-H bonds. Synthesis employing P450s under cell-free reaction conditions is limited by low total turnover numbers, enzyme instability, low product yields and the requirement of the expensive co-factor NADPH. Bioelectrocatalysis is an alternative to replace NADPH in cell-free P450-catalyzed reactions. However, natural enzymes are often not suitable for using non-natural electron delivery systems. Here we report the directed evolution of a previously engineered P450 CinA-10aa-CinC fusion protein (named P450cin-ADD-CinC) to use zinc/cobalt(III)sepulchrate as electron delivery system for an increased hydroxylation activity of 1,8-cineole. Two rounds of Sequence Saturation Mutagenesis (SeSaM) each followed by one round of multiple site-saturation mutagenesis of the P450 CinA-10aa-CinC fusion protein generated a variant (Gln385His, Val386Ser, Thr77Asn, Leu88Arg; named KB8) with a 3.8-fold increase in catalytic efficiency (28 µM-1 min-1) compared to P450cin-ADD-CinC (7 µM-1 min-1). Furthermore, variant KB8 exhibited a 1.5-fold higher product formation (500 µM µM-1 P450) compared to the equimolar mixture of CinA, CinC and Fpr using NADPH as co-factor (315 µM µM-1 P450). In addition, electrochemical experiments with the electron delivery system platinum/cobalt(III)sepulchrate showed that the KB8 variant had a 4-fold higher product formation rate (0.16 nmol (nmol) P450-1 min-1 cm-2) than the P450cin-ADD-CinC (0.04 nmol (nmol) P450-1 min-1 cm-2). In summary, the current work shows prospects of using directed evolution to generate P450 enzymes suitable for use with alternative electron delivery systems.
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Affiliation(s)
- Ketaki D Belsare
- Lehrstuhl für Biotechnologie, RWTH Aachen University, Worringerweg 3, 52074 Aachen, Germany
| | - Thomas Horn
- Lehrstuhl für Biotechnologie, RWTH Aachen University, Worringerweg 3, 52074 Aachen, Germany
| | - Anna Joëlle Ruff
- Lehrstuhl für Biotechnologie, RWTH Aachen University, Worringerweg 3, 52074 Aachen, Germany
| | - Ronny Martinez
- Lehrstuhl für Biotechnologie, RWTH Aachen University, Worringerweg 3, 52074 Aachen, Germany
| | - Anders Magnusson
- Biochemical Engineering Group, DECHEMA Research Institute, Theodor-Heuss-Allee 25, 60486 Frankfurt am Main, Germany
| | - Dirk Holtmann
- Biochemical Engineering Group, DECHEMA Research Institute, Theodor-Heuss-Allee 25, 60486 Frankfurt am Main, Germany
| | - Jens Schrader
- Biochemical Engineering Group, DECHEMA Research Institute, Theodor-Heuss-Allee 25, 60486 Frankfurt am Main, Germany
| | - Ulrich Schwaneberg
- Lehrstuhl für Biotechnologie, RWTH Aachen University, Worringerweg 3, 52074 Aachen, Germany .,DWI-Leibniz-Institut für Interaktive Materialien e. V., Forckenbeckstraße 50, 52074 Aachen, Germany
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20
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Analysis of factors governing direct electron transfer-type bioelectrocatalysis of bilirubin oxidase at modified electrodes. J Electroanal Chem (Lausanne) 2016. [DOI: 10.1016/j.jelechem.2016.10.062] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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21
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Hosseini SA, Zanganeh S, Akbarnejad E, Salehi F, Abdolahad M. Microfluidic device for label-free quantitation and distinction of bladder cancer cells from the blood cells using micro machined silicon based electrical approach; suitable in urinalysis assays. J Pharm Biomed Anal 2016; 134:36-42. [PMID: 27871055 DOI: 10.1016/j.jpba.2016.11.026] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Revised: 11/10/2016] [Accepted: 11/11/2016] [Indexed: 12/14/2022]
Abstract
This paper introduces an integrated microfluidic chip as a promising tool to measure the concentration of bladder cancer cells (BCC) in urine samples. Silicon microchannels were used as trapping gates for both floated BCC and leukocytes which are found in the urine of patients. By the assistance of the gold electrodes patterned at the bottom of the micro gates, the capacitance of captured cancerous and blood cells were measured. Different membrane capacitance between BCC and leukocyte was the indicative signal for diagnosing the nature of captured cells in a urine like solution. The concentration range of the target that could be detected was about 10 BCCs per one chip. Such response has been achieved without applying any biochemical or florescent markers. Thus, it could be a simple and cheap approach to support cytological and immune-fluorescent assays. The limit of detection was approximately 1 cancerous cell/11 leukocytes in 1ml of the urine like solution. The entire measurement time was less than an hour. Consequently, this electrical microfluidic device promises significant potential in urinalysis.
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Affiliation(s)
- Seied Ali Hosseini
- Nano Electronic Center of Excellence, Nano Bio Electronic Devices Lab, School of Electrical and Computer Eng, University of Tehran, Tehran, P.O. Box 14395/515, Iran; Nano Electronic Center of Excellence, Thin Film and Nanoelectronic Lab, School of Electrical and Computer Eng, University of Tehran, Tehran, P.O. Box 14395/515, Iran
| | - Somayeh Zanganeh
- Nano Electronic Center of Excellence, Nano Bio Electronic Devices Lab, School of Electrical and Computer Eng, University of Tehran, Tehran, P.O. Box 14395/515, Iran; Nano Electronic Center of Excellence, Thin Film and Nanoelectronic Lab, School of Electrical and Computer Eng, University of Tehran, Tehran, P.O. Box 14395/515, Iran
| | - Elaheh Akbarnejad
- Nano Electronic Center of Excellence, Nano Bio Electronic Devices Lab, School of Electrical and Computer Eng, University of Tehran, Tehran, P.O. Box 14395/515, Iran; Nano Electronic Center of Excellence, Thin Film and Nanoelectronic Lab, School of Electrical and Computer Eng, University of Tehran, Tehran, P.O. Box 14395/515, Iran
| | - Fatemeh Salehi
- Nano Electronic Center of Excellence, Nano Bio Electronic Devices Lab, School of Electrical and Computer Eng, University of Tehran, Tehran, P.O. Box 14395/515, Iran; Nano Electronic Center of Excellence, Thin Film and Nanoelectronic Lab, School of Electrical and Computer Eng, University of Tehran, Tehran, P.O. Box 14395/515, Iran
| | - Mohammad Abdolahad
- Nano Electronic Center of Excellence, Nano Bio Electronic Devices Lab, School of Electrical and Computer Eng, University of Tehran, Tehran, P.O. Box 14395/515, Iran; Nano Electronic Center of Excellence, Thin Film and Nanoelectronic Lab, School of Electrical and Computer Eng, University of Tehran, Tehran, P.O. Box 14395/515, Iran.
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22
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Gutierrez-Sanchez C, Ciaccafava A, Blanchard PY, Monsalve K, Giudici-Orticoni MT, Lecomte S, Lojou E. Efficiency of Enzymatic O2 Reduction by Myrothecium verrucaria Bilirubin Oxidase Probed by Surface Plasmon Resonance, PMIRRAS, and Electrochemistry. ACS Catal 2016. [DOI: 10.1021/acscatal.6b01423] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | - Alexandre Ciaccafava
- Technische Universität Berlin, Institut für
Chemie, Sekretariat PC
14, D-10623 Berlin, Germany
| | | | - Karen Monsalve
- Aix Marseille Univ, CNRS, BIP, UMR 7281, 31 Chemin Aiguier, 13402 Marseille, France
| | | | - Sophie Lecomte
- Institut for Chemistry and Biology of Membrane and Nanoobjects, Allée Geoffroy St Hilaire, 33600 Pessac, France
| | - Elisabeth Lojou
- Aix Marseille Univ, CNRS, BIP, UMR 7281, 31 Chemin Aiguier, 13402 Marseille, France
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23
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Cazelles R, Lalaoui N, Hartmann T, Leimkühler S, Wollenberger U, Antonietti M, Cosnier S. Ready to use bioinformatics analysis as a tool to predict immobilisation strategies for protein direct electron transfer (DET). Biosens Bioelectron 2016; 85:90-95. [PMID: 27156017 DOI: 10.1016/j.bios.2016.04.078] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Revised: 04/20/2016] [Accepted: 04/22/2016] [Indexed: 12/19/2022]
Abstract
Direct electron transfer (DET) to proteins is of considerable interest for the development of biosensors and bioelectrocatalysts. While protein structure is mainly used as a method of attaching the protein to the electrode surface, we employed bioinformatics analysis to predict the suitable orientation of the enzymes to promote DET. Structure similarity and secondary structure prediction were combined underlying localized amino-acids able to direct one of the enzyme's electron relays toward the electrode surface by creating a suitable bioelectrocatalytic nanostructure. The electro-polymerization of pyrene pyrrole onto a fluorine-doped tin oxide (FTO) electrode allowed the targeted orientation of the formate dehydrogenase enzyme from Rhodobacter capsulatus (RcFDH) by means of hydrophobic interactions. Its electron relays were directed to the FTO surface, thus promoting DET. The reduction of nicotinamide adenine dinucleotide (NAD(+)) generating a maximum current density of 1μAcm(-2) with 10mM NAD(+) leads to a turnover number of 0.09electron/s/molRcFDH. This work represents a practical approach to evaluate electrode surface modification strategies in order to create valuable bioelectrocatalysts.
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Affiliation(s)
- R Cazelles
- Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam (Golm), Germany.
| | - N Lalaoui
- Univ. Grenoble Alpes, CNRS, DCM UMR 5250, F-38000 Grenoble, France
| | - T Hartmann
- Department of Molecular Enzymology, Institute for Biochemistry and Biology, University of Potsdam, Karl-Liebknecht-Str. 24-25, 14476 Potsdam (Golm), Germany
| | - S Leimkühler
- Department of Molecular Enzymology, Institute for Biochemistry and Biology, University of Potsdam, Karl-Liebknecht-Str. 24-25, 14476 Potsdam (Golm), Germany
| | - U Wollenberger
- Department of Molecular Enzymology, Institute for Biochemistry and Biology, University of Potsdam, Karl-Liebknecht-Str. 24-25, 14476 Potsdam (Golm), Germany
| | - M Antonietti
- Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam (Golm), Germany
| | - S Cosnier
- Univ. Grenoble Alpes, CNRS, DCM UMR 5250, F-38000 Grenoble, France
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24
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Xia HQ, Kitazumi Y, Shirai O, Kano K. Enhanced direct electron transfer-type bioelectrocatalysis of bilirubin oxidase on negatively charged aromatic compound-modified carbon electrode. J Electroanal Chem (Lausanne) 2016. [DOI: 10.1016/j.jelechem.2015.12.043] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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25
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Qiao S, Yin X, Zhou J. Application of cathode modified by reduced graphene oxide/polypyrrole to enhance anammox activity. RSC Adv 2016. [DOI: 10.1039/c6ra18941e] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In this paper, a modified carbon felt (serving as the cathode) prepared by coating reduced graphene oxide (RGO) with polypyrrole (PPy) was applied in an electrode-anammox reactor.
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Affiliation(s)
- Sen Qiao
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, China)
- School of Environmental Science and Technology
- Dalian University of Technology
- Dalian 116024
- P. R. China
| | - Xin Yin
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, China)
- School of Environmental Science and Technology
- Dalian University of Technology
- Dalian 116024
- P. R. China
| | - Jiti Zhou
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, China)
- School of Environmental Science and Technology
- Dalian University of Technology
- Dalian 116024
- P. R. China
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26
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Yin X, Qiao S, Zhou J, Quan X. Using three-bio-electrode reactor to enhance the activity of anammox biomass. BIORESOURCE TECHNOLOGY 2015; 196:376-382. [PMID: 26255601 DOI: 10.1016/j.biortech.2015.07.096] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Revised: 07/23/2015] [Accepted: 07/24/2015] [Indexed: 06/04/2023]
Abstract
This research was designed to investigate the effects of different electric potentials (EPs) on the anammox biomass activity in a three-electrode reactor. Electric potential difference (EPD) of 0.08V between the working and reference electrodes showed the best nitrogen removal performance. Under the optimal EPD of 0.08V, the nitrogen removal rate of reactor 2 (R2, EP applied) reached 911g-N/m(3)/d on day 188, which was 25.3% higher than that of reactor 1 (R1, the control). Moreover, the scanning electron microscope observation and extracellular polymeric substance analysis proved that EP application was conducive to the anammox cells growing onto the surface of electrode. Additionally, it was demonstrated that long-term EP application increased the crude enzymes activities and the cell quantities of the bio-electrode anammox reactor. Besides, transmission electron microscope observation proved the morphological variation of anammox biomass with continuous EP application.
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Affiliation(s)
- Xin Yin
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, China), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, PR China
| | - Sen Qiao
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, China), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, PR China.
| | - Jiti Zhou
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, China), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, PR China
| | - Xie Quan
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, China), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, PR China
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27
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Zhou X, Tan B, Zheng X, Kong D, Li Q. Interfacial electron transfer of glucose oxidase on poly(glutamic acid)-modified glassy carbon electrode and glucose sensing. Anal Biochem 2015; 489:9-16. [PMID: 26278169 DOI: 10.1016/j.ab.2015.08.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Revised: 08/06/2015] [Accepted: 08/06/2015] [Indexed: 11/24/2022]
Abstract
The interfacial electron transfer of glucose oxidase (GOx) on a poly(glutamic acid)-modified glassy carbon electrode (PGA/GCE) was investigated. The redox peaks measured for GOx and flavin adenine dinucleotide (FAD) are similar, and the anodic peak of GOx does not increase in the presence of glucose in a mediator-free solution. These indicate that the electroactivity of GOx is not the direct electron transfer (DET) between GOx and PGA/GCE and that the observed electroactivity of GOx is ascribed to free FAD that is released from GOx. However, efficient electron transfer occurred if an appropriate mediator was placed in solution, suggesting that GOx is active. The PGA/GCE-based biosensor showed wide linear response in the range of 0.5-5.5 mM with a low detection limit of 0.12 mM and high sensitivity and selectivity for measuring glucose.
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Affiliation(s)
- Xuechou Zhou
- School of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
| | - Bingcan Tan
- School of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Xinyu Zheng
- School of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Dexian Kong
- School of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Qinglu Li
- School of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Engineering Laboratory of Animal Pharmaceuticals of Fujian Province, Fuzhou 350002, China.
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28
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Sugimoto Y, Kitazumi Y, Shirai O, Yamamoto M, Kano K. Role of 2-mercaptoethanol in direct electron transfer-type bioelectrocatalysis of fructose dehydrogenase at Au electrodes. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.04.164] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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29
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Tominaga M, Sasaki A, Togami M. Laccase Bioelectrocatalyst at a Steroid-Type Biosurfactant-Modified Carbon Nanotube Interface. Anal Chem 2015; 87:5417-21. [DOI: 10.1021/acs.analchem.5b00858] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Masato Tominaga
- Graduate
School of Science and Technology, Kumamoto University, Kumamoto 860-8555, Japan
- Kumamoto Institute for Photo-Electro Organics, Kumamoto 862-0901, Japan
| | - Aiko Sasaki
- Graduate
School of Science and Technology, Kumamoto University, Kumamoto 860-8555, Japan
| | - Makoto Togami
- Graduate
School of Science and Technology, Kumamoto University, Kumamoto 860-8555, Japan
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30
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31
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Kawai S, Yakushi T, Matsushita K, Kitazumi Y, Shirai O, Kano K. Role of a non-ionic surfactant in direct electron transfer-type bioelectrocatalysis by fructose dehydrogenase. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2014.11.113] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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32
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Direct electrochemistry of hemoglobin in a renewable mesoporous carbon ceramic electrode: a new kind of hydrogen peroxide biosensor. Mikrochim Acta 2014. [DOI: 10.1007/s00604-014-1403-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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