1
|
Zhang L, Hao S, Dou Q, Dong T, Qi WK, Huang X, Peng Y, Yang J. Multi-Omics Analysis Reveals the Nitrogen Removal Mechanism Induced by Electron Flow during the Start-up of the Anammox-Centered Process. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:16115-16124. [PMID: 36215419 DOI: 10.1021/acs.est.2c02181] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Significant progress in understanding the key enzymes or species of anammox has been made; however, the nitrogen removal mechanism in complex coupling systems centered on anammox remains limited. In this study, by the combination of metagenomics-metatranscriptomics analyses, the nitrogen removal in the anammox-centered coupling system that entails partial denitrification (PD) and hydrolytic acidification (HA, A-PDHA) was elucidated to be the nitrogen transformation driven by the electron generation-transport-consumption process. The results showed that a total nitrogen (TN) removal efficiency of >98%, with a TN effluence of <1 mg/L and a TN removal contribution via anammox of >98%, was achieved after 59 days under famine operation and alkaline conditions during the start-up process. Further investigation confirmed that famine operation promoted the activity of genes responsible for electron generation in anammox, and increased the abundance or expression of genes related to electron consumption. Alkaline conditions enhanced the electron generation for PD by upregulating the activity of glyceraldehyde 3-phosphate dehydrogenase and strengthened electron transfer by increasing the gene encoding quinone pool. Altogether, these variations in the electron flow led to efficient nitrogen removal. These results improve our understanding of the nitrogen removal mechanism and application of the anammox-centered coupling systems in treating nitrogen wastewater.
Collapse
Affiliation(s)
- Li Zhang
- National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing100124, China
| | - Shiwei Hao
- National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing100124, China
| | - Quanhao Dou
- National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing100124, China
| | - Tingjun Dong
- National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing100124, China
| | - Wei Kang Qi
- National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing100124, China
| | - Xiaowu Huang
- Environmental Science and Engineering Program, Guangdong Technion-Israel Institute of Technology, 241 Daxue Road, Shantou, Guangdong515063, China
| | - Yongzhen Peng
- National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing100124, China
| | - Jiachun Yang
- Shuifa Shandong Water Development Group Co. Ltd.Shandong274200, China
| |
Collapse
|
2
|
Ó Conghaile P, Arrigan DWM. Ubiquinone electrochemistry in analysis and sensing. ELECTROCHEMICAL SCIENCE ADVANCES 2022. [DOI: 10.1002/elsa.202100214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Affiliation(s)
- Peter Ó Conghaile
- School of Molecular and Life Sciences Curtin University Perth Australia
- School of Chemistry & Ryan Institute National University of Ireland Galway University Road Galway H91 TK33 Ireland
| | | |
Collapse
|
3
|
Guette-Marquet S, Roques C, Bergel A. Catalysis of the electrochemical oxygen reduction reaction (ORR) by animal and human cells. PLoS One 2021; 16:e0251273. [PMID: 33951096 PMCID: PMC8099096 DOI: 10.1371/journal.pone.0251273] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 04/22/2021] [Indexed: 11/21/2022] Open
Abstract
Animal cells from the Vero lineage and MRC5 human cells were checked for their capacity to catalyse the electrochemical oxygen reduction reaction (ORR). The Vero cells needed 72 hours’ incubation to induce ORR catalysis. The cyclic voltammetry curves were clearly modified by the presence of the cells with a shift of ORR of 50 mV towards positive potentials and the appearance of a limiting current (59 μA.cm-2). The MRC5 cells induced considerable ORR catalysis after only 4 h of incubation with a potential shift of 110 mV but with large experimental deviation. A longer incubation time, of 24 h, made the results more reproducible with a potential shift of 90 mV. The presence of carbon nanotubes on the electrode surface or pre-treatment with foetal bovine serum or poly-D-lysine did not change the results. These data are the first demonstrations of the capability of animal and human cells to catalyse electrochemical ORR. The discussion of the possible mechanisms suggests that these pioneering observations could pave the way for electrochemical biosensors able to characterize the protective system of cells against oxidative stress and its sensitivity to external agents.
Collapse
Affiliation(s)
- Simon Guette-Marquet
- Laboratoire de Génie Chimique, Université de Toulouse, CNRS, INPT, UPS, Fac. Sci. Pharmaceutique, 31062, Toulouse, France
| | - Christine Roques
- Laboratoire de Génie Chimique, Université de Toulouse, CNRS, INPT, UPS, Fac. Sci. Pharmaceutique, 31062, Toulouse, France
| | - Alain Bergel
- Laboratoire de Génie Chimique, Université de Toulouse, CNRS, INPT, UPS, 31432, Toulouse, France
- * E-mail:
| |
Collapse
|
4
|
Molecularly wiring of Cytochrome c with carboxylic acid functionalized hydroquinone on MWCNT surface and its bioelectrocatalytic reduction of H2O2 relevance to biomimetic electron-transport and redox signalling. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2020.137596] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
5
|
Frantz NL, Brakoniecki G, Chen D, Proshlyakov DA. Assessment of the Maximal Activity of Complex IV in the Inner Mitochondrial Membrane by Tandem Electrochemistry and Respirometry. Anal Chem 2021; 93:1360-1368. [PMID: 33319559 PMCID: PMC8772154 DOI: 10.1021/acs.analchem.0c02910] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Assessment of activities of mitochondrial electron transport enzymes is important for understanding mechanisms of metabolic diseases, but structural organization of mitochondria and low sample availability pose distinctive challenges for in situ functional studies. We report the development of a tandem microfluidic respirometer that simultaneously tracks both the reduction of mediators on the electrode and the ensuing reduction of O2 by complex IV in the inner mitochondrial membrane. The response time of O2 consumption to multiple alternating potential steps is of approximately 10 s for a 150 μm-thick sample. Steady O2 depletion shows good quantitative correlation with the supplied electric charge, Pearson's r = 0.994. Reduction of mediators on biocompatible gold electrodes modified with carbon ink or fumed silica can compete with the oxidation of mediators by mitochondria, yielding an overall respiratory activity comparable to that upon chemical reduction by ascorbate. The dependence of O2 consumption on mediator and mitochondrial suspension concentrations shows that mass transport between the electrode and mitochondria does not limit biological activity of the latter. The mediated electrochemical approach is validated by the radiometric measurements of simulated changes in the intrinsic mitochondrial activity upon partial inhibition of complex IV by NaN3. This approach enables the development of O2-independent, biomimetic electrochemical assays narrowly targeting components of the electron transport chains in their native environments.
Collapse
Affiliation(s)
- Nathan L Frantz
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824-1322, United States
| | - Gabrielle Brakoniecki
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824-1322, United States
| | - Dawei Chen
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824-1322, United States
| | - Denis A Proshlyakov
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824-1322, United States
- Department of Physiology, Michigan State University, 567 Wilson Rd, East Lansing, Michigan 48824-6405, United States
| |
Collapse
|
6
|
Simonis P, Garjonyte R, Stirke A. Mediated amperometry as a prospective method for the investigation of electroporation. Sci Rep 2020; 10:19094. [PMID: 33154473 PMCID: PMC7644768 DOI: 10.1038/s41598-020-76086-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Accepted: 10/22/2020] [Indexed: 12/23/2022] Open
Abstract
Pulsed electric field effects induced in a membrane, as well as intracellular structures, depend on cell type, field and media parameters. To achieve desired outcomes, membranes should be permeabilized in a controlled manner, and thus efficiency of electroporation should be investigated in advance. Here, we present a framework for using mediated amperometry as a prospective method for the investigation of electroporation and its effects on cellular machinery. Whole-cell sensors with single mediator systems comprised of hydrophilic or lipophilic mediators were successfully employed to investigate membrane permeability as well as cellular responses. Exposure of yeast cells to single electric field pulse (τ = 300 µs, E = 16 kV/cm) resulted in up to tenfold increase of current strength mediated with hydrophilic mediators. Exposure to PEF resulted in decrease of menadione mediated current strength (from 138 ± 15 to 32 ± 15 nA), which could be completely compensated by supplementing electrolyte with NADH.
Collapse
Affiliation(s)
- Povilas Simonis
- State Research Institute, Center for Physical Sciences and Technology, Saulėtekio al. 3, Vilnius, Lithuania.
| | - Rasa Garjonyte
- State Research Institute, Center for Physical Sciences and Technology, Saulėtekio al. 3, Vilnius, Lithuania
| | - Arunas Stirke
- State Research Institute, Center for Physical Sciences and Technology, Saulėtekio al. 3, Vilnius, Lithuania
| |
Collapse
|
7
|
Zhang Q, Li X, Chen Y, Zhang Q, Liu H, Zhai J, Yang X. High-Performance Respiration-Based Biocell Using Artificial Nanochannel Regulation. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1606871. [PMID: 28436059 DOI: 10.1002/adma.201606871] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Revised: 02/02/2017] [Indexed: 06/07/2023]
Abstract
Based on electron and proton transfer events occurring in biological respiration, a mitochondria-based biocell is constructed by combining with artificial nanochannels. In this biocell, mitochondria transfer electrons to the working electrode and pump protons into the electrolyte through the tricarboxylic acid cycle. The nanochannels provide passages for protons to transport along the transmembrane concentration gradient to consume electrons on the counter electrode, forming a continuous and stable current. Furthermore, the proton transmembrane transport behavior could be modulated by regulating the permeability area and surface charge of nanochannels. A high-performance biocell is obtained when equipped with the optimized nanochannels, which produces a current of ≈3.1 mA cm-2 , a maximum power of ≈0.91 mW cm-2 , and a lifetime over 60 h. This respiratory-based biocell shows great potential for the efficient utilization of bioelectricity.
Collapse
Affiliation(s)
- Qianqian Zhang
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, Beijing Key Laboratory of Bio-Inspired Energy Materials and Devices, School of Chemistry, Beihang University, Beijing, 100191, P. R. China
- School of Physics and Nuclear Energy Engineering, Beihang University, Beijing, 100191, P. R. China
| | - Xiulin Li
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, Beijing Key Laboratory of Bio-Inspired Energy Materials and Devices, School of Chemistry, Beihang University, Beijing, 100191, P. R. China
| | - Yang Chen
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, Beijing Key Laboratory of Bio-Inspired Energy Materials and Devices, School of Chemistry, Beihang University, Beijing, 100191, P. R. China
| | - Qian Zhang
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, Beijing Key Laboratory of Bio-Inspired Energy Materials and Devices, School of Chemistry, Beihang University, Beijing, 100191, P. R. China
| | - Huixue Liu
- State Key Laboratories of Natural and Mimetic Drugs and Department of Chemical Biology, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing, 100191, P. R. China
| | - Jin Zhai
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, Beijing Key Laboratory of Bio-Inspired Energy Materials and Devices, School of Chemistry, Beihang University, Beijing, 100191, P. R. China
| | - Xiaoda Yang
- State Key Laboratories of Natural and Mimetic Drugs and Department of Chemical Biology, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing, 100191, P. R. China
| |
Collapse
|
8
|
Milton RD, Wang T, Knoche KL, Minteer SD. Tailoring Biointerfaces for Electrocatalysis. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:2291-301. [PMID: 26898265 DOI: 10.1021/acs.langmuir.5b04742] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Bioelectrocatalysis is an expanding research area due to the use of this type of electrocatalysis in electrochemical biosensors, biofuel cells, bioelectrochemical cells, and biosolar cells. This feature article discusses recent advancements in tailoring the biointerface between electrodes and biocatalysts for facile electrocatalysis. This includes the design of pyrene moieties for directing the orientation of biocatalysts on electrode surfaces and mediation as well as the rational design of redox polymers for self-exchange-based electron transport to/from biocatalysts and the electrode and the use of bioscaffolding techniques for designing the bioelectrode structure. However, recent advances in the past decade have shown the importance of hybrid bioelectrocatalytic systems, and future work will be needed to use these same pyrene, redox polymer, and bioscaffolding techniques for hybrid bioelectrocatalysis.
Collapse
Affiliation(s)
- Ross D Milton
- Departments of Chemistry and Materials Engineering, University of Utah , 315 S. 1400 E, Room 2020, Salt Lake City, Utah 84112, United States
| | - Tao Wang
- Departments of Chemistry and Materials Engineering, University of Utah , 315 S. 1400 E, Room 2020, Salt Lake City, Utah 84112, United States
| | - Krysti L Knoche
- Departments of Chemistry and Materials Engineering, University of Utah , 315 S. 1400 E, Room 2020, Salt Lake City, Utah 84112, United States
| | - Shelley D Minteer
- Departments of Chemistry and Materials Engineering, University of Utah , 315 S. 1400 E, Room 2020, Salt Lake City, Utah 84112, United States
| |
Collapse
|
9
|
Wang T, Reid RC, Minteer SD. A Paper-based Mitochondrial Electrochemical Biosensor for Pesticide Detection. ELECTROANAL 2015. [DOI: 10.1002/elan.201500487] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
|
10
|
|