1
|
Seif-Eddine M, Cobb SJ, Dang Y, Abdiaziz K, Bajada MA, Reisner E, Roessler MM. Operando film-electrochemical EPR spectroscopy tracks radical intermediates in surface-immobilized catalysts. Nat Chem 2024; 16:1015-1023. [PMID: 38355827 DOI: 10.1038/s41557-024-01450-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Accepted: 01/12/2024] [Indexed: 02/16/2024]
Abstract
The development of surface-immobilized molecular redox catalysts is an emerging research field with promising applications in sustainable chemistry. In electrocatalysis, paramagnetic species are often key intermediates in the mechanistic cycle but are inherently difficult to detect and follow by conventional in situ techniques. We report a new method, operando film-electrochemical electron paramagnetic resonance spectroscopy (FE-EPR), which enables mechanistic studies of surface-immobilized electrocatalysts. This technique enables radicals formed during redox reactions to be followed in real time under flow conditions, at room temperature and in aqueous solution. Detailed insight into surface-immobilized catalysts, as exemplified here through alcohol oxidation catalysis by a surface-immobilized nitroxide, is possible by detecting active-site paramagnetic species sensitively and quantitatively operando, thereby enabling resolution of the reaction kinetics. Our finding that the surface electron-transfer rate, which is of the same order of magnitude as the rate of catalysis (accessible from operando FE-EPR), limits catalytic efficiency has implications for the future design of better surface-immobilized catalysts.
Collapse
Affiliation(s)
- Maryam Seif-Eddine
- Department of Chemistry, Molecular Sciences Research Hub, Imperial College London, London, UK
| | - Samuel J Cobb
- Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge, UK
| | - Yunfei Dang
- Department of Chemistry, Molecular Sciences Research Hub, Imperial College London, London, UK
| | - Kaltum Abdiaziz
- Department of Chemistry, Molecular Sciences Research Hub, Imperial College London, London, UK
- Max Planck Institute for Chemical Energy Conversion, Mülheim an der Ruhr, Germany
| | - Mark A Bajada
- Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge, UK
| | - Erwin Reisner
- Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge, UK
| | - Maxie M Roessler
- Department of Chemistry, Molecular Sciences Research Hub, Imperial College London, London, UK.
| |
Collapse
|
2
|
Bae S, Kim M, Jo N, Kim KM, Lee C, Kwon TH, Nam YS, Ryu J. Amine-Rich Hydrogels for Molecular Nanoarchitectonics of Photosystem II and Inverse Opal TiO 2 toward Solar Water Oxidation. ACS APPLIED MATERIALS & INTERFACES 2024; 16:16086-16095. [PMID: 38506502 DOI: 10.1021/acsami.3c18289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/21/2024]
Abstract
Solar water oxidation is a crucial process in light-driven reductive synthesis, providing electrons and protons for various chemical reductions. Despite advances in light-harvesting materials and cocatalysts, achieving high efficiency and stability remains challenging. In this study, we present a simple yet effective strategy for immobilizing natural photosystems (PS) made of abundant and inexpensive elements, using amine-rich polyethylenimine (PEI) hydrogels, to fabricate organic/inorganic hybrid photoanodes. Natural PS II extracted from spinach was successfully immobilized on inverse opal TiO2 photoanodes in the presence of PEI hydrogels, leading to greatly enhanced solar water oxidation activity. Photoelectrochemical (PEC) analyses reveal that PS II can be immobilized in specific orientations through electrostatic interactions between the positively charged amine groups of PEI and the negatively charged stromal side of PS II. This specific orientation ensures efficient photogenerated charge separation and suppresses undesired side reactions such as the production of reactive oxygen species. Our study provides an effective immobilization platform and sheds light on the potential utilization of PS II in PEC water oxidation.
Collapse
Affiliation(s)
- Sanghyun Bae
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
- Emergent Hydrogen Technology R&D Center, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Minjung Kim
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
- Emergent Hydrogen Technology R&D Center, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Nyeongbeen Jo
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Kwang Min Kim
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Chaiheon Lee
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Tae-Hyuk Kwon
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
- Graduate School of Carbon Neutrality, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
- Center for Renewable Carbon, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Yoon Sung Nam
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Jungki Ryu
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
- Emergent Hydrogen Technology R&D Center, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
- Graduate School of Carbon Neutrality, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
- Center for Renewable Carbon, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| |
Collapse
|
3
|
Lee H, Hyun J. Biophotovoltaic living hydrogel of an ion-crosslinked carboxymethylated cellulose nanofiber/alginate. Carbohydr Polym 2023; 321:121299. [PMID: 37739532 DOI: 10.1016/j.carbpol.2023.121299] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 08/02/2023] [Accepted: 08/13/2023] [Indexed: 09/24/2023]
Abstract
Due to the low electrical power generation in liquid cultures of photosynthetic microalgae, a solid medium culture is demanded for the efficient design of biophotovoltaic (BPV) cells. In particular, the conductivity of the culture medium and the contact of microalgae with an electrode are crucial in harvesting electrons in BPV cells. Here, an ion-crosslinked carboxymethylated cellulose nanofiber (CM-CNF)/alginate is proposed as a living hydrogel for the green power generation of Chlorella vulgaris embedded in the hydrogel. The hydrogel crosslinked with Ca2+ and Fe3+ ions showed more efficient BPV properties than the hydrogel crosslinked with only Ca2+ due to the increase of conductivity. The efficient transport of electrons generated by C. vulgaris improves the power generation of BPV cells. Moreover, the fluid channels imprinted in the living hydrogel maintain the viability of C. vulgaris even under the ambient environment by preventing the solid medium from being dried out.
Collapse
Affiliation(s)
- Hwarueon Lee
- Department of Biosystems and Biomaterials Science and Engineering, Seoul National University, Seoul 08826, Republic of Korea; Department of Agriculture, Forestry, and Bioresources, Seoul National University, Seoul 08826, Republic of Korea
| | - Jinho Hyun
- Department of Biosystems and Biomaterials Science and Engineering, Seoul National University, Seoul 08826, Republic of Korea; Department of Agriculture, Forestry, and Bioresources, Seoul National University, Seoul 08826, Republic of Korea; Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea.
| |
Collapse
|
4
|
Gobbato T, Volpato GA, Sartorel A, Bonchio M. A breath of sunshine: oxygenic photosynthesis by functional molecular architectures. Chem Sci 2023; 14:12402-12429. [PMID: 38020375 PMCID: PMC10646967 DOI: 10.1039/d3sc03780k] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 09/28/2023] [Indexed: 12/01/2023] Open
Abstract
The conversion of light into chemical energy is the game-changer enabling technology for the energetic transition to renewable and clean solar fuels. The photochemistry of interest includes the overall reductive/oxidative splitting of water into hydrogen and oxygen and alternatives based on the reductive conversion of carbon dioxide or nitrogen, as primary sources of energy-rich products. Devices capable of performing such transformations are based on the integration of three sequential core functions: light absorption, photo-induced charge separation, and the photo-activated breaking/making of molecular bonds via specific catalytic routes. The key to success does not rely simply on the individual components' performance, but on their optimized integration in terms of type, number, geometry, spacing, and linkers dictating the photosynthetic architecture. Natural photosynthesis has evolved along this concept, by integrating each functional component in one specialized "body" (from the Greek word "soma") to enable the conversion of light quanta with high efficiency. Therefore, the natural "quantasome" represents the key paradigm to inspire man-made constructs for artificial photosynthesis. The case study presented in this perspective article deals with the design of artificial photosynthetic systems for water oxidation and oxygen production, engineered as molecular architectures then rendered on electrodic surfaces. Water oxidation to oxygen is indeed the pervasive oxidative reaction used by photosynthetic organisms, as the source of reducing equivalents (electrons and protons) to be delivered for the processing of high-energy products. Considering the vast and abundant supply of water (including seawater) as a renewable source on our planet, this is also a very appealing option for photosynthetic energy devices. We will showcase the progress in the last 15 years (2009-2023) in the strategies for integrating functional building blocks as molecular photosensitizers, multi-redox water oxidation catalysts and semiconductor materials, highlighting how additional components such as redox mediators, hydrophilic/hydrophobic pendants, and protective layers can impact on the overall photosynthetic performance. Emerging directions consider the modular tuning of the multi-component device, in order to target a diversity of photocatalytic oxidations, expanding the scope of the primary electron and proton sources while enhancing the added-value of the oxidation product beyond oxygen: the selective photooxidation of organics combines the green chemistry vision with renewable energy schemes and is expected to explode in coming years.
Collapse
Affiliation(s)
- Thomas Gobbato
- Department of Chemical Sciences, University of Padova via Marzolo 1 35131 Padova Italy
| | - Giulia Alice Volpato
- Department of Chemical Sciences, University of Padova via Marzolo 1 35131 Padova Italy
| | - Andrea Sartorel
- Department of Chemical Sciences, University of Padova via Marzolo 1 35131 Padova Italy
| | - Marcella Bonchio
- Department of Chemical Sciences, University of Padova via Marzolo 1 35131 Padova Italy
- ITM-CNR Section of Padova, INSTM Unit of Padova via Marzolo 1 35131 Padova Italy
| |
Collapse
|
5
|
Xiong W, Peng Y, Ma W, Xu X, Zhao Y, Wu J, Tang R. Microalgae-material hybrid for enhanced photosynthetic energy conversion: a promising path towards carbon neutrality. Natl Sci Rev 2023; 10:nwad200. [PMID: 37671320 PMCID: PMC10476897 DOI: 10.1093/nsr/nwad200] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Revised: 05/10/2023] [Accepted: 07/02/2023] [Indexed: 09/07/2023] Open
Abstract
Photosynthetic energy conversion for high-energy chemicals generation is one of the most viable solutions in the quest for sustainable energy towards carbon neutrality. Microalgae are fascinating photosynthetic organisms, which can directly convert solar energy into chemical energy and electrical energy. However, microalgal photosynthetic energy has not yet been applied on a large scale due to the limitation of their own characteristics. Researchers have been inspired to couple microalgae with synthetic materials via biomimetic assembly and the resulting microalgae-material hybrids have become more robust and even perform new functions. In the past decade, great progress has been made in microalgae-material hybrids, such as photosynthetic carbon dioxide fixation, photosynthetic hydrogen production, photoelectrochemical energy conversion and even biochemical energy conversion for biomedical therapy. The microalgae-material hybrid offers opportunities to promote artificially enhanced photosynthesis research and synchronously inspires investigation of biotic-abiotic interface manipulation. This review summarizes current construction methods of microalgae-material hybrids and highlights their implication in energy and health. Moreover, we discuss the current problems and future challenges for microalgae-material hybrids and the outlook for their development and applications. This review will provide inspiration for the rational design of the microalgae-based semi-natural biohybrid and further promote the disciplinary fusion of material science and biological science.
Collapse
Affiliation(s)
- Wei Xiong
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, China
| | - Yiyan Peng
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, China
| | - Weimin Ma
- College of Life Sciences, Shanghai Normal University, Shanghai 200234, China
| | - Xurong Xu
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China
- Qiushi Academy for Advanced Studies, Zhejiang University, Hangzhou 310027, China
| | - Yueqi Zhao
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou 310016, China
| | - Jinhui Wu
- State Key Laboratory of Pharmaceutical Biotechnology, Medical School & School of Life Sciences, Nanjing University, Nanjing 210093, China
| | - Ruikang Tang
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China
- Qiushi Academy for Advanced Studies, Zhejiang University, Hangzhou 310027, China
| |
Collapse
|
6
|
Lee H, Bang Y, Chang IS. Orientation-Controllable Enzyme Cascade on Electrode for Bioelectrocatalytic Chain Reaction. ACS APPLIED MATERIALS & INTERFACES 2023; 15:40355-40368. [PMID: 37552888 DOI: 10.1021/acsami.3c03077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/10/2023]
Abstract
The accomplishment of concurrent interenzyme chain reaction and direct electric communication in a multienzyme-electrode is challenging since the required condition of multienzymatic binding conformation is quite complex. In this study, an enzyme cascade-induced bioelectrocatalytic system has been constructed using solid binding peptide (SBP) as a molecular binder that coimmobilizes the invertase (INV) and flavin adenine dinucleotide (FAD)-dependent glucose dehydrogenase gamma-alpha complex (GDHγα) cascade system on a single electrode surface. The SBP-fused enzyme cascade was strategically designed to induce diverse relative orientations of coupling enzymes while enabling efficient direct electron transfer (DET) at the FAD cofactor of GDHγα and the electrode interface. The interenzyme relative orientation was found to determine the intermediate delivery route and affect overall chain reaction efficiency. Moreover, interfacial DET between the fusion GDHγα and the electrode was altered by the binding conformation of the coimmobilized enzyme and fusion INVs. Collectively, this work emphasizes the importance of interenzyme orientation when incorporating enzymatic cascade in an electrocatalytic system and demonstrates the efficacy of SBP fusion technology as a generic tool for developing cascade-induced direct bioelectrocatalytic systems. The proposed approach is applicable to enzyme cascade-based bioelectronics such as biofuel cells, biosensors, and bioeletrosynthetic systems utilizing or producing complex biomolecules.
Collapse
Affiliation(s)
- Hyeryeong Lee
- School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology, 123 Cheomdan-gwagiro, Buk-gu, Gwangju 61005, Republic of Korea
- Research Center for Innovative Energy and Carbon Optimized Synthesis for Chemicals (inn-ECOSysChem), Gwangju Institute of Science and Technology, 123 Cheomdan-gwagiro, Buk-gu, Gwangju 61005, Republic of Korea
| | - Yuna Bang
- School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology, 123 Cheomdan-gwagiro, Buk-gu, Gwangju 61005, Republic of Korea
| | - In Seop Chang
- School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology, 123 Cheomdan-gwagiro, Buk-gu, Gwangju 61005, Republic of Korea
- Research Center for Innovative Energy and Carbon Optimized Synthesis for Chemicals (inn-ECOSysChem), Gwangju Institute of Science and Technology, 123 Cheomdan-gwagiro, Buk-gu, Gwangju 61005, Republic of Korea
| |
Collapse
|
7
|
Li Y, Wang H, Tang L, Zhu H. Titanium dioxide nanoparticles enhance photocurrent generation of cyanobacteria. Biochem Biophys Res Commun 2023; 672:113-119. [PMID: 37348173 DOI: 10.1016/j.bbrc.2023.06.051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 06/15/2023] [Indexed: 06/24/2023]
Abstract
Photosynthetic microorganisms such as cyanobacteria can convert photons into electrons, providing ideal eco-friendly materials for converting solar energy into electricity. However, the electrons are hardly transported outside the cyanobacterial cells due to the insulation feature of the cell wall/membrane. Various nanomaterials have been reported to enhance extracellular electron transfer of heterotrophic electroactive microorganisms, but its effect on intact photosynthetic microorganisms remains unclear. In this study, we investigated the effect of six different nanomaterials on the photocurrent generation of cyanobacterium Synechocystis sp. PCC 6803. Among the nanomaterials tested, titanium dioxide (TiO2) nanoparticles increased the photocurrent generation of Synechocystis sp. PCC 6803 up to four-fold at the optimum concentration of 2 mg/mL. Transmission electron microscopy and scanning electron microscopy showed that TiO2 bound to cyanobacterial cells and likely penetrated inside of cell membrane. Photochemical analyses for photosystems showed that TiO2 blocked the electrons transfer downstream in PS I, implying a possible extracellular electron pathway mediated by TiO2. This study provides an alternative approach for enhancing the photocurrent generation of cyanobacteria, showing the potential of photosynthetic-nanomaterial hybrids.
Collapse
Affiliation(s)
- Yilan Li
- The Affiliated High School of Peking University, Beijing, 100080, China
| | - Haowei Wang
- Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Lingfang Tang
- The Affiliated High School of Peking University, Beijing, 100080, China.
| | - Huawei Zhu
- Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China.
| |
Collapse
|
8
|
Zhu H, Wang H, Zhang Y, Li Y. Biophotovoltaics: Recent advances and perspectives. Biotechnol Adv 2023; 64:108101. [PMID: 36681132 DOI: 10.1016/j.biotechadv.2023.108101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 01/02/2023] [Accepted: 01/15/2023] [Indexed: 01/19/2023]
Abstract
Biophotovoltaics (BPV) is a clean power generation technology that uses self-renewing photosynthetic microorganisms to capture solar energy and generate electrical current. Although the internal quantum efficiency of charge separation in photosynthetic microorganisms is very high, the inefficient electron transfer from photosystems to the extracellular electrodes hampered the electrical outputs of BPV systems. This review summarizes the approaches that have been taken to increase the electrical outputs of BPV systems in recent years. These mainly include redirecting intracellular electron transfer, broadening available photosynthetic microorganisms, reinforcing interfacial electron transfer and design high-performance devices with different configurations. Furthermore, three strategies developed to extract photosynthetic electrons were discussed. Among them, the strategy of using synthetic microbial consortia could circumvent the weak exoelectrogenic activity of photosynthetic microorganisms and the cytotoxicity of exogenous electron mediators, thus show great potential in enhancing the power output and prolonging the lifetime of BPV systems. Lastly, we prospected how to facilitate electron extraction and further improve the performance of BPV systems.
Collapse
Affiliation(s)
- Huawei Zhu
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Haowei Wang
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yanping Zhang
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - Yin Li
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China.
| |
Collapse
|
9
|
Baikie TK, Wey LT, Lawrence JM, Medipally H, Reisner E, Nowaczyk MM, Friend RH, Howe CJ, Schnedermann C, Rao A, Zhang JZ. Photosynthesis re-wired on the pico-second timescale. Nature 2023; 615:836-840. [PMID: 36949188 DOI: 10.1038/s41586-023-05763-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 01/26/2023] [Indexed: 03/24/2023]
Abstract
Photosystems II and I (PSII, PSI) are the reaction centre-containing complexes driving the light reactions of photosynthesis; PSII performs light-driven water oxidation and PSI further photo-energizes harvested electrons. The impressive efficiencies of the photosystems have motivated extensive biological, artificial and biohybrid approaches to 're-wire' photosynthesis for higher biomass-conversion efficiencies and new reaction pathways, such as H2 evolution or CO2 fixation1,2. Previous approaches focused on charge extraction at terminal electron acceptors of the photosystems3. Electron extraction at earlier steps, perhaps immediately from photoexcited reaction centres, would enable greater thermodynamic gains; however, this was believed impossible with reaction centres buried at least 4 nm within the photosystems4,5. Here, we demonstrate, using in vivo ultrafast transient absorption (TA) spectroscopy, extraction of electrons directly from photoexcited PSI and PSII at early points (several picoseconds post-photo-excitation) with live cyanobacterial cells or isolated photosystems, and exogenous electron mediators such as 2,6-dichloro-1,4-benzoquinone (DCBQ) and methyl viologen. We postulate that these mediators oxidize peripheral chlorophyll pigments participating in highly delocalized charge-transfer states after initial photo-excitation. Our results challenge previous models that the photoexcited reaction centres are insulated within the photosystem protein scaffold, opening new avenues to study and re-wire photosynthesis for biotechnologies and semi-artificial photosynthesis.
Collapse
Affiliation(s)
- Tomi K Baikie
- Cavendish Laboratory, University of Cambridge, Cambridge, UK
| | - Laura T Wey
- Department of Biochemistry, University of Cambridge, Cambridge, UK
- Department of Life Technologies, University of Turku, Turku, Finland
| | - Joshua M Lawrence
- Department of Biochemistry, University of Cambridge, Cambridge, UK
- Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge, UK
| | | | - Erwin Reisner
- Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge, UK
| | - Marc M Nowaczyk
- Plant Biochemistry, Ruhr University Bochum, Bochum, Germany
- Department of Biochemistry, University of Rostock, Rostock, Germany
| | | | | | | | - Akshay Rao
- Cavendish Laboratory, University of Cambridge, Cambridge, UK.
| | - Jenny Z Zhang
- Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge, UK.
| |
Collapse
|
10
|
Li J, Liang H, Li Y, Shi J. Interfacial assembly of photosystem II on nanotubular V2O5/TiO2 for photocurrent generation. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2023.131230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
|
11
|
Atkinson JT, Chavez MS, Niman CM, El-Naggar MY. Living electronics: A catalogue of engineered living electronic components. Microb Biotechnol 2023; 16:507-533. [PMID: 36519191 PMCID: PMC9948233 DOI: 10.1111/1751-7915.14171] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Revised: 09/26/2022] [Accepted: 11/01/2022] [Indexed: 12/23/2022] Open
Abstract
Biology leverages a range of electrical phenomena to extract and store energy, control molecular reactions and enable multicellular communication. Microbes, in particular, have evolved genetically encoded machinery enabling them to utilize the abundant redox-active molecules and minerals available on Earth, which in turn drive global-scale biogeochemical cycles. Recently, the microbial machinery enabling these redox reactions have been leveraged for interfacing cells and biomolecules with electrical circuits for biotechnological applications. Synthetic biology is allowing for the use of these machinery as components of engineered living materials with tuneable electrical properties. Herein, we review the state of such living electronic components including wires, capacitors, transistors, diodes, optoelectronic components, spin filters, sensors, logic processors, bioactuators, information storage media and methods for assembling these components into living electronic circuits.
Collapse
Affiliation(s)
- Joshua T Atkinson
- Department of Physics and Astronomy, University of Southern California, Los Angeles, California, USA
| | - Marko S Chavez
- Department of Physics and Astronomy, University of Southern California, Los Angeles, California, USA
| | - Christina M Niman
- Department of Physics and Astronomy, University of Southern California, Los Angeles, California, USA
| | - Mohamed Y El-Naggar
- Department of Physics and Astronomy, University of Southern California, Los Angeles, California, USA.,Department of Biological Sciences, University of Southern California, Los Angeles, California, USA.,Department of Chemistry, University of Southern California, Los Angeles, California, USA
| |
Collapse
|
12
|
Schneider H, Lai B, Krömer J. Utilizing Cyanobacteria in Biophotovoltaics: An Emerging Field in Bioelectrochemistry. ADVANCES IN BIOCHEMICAL ENGINEERING/BIOTECHNOLOGY 2023; 183:281-302. [PMID: 36441187 DOI: 10.1007/10_2022_212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Anthropogenic global warming is driven by the increasing energy demand and the still dominant use of fossil energy carriers to meet these needs. New carbon-neutral energy sources are urgently needed to solve this problem. Biophotovoltaics, a member of the so-called bioelectrochemical systems family, will provide an important piece of the energy puzzle. It aims to harvest the electrons from sunlight-driven water splitting using the natural oxygenic photosystem (e.g., of cyanobacteria) and utilize them in the form of, e.g., electricity or hydrogen. Several key aspects of biophotovoltaics have been intensively studied in recent years like physicochemical properties of electrodes or efficient wiring of microorganisms to electrodes. Yet, the exact mechanisms of electron transfer between the biocatalyst and the electrode remain unresolved today. Most research is conducted on microscale reactors generating small currents over short time-scales, but multiple experiments have shown biophotovoltaics great potential with lab-scale reactors producing currents over weeks to months. Although biophotovoltaics is still in its infancy with many open research questions to be addressed, new promising results from various labs around the world suggest an important opportunity for biophotovoltaics in the decades to come. In this chapter, we will introduce the concept of biophotovoltaics, summarize its recent key progress, and finally critically discuss the potentials and challenges for future rational development of biophotovoltaics.
Collapse
Affiliation(s)
- Hans Schneider
- Department of Solar Materials, Helmholtz Center for Environmental Research, Leipzig, Germany.
| | - Bin Lai
- Department of Solar Materials, Helmholtz Center for Environmental Research, Leipzig, Germany
| | - Jens Krömer
- Department of Solar Materials, Helmholtz Center for Environmental Research, Leipzig, Germany
| |
Collapse
|
13
|
Bedendi G, De Moura Torquato LD, Webb S, Cadoux C, Kulkarni A, Sahin S, Maroni P, Milton RD, Grattieri M. Enzymatic and Microbial Electrochemistry: Approaches and Methods. ACS MEASUREMENT SCIENCE AU 2022; 2:517-541. [PMID: 36573075 PMCID: PMC9783092 DOI: 10.1021/acsmeasuresciau.2c00042] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 08/12/2022] [Accepted: 08/15/2022] [Indexed: 06/17/2023]
Abstract
The coupling of enzymes and/or intact bacteria with electrodes has been vastly investigated due to the wide range of existing applications. These span from biomedical and biosensing to energy production purposes and bioelectrosynthesis, whether for theoretical research or pure applied industrial processes. Both enzymes and bacteria offer a potential biotechnological alternative to noble/rare metal-dependent catalytic processes. However, when developing these biohybrid electrochemical systems, it is of the utmost importance to investigate how the approaches utilized to couple biocatalysts and electrodes influence the resulting bioelectrocatalytic response. Accordingly, this tutorial review starts by recalling some basic principles and applications of bioelectrochemistry, presenting the electrode and/or biocatalyst modifications that facilitate the interaction between the biotic and abiotic components of bioelectrochemical systems. Focus is then directed toward the methods used to evaluate the effectiveness of enzyme/bacteria-electrode interaction and the insights that they provide. The basic concepts of electrochemical methods widely employed in enzymatic and microbial electrochemistry, such as amperometry and voltammetry, are initially presented to later focus on various complementary methods such as spectroelectrochemistry, fluorescence spectroscopy and microscopy, and surface analytical/characterization techniques such as quartz crystal microbalance and atomic force microscopy. The tutorial review is thus aimed at students and graduate students approaching the field of enzymatic and microbial electrochemistry, while also providing a critical and up-to-date reference for senior researchers working in the field.
Collapse
Affiliation(s)
- Giada Bedendi
- Department
of Inorganic and Analytical Chemistry, Faculty of Sciences, University of Geneva, Quai Ernest-Ansermet 30, 1211 Geneva 4, Switzerland
| | | | - Sophie Webb
- Department
of Inorganic and Analytical Chemistry, Faculty of Sciences, University of Geneva, Quai Ernest-Ansermet 30, 1211 Geneva 4, Switzerland
- National
Centre of Competence in Research (NCCR) Catalysis, University of Geneva, Quai Ernest-Ansermet 30, 1211 Geneva 4, Switzerland
| | - Cécile Cadoux
- Department
of Inorganic and Analytical Chemistry, Faculty of Sciences, University of Geneva, Quai Ernest-Ansermet 30, 1211 Geneva 4, Switzerland
- National
Centre of Competence in Research (NCCR) Catalysis, University of Geneva, Quai Ernest-Ansermet 30, 1211 Geneva 4, Switzerland
| | - Amogh Kulkarni
- Department
of Inorganic and Analytical Chemistry, Faculty of Sciences, University of Geneva, Quai Ernest-Ansermet 30, 1211 Geneva 4, Switzerland
| | - Selmihan Sahin
- Department
of Inorganic and Analytical Chemistry, Faculty of Sciences, University of Geneva, Quai Ernest-Ansermet 30, 1211 Geneva 4, Switzerland
| | - Plinio Maroni
- Department
of Inorganic and Analytical Chemistry, Faculty of Sciences, University of Geneva, Quai Ernest-Ansermet 30, 1211 Geneva 4, Switzerland
| | - Ross D. Milton
- Department
of Inorganic and Analytical Chemistry, Faculty of Sciences, University of Geneva, Quai Ernest-Ansermet 30, 1211 Geneva 4, Switzerland
- National
Centre of Competence in Research (NCCR) Catalysis, University of Geneva, Quai Ernest-Ansermet 30, 1211 Geneva 4, Switzerland
| | - Matteo Grattieri
- Dipartimento
di Chimica, Università degli Studi
di Bari “Aldo Moro”, via E. Orabona 4, Bari 70125, Italy
- IPCF-CNR
Istituto per i Processi Chimico Fisici, Consiglio Nazionale delle Ricerche, via E. Orabona 4, Bari 70125, Italy
| |
Collapse
|
14
|
Kalathil S, Miller M, Reisner E. Microbial Fermentation of Polyethylene Terephthalate (PET) Plastic Waste for the Production of Chemicals or Electricity. Angew Chem Int Ed Engl 2022; 61:e202211057. [PMID: 36103351 PMCID: PMC9828132 DOI: 10.1002/anie.202211057] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Indexed: 01/12/2023]
Abstract
Ideonella sakaiensis (I. sakaiensis) can grow on polyethylene terephthalate (PET) as the major carbon and energy source. Previous work has shown that PET conversion in the presence of oxygen released carbon dioxide and water while yielding adenosine triphosphate (ATP) through oxidative phosphorylation. This study demonstrates that I. sakaiensis is a facultative anaerobe that ferments PET to the feedstock chemicals acetate and ethanol in the absence of oxygen. In addition to PET, the pure monomer ethylene glycol (EG), the intermediate product ethanol, and the carbohydrate fermentation test substance maltose can also serve as fermenting substrates. Co-culturing of I. sakaiensis with the electrogenic and acetate-consuming Geobacter sulfurreducens produced electricity from PET or EG. This newly identified plastic fermentation process by I. sakaiensis provides thus a novel biosynthetic route to produce high-value chemicals or electricity from plastic waste streams.
Collapse
Affiliation(s)
- Shafeer Kalathil
- Yusuf Hamied Department of ChemistryUniversity of CambridgeCambridgeCB2 1EWUK
| | - Melanie Miller
- Yusuf Hamied Department of ChemistryUniversity of CambridgeCambridgeCB2 1EWUK
| | - Erwin Reisner
- Yusuf Hamied Department of ChemistryUniversity of CambridgeCambridgeCB2 1EWUK
| |
Collapse
|
15
|
Thong CH, Priyanga N, Ng FL, Pappathi M, Periasamy V, Phang SM, Gnana kumar G. Metal organic frameworks (MOFs) as potential anode materials for improving power generation from algal biophotovoltaic (BPV) platforms. Catal Today 2022. [DOI: 10.1016/j.cattod.2021.07.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
|
16
|
Hatano J, Kusama S, Tanaka K, Kohara A, Miyake C, Nakanishi S, Shimakawa G. NADPH production in dark stages is critical for cyanobacterial photocurrent generation: a study using mutants deficient in oxidative pentose phosphate pathway. PHOTOSYNTHESIS RESEARCH 2022; 153:113-120. [PMID: 35182311 DOI: 10.1007/s11120-022-00903-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Accepted: 01/16/2022] [Indexed: 06/14/2023]
Abstract
Live cyanobacteria and algae integrated onto an extracellular electrode can generate a light-induced current (i.e., a photocurrent). Although the photocurrent is expected to be correlated with the redox environment of the photosynthetic cells, the relationship between the photocurrent and the cellular redox state is poorly understood. Here, we investigated the effect of the reduced nicotinamide adenine dinucleotide phosphate [NADP(H)] redox level of cyanobacterial cells (before light exposure) on the photocurrent using several mutants (Δzwf, Δgnd, and ΔglgP) deficient in the oxidative pentose phosphate (OPP) pathway, which is the metabolic pathway that produces NADPH in darkness. The NAD(P)H redox level and photocurrent in the cyanobacterium Synechocystis sp. PCC 6803 were measured noninvasively. Dysfunction of the OPP pathway led to oxidation of the photosynthetic NADPH pool in darkness. In addition, photocurrent induction was retarded and the current density was lower in Δzwf, Δgnd, and ΔglgP than in wild-type cells. Exogenously added glucose compensated the phenotype of ΔglgP and drove the OPP pathway in the mutant, resulting in an increase in the photocurrent. The results indicated that NADPH accumulated by the OPP pathway before illumination is a key factor for the generation of a photocurrent. In addition, measuring the photocurrent can be a non-invasive approach to estimate the cellular redox level related to NADP(H) pool in cyanobacteria.
Collapse
Affiliation(s)
- Jiro Hatano
- Research Center for Solar Energy Chemistry, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka, 560-8631, Japan
| | - Shoko Kusama
- Research Center for Solar Energy Chemistry, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka, 560-8631, Japan
| | - Kenya Tanaka
- Research Center for Solar Energy Chemistry, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka, 560-8631, Japan
- Engineering Biology Research Center, Kobe University, Kobe, Japan
| | - Ayaka Kohara
- Graduate School of Agricultural Science, Kobe University, 1-1 Rokkodai, Nada, Kobe, 657-8501, Japan
| | - Chikahiro Miyake
- Graduate School of Agricultural Science, Kobe University, 1-1 Rokkodai, Nada, Kobe, 657-8501, Japan
| | - Shuji Nakanishi
- Research Center for Solar Energy Chemistry, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka, 560-8631, Japan.
- Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives, Osaka University, Suita, Osaka, 565-0871, Japan.
| | - Ginga Shimakawa
- Research Center for Solar Energy Chemistry, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka, 560-8631, Japan.
- Department of Bioscience, School of Biological and Environmental Sciences, Kwansei-Gakuin University, 2-1 Gakuen, Sanda, Hyogo, 669-1337, Japan.
| |
Collapse
|
17
|
Shlosberg Y, Schuster G, Adir N. Harnessing photosynthesis to produce electricity using cyanobacteria, green algae, seaweeds and plants. FRONTIERS IN PLANT SCIENCE 2022; 13:955843. [PMID: 35968083 PMCID: PMC9363842 DOI: 10.3389/fpls.2022.955843] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Accepted: 07/04/2022] [Indexed: 06/15/2023]
Abstract
The conversion of solar energy into electrical current by photosynthetic organisms has the potential to produce clean energy. Life on earth depends on photosynthesis, the major mechanism for biological conversion of light energy into chemical energy. Indeed, billions of years of evolution and adaptation to extreme environmental habitats have resulted in highly efficient light-harvesting and photochemical systems in the photosynthetic organisms that can be found in almost every ecological habitat of our world. In harnessing photosynthesis to produce green energy, the native photosynthetic system is interfaced with electrodes and electron mediators to yield bio-photoelectrochemical cells (BPECs) that transform light energy into electrical power. BPECs utilizing plants, seaweeds, unicellular photosynthetic microorganisms, thylakoid membranes or purified complexes, have been studied in attempts to construct efficient and non-polluting BPECs to produce electricity or hydrogen for use as green energy. The high efficiency of photosynthetic light-harvesting and energy production in the mostly unpolluting processes that make use of water and CO2 and produce oxygen beckons us to develop this approach. On the other hand, the need to use physiological conditions, the sensitivity to photoinhibition as well as other abiotic stresses, and the requirement to extract electrons from the system are challenging. In this review, we describe the principles and methods of the different kinds of BPECs that use natural photosynthesis, with an emphasis on BPECs containing living oxygenic photosynthetic organisms. We start with a brief summary of BPECs that use purified photosynthetic complexes. This strategy has produced high-efficiency BPECs. However, the lifetimes of operation of these BPECs are limited, and the preparation is laborious and expensive. We then describe the use of thylakoid membranes in BPECs which requires less effort and usually produces high currents but still suffers from the lack of ability to self-repair damage caused by photoinhibition. This obstacle of the utilization of photosynthetic systems can be significantly reduced by using intact living organisms in the BPEC. We thus describe here progress in developing BPECs that make use of cyanobacteria, green algae, seaweeds and higher plants. Finally, we discuss the future challenges of producing high and longtime operating BPECs for practical use.
Collapse
Affiliation(s)
- Yaniv Shlosberg
- Grand Technion Energy Program, Technion - Israel Institute of Technology, Haifa, Israel
- Schulich Faculty of Chemistry, Technion - Israel Institute of Technology, Haifa, Israel
| | - Gadi Schuster
- Grand Technion Energy Program, Technion - Israel Institute of Technology, Haifa, Israel
- Faculty of Biology, Technion - Israel Institute of Technology, Haifa, Israel
| | - Noam Adir
- Grand Technion Energy Program, Technion - Israel Institute of Technology, Haifa, Israel
- Schulich Faculty of Chemistry, Technion - Israel Institute of Technology, Haifa, Israel
| |
Collapse
|
18
|
Ahiahonu EK, Anku WW, Roopnarain A, Green E, Serepa-Dlamini MH, Govender PP. Exploring indigenous freshwater chlorophytes in integrated biophotovoltaic system for simultaneous wastewater treatment, heavy metal biosorption, CO 2 biofixation and biodiesel generation. Bioelectrochemistry 2022; 147:108208. [PMID: 35872372 DOI: 10.1016/j.bioelechem.2022.108208] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 06/23/2022] [Accepted: 07/09/2022] [Indexed: 11/26/2022]
Abstract
The study explored the combined photosynthetic activities of two green microalgal species, Tetradesmus obliquus and Tetradesmus reginae, on an integrated biophotovoltaic (BPV) platform for simultaneous wastewater treatment, toxic metal biosorption, carbon biofixation, bioelectricity generation and biodiesel production. The experimental setup comprised of a dual-chambered BPV with copper anode surrounded by T. obliquus in BG11 media, and copper cathode with T. reginae in municipal wastewater separated by Nafion 117 membrane. The study reported a maximum power density of 0.344 Wm-2 at a cell potential of 0.415 V with external resistance of 1000 Ω and 0.3268 V maximum open-circuit voltage. The wastewater electrical conductivity and pH increased from 583 ± 22 to 2035 ± 29.31 mS/cm and 7.403 ± 0.174 to 8.263 ± 0.055 respectively, signifying increased photosynthetic and electrochemical activities. Residual nitrogen, phosphorus, chemical oxygen demand, arsenic, cadmium, chromium and lead removal efficiencies by T. reginae were 100%, 80.68%, 71.91%, 47.6%, 88.82%, 71.24% and 92.96%, respectively. T. reginae accumulated maximum biomass of 0.605 ± 0.033 g/L with a CO2 biosequestration rate of 0.166 ± 0.010 gCO2/L/day and 42.40 ± 1.166% lipid content. Methyl palmitate, methyl undecanoate and 13-octadecenoic acid with relative abundances of 37.24%, 24.80% and 12.02%, respectively were confirmed.
Collapse
Affiliation(s)
- Elvis Kodzo Ahiahonu
- Department of Chemical Sciences, University of Johannesburg, Doornfontein Campus, P.O. Box 17011, Johannesburg 2028, South Africa; Environmental Protection Agency, P.O Box MB 326, Accra, Ghana
| | - William Wilson Anku
- Department of Chemical Sciences, University of Johannesburg, Doornfontein Campus, P.O. Box 17011, Johannesburg 2028, South Africa; CSIR-Water Research Institute, P. O. Box M. 32, Accra, Ghana
| | - Ashira Roopnarain
- Microbiology and Environmental Biotechnology Research Group, Institute for Soil, Climate and Water- Agricultural Research Council, Private Bag X79, Pretoria 0001, South Africa
| | - Ezekiel Green
- Department of Biotechnology and Food Technology, Faculty of Science, University of Johannesburg, Doornfontein Campus, PO Box 17011, Doornfontein, Johannesburg 2028, South Africa
| | - Mahloro Hope Serepa-Dlamini
- Department of Biotechnology and Food Technology, Faculty of Science, University of Johannesburg, Doornfontein Campus, PO Box 17011, Doornfontein, Johannesburg 2028, South Africa
| | - Penny Poomani Govender
- Department of Chemical Sciences, University of Johannesburg, Doornfontein Campus, P.O. Box 17011, Johannesburg 2028, South Africa.
| |
Collapse
|
19
|
Chen X, Lawrence JM, Wey LT, Schertel L, Jing Q, Vignolini S, Howe CJ, Kar-Narayan S, Zhang JZ. 3D-printed hierarchical pillar array electrodes for high-performance semi-artificial photosynthesis. NATURE MATERIALS 2022; 21:811-818. [PMID: 35256790 DOI: 10.1038/s41563-022-01205-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 01/18/2022] [Indexed: 06/14/2023]
Abstract
The rewiring of photosynthetic biomachineries to electrodes is a forward-looking semi-artificial route for sustainable bio-electricity and fuel generation. Currently, it is unclear how the electrode and biomaterial interface can be designed to meet the complex requirements for high biophotoelectrochemical performance. Here we developed an aerosol jet printing method for generating hierarchical electrode structures using indium tin oxide nanoparticles. We printed libraries of micropillar array electrodes varying in height and submicrometre surface features, and studied the energy/electron transfer processes across the bio-electrode interfaces. When wired to the cyanobacterium Synechocystis sp. PCC 6803, micropillar array electrodes with microbranches exhibited favourable biocatalyst loading, light utilization and electron flux output, ultimately almost doubling the photocurrent of state-of-the-art porous structures of the same height. When the micropillars' heights were increased to 600 µm, milestone mediated photocurrent densities of 245 µA cm-2 (the closest thus far to theoretical predictions) and external quantum efficiencies of up to 29% could be reached. This study demonstrates how bio-energy from photosynthesis could be more efficiently harnessed in the future and provide new tools for three-dimensional electrode design.
Collapse
Affiliation(s)
- Xiaolong Chen
- Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge, UK
| | | | - Laura T Wey
- Department of Biochemistry, University of Cambridge, Cambridge, UK
| | - Lukas Schertel
- Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge, UK
| | - Qingshen Jing
- Department of Materials Science and Metallurgy, University of Cambridge, Cambridge, UK
| | - Silvia Vignolini
- Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge, UK
| | | | - Sohini Kar-Narayan
- Department of Materials Science and Metallurgy, University of Cambridge, Cambridge, UK
| | - Jenny Z Zhang
- Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge, UK.
| |
Collapse
|
20
|
Decomposing biophotovoltaic current density profiles using the Hilbert-Huang transform reveals influences of circadian clock on cyanobacteria exoelectrogenesis. Sci Rep 2022; 12:10962. [PMID: 35768500 PMCID: PMC9243294 DOI: 10.1038/s41598-022-15111-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 04/14/2022] [Indexed: 11/21/2022] Open
Abstract
Electrons from cyanobacteria photosynthetic and respiratory systems are implicated in current generated in biophotovoltaic (BPV) devices. However, the pathway that electrons follow to electrodes remains largely unknown, limiting progress of applied research. Here we use Hilbert–Huang Transforms to decompose Synechococcus elongatus sp. PCC7942 BPV current density profiles into physically meaningful oscillatory components, and compute their instantaneous frequencies. We develop hypotheses for the genesis of the oscillations via repeat experiments with iron-depleted and 20% CO\documentclass[12pt]{minimal}
\usepackage{amsmath}
\usepackage{wasysym}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{amsbsy}
\usepackage{mathrsfs}
\usepackage{upgreek}
\setlength{\oddsidemargin}{-69pt}
\begin{document}$${_2}$$\end{document}2 enriched biofilms. The oscillations exhibit rhythms that are consistent with the state of the art cyanobacteria circadian model, and putative exoelectrogenic pathways. In particular, we observe oscillations consistent with: rhythmic D1:1 (photosystem II core) expression; circadian-controlled glycogen accumulation; circadian phase shifts under modified intracellular %ATP; and circadian period shortening in the absence of the iron-sulphur protein LdpA. We suggest that the extracted oscillations may be used to reverse-identify proteins and/or metabolites responsible for cyanobacteria exoelectrogenesis.
Collapse
|
21
|
Order-of-magnitude enhancement in photocurrent generation of Synechocystis sp. PCC 6803 by outer membrane deprivation. Nat Commun 2022; 13:3067. [PMID: 35654796 PMCID: PMC9163127 DOI: 10.1038/s41467-022-30764-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Accepted: 05/17/2022] [Indexed: 12/24/2022] Open
Abstract
Biophotovoltaics (BPV) generates electricity from reducing equivalent(s) produced by photosynthetic organisms by exploiting a phenomenon called extracellular electron transfer (EET), where reducing equivalent(s) is transferred to external electron acceptors. Although cyanobacteria have been extensively studied for BPV because of their high photosynthetic activity and ease of handling, their low EET activity poses a limitation. Here, we show an order-of-magnitude enhancement in photocurrent generation of the cyanobacterium Synechocystis sp. PCC 6803 by deprivation of the outer membrane, where electrons are suggested to stem from pathway(s) downstream of photosystem I. A marked enhancement of EET activity itself is verified by rapid reduction of exogenous electron acceptor, ferricyanide. The extracellular organic substances, including reducing equivalent(s), produced by this cyanobacterium serve as respiratory substrates for other heterotrophic bacteria. These findings demonstrate that the outer membrane is a barrier that limits EET. Therefore, depriving this membrane is an effective approach to exploit the cyanobacterial reducing equivalent(s). The low extracellular electron transfer activity hampers the application of cyanobacteria in biophotovoltaics. Here, the authors report an order-of-magnitude enhancement in photocurrent generation of the cyanobacterium by deprivation of the outer cell membrane.
Collapse
|
22
|
Morlock S, Subramanian SK, Zouni A, Lisdat F. Bio-inorganic hybrid structures for direct electron transfer to photosystem I in photobioelectrodes. Biosens Bioelectron 2022; 214:114495. [DOI: 10.1016/j.bios.2022.114495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 05/31/2022] [Accepted: 06/19/2022] [Indexed: 11/02/2022]
|
23
|
Buscemi G, Vona D, Stufano P, Labarile R, Cosma P, Agostiano A, Trotta M, Farinola GM, Grattieri M. Bio-Inspired Redox-Adhesive Polydopamine Matrix for Intact Bacteria Biohybrid Photoanodes. ACS APPLIED MATERIALS & INTERFACES 2022; 14:26631-26641. [PMID: 35639658 PMCID: PMC9204692 DOI: 10.1021/acsami.2c02410] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 04/20/2022] [Indexed: 05/24/2023]
Abstract
Interfacing intact and metabolically active photosynthetic bacteria with abiotic electrodes requires both establishing extracellular electron transfer and immobilizing the biocatalyst on electrode surfaces. Artificial approaches for photoinduced electron harvesting through redox polymers reported in literature require the separate synthesis of artificial polymeric matrices and their subsequent combination with bacterial cells, making the development of biophotoanodes complex and less sustainable. Herein, we report a one-pot biocompatible and sustainable approach, inspired by the byssus of mussels, that provides bacterial cells adhesion on multiple surfaces under wet conditions to obtain biohybrid photoanodes with facilitated photoinduced electron harvesting. Purple bacteria were utilized as a model organism, as they are of great interest for the development of photobioelectrochemical systems for H2 and NH3 synthesis, biosensing, and bioremediation purposes. The polydopamine matrix preparation strategy allowed the entrapment of active purple bacteria cells by initial oxygenic polymerization followed by electrochemical polymerization. Our results unveil that the deposition of bacterial cells with simultaneous polymerization of polydopamine on the electrode surface enables a 5-fold enhancement in extracellular electron transfer at the biotic/abiotic interface while maintaining the viability of the cells. The presented approach paves the way for a more sustainable development of biohybrid photoelectrodes.
Collapse
Affiliation(s)
- Gabriella Buscemi
- Dipartimento
di Chimica, Università degli Studi
di Bari “Aldo Moro”, via E. Orabona 4, Bari 70125, Italy
- IPCF-CNR
Istituto per i Processi Chimico Fisici, Consiglio Nazionale delle Ricerche, via E. Orabona 4, Bari 70125, Italy
| | - Danilo Vona
- Dipartimento
di Chimica, Università degli Studi
di Bari “Aldo Moro”, via E. Orabona 4, Bari 70125, Italy
| | - Paolo Stufano
- CNR-NANOTEC,
Institute of Nanotechnology, Consiglio Nazionale
delle Ricerche, via E. Orabona 4, Bari 70125, Italy
| | - Rossella Labarile
- Dipartimento
di Chimica, Università degli Studi
di Bari “Aldo Moro”, via E. Orabona 4, Bari 70125, Italy
- IPCF-CNR
Istituto per i Processi Chimico Fisici, Consiglio Nazionale delle Ricerche, via E. Orabona 4, Bari 70125, Italy
| | - Pinalysa Cosma
- Dipartimento
di Chimica, Università degli Studi
di Bari “Aldo Moro”, via E. Orabona 4, Bari 70125, Italy
- IPCF-CNR
Istituto per i Processi Chimico Fisici, Consiglio Nazionale delle Ricerche, via E. Orabona 4, Bari 70125, Italy
| | - Angela Agostiano
- Dipartimento
di Chimica, Università degli Studi
di Bari “Aldo Moro”, via E. Orabona 4, Bari 70125, Italy
- IPCF-CNR
Istituto per i Processi Chimico Fisici, Consiglio Nazionale delle Ricerche, via E. Orabona 4, Bari 70125, Italy
| | - Massimo Trotta
- IPCF-CNR
Istituto per i Processi Chimico Fisici, Consiglio Nazionale delle Ricerche, via E. Orabona 4, Bari 70125, Italy
| | - Gianluca M. Farinola
- Dipartimento
di Chimica, Università degli Studi
di Bari “Aldo Moro”, via E. Orabona 4, Bari 70125, Italy
| | - Matteo Grattieri
- Dipartimento
di Chimica, Università degli Studi
di Bari “Aldo Moro”, via E. Orabona 4, Bari 70125, Italy
- IPCF-CNR
Istituto per i Processi Chimico Fisici, Consiglio Nazionale delle Ricerche, via E. Orabona 4, Bari 70125, Italy
| |
Collapse
|
24
|
A biophotoelectrode based on boronic acid-modified Chlorella vulgaris cells integrated within a redox polymer. Bioelectrochemistry 2022; 146:108128. [DOI: 10.1016/j.bioelechem.2022.108128] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Revised: 03/22/2022] [Accepted: 03/29/2022] [Indexed: 12/31/2022]
|
25
|
Yoneda Y, Kito M, Mori D, Goto A, Kondo M, Miyasaka H, Nagasawa Y, Dewa T. Ultrafast Energy Transfer between Self-Assembled Fluorophore and Photosynthetic Light-Harvesting Complex 2 (LH2) in Lipid Bilayer. J Chem Phys 2022; 156:095101. [DOI: 10.1063/5.0077910] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
| | | | | | | | - Masaharu Kondo
- Life Science and Applied Chemistry, Nagoya Institute of Technology, Japan
| | - Hiroshi Miyasaka
- Frontier Materials Science, Osaka University Graduate School of Engineering Science School of Engineering Science, Japan
| | - Yutaka Nagasawa
- College of Lifesciences, Ritsumeikan University College of Life Sciences Graduate School of Life Sciences, Japan
| | - Takehisa Dewa
- Department of Life Science and Applied Chemistry, Nagoya Institute of Technology, Japan
| |
Collapse
|
26
|
Wang C, O'Hagan MP, Willner B, Willner I. Bioinspired Artificial Photosynthetic Systems. Chemistry 2021; 28:e202103595. [PMID: 34854505 DOI: 10.1002/chem.202103595] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Indexed: 12/18/2022]
Abstract
Mimicking photosynthesis using artificial systems, as a means for solar energy conversion and green fuel generation, is one of the holy grails of modern science. This perspective presents recent advances towards developing artificial photosynthetic systems. In one approach, native photosystems are interfaced with electrodes to yield photobioelectrochemical cells that transform light energy into electrical power. This is exemplified by interfacing photosystem I (PSI) and photosystem II (PSII) as an electrically contacted assembly mimicking the native Z-scheme, and by the assembly of an electrically wired PSI/glucose oxidase biocatalytic conjugate on an electrode support. Illumination of the functionalized electrodes led to light-induced generation of electrical power, or to the generation of photocurrents using glucose as the fuel. The second approach introduces supramolecular photosensitizer nucleic acid/electron acceptor complexes as functional modules for effective photoinduced electron transfer stimulating the subsequent biocatalyzed generation of NADPH or the Pt-nanoparticle-catalyzed evolution of molecular hydrogen. Application of the DNA machineries for scaling-up the photosystems is demonstrated. A third approach presents the integration of artificial photosynthetic modules into dynamic nucleic acid networks undergoing reversible reconfiguration or dissipative transient operation in the presence of auxiliary triggers. Control over photoinduced electron transfer reactions and photosynthetic transformations by means of the dynamic networks is demonstrated.
Collapse
Affiliation(s)
- Chen Wang
- Institute of Chemistry, The Minerva Centre for Bio-Hybrid Complex Systems, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Michael P O'Hagan
- Institute of Chemistry, The Minerva Centre for Bio-Hybrid Complex Systems, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Bilha Willner
- Institute of Chemistry, The Minerva Centre for Bio-Hybrid Complex Systems, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Itamar Willner
- Institute of Chemistry, The Minerva Centre for Bio-Hybrid Complex Systems, The Hebrew University of Jerusalem, Jerusalem, Israel
| |
Collapse
|
27
|
A biophotoelectrochemical approach to unravelling the role of cyanobacterial cell structures in exoelectrogenesis. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.139214] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
|
28
|
Weliwatte NS, Grattieri M, Minteer SD. Rational design of artificial redox-mediating systems toward upgrading photobioelectrocatalysis. Photochem Photobiol Sci 2021; 20:1333-1356. [PMID: 34550560 PMCID: PMC8455808 DOI: 10.1007/s43630-021-00099-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Accepted: 09/03/2021] [Indexed: 12/23/2022]
Abstract
Photobioelectrocatalysis has recently attracted particular research interest owing to the possibility to achieve sunlight-driven biosynthesis, biosensing, power generation, and other niche applications. However, physiological incompatibilities between biohybrid components lead to poor electrical contact at the biotic-biotic and biotic-abiotic interfaces. Establishing an electrochemical communication between these different interfaces, particularly the biocatalyst-electrode interface, is critical for the performance of the photobioelectrocatalytic system. While different artificial redox mediating approaches spanning across interdisciplinary research fields have been developed in order to electrically wire biohybrid components during bioelectrocatalysis, a systematic understanding on physicochemical modulation of artificial redox mediators is further required. Herein, we review and discuss the use of diffusible redox mediators and redox polymer-based approaches in artificial redox-mediating systems, with a focus on photobioelectrocatalysis. The future possibilities of artificial redox mediator system designs are also discussed within the purview of present needs and existing research breadth.
Collapse
Affiliation(s)
- N Samali Weliwatte
- Department of Chemistry, University of Utah, Salt Lake City, UT, 84112, USA
| | - Matteo Grattieri
- Dipartimento Di Chimica, Università Degli Studi Di Bari "Aldo Moro", Via E. Orabona 4, 70125, Bari, Italy.
- IPCF-CNR Istituto Per I Processi Chimico Fisici, Consiglio Nazionale Delle Ricerche, Via E. Orabona 4, 70125, Bari, Italy.
| | - Shelley D Minteer
- Department of Chemistry, University of Utah, Salt Lake City, UT, 84112, USA.
| |
Collapse
|
29
|
Zhou S, Guo J, Dai Z, Liu C, Zhao J, Gao Z, Song YY. Engineering Homochiral MOFs in TiO 2 Nanotubes as Enantioselective Photoelectrochemical Electrode for Chiral Recognition. Anal Chem 2021; 93:12067-12074. [PMID: 34432414 DOI: 10.1021/acs.analchem.1c02326] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Enantioselective sensing of chiral molecules is an important issue for both biomedical research and the pharmaceutical industry. Here, an enantioselective photoelectrochemical (PEC) sensor was constructed by integrating TiO2 nanotubes (NTs) with metal-organic frameworks (MOFs) for the identification of enantiomers. TiO2 NTs prepared by electrochemical anodization can not only be used as the PEC platform but also as the metal-ion precursor to react with terephthalic acid (BDC) to form MIL-125(Ti) in situ. A postsynthetic exchange (PSE) method was used for exchanging the ligand of MIL-125 by 2-aminoterephthalic acid (BDC-NH2) for further functionalization. Homochirality was then successfully introduced into achiral MIL-125-NH2 by postsynthetic modification (PSM) with l-histidine (l-His). The resulting homochiral metal-organic frameworks (MOF)-in-NT architecture exhibits excellent discrimination ability for the chiral recognition of 3,4-dihydroxyphenylalanine (l/d-DOPA) enantiomers. Moreover, by adjusting the charge-carrier separation-induced photocurrent variation mechanism, the as-proposed homochiral PEC electrode exhibits a broad application potential for the discrimination of enantiomers. Because of the construction of binder-free monochiral MOF-in-NT structure directly on a Ti-metal substrate, the valuable feature is that the PEC sensing platform can be used directly, thereby providing a stable, simplified, and low-cost sensing device for the recognition of chiral enantiomers.
Collapse
Affiliation(s)
- Shanshan Zhou
- College of Sciences, Northeastern University, Shenyang 110004, China
| | - Junli Guo
- College of Sciences, Northeastern University, Shenyang 110004, China
| | - Zhenqing Dai
- College of Sciences, Northeastern University, Shenyang 110004, China
| | - Changyong Liu
- College of Sciences, Northeastern University, Shenyang 110004, China
| | - Junjian Zhao
- College of Sciences, Northeastern University, Shenyang 110004, China
| | - Zhida Gao
- College of Sciences, Northeastern University, Shenyang 110004, China
| | - Yan-Yan Song
- College of Sciences, Northeastern University, Shenyang 110004, China
| |
Collapse
|
30
|
Ye J, Hu A, Ren G, Chen M, Zhou S, He Z. Biophotoelectrochemistry for renewable energy and environmental applications. iScience 2021; 24:102828. [PMID: 34368649 PMCID: PMC8326206 DOI: 10.1016/j.isci.2021.102828] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Biophotoelectrochemistry (BPEC) is an interdisciplinary research field and combines bioelectrochemistry and photoelectrochemistry through the utilization of the catalytic abilities of biomachineries and light harvesters to accomplish the production of energy or chemicals driven by solar energy. The BPEC process may act as a new approach for sustainable green chemistry and waste minimization. This review provides the state-of-the-art introduction of BPEC basics and systems, with a focus on light harvesters and biocatalysts, configurations, photoelectron transfer mechanisms, and the potential applications in energy and environment. Several examples of BPEC applications are discussed including H2 production, CO2 reduction, chemical synthesis, pollution control, and biogeochemical cycle of elements. The challenges about BPEC systems are identified and potential solutions are proposed. The review aims to encourage further research of BPEC toward development of practical BPEC systems for energy and environmental applications.
Collapse
Affiliation(s)
- Jie Ye
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Andong Hu
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Guoping Ren
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Man Chen
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Shungui Zhou
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Zhen He
- Department of Energy, Environmental and Chemical Engineering, Washington University in St. Louis, St. Louis, MO 63130, USA
| |
Collapse
|
31
|
Sayegh A, Perego LA, Arderiu Romero M, Escudero L, Delacotte J, Guille‐Collignon M, Grimaud L, Bailleul B, Lemaître F. Finding Adapted Quinones for Harvesting Electrons from Photosynthetic Algae Suspensions. ChemElectroChem 2021. [DOI: 10.1002/celc.202100757] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Adnan Sayegh
- PASTEUR Département de Chimie Ecole Normale Supérieure PSL University, Sorbonne Université CNRS, 75005 Paris France
| | - Luca A. Perego
- Laboratoire des biomolécules (LBM) Département de chimie Sorbonne Université École normale supérieure PSL University, Sorbonne Université CNRS, 75005 Paris France
| | - Marc Arderiu Romero
- PASTEUR Département de Chimie Ecole Normale Supérieure PSL University, Sorbonne Université CNRS, 75005 Paris France
- Laboratory of Membrane and Molecular Physiology at IBPC UMR 7141 CNRS/Sorbonne Université 13 rue Pierre et Marie Curie 75005 Paris France
| | - Louis Escudero
- PASTEUR Département de Chimie Ecole Normale Supérieure PSL University, Sorbonne Université CNRS, 75005 Paris France
| | - Jérôme Delacotte
- PASTEUR Département de Chimie Ecole Normale Supérieure PSL University, Sorbonne Université CNRS, 75005 Paris France
| | - Manon Guille‐Collignon
- PASTEUR Département de Chimie Ecole Normale Supérieure PSL University, Sorbonne Université CNRS, 75005 Paris France
| | - Laurence Grimaud
- Laboratoire des biomolécules (LBM) Département de chimie Sorbonne Université École normale supérieure PSL University, Sorbonne Université CNRS, 75005 Paris France
| | - Benjamin Bailleul
- Laboratory of Membrane and Molecular Physiology at IBPC UMR 7141 CNRS/Sorbonne Université 13 rue Pierre et Marie Curie 75005 Paris France
| | - Frédéric Lemaître
- PASTEUR Département de Chimie Ecole Normale Supérieure PSL University, Sorbonne Université CNRS, 75005 Paris France
| |
Collapse
|
32
|
Weliwatte NS, Grattieri M, Simoska O, Rhodes Z, Minteer SD. Unbranched Hybrid Conducting Redox Polymers for Intact Chloroplast-Based Photobioelectrocatalysis. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:7821-7833. [PMID: 34132548 DOI: 10.1021/acs.langmuir.1c01167] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Photobioelectrocatalysis (PBEC) adopts the sophistication and sustainability of photosynthetic units to convert solar energy into electrical energy. However, the electrically insulating outer membranes of photosynthetic units hinder efficient extracellular electron transfer from photosynthetic redox centers to an electrode in photobioelectrocatalytic systems. Among the artificial redox-mediating approaches used to enhance electrochemical communication at this biohybrid interface, conducting redox polymers (CRPs) are characterized by high intrinsic electric conductivities for efficient charge transfer. A majority of these CRPs constitute peripheral redox pendants attached to a conducting backbone by a linker. The consequently branched CRPs necessitate maintaining synergistic interactions between the pendant, linker, and backbone for optimal mediator performance. Herein, an unbranched, metal-free CRP, polydihydroxy aniline (PDHA), which has its redox moiety embedded in the polymer mainchain, is used as an exogenous redox mediator and an immobilization matrix at the biohybrid interface. As a proof of concept, the relatively complex membrane system of spinach chloroplasts is used as the photobioelectrocatalyst of choice. A "mixed" deposition of chloroplasts and PDHA generated a 2.4-fold photocurrent density increment. An alternative "layered" PDHA-chloroplast deposition, which was used to control panchromatic light absorbance by the intensely colored PDHA competing with the photoactivity of chloroplasts, generated a 4.2-fold photocurrent density increment. The highest photocurrent density recorded with intact chloroplasts was achieved by the "layered" deposition when used in conjunction with the diffusible redox mediator 2,6-dichlorobenzoquinone (-48 ± 3 μA cm-2). Our study effectively expands the scope of germane CRPs in PBEC, emphasizing the significance of the rational selection of CRPs for electrically insulating photobioelectrocatalysts and of the holistic modulation of the CRP-mediated biohybrids for optimal performance.
Collapse
Affiliation(s)
- N Samali Weliwatte
- Department of Chemistry, University of Utah, Salt Lake City, Utah 84112, United States
| | - Matteo Grattieri
- Dipartimento di Chimica, Università degli Studi di Bari "Aldo Moro", via E. Orabona 4, Bari 70125, Italy
- IPCF-CNR Istituto per i Processi Chimico Fisici, Consiglio Nazionale delle Ricerche, via E. Orabona 4, Bari 70125, Italy
| | - Olja Simoska
- Department of Chemistry, University of Utah, Salt Lake City, Utah 84112, United States
| | - Zayn Rhodes
- Department of Chemistry, University of Utah, Salt Lake City, Utah 84112, United States
| | - Shelley D Minteer
- Department of Chemistry, University of Utah, Salt Lake City, Utah 84112, United States
| |
Collapse
|
33
|
Lee J, Shin H, Kang C, Kim S. Solar Energy Conversion through Thylakoid Membranes Wired by Osmium Redox Polymer and Indium Tin Oxide Nanoparticles. CHEMSUSCHEM 2021; 14:2216-2225. [PMID: 33754497 DOI: 10.1002/cssc.202100288] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 03/11/2021] [Indexed: 06/12/2023]
Abstract
For several decades, much attention has been paid to thylakoid membranes (TMs) as photocatalysts for converting solar light to electricity. Despite extensive research, current technology provides only limited photocurrents. Here, a novel method based on TM-composite material was developed for achieving high photocurrent. When a thin film composed of TMs, osmium redox polymer (Os-RP), and indium tin oxide nanoparticles (ITOnp) was formed on a porous graphite surface, appreciable photocurrent as high as 0.5 mA cm-2 was achieved at 0.4 V vs. Ag/AgCl. Each component plays its own role in transferring electrons from TMs to the anode, resulting in sharp drop in photocurrent with missing any component. Optimization between these three components showed 1 : 0.5 : 30 (TM/Os-RP/ITOnp) was the best ratio. Action spectra confirmed that TMs was the origin of photocurrent. It was inferred from blocking experiments using 3-(3,4-dichlorophenyl)-1,1-dimethylurea as an inhibitor that about 41 % of photocurrent was transferred from QA in photosystem II to the electrode via Os-RP and ITOnp. Quantum efficiencies at 430 and 660 nm were 12.2 and 18.5 %, respectively. Turnover frequency for water oxidation depended upon the amount of the composite. A complete cell with Pt/C cathode produced Pmax of 122 μW cm-2 at 758 μA cm-2 under one sun illumination, which is the highest power density to our knowledge. This study opened a possibility of using TMs as photocatalysts for solar energy conversion.
Collapse
Affiliation(s)
- Jinhwan Lee
- Department of Systems Biotechnology, Konkuk Institute of Technology, Konkuk University, 120 Neudong-ro, Gwangjin-gu, Seoul, 05029, Korea
| | - Hyosul Shin
- Department of Chemistry, Jeonbuk National University, 567 Baekje-daero, Jeonju, Jeonbuk, 54896, Korea
| | - Chan Kang
- Department of Chemistry, Jeonbuk National University, 567 Baekje-daero, Jeonju, Jeonbuk, 54896, Korea
| | - Sunghyun Kim
- Department of Systems Biotechnology, Konkuk Institute of Technology, Konkuk University, 120 Neudong-ro, Gwangjin-gu, Seoul, 05029, Korea
| |
Collapse
|
34
|
Linnemann J, Kanokkanchana K, Tschulik K. Design Strategies for Electrocatalysts from an Electrochemist’s Perspective. ACS Catal 2021. [DOI: 10.1021/acscatal.0c04118] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Julia Linnemann
- Faculty of Chemistry and Biochemistry, Analytical Chemistry II, Ruhr University Bochum, Universitätsstr. 150, ZEMOS, 44801 Bochum, Germany
| | - Kannasoot Kanokkanchana
- Faculty of Chemistry and Biochemistry, Analytical Chemistry II, Ruhr University Bochum, Universitätsstr. 150, ZEMOS, 44801 Bochum, Germany
| | - Kristina Tschulik
- Faculty of Chemistry and Biochemistry, Analytical Chemistry II, Ruhr University Bochum, Universitätsstr. 150, ZEMOS, 44801 Bochum, Germany
| |
Collapse
|
35
|
Tanaka K, Shimakawa G, Kusama S, Harada T, Kato S, Nakanishi S. Ferrihydrite Reduction by Photosynthetic Synechocystis sp. PCC 6803 and Its Correlation With Electricity Generation. Front Microbiol 2021; 12:650832. [PMID: 33763051 PMCID: PMC7982531 DOI: 10.3389/fmicb.2021.650832] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Accepted: 02/16/2021] [Indexed: 11/29/2022] Open
Abstract
Microbial extracellular electron transfer (EET) to solid-state electron acceptors such as anodes and metal oxides, which was originally identified in dissimilatory metal-reducing bacteria, is a key process in microbial electricity generation and the biogeochemical cycling of metals. Although it is now known that photosynthetic microorganisms can also generate (photo)currents via EET, which has attracted much interest in the field of biophotovoltaics, little is known about the reduction of metal (hydr)oxides via photosynthetic microbial EET. The present work quantitatively assessed the reduction of ferrihydrite in conjunction with the EET of the photosynthetic microbe Synechocystis sp. PCC 6803. Microbial reduction of ferrihydrite was found to be initiated in response to light but proceeded at higher rates when exogenous glucose was added, even under dark conditions. These results indicate that current generation from Synechocystis cells does not always need light irradiation. The qualitative trends exhibited by the ferrihydrite reduction rates under various conditions showed significant correlation with those of the microbial currents. Notably, the maximum concentration of Fe(II) generated by the cyanobacterial cells under dark conditions in the presence of glucose was comparable to the levels observed in the photic layers of Fe-rich microbial mats.
Collapse
Affiliation(s)
- Kenya Tanaka
- Graduate School of Engineering Science, Osaka University, Toyonaka, Japan
| | - Ginga Shimakawa
- Research Center for Solar Energy Chemistry, Osaka University, Toyonaka, Japan
| | - Shoko Kusama
- Research Center for Solar Energy Chemistry, Osaka University, Toyonaka, Japan
| | - Takashi Harada
- Research Center for Solar Energy Chemistry, Osaka University, Toyonaka, Japan
| | - Souichiro Kato
- Research Center for Solar Energy Chemistry, Osaka University, Toyonaka, Japan.,Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology, Sapporo, Japan
| | - Shuji Nakanishi
- Graduate School of Engineering Science, Osaka University, Toyonaka, Japan.,Research Center for Solar Energy Chemistry, Osaka University, Toyonaka, Japan
| |
Collapse
|
36
|
Clifford ER, Bradley RW, Wey LT, Lawrence JM, Chen X, Howe CJ, Zhang JZ. Phenazines as model low-midpoint potential electron shuttles for photosynthetic bioelectrochemical systems. Chem Sci 2021; 12:3328-3338. [PMID: 34164103 PMCID: PMC8179378 DOI: 10.1039/d0sc05655c] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Accepted: 01/14/2021] [Indexed: 11/21/2022] Open
Abstract
Bioelectrochemical approaches for energy conversion rely on efficient wiring of natural electron transport chains to electrodes. However, state-of-the-art exogenous electron mediators give rise to significant energy losses and, in the case of living systems, long-term cytotoxicity. Here, we explored new selection criteria for exogenous electron mediation by examining phenazines as novel low-midpoint potential molecules for wiring the photosynthetic electron transport chain of the cyanobacterium Synechocystis sp. PCC 6803 to electrodes. We identified pyocyanin (PYO) as an effective cell-permeable phenazine that can harvest electrons from highly reducing points of photosynthesis. PYO-mediated photocurrents were observed to be 4-fold higher than mediator-free systems with an energetic gain of 200 mV compared to the common high-midpoint potential mediator 2,6-dichloro-1,4-benzoquinone (DCBQ). The low-midpoint potential of PYO led to O2 reduction side-reactions, which competed significantly against photocurrent generation; the tuning of mediator concentration was important for outcompeting the side-reactions whilst avoiding acute cytotoxicity. DCBQ-mediated photocurrents were generally much higher but also decayed rapidly and were non-recoverable with fresh mediator addition. This suggests that the cells can acquire DCBQ-resistance over time. In contrast, PYO gave rise to steadier current enhancement despite the co-generation of undesirable reactive oxygen species, and PYO-exposed cells did not develop acquired resistance. Moreover, we demonstrated that the cyanobacteria can be genetically engineered to produce PYO endogenously to improve long-term prospects. Overall, this study established that energetic gains can be achieved via the use of low-potential phenazines in photosynthetic bioelectrochemical systems, and quantifies the factors and trade-offs that determine efficacious mediation in living bioelectrochemical systems.
Collapse
Affiliation(s)
- Eleanor R Clifford
- Department of Chemistry, University of Cambridge Lensfield Road Cambridge CB2 1EW UK
| | - Robert W Bradley
- Department of Life Sciences Sir Alexander Fleming Building, Imperial College SW7 2AZ UK
| | - Laura T Wey
- Department of Biochemistry, University of Cambridge Tennis Court Road Cambridge CB2 1QW UK
| | - Joshua M Lawrence
- Department of Biochemistry, University of Cambridge Tennis Court Road Cambridge CB2 1QW UK
| | - Xiaolong Chen
- Department of Chemistry, University of Cambridge Lensfield Road Cambridge CB2 1EW UK
| | - Christopher J Howe
- Department of Biochemistry, University of Cambridge Tennis Court Road Cambridge CB2 1QW UK
| | - Jenny Z Zhang
- Department of Chemistry, University of Cambridge Lensfield Road Cambridge CB2 1EW UK
| |
Collapse
|
37
|
Abstract
Transmembrane proteins involved in metabolic redox reactions and photosynthesis catalyse a plethora of key energy-conversion processes and are thus of great interest for bioelectrocatalysis-based applications. The development of membrane protein modified electrodes has made it possible to efficiently exchange electrons between proteins and electrodes, allowing mechanistic studies and potentially applications in biofuels generation and energy conversion. Here, we summarise the most common electrode modification and their characterisation techniques for membrane proteins involved in biofuels conversion and semi-artificial photosynthesis. We discuss the challenges of applications of membrane protein modified electrodes for bioelectrocatalysis and comment on emerging methods and future directions, including recent advances in membrane protein reconstitution strategies and the development of microbial electrosynthesis and whole-cell semi-artificial photosynthesis.
Collapse
|
38
|
Lee J, Cho H, Kim S. Enhanced Photocurrent Generation From a Single‐Mediated Photo‐Bioelectrochemical Cell Using Wild‐Type
Anabaena Variabilis
Dispersed in Solution. ChemElectroChem 2020. [DOI: 10.1002/celc.202001026] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Jinhwan Lee
- Department of Systems Biotechnology Konkuk Institute of Technology Konkuk University 120 Neudong-ro, Gwangjin-gu Seoul 05029 Korea
| | - Hyejun Cho
- Department of Systems Biotechnology Konkuk Institute of Technology Konkuk University 120 Neudong-ro, Gwangjin-gu Seoul 05029 Korea
| | - Sunghyun Kim
- Department of Systems Biotechnology Konkuk Institute of Technology Konkuk University 120 Neudong-ro, Gwangjin-gu Seoul 05029 Korea
| |
Collapse
|
39
|
Gacitua M, Urrejola C, Carrasco J, Vicuña R, Srain BM, Pantoja-Gutiérrez S, Leech D, Antiochia R, Tasca F. Use of a Thermophile Desiccation-Tolerant Cyanobacterial Culture and Os Redox Polymer for the Preparation of Photocurrent Producing Anodes. Front Bioeng Biotechnol 2020; 8:900. [PMID: 32974292 PMCID: PMC7471869 DOI: 10.3389/fbioe.2020.00900] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Accepted: 07/13/2020] [Indexed: 12/25/2022] Open
Abstract
Oxygenic photosynthesis conducted by cyanobacteria has dramatically transformed the geochemistry of our planet. These organisms have colonized most habitats, including extreme environments such as the driest warm desert on Earth: the Atacama Desert. In particular, cyanobacteria highly tolerant to desiccation are of particular interest for clean energy production. These microorganisms are promising candidates for designing bioelectrodes for photocurrent generation owing to their ability to perform oxygenic photosynthesis and to withstand long periods of desiccation. Here, we present bioelectrochemical assays in which graphite electrodes were modified with the extremophile cyanobacterium Gloeocapsopsis sp. UTEXB3054 for photocurrent generation. Optimum working conditions for photocurrent generation were determined by modifying directly graphite electrode with the cyanobacterial culture (direct electron transfer), as well as using an Os polymer redox mediator (mediated electron transfer). Besides showing outstanding photocurrent production for Gloeocapsopsis sp. UTEXB3054, both in direct and mediated electron transfer, our results provide new insights into the metabolic basis of photocurrent generation and the potential applications of such an assisted bioelectrochemical system in a worldwide scenario in which clean energies are imperative for sustainable development.
Collapse
Affiliation(s)
- Manuel Gacitua
- Departamento de Química de los Materiales, Facultad de Quiìmica y Biologiìa, Universidad de Santiago de Chile, Santiago, Chile
| | - Catalina Urrejola
- Departamento Genética Molecular y Microbiología, Facultad Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Javiera Carrasco
- Departamento de Química de los Materiales, Facultad de Quiìmica y Biologiìa, Universidad de Santiago de Chile, Santiago, Chile
| | - Rafael Vicuña
- Departamento Genética Molecular y Microbiología, Facultad Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Benjamín M Srain
- Departamento de Oceanografía and Centro de Investigación Oceanográfica COPAS Sur-Austral, Universidad de Concepción, Concepción, Chile
| | - Silvio Pantoja-Gutiérrez
- Departamento de Oceanografía and Centro de Investigación Oceanográfica COPAS Sur-Austral, Universidad de Concepción, Concepción, Chile
| | - Donal Leech
- School of Chemistry and Ryan Institute, National University of Ireland Galway, Galway, Ireland
| | - Riccarda Antiochia
- Department of Chemistry and Drug Technologies, Sapienza University of Rome, Rome, Italy
| | - Federico Tasca
- Departamento de Química de los Materiales, Facultad de Quiìmica y Biologiìa, Universidad de Santiago de Chile, Santiago, Chile
| |
Collapse
|
40
|
Okedi TI, Fisher AC, Yunus K. Quantitative analysis of the effects of morphological changes on extracellular electron transfer rates in cyanobacteria. BIOTECHNOLOGY FOR BIOFUELS 2020; 13:150. [PMID: 32863880 PMCID: PMC7449014 DOI: 10.1186/s13068-020-01788-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Accepted: 08/13/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Understanding the extracellular electron transport pathways in cyanobacteria is a major factor towards developing biophotovoltaics. Stressing cyanobacteria cells environmentally and then probing changes in physiology or metabolism following a significant change in electron transfer rates is a common approach for investigating the electron path from cell to electrode. However, such studies have not explored how the cells' concurrent morphological adaptations to the applied stresses affect electron transfer rates. In this paper, we establish a ratio to quantify this effect in mediated systems and apply it to Synechococcus elongatus sp. PCC7942 cells grown under different nutritional regimes. RESULTS The results provide evidence that wider and longer cells with larger surface areas have faster mediated electron transfer rates. For rod-shaped cells, increase in cell area as a result of cell elongation more than compensates for the associated decline in mass transfer coefficients, resulting in faster electron transfer. In addition, the results demonstrate that the extent to which morphological adaptations account for the changes in electron transfer rates changes over the bacterial growth cycle, such that investigations probing physiological and metabolic changes are meaningful only at certain time periods. CONCLUSION A simple ratio for quantitatively evaluating the effects of cell morphology adaptations on electron transfer rates has been defined. Furthermore, the study points to engineering cell shape, either via environmental conditioning or genetic engineering, as a potential strategy for improving the performance of biophotovoltaic devices.
Collapse
Affiliation(s)
- Tonny I. Okedi
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Phillipa Fawcett Drive, Cambridge, CB3 0AS UK
| | - Adrian C. Fisher
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Phillipa Fawcett Drive, Cambridge, CB3 0AS UK
- Cambridge Center for Advanced Research and Education in Singapore (CARES), 1 Create Way, #05-05 CREATE Tower, Singapore, 138602 Singapore
| | - Kamran Yunus
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Phillipa Fawcett Drive, Cambridge, CB3 0AS UK
| |
Collapse
|
41
|
Wang P, Zhao F, Hartmann V, Nowaczyk MM, Ruff A, Schuhmann W, Conzuelo F. Reassessing the rationale behind herbicide biosensors: The case of a photosystem II/redox polymer-based bioelectrode. Bioelectrochemistry 2020; 136:107597. [PMID: 32674005 DOI: 10.1016/j.bioelechem.2020.107597] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Revised: 07/04/2020] [Accepted: 07/04/2020] [Indexed: 01/12/2023]
Abstract
Interfacing photosynthetic protein complexes with electrodes is frequently used for the identification of electron transfer mechanisms and the fabrication of biosensors. Binding of herbicide compounds to the terminal plastoquinone QB at photosystem II (PSII) causes disruption of electron flow that is associated with a diminished performance of the associated biodevice. Thus, the principle of electron transport inhibition at PSII can be used for herbicide detection and has inspired the fabrication of several biosensors for this purpose. However, the biosensor performance may reveal a more complex behavior than generally expected. As we present here for a photobioelectrode constituted by PSII embedded in a redox polymer matrix, the effect caused by inhibitors does not only impact the electron transfer from PSII but also the properties of the polymer film used for immobilization and electrical wiring of the protein complexes. Incorporation of phenolic inhibitors into the polymer film surprisingly translates into enhanced photocurrents and, in particular cases, in a higher stability of the overall electrode architecture. The achieved results stress the importance to evaluate first the possible influence of analytes of interest on the biosensor architecture as a whole and provide important insights for consideration in future design of bioelectrochemical devices.
Collapse
Affiliation(s)
- Panpan Wang
- Analytical Chemistry - Center for Electrochemical Sciences (CES), Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Universitätsstr. 150, D-44780 Bochum, Germany
| | - Fangyuan Zhao
- Analytical Chemistry - Center for Electrochemical Sciences (CES), Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Universitätsstr. 150, D-44780 Bochum, Germany
| | - Volker Hartmann
- Plant Biochemistry, Faculty of Biology and Biotechnology, Ruhr University Bochum, Universitätsstr. 150, D-44780 Bochum, Germany
| | - Marc M Nowaczyk
- Plant Biochemistry, Faculty of Biology and Biotechnology, Ruhr University Bochum, Universitätsstr. 150, D-44780 Bochum, Germany
| | - Adrian Ruff
- Analytical Chemistry - Center for Electrochemical Sciences (CES), Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Universitätsstr. 150, D-44780 Bochum, Germany
| | - Wolfgang Schuhmann
- Analytical Chemistry - Center for Electrochemical Sciences (CES), Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Universitätsstr. 150, D-44780 Bochum, Germany.
| | - Felipe Conzuelo
- Analytical Chemistry - Center for Electrochemical Sciences (CES), Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Universitätsstr. 150, D-44780 Bochum, Germany.
| |
Collapse
|
42
|
Grattieri M, Beaver K, Gaffney EM, Dong F, Minteer SD. Advancing the fundamental understanding and practical applications of photo-bioelectrocatalysis. Chem Commun (Camb) 2020; 56:8553-8568. [PMID: 32578607 DOI: 10.1039/d0cc02672g] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Photo-bioelectrocatalysis combines the natural and highly sophisticated process of photosynthesis in biological entities with an abiotic electrode surface, to perform semi-artificial photosynthesis. However, challenges must be overcome, from the establishment and understanding of the photoexcited electron harvesting process at the electrode to the electrochemical characterization of these biotic/abiotic systems, and their subsequent tuning for enhancing energy generation (chemical and/or electrical). This Feature Article discusses the various approaches utilized to tackle these challenges, particularly focusing on powerful multi-disciplinary approaches for understanding and improving photo-bioelectrocatalysis. Among them is the combination of experimental evidence and quantum mechanical calculations, the use of bioinformatics to understand photo-bioelectrocatalysis at a metabolic level, or bioengineering to improve and facilitate photo-bioelectrocatalysis. Key aspects for the future development of photo-bioelectrocatalysis are presented alongside future research needs and promising applications of semi-artificial photosynthesis.
Collapse
Affiliation(s)
- Matteo Grattieri
- Department of Chemistry, University of Utah, 315 S 1400 E Rm 2020, Salt Lake City, UT 84112, USA.
| | | | | | | | | |
Collapse
|
43
|
Beauzamy L, Delacotte J, Bailleul B, Tanaka K, Nakanishi S, Wollman FA, Lemaître F. Mediator-Microorganism Interaction in Microbial Solar Cell: a Fluo-Electrochemical Insight. Anal Chem 2020; 92:7532-7539. [PMID: 32352279 DOI: 10.1021/acs.analchem.9b05808] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Microbial solar cells that mainly rely on the use of photosynthesic organisms are a promising alternative to photovoltaics for solar electricity production. In that way, we propose a new approach involving electrochemistry and fluorescence techniques. The coupled setup Electro-Pulse-Amplitude-Modulation ("e-PAM") enables the simultaneous recording of the produced photocurrent and fluorescence signals from the photosynthetic chain. This methodology was validated with a suspension of green alga Chlamydomonas reinhardtii in interaction with an exogenous redox mediator (2,6-dichlorobenzoquinone; DCBQ). The balance between photosynthetic chain events (PSII photochemical yield, quenching) and the extracted electricity can be monitored overtime. More particularly, the nonphotochemical quenching induced by DCBQ mirrors the photocurrent. This setup thus helps to distinguish the electron harvesting from some side effects due to quinones in real time. It therefore paves the way for future analyses devoted to the choice of the experimental conditions (redox mediator, photosynthetic organisms, and so on) to find the best electron extraction.
Collapse
Affiliation(s)
- Léna Beauzamy
- PASTEUR, Département de Chimie, École Normale Supérieure, PSL University, Sorbonne Université, CNRS, 75005 Paris, France.,Institut de Biologie Physico-Chimique, UMR7141 Biologie du Chloroplaste et Perception de la Lumière Chez les Micro-Algues, 13 rue Pierre et Marie Curie, 75005 Paris, France
| | - Jérôme Delacotte
- PASTEUR, Département de Chimie, École Normale Supérieure, PSL University, Sorbonne Université, CNRS, 75005 Paris, France
| | - Benjamin Bailleul
- Institut de Biologie Physico-Chimique, UMR7141 Biologie du Chloroplaste et Perception de la Lumière Chez les Micro-Algues, 13 rue Pierre et Marie Curie, 75005 Paris, France
| | | | | | - Francis-André Wollman
- Institut de Biologie Physico-Chimique, UMR7141 Biologie du Chloroplaste et Perception de la Lumière Chez les Micro-Algues, 13 rue Pierre et Marie Curie, 75005 Paris, France
| | - Frédéric Lemaître
- PASTEUR, Département de Chimie, École Normale Supérieure, PSL University, Sorbonne Université, CNRS, 75005 Paris, France
| |
Collapse
|
44
|
Heidary N, Kornienko N, Kalathil S, Fang X, Ly KH, Greer HF, Reisner E. Disparity of Cytochrome Utilization in Anodic and Cathodic Extracellular Electron Transfer Pathways of Geobacter sulfurreducens Biofilms. J Am Chem Soc 2020; 142:5194-5203. [PMID: 32066233 PMCID: PMC7082794 DOI: 10.1021/jacs.9b13077] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Indexed: 12/18/2022]
Abstract
Extracellular electron transfer (EET) in microorganisms is prevalent in nature and has been utilized in functional bioelectrochemical systems. EET of Geobacter sulfurreducens has been extensively studied and has been revealed to be facilitated through c-type cytochromes, which mediate charge between the electrode and G. sulfurreducens in anodic mode. However, the EET pathway of cathodic conversion of fumarate to succinate is still under debate. Here, we apply a variety of analytical methods, including electrochemistry, UV-vis absorption and resonance Raman spectroscopy, quartz crystal microbalance with dissipation, and electron microscopy, to understand the involvement of cytochromes and other possible electron-mediating species in the switching between anodic and cathodic reaction modes. By switching the applied bias for a G. sulfurreducens biofilm coupled to investigating the quantity and function of cytochromes, as well as the emergence of Fe-containing particles on the cell membrane, we provide evidence of a diminished role of cytochromes in cathodic EET. This work sheds light on the mechanisms of G. sulfurreducens biofilm growth and suggests the possible existence of a nonheme, iron-involving EET process in cathodic mode.
Collapse
Affiliation(s)
- Nina Heidary
- Department
of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United
Kingdom
- Department
of Chemistry, Université de Montréal, Roger-Gaudry Building, Montreal, Quebec H3C 3J7, Canada
| | - Nikolay Kornienko
- Department
of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United
Kingdom
- Department
of Chemistry, Université de Montréal, Roger-Gaudry Building, Montreal, Quebec H3C 3J7, Canada
| | - Shafeer Kalathil
- Department
of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United
Kingdom
| | - Xin Fang
- Department
of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United
Kingdom
| | - Khoa H. Ly
- Department
of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United
Kingdom
- Fakultät
für Chemie und Lebensmittelchemie, Technische Universität Dresden, Dresden 01062, Germany
| | - Heather F. Greer
- Department
of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United
Kingdom
| | - Erwin Reisner
- Department
of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United
Kingdom
| |
Collapse
|
45
|
A three-dimensional hybrid electrode with electroactive microbes for efficient electrogenesis and chemical synthesis. Proc Natl Acad Sci U S A 2020; 117:5074-5080. [PMID: 32051251 PMCID: PMC7060665 DOI: 10.1073/pnas.1913463117] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Addressing the global challenge of sustainability calls for cost-effective and eco-friendly pathways to go beyond the existing energy-intense synthetic routes. Biohybrid electrochemical systems integrate electroactive bacteria with synthetic electrodes to leverage the power of biocatalysis for energy conversion and chemical synthesis. This work presents a three-dimensional electrode scaffold to couple the intracellular metabolism with extracellular redox transformations by means of electrochemistry. The large population of bacteria actively metabolizing within the electrode scaffold produces a benchmark current density. The biohybrid electrode can also carry out synthetic reactions within or beyond biochemical pathways driven by solar light. This hierarchical electrode provides a robust and versatile platform to wire bacteria’s intrinsic physiological functionalities with artificial electronics for sustainable energy conversion and chemical production. Integration of electroactive bacteria into electrodes combines strengths of intracellular biochemistry with electrochemistry for energy conversion and chemical synthesis. However, such biohybrid systems are often plagued with suboptimal electrodes, which limits the incorporation and productivity of the bacterial colony. Here, we show that an inverse opal-indium tin oxide electrode hosts a large population of current-producing Geobacter and attains a current density of 3 mA cm−2 stemming from bacterial respiration. Differential gene expression analysis revealed Geobacter’s transcriptional regulations to express more electron-relaying proteins when interfaced with electrodes. The electrode also allows coculturing with Shewanella for syntrophic electrogenesis, which grants the system additional flexibility in converting electron donors. The biohybrid electrode containing Geobacter can also catalyze the reduction of soluble fumarate and heterogenous graphene oxide, with electrons from an external power source or an irradiated photoanode. This biohybrid electrode represents a platform to employ live cells for sustainable power generation and biosynthesis.
Collapse
|
46
|
Grattieri M, Patterson S, Copeland J, Klunder K, Minteer SD. Purple Bacteria and 3D Redox Hydrogels for Bioinspired Photo-bioelectrocatalysis. CHEMSUSCHEM 2020; 13:230-237. [PMID: 31600418 DOI: 10.1002/cssc.201902116] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 09/18/2019] [Indexed: 06/10/2023]
Abstract
A major challenge for the implementation of intact bacterial cells in photo-bioelectrochemical systems remains the hindered extracellular electron transfer. This study focuses on purple bacteria, photosynthetic microorganisms particularly interesting for the development of bioelectrochemical systems because of their versatile metabolisms. Although soluble monomeric redox mediators have been proven as effective systems for electron transfer mediation, their application in the field is not preferable owing to their toxicity and unwanted release into the environment. An abiotic/biotic photoanode is reported in which a bioinspired redox mediating system is implemented in a 3D geometry allowing to "electrically wire" intact bacterial cells. The 3D photoanode decreased the overpotential required for harvesting photoexcited electrons, operating at +0.073 V versus the saturated calomel electrode (SCE). Accordingly, the overpotential was significantly reduced compared with a pioneering Os-redox polymer reported in literature, which required operation at +0.303 V versus SCE. These results provide the basis for further development of bio-photoanodes for light-powered biosensing and power generation.
Collapse
Affiliation(s)
- Matteo Grattieri
- Departments of Chemistry and Materials Science & Engineering, University of Utah, 315 S 1400 E Rm 2020, Salt Lake City, UT, 84112, USA
| | - Sarai Patterson
- Departments of Chemistry and Materials Science & Engineering, University of Utah, 315 S 1400 E Rm 2020, Salt Lake City, UT, 84112, USA
| | - Jeffrey Copeland
- Departments of Chemistry and Materials Science & Engineering, University of Utah, 315 S 1400 E Rm 2020, Salt Lake City, UT, 84112, USA
| | - Kevin Klunder
- Departments of Chemistry and Materials Science & Engineering, University of Utah, 315 S 1400 E Rm 2020, Salt Lake City, UT, 84112, USA
| | - Shelley D Minteer
- Departments of Chemistry and Materials Science & Engineering, University of Utah, 315 S 1400 E Rm 2020, Salt Lake City, UT, 84112, USA
| |
Collapse
|
47
|
Fang X, Kalathil S, Reisner E. Semi-biological approaches to solar-to-chemical conversion. Chem Soc Rev 2020; 49:4926-4952. [DOI: 10.1039/c9cs00496c] [Citation(s) in RCA: 92] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
This review provides an overview of the cross-disciplinary field of semi-artificial photosynthesis, which combines strengths of biocatalysis and artificial photosynthesis to develop new concepts and approaches for solar-to-chemical conversion.
Collapse
Affiliation(s)
- Xin Fang
- Department of Chemistry
- University of Cambridge
- Cambridge CB2 1EW
- UK
| | - Shafeer Kalathil
- Department of Chemistry
- University of Cambridge
- Cambridge CB2 1EW
- UK
| | - Erwin Reisner
- Department of Chemistry
- University of Cambridge
- Cambridge CB2 1EW
- UK
| |
Collapse
|
48
|
Zhang JZ, Reisner E. Advancing photosystem II photoelectrochemistry for semi-artificial photosynthesis. Nat Rev Chem 2019. [DOI: 10.1038/s41570-019-0149-4] [Citation(s) in RCA: 86] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
49
|
Tucci M, Bombelli P, Howe CJ, Vignolini S, Bocchi S, Schievano A. A Storable Mediatorless Electrochemical Biosensor for Herbicide Detection. Microorganisms 2019; 7:E630. [PMID: 31795453 PMCID: PMC6956157 DOI: 10.3390/microorganisms7120630] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 11/22/2019] [Accepted: 11/25/2019] [Indexed: 11/16/2022] Open
Abstract
A novel mediatorless photo-bioelectrochemical sensor operated with a biofilm of the cyanobacterium Synechocystis PCC6803 wt. for herbicide detection with long term stability (>20 days) was successfully developed and tested. Photoanodic current generation was obtained in the absence of artificial mediators. The inhibitory effect on photocurrent of three commonly used herbicides (i.e., atrazine, diuron, and paraquat) was used as a means of measuring their concentrations in aqueous solution. The injection of atrazine and diuron into the algal medium caused an immediate photocurrent drop due to the inhibition of photosynthetic electron transport. The detected concentrations were suitable for environmental analysis, as revealed by a comparison with the freshwater quality benchmarks set by the Environmental Protection Agency of the United States (US EPA). In contrast, paraquat caused an initial increase (~2 h) of the photocurrent effect of about 200%, as this compound can act as a redox mediator between the cells and the anode. A relatively long-term stability of the biosensor was demonstrated, by keeping anodes colonized with cyanobacterial biofilm in the dark at 4 °C. After 22 days of storage, the performance in terms of the photocurrent was comparable with the freshly prepared biosensor. This result was confirmed by the measurement of chlorophyll content, which demonstrated preservation of the cyanobacterial biofilm. The capacity of this biosensor to recover after a cold season or other prolonged environmental stresses could be a key advantage in field applications, such as in water bodies and agriculture. This study is a step forward in the biotechnological development and implementation of storable mediatorless electrochemical biosensors for herbicide detection.
Collapse
Affiliation(s)
- Matteo Tucci
- e-Bio Center, Department of Environmental Science and Policy, Università degli Studi di Milano, via Celoria 2, 20,133 Milan, Italy; (M.T.); (A.S.)
| | - Paolo Bombelli
- Dipartimento di Scienze e Politiche Ambientali, Università degli Studi di Milano, Via Celoria, 2, 20,133 Milano, Italy;
- Department of Biochemistry, University of Cambridge, Hopkins Building, Downing Site, Tennis Court Road, Cambridge CB2 1QW, UK;
| | - Christopher J. Howe
- Department of Biochemistry, University of Cambridge, Hopkins Building, Downing Site, Tennis Court Road, Cambridge CB2 1QW, UK;
| | - Silvia Vignolini
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, UK;
| | - Stefano Bocchi
- Dipartimento di Scienze e Politiche Ambientali, Università degli Studi di Milano, Via Celoria, 2, 20,133 Milano, Italy;
| | - Andrea Schievano
- e-Bio Center, Department of Environmental Science and Policy, Università degli Studi di Milano, via Celoria 2, 20,133 Milan, Italy; (M.T.); (A.S.)
| |
Collapse
|
50
|
Wey LT, Bombelli P, Chen X, Lawrence JM, Rabideau CM, Rowden SJL, Zhang JZ, Howe CJ. The Development of Biophotovoltaic Systems for Power Generation and Biological Analysis. ChemElectroChem 2019; 6:5375-5386. [PMID: 31867153 PMCID: PMC6899825 DOI: 10.1002/celc.201900997] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2019] [Revised: 08/29/2019] [Indexed: 11/05/2022]
Abstract
Biophotovoltaic systems (BPVs) resemble microbial fuel cells, but utilise oxygenic photosynthetic microorganisms associated with an anode to generate an extracellular electrical current, which is stimulated by illumination. Study and exploitation of BPVs have come a long way over the last few decades, having benefited from several generations of electrode development and improvements in wiring schemes. Power densities of up to 0.5 W m-2 and the powering of small electrical devices such as a digital clock have been reported. Improvements in standardisation have meant that this biophotoelectrochemical phenomenon can be further exploited to address biological questions relating to the organisms. Here, we aim to provide both biologists and electrochemists with a review of the progress of BPV development with a focus on biological materials, electrode design and interfacial wiring considerations, and propose steps for driving the field forward.
Collapse
Affiliation(s)
- Laura T. Wey
- Department of BiochemistryUniversity of CambridgeTennis Court RoadCambridgeCB2 1QWUK
| | - Paolo Bombelli
- Department of BiochemistryUniversity of CambridgeTennis Court RoadCambridgeCB2 1QWUK
- Dipartimento di Scienze e Politiche AmbientaliUniversità degli Studi di MilanoMilanItaly
| | - Xiaolong Chen
- Department of ChemistryUniversity of CambridgeLensfield RoadCambridgeCB1 2EWUK
| | - Joshua M. Lawrence
- Department of BiochemistryUniversity of CambridgeTennis Court RoadCambridgeCB2 1QWUK
| | - Clayton M. Rabideau
- Department of BiochemistryUniversity of CambridgeTennis Court RoadCambridgeCB2 1QWUK
- Department of Chemical Engineering and BiotechnologyUniversity of Cambridge Philippa Fawcett DrCambridgeCB3 0ASUK
| | - Stephen J. L. Rowden
- Department of BiochemistryUniversity of CambridgeTennis Court RoadCambridgeCB2 1QWUK
| | - Jenny Z. Zhang
- Department of ChemistryUniversity of CambridgeLensfield RoadCambridgeCB1 2EWUK
| | - Christopher J. Howe
- Department of BiochemistryUniversity of CambridgeTennis Court RoadCambridgeCB2 1QWUK
| |
Collapse
|