A bacteriorhodopsin-based biohybrid solar cell using carbon-based electrolyte and cathode components

Espinoza-Araya, Christopher; Starbird, Ricardo; Prasad, Edamana; Renugopalakrishnan, V.; Mulchandani, Ashok; Bruce, Barry D.; Villarreal, Claudia C.

doi:10.1016/j.bbabio.2023.148985

Cited by 4 publications

(3 citation statements)

References 57 publications

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“…Notably, rhodopsins retain their functionality even under extreme conditions, exhibiting remarkable efficiency at temperatures exceeding 140°C in dry form and 80°C in aqueous environments across a wide pH range from 0 to 12.2 (Chellamuthu et al., 2016 ). The feasibility of employing rhodopsins in photovoltaic systems has been extensively demonstrated (Espinoza‐Araya et al., 2023 ; Kanekar et al., 2020 ; Krivenkov et al., 2019 ). These devices can be classified into two primary categories: bio‐sensitised solar cells (BSSCs) and Bio‐enhanced photovoltaics (BEPVs).…”

Section: Rhodopsin‐driven Conversion Of Solar Energy To Electricitymentioning

confidence: 99%

“…BSSCs rely on rhodopsin as the primary photosensitiser, exploiting the energy generated by electron excitation from the highest occupied molecular orbital (HOMO) to the lowest unoccupied molecular orbital (LUMO), followed by electron injection into the substrate's conduction band. Despite the potential of such systems, BSSCs typically exhibit modest power conversion efficiencies (PCE) in the range of 0.1% to 0.2%, primarily due to poor band alignment between different stages, reliance on redox mechanisms and narrow absorbance bands (Chellamuthu et al., 2016 ; Espinoza‐Araya et al., 2023 ; Kanekar et al., 2020 ). To address these limitations, BEPVs emerge as an attractive alternative.…”

Section: Rhodopsin‐driven Conversion Of Solar Energy To Electricitymentioning

confidence: 99%

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Rhodopsin‐based light‐harvesting system for sustainable synthetic biology

Tu,

Saeed,

Huang

2024

Microbial Biotechnology

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Rhodopsins, a diverse class of light‐sensitive proteins found in various life domains, have attracted considerable interest for their potential applications in sustainable synthetic biology. These proteins exhibit remarkable photochemical properties, undergoing conformational changes upon light absorption that drive a variety of biological processes. Exploiting rhodopsin's natural properties could pave the way for creating sustainable and energy‐efficient technologies. Rhodopsin‐based light‐harvesting systems offer innovative solutions to a few key challenges in sustainable engineering, from bioproduction to renewable energy conversion. In this opinion article, we explore the recent advancements and future possibilities of employing rhodopsins for sustainable engineering, underscoring the transformative potential of these biomolecules.

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Section: Rhodopsin‐driven Conversion Of Solar Energy To Electricitymentioning

confidence: 99%

Section: Rhodopsin‐driven Conversion Of Solar Energy To Electricitymentioning

confidence: 99%

Rhodopsin‐based light‐harvesting system for sustainable synthetic biology

Tu,

Saeed,

Huang

2024

Microbial Biotechnology

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“…A semiartificial photosynthetic system typically comprises a solar-capture module, such as nanomaterials , or photoelectrochemical systems, , and a chemical conversion module, which can be enzymes , or living microbial cells. , Certain studies also employed biophotosensitizers in combination with chemical catalysts to achieve solar-driven chemical production. − Regarding the photoelectrochemical systems, they provide exceptional stability and allow for convenient real-time monitoring of their tunable photochemical and electrochemical properties. − In contrast, nanomaterials demonstrate exceptional configurability in broadband light absorption, surface charge, morphology, elemental composition, and band structure. ,− They closely match cellular organisms in size scale, affording a substantial contact area for electron transduction. With respect to the pure enzymes, they have direct contact with materials, rendering them efficient in electron acquisition. ,,− By rationally selecting enzymes and employing suitable conditions, novel cascade reactions toward target products can be catalyzed, such as the total synthesis of starch using CO 2 , along with recently developed artificial carbon fixation pathways. − While isolating, purifying, and preserving pure enzymes in vitro poses challenges, microbial cells offer distinct advantages .…”

Section: Introductionmentioning

confidence: 99%

Revisiting Solar Energy Flow in Nanomaterial-Microorganism Hybrid Systems

Liang,

Xiao,

Wang

et al. 2024

Chem. Rev.

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Nanomaterial-microorganism hybrid systems (NMHSs), integrating semiconductor nanomaterials with microorganisms, present a promising platform for broadband solar energy harvesting, high-efficiency carbon reduction, and sustainable chemical production. While studies underscore its potential in diverse solar-to-chemical energy conversions, prevailing NMHSs grapple with suboptimal energy conversion efficiency. Such limitations stem predominantly from an insufficient systematic exploration of the mechanisms dictating solar energy flow. This review provides a systematic overview of the notable advancements in this nascent field, with a particular focus on the discussion of three pivotal steps of energy flow: solar energy capture, cross-membrane energy transport, and energy conversion into chemicals. While key challenges faced in each stage are independently identified and discussed, viable solutions are correspondingly postulated. In view of the interplay of the three steps in affecting the overall efficiency of solar-to-chemical energy conversion, subsequent discussions thus take an integrative and systematic viewpoint to comprehend, analyze and improve the solar energy flow in the current NMHSs of different configurations, and highlighting the contemporary techniques that can be employed to investigate various aspects of energy flow within NMHSs. Finally, a concluding section summarizes opportunities for future research, providing a roadmap for the continued development and optimization of NMHSs.

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Recent progress of PY-IT-based all-polymer solar cells

Liu,

Sha,

Yin

et al. 2023

APL Energy

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All-polymer solar cells (all-PSCs), with their specific merits of superior operation stability and remarkable mechanical flexibility, have made significant progress and become an indispensable part of the field of organic solar cells (OSCs) in recent years. This progress has established them as an indispensable component of the OSC landscape. One of the key driving forces behind this advancement is the development of high-performance polymer acceptor materials. Notably, the emergence of cutting-edge Y series polymerized small-molecule acceptors such as PY-IT, PYT, PY-2Cl, PY-V-γ, and PYF-T-o has significantly narrowed the efficiency gap when compared to the OSCs relying on small-molecule acceptors. Here, we systematically delve into the recent development of PY-IT-based OSCs. First, we offer a detailed discussion about the device physics of PY-IT-based OSCs and then illustrate their achievements from three aspects: binary systems, ternary systems, and layer-by-layer structures. Moreover, current challenges and outlooks are proposed for future research directions. We expect that our work will inspire further breakthroughs and improvements in the fields of all-PSCs.

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A bacteriorhodopsin-based biohybrid solar cell using carbon-based electrolyte and cathode components

Cited by 4 publications

References 57 publications

Rhodopsin‐based light‐harvesting system for sustainable synthetic biology

Rhodopsin‐based light‐harvesting system for sustainable synthetic biology

Revisiting Solar Energy Flow in Nanomaterial-Microorganism Hybrid Systems

Recent progress of PY-IT-based all-polymer solar cells

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