Advancing photosystem II photoelectrochemistry for semi-artificial photosynthesis

Zhang, Jenny; Reisner, Erwin

doi:10.1038/s41570-019-0149-4

Cited by 182 publications

(178 citation statements)

References 117 publications

Supporting

Mentioning

168

Contrasting

Unclassified

Order By: Relevance

“…[97][98][99] Wiring PSII to an electrode allows the resulting biohybrid electrode to supply photoelectrons from water, and permits protein film-photoelectrochemistry (PF-PEC) to benchmark enzymatic activity in vitro, dissect photoinduced electron transfer pathways, and repurpose biogenic electrons to drive endergonic reactions. 90,100 Attempts to interface PSII with an electrode surface started several decades ago, 101 when isolated PSII was deposited on a Pt electrode and generated a photocurrent of a few microamperes. However, the minuscule amount of PSII loaded on the electrode renders in-depth studies and proof-of-concept demonstrations unfeasible.…”

Section: Water Oxidationmentioning

confidence: 99%

Semi-biological approaches to solar-to-chemical conversion

2020

Self Cite

View full text Add to dashboard Cite

show abstract

Section: Water Oxidationmentioning

confidence: 99%

Semi-biological approaches to solar-to-chemical conversion

2020

Self Cite

View full text Add to dashboard Cite

show abstract

“…If this functionality is even partly retained in hybrid membranes, then this model system could be used to investigate these fundamental processes, or, due to the ability of PSII to donate electrons to downstream inorganic systems, may have applications in future photo-electronic technologies. 66,67 Multiple studies have proposed that, by selectively switching on or off portions of the electron transfer energy process, various photochemical inhibitors can give an indirect measure of the activity of PSII. 68 Therefore, we performed a "photochemical assay" on hybrid membranes by monitoring changes to the chlorophyll fluorescence intensity (or lifetime), in response to these stimuli.…”

Section: Resultsmentioning

confidence: 99%

Understanding the photophysics and structural organization of photosynthetic proteins using model lipid membranes assembled from natural plant thylakoids

Meredith

Yoneda

Hancock

et al. 2020

Preprint

View full text Add to dashboard Cite

The light-harvesting (LH) biomembranes from photosynthetic organisms perform solar energy absorption and transfer with high efficiency. There is great interest in the nanoscale biophysics of photosynthesis, however, natural membranes are complex and highly curved so can be challenging to study. Here we present model photosynthetic “hybrid membranes” assembled from a combination of natural LH membranes and synthetic lipids deposited into a patterned polymerized lipid template on glass. This arrangement offers many advantages over previous model systems including: a sufficiently complex mixture of natural proteins to mimic the biological processes, a modular self-assembly mechanism, and a stabilizing template promoting the formation of supported lipid bilayers from complex natural membranes with high protein content (that would not otherwise form). These hybrid membranes can be used as a platform to delineate the complex relationship between LH energy pathways and membrane organization. Atomic force microscopy and fluorescence lifetime microscopy revealed that hybrid membranes have an elongated fluorescence lifetime (∼4 ns) compared to native membranes (∼0.5 ns), a direct consequence of reduced protein density and an uncoupling of protein-protein interactions. We observed the real time self-assembly and migration of LH proteins from natural membrane extracts into the hybrid membranes and monitored the photophysical state of the membranes at each stage. Finally, experiments utilizing our hybrid membranes suggest that assays currently used in the photosynthesis community to test the electron transfer activity of Photosystem II may have non-specific interactions with other proteins, implying that new methods are needed for reliable quantification of electron transfers in photosynthesis.

show abstract

“…1 Such investigations are pervasive in the area of solar technologies, where numerous studies aim at imitating and besting natural photosynthesis, including dye-sensitized solar cells (DSSCs), 2 photocatalytic water splitting, 3 and photoconversion of CO 2 into value-added products. 4 On the other hand, scientists are also known to draw inspiration from art. For example, the ancient Japanese art of paper cutting and folding, known as kirigami and origami, has been imitated to create unique materials and devices.…”

mentioning

confidence: 99%

Nature and Chinese Art Inspire Materials for Light Harvesting

Benetti

Liang

Rosei

2020

Matter

View full text Add to dashboard Cite

The Holy Grail of materials science and engineering is to understand and control structure-property relationships in materials systems, so as to attain the long-standing goal of materials by design. In this Preview, we describe recently synthesized hollow multi-shelled structures (HoMSs), a porous nanomaterial whose complex architecture was inspired both by nature and by the puzzle ball-an ancient Chinese artifact. Thanks to the precise control of structure and composition, HoMSs allow to sequentially harvest sunlight, leading to improved photocatalytic activity for hydrogen production from water.

show abstract

Advancing photosystem II photoelectrochemistry for semi-artificial photosynthesis

Cited by 182 publications

References 117 publications

Semi-biological approaches to solar-to-chemical conversion

Semi-biological approaches to solar-to-chemical conversion

Understanding the photophysics and structural organization of photosynthetic proteins using model lipid membranes assembled from natural plant thylakoids

Nature and Chinese Art Inspire Materials for Light Harvesting

Contact Info

Product

Resources

About