Photobioelectrocatalysis of Intact Chloroplasts for Solar Energy Conversion

Hasan, Kamrul; Milton, Ross D.; Grattieri, Matteo; Wang, Tao; Stephanz, Megan; Minteer, Shelley D.

doi:10.1021/acscatal.7b00039

Cited by 60 publications

(72 citation statements)

References 66 publications

(85 reference statements)

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“…To visually gain an insight into the distribution of CDs in chloroplasts, CLSM was employed. As shown in Figure c,d, chloroplasts are lens shaped with an average diameter of 4–5 µm; it is apparent that chloroplasts are intact with an opaque, halo, and shiny appearance . Chloroplasts emit red autofluorescence because of the chlorophyll molecules.…”

Section: Resultsmentioning

confidence: 92%

Enhanced Biological Photosynthetic Efficiency Using Light‐Harvesting Engineering with Dual‐Emissive Carbon Dots

Zhang

et al. 2018

Adv Funct Materials

211

167

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Enhancing solar energy conversion is imperative and maximizing solar energy capture remains significant. Here, nanotechnology toward engineering hybrid photosystem involving biological photosynthetic chloroplasts and dualemissive carbon dots (CDs) is employed for improved photosynthesis by harnessing more effective light. Specifically, the as-prepared CDs show strong absorption in ultraviolet (UV) light region and exhibit intense blue and red light in water, which exactly match the absorption spectrum of chloroplasts. After coating the CDs on the surface of extracted chloroplasts, the hybrid photosystem produces 2.8 times more adenosine triphosphate (ATP) than chloroplasts themselves in vitro. Moreover, CD-induced enhancement of photosynthesis in living plant is proved as well, showing a maximum increase of 25% in electron transport rates over the leaves without CDs, demonstrating the effective nanobionics engineering of plant performance in vivo. This is the first report on employing the unique dual-emission trait of nanoparticles, especially the red emission, to augment photoabsorption of both extracted chloroplasts and intact leaves for enhanced photosynthetic properties. This work provides a promising strategy for engineering biological photosynthetic system with dual-emissive CDs to enhance solar energy conversion both in vivo and in vitro, and promotes the development in the field of nanobionic.

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Section: Resultsmentioning

confidence: 92%

Enhanced Biological Photosynthetic Efficiency Using Light‐Harvesting Engineering with Dual‐Emissive Carbon Dots

Zhang

et al. 2018

Adv Funct Materials

211

167

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“…Hasan et al (46) interfaced plant chloroplasts with a redox polymer to create photobioelectrochemical cells for photosynthetic energy conversion. A naphthoquinone-functionalized linear poly(ethylenimine) redox polymer was used as both the immobilization matrix and an electron transfer mediator for intact chloroplasts.…”

Section: Exogenous Bioaugmentationmentioning

confidence: 99%

Nanobiohybrids: Materials approaches for bioaugmentation

et al. 2020

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Nanobiohybrids, synthesized by integrating functional nanomaterials with living systems, have emerged as an exciting branch of research at the interface of materials engineering and biological science. Nanobiohybrids use synthetic nanomaterials to impart organisms with emergent properties outside their scope of evolution. Consequently, they endow new or augmented properties that are either innate or exogenous, such as enhanced tolerance against stress, programmed metabolism and proliferation, artificial photosynthesis, or conductivity. Advances in new materials design and processing technologies made it possible to tailor the physicochemical properties of the nanomaterials coupled with the biological systems. To date, many different types of nanomaterials have been integrated with various biological systems from simple biomolecules to complex multicellular organisms. Here, we provide a critical overview of recent developments of nanobiohybrids that enable new or augmented biological functions that show promise in high-tech applications across many disciplines, including energy harvesting, biocatalysis, biosensing, medicine, and robotics.

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“…This is why isolated thylakoid membranes or chloroplasts are also considered. [8][9][10][11][12] Yet, the lack of cell proliferation of these two strategies is an important issue and pushes toward the investigation of intact photosynthetic organisms. [13][14][15][16][17] However, the more complex the target is, the more difficult is the electron transport ways toward the electrode.…”

Section: Introductionmentioning

confidence: 99%

Diverting photosynthetic electrons from suspensions of Chlamydomonas reinhardtii algae - New insights using an electrochemical well device

Sayegh

Longatte

Buriez

et al. 2019

Electrochimica Acta

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In the last years, many strategies have been developed to benefit from oxygenic photosynthesis in the present context of renewable energies. To achieve this, bioelectricity may be produced by using photosynthetic components involved in anodic or cathodic compartments. In this respect, harvesting photosynthetic electrons from living biological systems appears to be an encouraging approach. However it raises the question of the most suitable electrochemical device. In this work, we describe and analyze the performances of an electrochemical device based on a millimeter sized well involving a gold surface as a working electrode. Photocurrents were generated by suspensions of Chlamydomonas reinhardtii algae using quinones as mediators under different experimental conditions. Chronoamperometry and cyclic voltammetry measurements gave insight into the use of this device to investigate important issues (harvesting and poisoning by quinones, photoinactivation…). Furthermore, by introducing a kinetic model originally developed for homogeneous catalytic systems, the kinetics of the electron diverting from this system (Chlamydomonas reinhardtii algae + 2,6-DCBQ + miniaturized setup) can be estimated. All these results demonstrate that this experimental configuration is suitable for future works devoted to the choice of the best parameters in terms of long lasting performances.

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Photobioelectrocatalysis of Intact Chloroplasts for Solar Energy Conversion

Cited by 60 publications

References 66 publications

Enhanced Biological Photosynthetic Efficiency Using Light‐Harvesting Engineering with Dual‐Emissive Carbon Dots

Enhanced Biological Photosynthetic Efficiency Using Light‐Harvesting Engineering with Dual‐Emissive Carbon Dots

Nanobiohybrids: Materials approaches for bioaugmentation

Diverting photosynthetic electrons from suspensions of Chlamydomonas reinhardtii algae - New insights using an electrochemical well device

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