Nanoparticles as energy donors and acceptors in bionanohybrid systems

Sławski, Jakub; Grzyb, Joanna

doi:10.18388/abp.2019_2887

Cited by 5 publications

(4 citation statements)

References 142 publications

(168 reference statements)

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“…Both these attributes of AuNPs lead to the enhancement of photocurrent generation in μPSC. [34,35,80,83,85,86] Therefore, the enhanced interface between intracellular nanostructures and biomachinery allows more efficient energy transfer from photoexcited Au NPs to the biochemical pathway. Most of all, Au NPs, as they are chemically inert and biocompatible (shown with viability studies) in the host photosynthetic microorganism, allow for extended longevity.…”

Section: Mechanism Of Electron Transfer Between Au Np and Electrodes Of μPscmentioning

confidence: 99%

Gold Nanoparticle Interaction in Algae Enhancing Quantum Efficiency and Power Generation in Microphotosynthetic Power Cells

Kuruvinashetti

Pakkiriswami

Packirisamy

2021

Adv Energy and Sustain Res

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The necessity for sustainable energy production has driven the rapid development of technologies to harness solar energy effectively. The microphotosynthetic power cells (μPSC) aim to harness solar energy from living photosynthetic cells. Currently, the power density of the μPSC is low, due to several factors. One of the major impediments and challenges of the μPSC is its lower charge transfer efficiency between the photosynthetic microorganisms and the electrodes. Herein, the proposed strategy explores the interaction of gold nanoparticles (Au NPs) with photosynthetic microorganisms for enhanced power generation from the μPSC. Herein, the intracellular biocompatible, efficient light absorbers in the form of Au NPs are introduced. Translocation of gold colloidal solution of 25 μL of 50 μg mL−1 (253.8 μmol mL−1) concentration into 2 mL whole liquid culture of algal cells (Chlamydomonas reinhardtii: ≈1 million cells mL−1) enhances operational quantum yield (ϕ0) of the algal cells by 30.2% and power generation capability by 15.2% in μPSCs. Internalized Au NPs in the algal cells quench chlorophyll fluorescence, thereby contributing to increased photosynthetic efficiency. With multiple advantages such as light absorption capability, biocompatibility, and ability to transfer the electrons, Au NPs can efficiently harvest sunlight for enhanced power generation from the μPSC.

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Section: Mechanism Of Electron Transfer Between Au Np and Electrodes Of μPscmentioning

confidence: 99%

Gold Nanoparticle Interaction in Algae Enhancing Quantum Efficiency and Power Generation in Microphotosynthetic Power Cells

Kuruvinashetti

Pakkiriswami

Packirisamy

2021

Adv Energy and Sustain Res

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“…Colloidal quantum dots (QDs) are semiconductor nanocrystals known for their luminescence properties and the ability to transfer energy by resonance mechanisms as well as to donate photoinduced electrons to various acceptors or electrodes. − QDs are usually quasispheres of a few nanometers in diameter. In this research, we used core-only QDs composed of CdTe.…”

Section: Introductionmentioning

confidence: 99%

Quantum Dots Assembled with Photosynthetic Antennae on a Carbon Nanotube Platform: A Nanohybrid for the Enhancement of Light Energy Harvesting

Sławski,

Maciejewski,

Szukiewicz

et al. 2023

ACS Omega

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The construction of artificial systems for solar energy harvesting is still a challenge. There needs to be a light-harvesting antenna with a broad absorption spectrum and then the possibility to transfer harvested energy to the reaction center, converting photons into a storable form of energy. Bioinspired and bioderivative elements may help in achieving this aim. Here, we present an option for light harvesting: a nanobiohybrid of colloidal, semiconductor quantum dots (QDs) and natural photosynthetic antennae assembled on the surface of a carbon nanotube. For that, we used QDs of cadmium telluride and cyanobacterial phycobilisome rods (PBSr) or light-harvesting complex II (LHCII) of higher plants. For this nanobiohybrid, we confirmed composition and organization using infrared spectroscopy, X-ray photoelectron spectroscopy, and high-resolution confocal microscopy. Then, we proved that within such an assembly, there is a resonance energy transfer from QD to PBSr or LHCII. When such a nanobiohybrid was further combined with thylakoids, the energy was transferred to photosynthetic reaction centers and efficiently powered the photosystem I reaction center. The presented construct is proof of a general concept, combining interacting elements on a platform of a nanotube, allowing further variation within assembled elements.

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“…In a recent review, we broadly described the involvement of nanoparticles, including QDs, in both ET and RET. 14 Cytochromes, which basically means cellular pigments, 15 are reddish proteins with heme as their prosthetic group. CytC, which is the subject of this paper, is a soluble protein involved in mitochondrial respiration.…”

Section: ■ Introductionmentioning

confidence: 99%

“…For these reasons, QDs may potentially be applied in the construction of light-driven nanodevices for controlling cellular homeostasis. In a recent review, we broadly described the involvement of nanoparticles, including QDs, in both ET and RET …”

Section: Introductionmentioning

confidence: 99%

Competition between Photoinduced Electron Transfer and Resonance Energy Transfer in an Example of Substituted Cytochrome c–Quantum Dot Systems

et al. 2021

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Colloidal quantum dots (QDs) are nanoparticles that are able to photoreduce redox proteins by electron transfer (ET). QDs are also able to transfer energy by resonance energy transfer (RET). Here, we address the question of the competition between these two routes of QDs’ excitation quenching, using cadmium telluride QDs and cytochrome c (CytC) or its metal-substituted derivatives. We used both oxidized and reduced versions of native CytC, as well as fluorescent, nonreducible Zn(II)CytC, Sn(II)CytC, and metal-free porphyrin CytC. We found that all of the CytC versions quench QD fluorescence, although the interaction may be described differently in terms of static and dynamic quenching. QDs may be quenchers of fluorescent CytC derivatives, with significant differences in effectiveness depending on QD size. SnCytC and porphyrin CytC increased the rate of Fe(III)CytC photoreduction, and Fe(II)CytC slightly decreased the rate and ZnCytC presence significantly decreased the rate and final level of reduced FeCytC. These might be partially explained by the tendency to form a stable complex between protein and QDs, which promoted RET and collisional quenching. Our findings show that there is a net preference for photoinduced ET over other ways of energy transfer, at least partially, due to a lack of donors, regenerating a hole at QDs and leading to irreversibility of ET events. There may also be a common part of pathways leading to photoinduced ET and RET. The nature of synergistic action observed in some cases allows the hypothesis that RET may be an additional way to power up the ET.

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Nanoparticles as energy donors and acceptors in bionanohybrid systems

Cited by 5 publications

References 142 publications

Gold Nanoparticle Interaction in Algae Enhancing Quantum Efficiency and Power Generation in Microphotosynthetic Power Cells

Gold Nanoparticle Interaction in Algae Enhancing Quantum Efficiency and Power Generation in Microphotosynthetic Power Cells

Quantum Dots Assembled with Photosynthetic Antennae on a Carbon Nanotube Platform: A Nanohybrid for the Enhancement of Light Energy Harvesting

Competition between Photoinduced Electron Transfer and Resonance Energy Transfer in an Example of Substituted Cytochrome c–Quantum Dot Systems

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