Plasmon-stimulated biophotovoltaic cells based on thylakoid–AuNR conjugates

Abstract

Despite of high quantum efficiency of solar energy conversion by photosynthesis, practical development of photosynthetic solar energy has been limited so far. One of the main challenges is relatively poor...

3D Printing of Thylakoid-PEDOT:PSS Composite Electrode for Bio-Photoelectrochemical Cells

“…Crude TM was prepared with a modified protocol which was introduced previously. 9 Briefly, commercial spinach was purchased from a local market. Only the leaves were carefully separated from spinaches not to contain any vein.…”

“…A photoelectrochemical (PEC) cell generates electricity from light-triggered spontaneous electrochemical reactions. In PEC cells, inorganic materials are employed as electron donators and scavengers to operate the PEC cells. , Recently, bio-PEC (BPEC) cells which generate electricity from photosynthetic electrochemical reactions of plant cells, algal cells, or photosynthetic bacteria have been highlighted due to their environmental friendliness. − There have also been BPECs that generate hydrogen using photosynthetic bacteria or protein complexes. , Moreover, various photosynthetic BPEC cells have been investigated using isolated subcellular organelles or photosynthetic apparatuses such as thylakoid membranes (TMs), − photosystems (PSs), or light-harvesting complexes …”

Plasmonic protein electricity generator

“…Enhancements have been seen after placing Photosystem I complexes on a silver island film 93 and decorating thylakoid membranes with gold nanorods. 94 In solar cells using LHCII as a sensitiser, output was improved by including silver nanoprisms 95 or gold or silver nanospheres and nanoplates. 96 In the study most directly relevant to the present one, a 2.4-fold enhancement was seen when Rba.…”

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

“…Therefore, the Chla of photosynthetic cells receives more energy from the plasmon near field of AuNPs (Figure 11c). [83] It has also been shown that AuNPs alter the absorption and fluorescence of photosynthetic pigments like chlorophyll and pheophytin due to the plasmon resonance effect and photoinduced electron transfer. [84] The internalized Au NPs in the photosynthetic cells alongside the native extracellular electron transport (EET) assist with electronic bridging across the periplasm or lipid membranes.…”

“…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.…”