Conversion of light into electricity in a semi-synthetic system based on photosynthetic bacterial chromatophores

Vitukhnovskya, Liya A.; Zaspa, A. A.; Semenov, Alexey Yu.; Mamedov, Mahir D.

doi:10.1016/j.bbabio.2023.148975

Cited by 6 publications

(1 citation statement)

References 47 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Recently, the stable ∆ψ generation by PSI, PSII, and bacterial chromatophores in the presence of trehalose has been measured using the modification of the direct electrometrical method (see [128] and references therein). This new approach was based on the use of the nitrocellulose membrane porous filters impregnated with pigment-protein complexes and sandwiched between two semiconductive indium tin oxide-coated transparent glass slides.…”

Section: Practical Implicationsmentioning

confidence: 99%

Electrometric and Electron Paramagnetic Resonance Measurements of a Difference in the Transmembrane Electrochemical Potential: Photosynthetic Subcellular Structures and Isolated Pigment–Protein Complexes

Semenov,

Tikhonov

2023

Membranes

Self Cite

View full text Add to dashboard Cite

A transmembrane difference in the electrochemical potentials of protons (ΔμH+) serves as a free energy intermediate in energy-transducing organelles of the living cell. The contributions of two components of the ΔμH+ (electrical, Δψ, and concentrational, ΔpH) to the overall ΔμH+ value depend on the nature and lipid composition of the energy-coupling membrane. In this review, we briefly consider several of the most common instrumental (electrometric and EPR) methods for numerical estimations of Δψ and ΔpH. In particular, the kinetics of the flash-induced electrometrical measurements of Δψ in bacterial chromatophores, isolated bacterial reaction centers, and Photosystems I and II of the oxygenic photosynthesis, as well as the use of pH-sensitive molecular indicators and kinetic data regarding pH-dependent electron transport in chloroplasts, have been reviewed. Further perspectives on the application of these methods to solve some fundamental and practical problems of membrane bioenergetics are discussed.

show abstract

Section: Practical Implicationsmentioning

confidence: 99%