Singlet oxygen generation in the reaction centers of Rhodobacter sphaeroides
- A. Uchoa, P. P. Knox, Rozane Turchielle, N. K. Seifullina, M. Baptista
- Chemistry, PhysicsEuropean Biophysics Journal
- 20 February 2008
1O2 was shown to be affected by the RC dynamics and to originate from the reaction of molecular oxygen with two sources of triplets: photoactive dimer formed by singlet-triplet mixing and bacteriopheophytin formed by direct photoexcitation and intersystem crossing.
Effect of D2O and cryosolvents on the redox properties of bacteriochlorophyll dimer and electron transfer processes in Rhodobacter sphaeroides reaction centers.
- V. Paschenko, P. P. Knox, A. Rubin
- 1 March 2001
Photo-induced electron transport and water state in Rhodospirillum rubrum chromatophores.
- G. Nikolaev, P. P. Knox, A. Kononenko, N. Grishanova, A. Rubin
- ChemistryBiochimica et Biophysica Acta
- 2 April 1980
Effect of Isotope Substitution and Controlled Dehydration on the Photoinduced Electron Transport Reactions of Quinone Acceptors and Multiheme Cytochrome c in Bacterial Photosynthetic Reaction Center
- S. Chamorovsky, P. M. Krasil’nikov, P. P. Knox
- ChemistryBiochemistry (Moscow)
- 1 November 2002
The intramolecular electron transfer between two high-potential hemes of cytochrome c in samples with 2H2O is inhibited within this range of P/P0, whereas in RC samples with H2O there is a trend toward gradual inhibition of the interheme electron transfer with dehydration.
Effects of Oxygen, Heavy Water, and Glycerol on Electron Transfer in the Acceptor Part of Rhodobacter sphaeroides Reaction Centers
- P. P. Knox, M. Baptista, A. Uchoa, N. I. Zakharova
- ChemistryBiochemistry (Moscow)
- 1 November 2005
It was shown that removing of molecular oxygen from RC preparations slowed down the fast phase of the process from 4–4.5 µsec to tens of microseconds.
Cooperative effects in CdSe/ZnS-PEGOH quantum dot luminescence quenching by a water soluble porphyrin
- I. Borissevitch, G. Parra, Rubin Ab
- 1 February 2013
Modification of protein hydrogen bonds influences the efficiency of picosecond electron transfer in bacterial photosynthetic reaction centers
- V. Paschenko, B. N. Korvatovsky, A. Rubin
- 6 April 1987
Investigation of stability of photosynthetic reaction center and quantum dot hybrid films
- E. Lukashev, P. P. Knox, I. P. Oleinikov, N. K. Seifullina, N. Grishanova
- EngineeringBiochemistry (Moscow)
- 2 February 2016
It was found that dry films containing RCs and QDs and maintained at atmospheric humidity are capable to keep their functional activity for at least some months as judging by results of measurement of their spectral characteristics, efficiency of energy transfer from QDs to RCs, and RC electron-transport activity.
The influence of hydrogen bonds on electron transfer rate in photosynthetic RCs.
- P. Krasilnikov, P. Mamonov, P. P. Knox, V. Paschenko, A. Rubin
- Materials Science, ChemistryBiochimica et Biophysica Acta
- 1 June 2007
Effects of mutual influence of photoinduced electron transitions and slow structural rearrangements in bacterial photosynthetic reaction centers
- Grachik A. Abgaryan, L. Christophorov, Eugene A. Lukashev
- ChemistryJournal of biological physics (Print)
- 1 March 1998
The phenomenon of light-induced structural transformations in the reaction centers of photosynthetic bacteria which makes self-regulation of the RC charge separation efficiency possible is described and a theory of structure-function reorganization in the RC is constructed using the adiabatic approach.