State of the phycobilisome determines effective absorption cross-section of Photosystem II in Synechocystis sp. PCC 6803

2021 ◽  
Vol 1862 (12) ◽  
pp. 148494
Author(s):  
Elena A. Protasova ◽  
Taras K. Antal ◽  
Dmitry V. Zlenko ◽  
Irina V. Elanskaya ◽  
Evgeny P. Lukashev ◽  
...  
Keyword(s):  
Photosystem Ii ◽  
Cross Section ◽  
Absorption Cross Section ◽  
Absorption Cross ◽  
Effective Absorption ◽  
Synechocystis Sp ◽  
Pcc 6803

The study of neutron capture processes in AlN nanoparticles

2021 ◽  
pp. 2150127
Author(s):  
T. G. Naghiyev
Keyword(s):  
Computer Modeling ◽  
Cross Section ◽  
Neutron Capture ◽  
Absorption Cross Section ◽  
Effective Cross Section ◽  
Absorption Cross ◽  
Effective Absorption ◽  
Different Types ◽  
N Isotopes

The neutron capture processes in the AlN nanoparticles were investigated by computer modeling. Neutrons absorption were separately investigated for aluminum (Al) and nitrogen (N) atoms in the AlN nanoparticles. The modeling was performed separately for each stable Al and N isotopes, because the effective absorption cross-section of different types of isotopes of Al and N atoms is different. Moreover, effective cross-section spectra of neutron capture for aluminum and nitrogen atoms were comparatively investigated.

Differences in photosynthetic activity between coral sections infested and not infested by boring spionid polychaetes

2006 ◽  
Vol 86 (4) ◽  
pp. 727-728 ◽  
Author(s):  
Jeffrey Wielgus ◽  
Oren Levy
Keyword(s):  
Photosystem Ii ◽  
Cross Section ◽  
Absorption Cross Section ◽  
Repetition Rate ◽  
Photosynthetic Activity ◽  
Mean Value ◽  
Absorption Cross ◽  
Physiological Mechanisms ◽  
Coral Colony ◽  
The Mean

A SCUBA-based fast repetition rate fluorometer (FRRF) was used to study differences in the functional absorption cross-section of Photosystem II (σPSII) between areas of a coral colony of Astreoporamyriophthalma that were infested with spionid polychaetes vs areas lacking worms. The mean value of σPSII in infested areas (mean±SD=347.62±30.67 Å2) was significantly higher than in the areas that were not infested (316.32±17.49 Å2; P<0.0001). Several physiological mechanisms are discussed that may contribute to the observed differences.

Functionalized gold-nanoparticles enhance Photosystem II driven photocurrent in a hybrid nano-bio-photoelectrochemical cell

2021 ◽  
Author(s):  
Hagit Shoyhet ◽  
Nicholas G. Pavlopoulos ◽  
Lilac Amirav ◽  
Noam Adir
Keyword(s):  
Gold Nanoparticles ◽  
Photosystem Ii ◽  
Solar Energy ◽  
Cross Section ◽  
Absorption Cross Section ◽  
Electrical Current ◽  
Photoelectrochemical Cell ◽  
Photoelectrochemical Cells ◽  
Absorption Cross ◽  
Functionalized Gold Nanoparticles

The use of Photosystem II (PSII) in hybrid bio-photoelectrochemical cells for conversion of solar energy to electrical current is hampered by PSII's narrow absorption cross-section and the generally poor electrical...

Sign in / Sign up

Export Citation Format

Share Document