Electrostatics of photosynthetic reaction centers in membranes.


Photosynthetic reaction centers are integral membrane complexes. They have potential application as molecular photovoltaic structures and have been used in diverse technological applications. A three-dimensional electrostatic model of the photosystem I reaction center (PSI) embedded in a lipid membrane is presented. The potential is obtained by solving the Poisson-Boltzmann equation with the finite element method (FEM). Simulations showing the potential distribution in a vesicle containing PSI reaction centers under different conditions are presented. The results of the simulations are compared with previous findings and a possible application of PSI to provide light activation of voltage-gated ion channels is discussed.

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@article{Pennisi2006ElectrostaticsOP, title={Electrostatics of photosynthetic reaction centers in membranes.}, author={Cristian Pablo Pennisi and Elias Greenbaum and Ken Yoshida}, journal={Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference}, year={2006}, volume={1}, pages={4209-12} }