Fundamental limits on wavelength, efficiency and yield of the charge separation triad.

ABSTRACT: In an attempt to optimize a high yield, high efficiency artificial photosynthetic protein we have discovered unique energy and spatial architecture limits which apply to all light-activated photosynthetic systems. We have generated an analytical solution for the time behavior of the core three cofactor charge separation element in photosynthesis, the photosynthetic cofactor triad, and explored the functional consequences of its makeup including its architecture, the reduction potentials of its components, and the absorption energy of the light absorbing primary-donor cofactor. Our primary findings are two: First, that a high efficiency, high yield triad will have an absorption frequency more than twice the reorganization energy of the first electron transfer, and second, that the relative

SUBMITTER: Punnoose A 

PROVIDER: S-EPMC3365904 | biostudies-literature | 2012

REPOSITORIES: biostudies-literature