| Autor: |
Zhu, Jingyi, Paparelli, Laura, Hospes, Marijke, Arents, Jos, Hellingwerf, Klaas, Kennis, John T. M., Van Stokkum, Ivo H.M., Louise Groot, Marie |
| Předmět: |
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| Zdroj: |
EPJ Web of Conferences; 2013, Issue 41, p07010-p.1-07010-p.3, 3p |
| Abstrakt: |
Photoinduced ionization of the chromophore inside photoactive yellow protein (PYP) was investigated by ultrafast spectroscopy in the visible-near infrared spectral region. A solvated electron absorption-like band was observed that extended from around 550nm to 850nm, centred at 700nm. Simulation of the decay traces of the band with a classic diffusion model indicated that ejected electrons were located an average distance of ∼3Å away from the radical centre, and around 40% the solvated electrons were annihilated by geminate recombination. The remaining 60% escaped out of the protein pocket to be annihilated by bulk recombination. This result indicates that the chromophore is in a local environment inside PYP that is only slightly different from the bath solvent. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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