The emission decay was examined by single photon counting technique and showed a multi-exponential decay with lifetimes of 78 ns, and 350 ns which is assigned to radiative decay of excitons in the (CH3NH3 PbI3.
Such reconstituted complexes have been shown to have both quasi-stable and ultrastable populations that decay with lifetimes of 1 2 days and ∼3 weeks at 22 °C, respectively, where decay results primarily from proteolysis of the bound kinase [Erbse, A. H., and Falke, J. J. (2009) Biochemistry 48, 6975 6987; Slivka, P. F., and Falke, J. J. (2012) Biochemistry 51, 10218 10228].
With excitation at 337 nm, the excited state decays biexponentially with lifetime decays of 6 9 ns and 90 ns.
AmTrac-GS showed single exponential decay kinetics with lifetime values of τ = 2.55 ± 0.04 ns and τ = 2.48 ± 0.1 ns when treated with water and ammonium, respectively.
The peptides have fluorescence emission maxima of 350 355 nm, quantum yields of 0.04 0.24, and triple exponential fluorescence decays with lifetimes of 4.4 6.6, 1.4 3.2, and 0.2 1.0 ns at 5°C.
The time-resolved emission related to the LE transition can be fitted by the sum of a shorter exponential decay with a lifetime of 770 ps and a constant associated with the very long lifetime of the indirect transition.
Solid line is calculated by a first-order single-exponential decay with the lifetime of τ = 480 ms.
However, the monophasic decay, with the lifetime of τ = 480 ms, indicates the homogenous functional binding of the RC to the complex.
As expected, plain glass gives the monoexponential decay with a lifetime of 16 ns (panels A and B).
E. coli photolyase flavin adopts a rather planar structure and has a single-exponential decay with a lifetime of 1.3 ns that enables the enzyme to maximize its electron-transfer reaction.
