Fig. 4.

(A and B) Exemplary autocorrelation function C_τ(t) of τ_off (A) and τ_on (B) from turnover trajectories of individual atomically dispersed Pt₁@CeO₂ at 35 nM resazurin. The x axis is the turnover index. The solid line is the fit with a single exponential for decay constants of m_off = 1.9 ± 0.5 turnovers and m_on = 1.2 ± 0.4 turnovers. (Insets) The distribution of the fluctuation time for τ_off and τ_on processes, respectively. (C) Dependences of the rates of activity fluctuation (the inverse of fluctuation correlation time) of τ_off and τ_on processes on the turnover rates. Each data point is an average from >80 trajectories here. Error bars are SE.