Fig. 3: Decay curve analysis and reproduction via GA/PSO optimization.

a Decay curves detected at 485 and 545 nm along with their first/second derivatives and curvature plots. b Reproduced decay curves (M485 and M545) from the GA-driven Runge–Kutta process. c Reproduced decay curves from the PSO-driven Runge–Kutta process. All curves are normalized to the total number of Eu2+ activators.