Screening optimal drug delivery over various possibilities. (A) 3D scatter plot of 100 treatment possibilities as function of their stimulation rate, speed and capacity (X, Y, Z axis, respectively, each data point defines a possible treatment). (B) Treatment possibilities labeled based on their dose quantity. (C) Treatment possibilities labeled based on their uptake level. (D) Optimal treatments screened from multiple possibilities (dose >30% and uptake >30% of their maximal value).