k1 = P_para
k2 = Ai
k3 = Mp_s_caco
k4 = Mp_g_caco
k5 = V_api
k6 = V_caco
k7 = Mp_s_HepG2
k8 = V_basol
k9 = P_sulf
k10 = P_glu
k11 = Mp_g_HepG2
k12 = time_threshold
k13 = Apical
k14 = Caco_2
k15 = Basolateral___HepG2