Cumulative release profiles of (a) BSA and (b) histone from PL/PG multilayer films with and without capsulePL or capsulePG and with different loading incubation time. The samples used in (a) included (a) L5/CG/L8/CL/L3 film, (b) L5/CG/L8/CL/L8 film, (c) L5/CG/L8/CL/L13 film, (d) L5/CG/L8/CL/L8 film incubated in drug solutions for 5 min, (e) L5/CG/L8/CG/Li film, and (f) L18 film. The samples used in (b) included (a) L5/CG/L3/CL/L8 film, (b) L5/CG/ L8/CL/L8 film, (c) L5/CG/L13/Cl/L8 film, (d) L5/CG/L8/CL/L8 film incubated in drug solutions for 5 min, (e) L5/CL/L8/CL/L/8 film, and (f) L18 film. All of the samples were incubated for 15 min unless otherwise noted.