Fig. 3

Nanospheres characterization: (a) Prediction and disturbance diagram (A: SA, B: CaCl2, C: stirring time, D: CS); (b) Size and PDI of SA-BSA-CS; (c) Transmission electron microscope results of SA-BSA-CS; (d) Fourier Infrared Scanning Spectral Composition Analysis of SA-BSA-CS.