Research Article

Structural and Chemical Characterization of Silica Spheres before and after Modification by Silanization for Trypsin Immobilization

Figure 4

Surface response graph regarding the trypsin immobilization efficiency on silica control (a) and silanized (b). “-axis” represents the pH values, “-axis” represents the immobilization reaction time, and “-axis” represents the immobilization efficiency. White dots indicate the tested experimental points.