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

Figure 2

Energy dispersive spectroscopy (EDS) of control and silanized silica surfaces, representing the atoms percentage in each material (a). Fourier transform infrared spectroscopic analyses (FTIR) of control and silanized silica surfaces, using an attenuated total reflectance (ATR) adapter (b). Thermogravimetric analysis (TGA) samples of control and silanized silica (c). Temperature variation ranged between 25 and 850°C.

(a)

(b)

(c)