Chemistry Reference
In-Depth Information
Fig. 5.1
Optical microscopy images of immobilized lipase (CALB) on surface modified porous
silica gel by (3-aminopropyl)trimethoxysilane: (
left
) wet silica, and (
right
) dry silica (bar: 500
µ
m)
Fig. 5.2
SEM images of porous silica gel (
left
) and immobilized lipase (CALB) on surface modi-
fied porous silica gel (
right
) dry silica (bar: 1 µm)
Scheme 5.1
CALB immobilization on the surface modified porous silica gel particles,
a
surface
functionalization of the silica gel by 3-APS in NaOH (pH ~10.6) or in toluene followed by
b
chemical crosslinking of CALB using glutaraldehyde (pH ~ 7.5)
