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CH 3
CH 2
O
H 3 C
CH 2
O
Si
O
H 2 C
SH
CH 3
SiO 2 -3-aminopropyltriethoxysilane nanoparticle
CH 3
CH 3
O
H 3 C
CH 2
O
Si
O
H 2 C
SH
CH 3
SiO 2 -3-mercaptopropyltriethoxysilane nanoparticle
CH 3
Si
O
O
Si
O
O
NH
H 3 C
H 3 C
O
O
SiO 2 -acetylsalicylic acid nanoparticles
CH 3
Si
O
O
Si
O
N
H 3 C
N
H 3 C
CH 3
SiO 2 -p-dimethylaminobenzaldehyde nanoparticle
CH 3
Si
O
O
S i
O
NH
CH 3
N
N
N
HO OH
SiO 2 -4-(2-pyridylazo)-resorcinol nanoparticle
Figure 7.4 Chemical modii cation of silica nanoparticles with various silanes and ligands.
 
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