Biomedical Engineering Reference
In-Depth Information
(a)
(b)
(c)
d
n
4
t
3
n
g
|
0
Graphene sheet
Single-walled CNT
Multi-walled CNT
Figure 4.6
Representations of (a) graphene sheet, (b) single-walled carbon nanotube
and (c) multi-walled carbon nanotube.
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n
3
.
Figure 4.7
Molecular structures of carbon nanotubes (CNT) functionalized covalently
with different types of small molecules: 1. Ammonium-functionalized CNT;
2. Acetamidofunctionalized CNT; 3. CNT functionalized with fluorescein
isothiocyanate (FITC); 4. CNT bifunctionalized with ammonium groups
and FITC; 5. CNT bifunctionalized with methotrexate (MTX) and FITC;
6. Shortened CNT bifunctionalized with amphotericin B (AmB) and
FITC; 7. Shortened CNT bifunctionalized with ammonium groups and
FITC (through an amide linkage).
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(Reprinted by kind permission of Elsevier BV.)