Biomedical Engineering Reference
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(a)
(c)
500 nm
200 nm
(b)
(d)
H
O
O
H
O
H
O
O
H
O
O
O
O
O
O
O
O
O
O
O
H
N
H
N
H
N
H
N
H
O
O
H
O
H
O
H
Cu
2+
O
O
H
O
H
O
H
H
N
H
N
N
H
N
H
O
O
O
H
O
O
O
O
O
O
H
O
H
O
H
O
O
H
O
O
O
(e)
(f)
Figure 5.4
SEM (a) and TEM (b) images of
hollow tantalum oxide fibers, TEM images of
CuS nanoribbons (c,d), and proposed molec-
ular assembly model for the gel and tem-
plated formation of CuS nanoribbons (e,f).
(a,b) are reprinted with permission from
Ref. [24]. Copyright 2002 American Chemical
Society; (c-f) are reprinted with permission
from Ref. [26]. copyright 2008 Elsevier.
O
O
N
N
H
N
H
O
H
HO
OH
OH
OH
OH
HO
HO
OH
OH
Scheme 5.3
The molecular structure of a tripodal cholamide gelator used for the synthesis
of various metal oxide and sulfide structures.
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