
461Nanobiosensors
GO
x
electrode. For his purpose, Au-NP (1.4 nm) functionalized with a sin-
gle N-hydroxysuccinimide (NHS), C
4
H
5
NO
3
, functionality was reacted
with N6-(2-aminoethyl)-FAD (1) to yield the FAD-functionalized Au-NP.
Apo-GO
x
was then reconstituted with the FAD-functionalized Au-NP. The
Au-NP-reconstituted GO
x
was accumulated on an Au electrode with the
FAD-functionalized Au-NP. Thus a strategy was formulated to electrically
Au
O
N
H
FAD
Au
nanoparticle
Au
Functionalization with N-
hydroxysuccinimide (NHS)
Au
O
N
H
NHS-functionalized
Au nanoparticle
Au
O
N
H
N
6
-(2-aminoethyl)-flavin
adenine dinucleotide (1)
FAD
Au
O
N
H
FAD
FAD-functionalized ...