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Biosensors Based on Nanomaterials and Nanodevices
book

Biosensors Based on Nanomaterials and Nanodevices

by Jun Li, Nianqiang Wu
December 2017
Intermediate to advanced content levelIntermediate to advanced
517 pages
21h 5m
English
CRC Press
Content preview from Biosensors Based on Nanomaterials and Nanodevices
379Nanowire Field-Effect Transistor Biosensors
A mat sample of In
2
O
3
NWs was grown on a SiO
2
/Si wafer, followed by photolithogra-
phy and metal deposition to pattern an electrode array. The resultant device is shown in
Figure 15.5c. Figure 15.5d and e show typical SEM images of the NW mat sample used in
this study. Multiple nanowires were found bridging the Au electrodes. A SAM of HQ-PA
was created on a freshly cleaned In
2
O
3
NW mat sample. The In
2
O
3
NW device was placed
into the electrochemical cell and completely reduced to HQ-PA. In order to prevent the
thiol terminated DNA from attaching to the gold electrodes, the sample was treated with
dodecane-1-thiol after HQ-PA SAM formation. This resulted in the formation of a SAM of
a C
12
alkyl ch ...
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Publisher Resources

ISBN: 9781466551527