Biomedical Engineering Reference
In-Depth Information
Table 9.9
(
Continued
).
Materials/
Methods
Analyte
Transducer
Main Performance
Ref.
CH
Pd-modified
SWCNT layer
Chemiresistor CR: 6-100 ppm
S:
[234]
4
~3%/30 ppm
DL: 6 ppm; OT: 20-150°C
Rst: <4 min
Rct: <10 min (Rec. UV
light)
∆
R
/
R
NO
, HCN,
HCl, Cl
Metal-, polymer-
modified SWCNT
layer
Chemiresistor CR: 1-50 ppm
32 CNT sensors array
DL: a few ppm level; OT:
RT
Rst: NS; Rct: NS
PCA analysis
[39]
2
,
2
CH
, C
6
H
,
4
6
Acetone
CO
Pt-modified
SWCNT film
Chemiresistor CR: 1-10 ppm
S:
[236]
∆
G
~0.7%/ppm
DL: 1 ppm; OT: RT
Rst: <20 s; Rct: NS
/
G
CO
CoO
H
nanosheet-
modified CNT
by precipitation-
oxidation
Chemiresistor CR: 0-200 ppm
S: 0.19 mV/ppm
DL: 50 ppm; OT: RT
Rst: ~25 s
Rct: ~35 s
[227]
2
CO
PEI/starch-
modified
SWCNT film
FET
CR: 0.05-10%
S:
[143]
2
/vol.%
DL: <500 ppm; OT: RT
Rst: ~1 min
Rct: <2 min
∆
G
/
G
~2
%
CO
SWCNT film
MEMS
CR: 0-15% vol.
S: 350 Hz/vol. %
DL: 0.2%vol.; OT: RT
Rst: NS; Rct: NS
[310]
2
NH
, CO, CO
MWCNT film Capacitor,
chemiresistor
CR: 0-100%
S:
[150]
3
2
∆
R
/
R
~25% at 10% NH
3
DL: <10%; OT: RT
Rst: <3 min
Rct: ~days at 100°C
vacuum
H
S
Au-modified
MWCNT
networks by RF-
PECVD
Chemiresistor CR: 0.1-10 ppm
S: Mean
[248]
2
~10%/ppm
DL: 0.1 ppm; OT: 200°C;
Rst: <2-3 min
Rct: <30 min
∆
R
/
R
i
H
S
Pt-, Pd-modified
MWCNT
networks by RF-
PECVD
Chemiresistor CR: 0.1-10 ppm
S: Mean
[247]
2
~4%/ppm
DL: 0.1 ppm; OT: 200°C;
Rst: <3 min
Rct: <30 min
∆
R
/
R
i
