Table 5.3 Nanosensors for the detection of some major chemical and biological contaminants
Nanosensor material
Analyte
Transduction principle LOD
Linear range
Ref.
Gaseous pollutants
CSA doped PPy/α-Fe
2 O
3
NO
2
Chemiresistive
–
5–100 ppm
Navale et al.
(2014)
MWCNTs/carbon nanospheres
SO
2
Chemiresistive
0.5 ppm
0.5–20 ppm
Altal and
Sekhaneh
(2020)
PANI NFs-based TENG
NH
3
Electrochemical
500 ppm
–
Cui et al. (2018)
Organic pollutants
f-MWCNTs/AuNPs
BPA
Electrochemical (CV,
EIS)
0.05 nM
0.1–10 nM
Deiminiat et al.
(2017)
Fe
3 O
4 NPs-Si
4 Pic
+
Cl
À
/Au NPs-Si
4 Pic
+
Cl
À
/
GCE
BPA
Electrochemical
7 nM
2–1400 nM
Santana et al.
(2017)
AuAg alloy NDs in SSG silicate sol-gel
matrix
Nitrobenzene
Electrochemical
–
1–80
μM
Manivannan
et al. (2017)
AgNWs-PANI nanocomposite
4-NP
Electrochemical
(DPV)
52 nM
0.6–32
μM
Zhang et al.
(2017a)
GCE/NiDMG-AuNP
4-NP
2-NP
Electrochemical
(voltammetric)
0.103
μM
0.58
μM
–
Olorundare
et al. (2016)
Ag
2 O QDs
2-NT
Electrochemical
4.3 ppm
5–40 ppm
Bhanjana et al.
(2018)
PtPd-rGONRs
2,4,6 TNT
Electrochemical
0.8 ppb
0.01–3 ppm
Zhang et al.
(2015a)
Ag NPs modified electrochips
2,4,6 TNT
DNB
Electrochemical
–
1
 10
À10
–0.1 M
1
 10
À7
–0.1 M
Singh et al.
(2016)
(continued)
5 Development of Environmental Nanosensors for Detection Monitoring. . .
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