Biology Reference
In-Depth Information
Table 4.6. Gold nanoparticle-based electrochemical biosensors using signal enhancement methods
Analyte
Modified Electrode Substrate
Detection Technique
Detection Limit
Reference
Silverenhancement
0.7 ng mL 1
Hepatitis B virusDNA sequences
-
PSA
83
Synthetic oligonucleotides
GECE
EIS
11.8 pmol
78
Kitasatospora strains
SiO 2 chip
Conductimetry
1 ng/mL
84
Oligonucleotides with transcription factor NF- κ B
AuE
ASV
0.1 pM
85
Salmonella spp. DNA
Av-GEB
EIS
1fmol
77
Enhancement by treatment with NaBH 4
DNA synthetic strands
ITO
CV
1fmol
86
DNA synthetic strands
ITO
Amperometry
1fmol
79
Mutatedpapillary thyroid carcinoma DNA
GCE
SWSV
0.35 aM
81
Enlargementof Au-NPs
Thrombin
AuE
EIS
100 fM
82
ASV: anodic stripping voltammetry; AuE: gold electrode; Av-GEB: avidin bulk-modified graphite-epoxy biocomposite; CV: cyclic voltammetry; EIS: electrochemical
impedance spectroscopy; GCE: glassy carbon electrode; GECE: graphite epxy composite electrode; ITO: indium-tin oxide; NF- κ B: nuclear factor-kappa B; PSA:
potentiometric stripping analysis; SWSV: square wavestripping voltammetry
 
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