Apllied no. of cells mI1
Plate counting (CFU mI1)
DNA sensor (-nF cm-2)
105
(9.5 ± 0.5)×104
84 ± 9
104
(7.8 ± 0.3)×103
57 ± 5
103
(8.8 ± 0.2)×102
40 ± 4
102
(9.2 ± 0.2)×101
27 ± 4
101
ND
21 ± 3
100
ND
10 ± 1
*
*
Below Limit of Detection. ND = Not Detected
Table 2:
Comparison: Detection of E. coli cells at concentration range 1 to 105 cells ml-1 using plate counting method and DNA based technique, capacitive DNAsensor.
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