Nanosensors - Nanotechnologies for Water Environment Applications - page 414

Table 13.1 Selected examples of micro- and nano-scale sensors with the applied transduction techniques, material/biological
elements, detected microorganisms, detection time, and detection limit.
Bacteria

Transduction
Techniques

Material/Biological element Microorganism Time

(minutes)

Detection
limit (CFU or
PFU/mL) *

References

9 × 10 2 Electrochemical Sensor surface/antibody Listeria

monocytogenes

210 (Crowley et al., 1999)

Electrochemical Polyaniline/antibody E. coli O157:H7 6 78 (Muhammad-Tahir and

Alocilja, 2003)

7.4 × 10 4 Electrochemical Magnetic nanoparticles/antibody E. coli O157:H7 35 (Varshney and Li, 2007)

Electrochemical Gold electrode/nucleic acid E. coli O157:H7 --- 2 × 10 -7 M

oligos

(Berganza et al., 2007)

Electrochemical Polyaniline/antibody Bacillus cereus 6 10-100 (Pal et al., 2007)