3.1.2.3. Chitosan-Based Electrochemical Immunosensors:
Electrochemical immunosensors based on Chitosan are created by
immobilizing antibodies or antigens on the electrode surface of
Chitosan. One of the advantages of chitosan is that the number of amino
sites accessible for covalent protein attachment to chitosan materials
may be varied across a large range merely by changing the degree of
deacetylation of the variety. The fungal hepatocarcinogen aflatoxin B1
(Masoomi et al., 2013), botulisum neurotoxin A (Afkhami et al. 2017),
diarrhea triggering bacteria Shigella flexneri, Ochratoxin A,
hepatitis B biomarkers, cancers and iron content of blood (Liang et al.,
2014) are detected and monitored by using electrochemical immunosensors.
Figure 3 : DNA
immobilization on electrode surfaces using chitosan.