46
2 MET-Type Bioelectrocatalysis
A
B
C
D
Fig. 2.6 Reactions of some bifunctional reagents. A GA reacts with amino groups in different
ways for cross-linking reactions, B co-immobilization of HRP and thionine with GA on l-CysSAM AuE, C formation of an amide bond using EDC/NHS, and D reaction scheme of cross linking
with PEGDGE
2.6.2 Redox Polymers
Redox polymers are most widely applied for immobilizing both enzymes and mediators on an electrode in MET-type bioelectrocatalysis. In this section, we will introduce typical redox polymers that have redox couples working as mediators which are
bound to the cross-linked polymer network through covalent or coordinative bonds.
2 MET-Type Bioelectrocatalysis
A
B
C
D
Fig. 2.6 Reactions of some bifunctional reagents. A GA reacts with amino groups in different
ways for cross-linking reactions, B co-immobilization of HRP and thionine with GA on l-CysSAM AuE, C formation of an amide bond using EDC/NHS, and D reaction scheme of cross linking
with PEGDGE
2.6.2 Redox Polymers
Redox polymers are most widely applied for immobilizing both enzymes and mediators on an electrode in MET-type bioelectrocatalysis. In this section, we will introduce typical redox polymers that have redox couples working as mediators which are
bound to the cross-linked polymer network through covalent or coordinative bonds.