Biomedical Engineering Reference
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Figure 4.8
Cyclic voltammogram at the HRP/CNTs/1-butyl-3-
methylimidazolium hexafluorophosphate-modified glassy carbon electrode
in 0.1 M phosphate buffer solution (pH = 7.00) under nitrogen. The scan
rate is 0.1 V/s. Reprinted with permission from Ref. [49]. Copyright 2004
American Chemical Society.
Our strategy for solving above challenge involves preparation
of the polyelectrolyte-supported ILs (PFIL, Fig. 4.9) [50] It was
noted that polyelectrolyte could be easily immobilized onto many
substrates through various methods such as electrophoresis, layer-
by-layer (LbL) assembly and casting, etc. Therefore, it would be
helpful for us to immobilize ILs facilely on general substrates with
the aid of polyelectrolyte as carrier. Thus, the ILs could be easily
immobilized on the substrate with the aid of polyelectrolyte. As
illustrated, the direct electrocatalytic activity of the PFIL toward
the oxidation of
-Nicotinamide adenine dinucleotide (NADH) was
reported for the first time. In addition, via LbL assembly of PFIL, an
electrochemically controlled tunable surface was also constructed.
Such design of PFIL provided more general approaches to immobilize
IL on any solid supports in spite of any size and shape, and it would
be much significant for the chemical industrial processes. This
practical advantage of the PFIL material was technically attractive
in chemical industrial processes, and exhibited a significant future
toward the application of IL wherever in surface chemistry or in
catalytic chemistry.
b
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