Biotechnological Tools for Environmental Sustainability: Prospects and Challenges for Environments in Nigeria—A Standard Review
Figure 5
Enzymatic biosensor using cytochrome C3 as the recognition element. Upon exposure to chromate [Cr (VI)], electrode-immobilized cytochrome reduces Cr (VI) to Cr (III). The current produced by the electrochemical regeneration of reduced cytochrome C3 is proportional to the amount of oxidized cytochrome C3 and, therefore, the Cr (IV) concentration. Ripp et al. [24].
