Chemistry
The Role of Redox Mediators in Enzymatic Biofuel Cells
Quick fact
Without redox mediators, most enzymatic biofuel cells would produce almost no current because enzymes' active sites are buried deep inside the protein, making direct electron transfer to the electrode extremely inefficient.
Why this is interesting
You know that enzymes power our cells—but what if they could power your phone? The secret lies in tiny molecular couriers shuttling electrons between biology and metal.