Symbols

Symbols

Dimensionless ratio of the enzymatic reaction rate to diffusion rate of product, (none)

Dimensionless ratio of the enzymatic reaction rate to diffusion rate of substrate,(none)

a,b

Dimensionless parameters (none)

c_p

Concentration of product, mol/cm³

Dimensionless product concentration, (none)

c_s

Concentration of substrate, mol/cm³

Dimensionless substrate concentration, (none)

c_sbulk

Concentration of substrate in bulk solution, mol/cm³

c_sbulk

Dimensionless concentration of substrate in bulk solution, (none)

Diffusion coefficient of product, cm²/s

D_s

Diffusion coefficient of substrate, cm²/s

F

Faraday’s constant, C/mol

I

Current density, A/cm²

K_S

Michaelis constant for reactant, mM

k_cat

Catalytic rate constant in Michaelis-Menten mechanism, s⁻¹

L

Thickness of enzyme layer, cm

n

Number of electrons transferred in reaction, (none)

r

Ratio of diffusion coefficients, (none)

t

Time, s

t^*

Dimensionless time, (none)

V_max

Product of the kinetic parameter and enzyme loading, mM/s

Z

Distance from the electrode surface, cm

z^*

Dimensionless distance from the electrode surface, (none)