WSS	Wall shear stress
ATP	Adenosine triphosphate
VECs	Vascular endothelial cells
D	Diffusivity of solute (m2/s)
Deff	Effective diffusivity coefficient of solute (m2/s)
H	Height of the mixing micro-channel (m)
p	Pressure (Pa)
Q	Total flow rate in the mixing micro-channel C (mL/h)
QA	Flow rate at inlet A (mL/h)
QB(t)	Flow rate at inlet B (mL/h)
u	Velocity of fluid in z direction (m/s)
W	Width of the mixing micro-channel (m)
W1	Width of solution A in the mixing micro-channel (m)
W2	Width of solvent B in the mixing micro-channel (m)
ε(t)	Ratio of W2 to W
η	Viscosity of fluid (Pa·s)
${\overline{\mathsf{\varphi }}}_{\mathrm{A}}\left(t\right)$	Concentration of solution in the micro-channel (μmol/mL)
$\overline{\mathsf{\varphi }}\left(t\right)$	Height-wise averaging concentration of solution (μmol/mL)
${\overline{\mathsf{\varphi }}}_{\mathrm{A}}\left(t\right)$	Height-wise averaging concentration of solution at inlet A (μmol/mL)
${\mathsf{\tau }}_{\mathrm{w}}(t)$	Wall shear stress (Pa)