ADIS	Acquired Immunodeficiency Syndrome
AFM	Atomic Force Microscopy
bald	Non-decorated
DLS	Dynamic Light Scattering
ELISA	Enzyme-Linked Immunosorbent Assay
Env	Envelope glycoproteins
Gag	Group-specific antigen
HEK293F	Human Embryonic Kidney 293
HIV	Human Immunodeficiency Virus
HPV	Human Papillomavirus
MWCO	Molecular Weight Cut-Off
PFBM	Particle Friction Based Model
PP layer	Particle Polarization layer
SDS-PAGE	Sodium Dodecyl Sulfate–Polyacrylamide Gel Electrophoresis
TEM	Transmission Electron Microscopy
TFF	Tangential Flow Filtration
TMP	Transmembrane Pressure
UF	Ultrafiltration
VLP	Virus-Like Particle
$c_{\mathrm{W},\mathrm{a}}$	Axial spherical drag coefficient
$c_{\mathrm{W},\mathrm{r}}$	Radial spherical drag coefficient
$d_{\mathrm{H}}$	Hydraulic diameter
$d_{\mathrm{P}}$	Particle diameter
$\eta$	Dynamic viscosity
$F_{\mathrm{D},\mathrm{a}}$	Axial drag force
$F_{\mathrm{D},\mathrm{r}}$	Radial drag force
$F_F$	Friction force
${\gamma }_{\mathrm{W}}$	Wall shear rate
J	Flux
$J_{\mathrm{crit}}$	Critical flux
$\lambda \left(d_{\mathrm{P}}, c_{\mathrm{solid}}\right)$	Correction function
m	Slope
$\mu$	Static friction coefficient
$\nu$	Kinematic viscosity
$Re$	Reynolds number
$R{e}_{\mathrm{P},\mathrm{a}}$	Axial Reynolds number
$R{e}_{\mathrm{P},\mathrm{r}}$	Radial Reynolds number
$\rho$	Density
${\tau }_{\mathrm{W}}$	Wall shear stress
t	Time
u	Velocity
$u_{\mathrm{c},\mathrm{VLP}}$	Velocity at the center of the VLP
$u_{\mathrm{P}}$	Velocity permeate