The aim of this study was to investigate the rheological behavior and mucoadhesive nature of saliva substitutes, by incorporating various mucoadhesive polymers into an artificial saliva pump spray formulation. For this purpose various mucoadhesive polymers including cellulosic polymers in the range of 0.1-1.0% and Carbomers such as C974p, C971, C934p and C971 in the range of 0.01-0.1% were adde...

The aim of this study was to investigate the rheological behavior and mucoadhesive nature of saliva substitutes, by incorporating various mucoadhesive polymers into an artificial saliva pump spray formulation. For this purpose various mucoadhesive polymers including cellulosic polymers in the range of 0.1-1.0% and Carbomers such as C974p, C971, C934p and C971 in the range of 0.01-0.1% were adde...

Abstract We investigate the sedimentation of identical inertialess spherical particles in a Stokes fluid limit many small particles. It is known that presence leads to an increase effective viscosity suspension. By Einstein's formula this effect order particle volume fraction ?. The disturbance flow responsible for very singular (like | x ? 2 ). Nevertheless, well-prepared initial configuration...

The editorial by Forconi and Gori [1] challenges a cornerstone of cardiovascular physiology in questioning the interpretation of Hagen–Poiseuille’s law for viscous liquid flow in tubes in making the link between the fluid mechanical properties of blood and how these translate into physiological effects, which ultimately set peripheral vascular resistance, blood pressure and cardiac output. Appl...

The flow of generalized Newtonian fluids with a rate-dependent viscosity through fibrous media is studied, with a focus on developing relationships for evaluating the effective fluid mobility. Three methods are used here: (i) a numerical solution of the Cauchy momentum equation with the Carreau or power-law constitutive equations for pressure-driven flow in a fiber bed consisting of a periodic ...

We present a mathematical proof of Einstein’s formula for the effective viscosity of a dilute suspension of rigid neutrally–buoyant spheres when the spheres are centered on the vertices of a cubic lattice. We keep the size of the container finite in the dilute limit and consider boundary effects. Einstein’s formula is recovered as a first-order asymptotic expansion of the effective viscosity in...