The scope of this work was to investigate the migration behavior of the currently used protease inhibitors for antiretroviral therapy of people infected with the human immunodeficiency virus and to develop a method for their capillary electrophoretic separation and determination. All of the protease inhibitors (indinavir, saquinavir, nelfinavir, amprenavir, and ritonavir) contain at least one b...

Isoelectric focusing of proteins in a silica nanofluidic channel filled with citric acid and disodium phosphate buffers is investigated via numerical simulation. Ions in the channel migrate in response to (i) the electric field acting on their charge and (ii) the bulk electroosmotic flow (which is directed toward the cathode). Proteins are focused near the low pH (anode) end when the electromig...

An electrophoretic-electroosmotic focusing (EEF) method was developed and used to separate membrane-bound proteins and charged lipids based on their charge-to-size ratio from an initially homogeneous mixture. EEF uses opposing electrophoretic and electroosmotic forces to focus and separate proteins and lipids into narrow bands on supported lipid bilayers (SLBs). Membrane-associated species were...

We present mesoscopic dissipative particle dynamics-simulations of polyelectrolyte electrophoresis in confined nanogeometries for varying salt concentration and surface slip conditions. Special attention is given to the influence of electroosmotic flow on the migration of the polyelectrolyte. The effective polyelectrolyte mobility is found to depend strongly on the boundary properties, that is,...

In this work, a new electrokinetic remediation technology was used to remove heavy metal and hydrocarbon from contaminated soil. The surfactant combined with PASP (Polyaspartic acid) enhance removing Electric current, soil pH, electroosmotic flow, water content variation, removal efficiency residual distribution, speciation, of TPH (total petroleum hydrocarbons), group composition oil, mechanis...