Solubilization of membrane proteins requires surfactants, whose structural properties play a crucial role in determining the protein phase behavior. We show that ionization of a pH-sensitive surfactant, lauryldymethylamino-N-oxide, bound to the bacterial photosynthetic Reaction Center, induces protein phase segregation in micrometric "droplets." Liquid-liquid phase separation takes place in a n...

Separation of propylene-propane mixture using immobilized liquid membrane was investigated. The effect of transmembrane pressure and carrier concentration on membrane separation performance was studied. It was observed that for 30:70 (vol. %) propylene-propane mixture, at pressure of 120kPa and carrier concentration of 20wt. %, a separation factor of 474 was obtained. Keywords—Facilitated Trans...

Membrane solubilization induced by Triton X-100 (TX-100) was investigated. Different membrane compositions and phase states were studied along the detergent titration. Expected profiles obtained but new information is provided. The fluorescence of nitrobenzoxadiazole (NBD)-labeled lipids indicates that liquid-ordered (Lo)/liquid-disordered (Ld) coexistence barely unaffected at sub-solubilizing ...

Agins, Alan Paul. M.S., University of Rhode Island, 1980. Effects of Liquid Membranes on Gastrointestinal Absorption of Drugs in Rats. Major Professor: Dr. George C. Fuller. A liquid membrane system was investigated as a potential antidotal treatment for acute drug overdose. The effectiveness of orally administered liquid membranes in simulated acute secobarbital, phencyclidine and strychnine p...

Platform chemicals such as medium-chain carboxylic acids (MCCAs) can be produced from organic waste streams via chain elongation in anaerobic mixed-culture bioreactors. A product recovery system is needed to collect MCCAs the bioreactor effluent. Membrane-based liquid–liquid extraction, most commonly used approach, requires suspended solids removal effluent avoid membrane fouling. An dynamic (A...

This study represents a first time that perstraction was assessed as process to remove perfluorooctanoic acid (PFOA) from water. In the process, PFOA permeates through membrane water solvent. The used in this polydimethylsiloxane (PDMS). experimental approach included following: (1) measurement of partition coefficients for between and selected solvents; (2) determination solubility diffusivity...

We demonstrated a liquid lens whose focal length can be controlled by an actuator. The lens cell is composed of elastic membrane, planar glass plate, a periphery sealing ring, and a liquid with a fixed volume in the lens chamber. Part of the periphery sealing ring is excavated to form a hollow chamber which functions as a reservoir. This hollowed periphery is surrounded by an exterior rubber me...