Lipid layers supported on hydrophilic polymer cushions have attracted considerable attention, not only because they provide a cell-like environment for transmembrane protein incorporation, but also because the lipid membrane creates a thin barrier that is able to maintain a chemical gradient.1 These properties have inspired the preparation of novel types of hybrids that combine lipids and hydro...

The aggregation and dispersion behaviors of carbon nanotubes (CNTs) can regulate the environmental spread and fate of CNTs, as well as the organic pollutants adsorbed onto them. In this study, multi-walled carbon nanotubes (MWNTs) and single-walled carbon nanotubes (SWNTs) were surface modified with humic acids from different sources and with surfactants of different ionic types. The dispersion...

Liposome is colloidal, vesicular structures capable of targeting to specific sites. Evans blue dye (hydrophilic dye) were formulated in liposomes using phosphatidyl choline, cholesterol and those liposomes were modified using surfactants surfactants span 20 , span 40 , span 80 or tween 80 at various molar ratio and optimized for its stable vesicular formation. The particle size and FTIR analysi...

Nowadays, enhanced oil recovery is vital in improving the recovery. However, productions keep depleting due to production problem such as high surface tension and interfacial reservoirs. Therefore, chemical flooding one of methods used The synergy between Silica nanoparticle Sodium Dodecyl Sulfate has been proposed a compound for this project. major aim study was measure effectiveness synergiza...

Polydimethylsiloxane (PDMS) is an appealing silicone elastomer as a base material for microfluidic biomedical applications. Its ability to easily ross-link as well as its favorable physical and chemical properties has enabled a large number of microand nano-cast applications. However, DMS’ hydrophobic surface can be problematic. Two methods presented here address the wettability of PDMS by accu...

Bio-based surfactants have attracted increasing attention due to their renewable resources and excellent surface properties. In this study, a novel bio-based sulfonic zwitterionic surfactant (BSZS) derived from transgenic soybean oil was prepared using a simple reaction route with two steps of the amidation and quaterisation. The bio-based sulfonic zwitterionic surfactant showed a critical mice...

the ability of natural clinoptilolite and its modified forms were studied for removal of pahs from n-paraffin. surfactant modified zeolite (smz) was obtained by modifying clinoptilolite with hexadecyltrimethylammonium ion. homoionic forms of zeolite were obtained by ion exchange process using inorganic salts of desirable cations (e.g. ag+, fe3+…). natural clinoptilolite and its cation exchanged...

calcium carbonate nano-particles were synthesized by a reverse micro-emulsion method at room temperature with tween® 80 and span® 80 as co-surfactants. the nano-particles synthesized were surface modified by stearic acid. an important operating variable in the span 80-tween 80/toluene/water reverse micro-emulsion system, the ω-value (water/surfactant molar ratio) was investigated. the material ...

An octadecylsilica (ODS) column modified with zwitterionic/nonionic mixed surfactants was evaluated for the direct injection determination of inorganic anions in biological fluids by ion chromatography. A zwitterionic surfactant (sulfobetaine-type) and a nonionic surfactant (polyoxyethylene-type) were used for a stationary-phase modification. When aqueous electrolyte solutions with concentratio...