We repor t the modula t ion of the solu t ion rheology of a comblike, hydrobhobica lly modified a lka li-soluble emulsion (HASE) associa t ive polymer through addit ion of Rand !-cyclodext r ins (CDs). The r ing-shaped CDs with hydrophobic inner cores in teract with the pendant macromonomer segments of the associa t ive polymer conta in ing hydrophobic end groups, leading to reduct ion in polym...

Crude oil spills are a major threat to marine biota and the environment. When light crude oil spills on water, it forms a thin layer that is difficult to clean by any methods of oil spill response. Under these circumstances, a special type of amphiphile termed as "chemical herder" is sprayed onto the water surrounding the spilled oil. The amphiphile forms a monomolecular layer on the water surf...

The rapidly growing problem of increased resistance to classical antibiotics makes the development of new classes of antimicrobial agents with lower rates of resistance urgent. Amphipathic cationic α-helical antimicrobial peptides have been proposed as a potential new class of antimicrobial agents. The goal of this study was to take a broad-spectrum, 26-residue, antimicrobial peptide in the all...

Recent developments in water-soluble hydrophobically associating polymers are examined with particular emphasis on their use for oilfield applications. These polymers have potential for use in EOR, acidizing, drilling fluids, completion fluids and profile modification. They have also been reported to selectively reduce water permeability in sandstones, and have been used as drag-reducing agents...

CYP51 fulfills an essential requirement for all cells, by catalyzing three sequential monooxidations within the cholesterol biosynthesis cascade. Inhibition of fungal CYP51 is used as a therapy for treating fungal infections, while inhibition of human CYP51 has been considered as a pharmacological approach to treat dyslipidemia and some forms of cancer. In order to predict the interaction of in...

The unique structure and dynamics of the water hydrogen (H)-bond network enable a multitude of structures and chemical reactions in both bulk solutions and at interfaces. The underlying molecular interactions between water and dissolved electrolytes, organic molecules, and nanoscale interfaces are difficult to study and hence not fully understood, especially when it involves interactions of len...