For many decades, mineral oils with or without dried mycobacteria, i.e. Complete and Incomplete Freund ́s Adjuvant, have been the most commonly used immune adjuvants for experimental work. Later on, better defined hydrocarbon oils such as pristane (2,6,10,14-tetramethylpentadecane), squalene (2,6,10,15,19,23-hexamethyl-2,6,10,14,18,22-tetracosa-hexane), or hexadecane have emerged and partially r...

Investigating properties of phase change materials (PCMs) is an important issue due to their extensive use in heat storage systems and thermal regulation devices. Improvement the efficiency such should be based on a better knowledge microscopic mechanisms governing rheological characteristics PCMs. This may accomplished by molecular simulations aforementioned quantities linkage with macroscale ...

Abstract Ternary mixtures consisting of liquids and dissolved gases with either two solvents or solutes are characterized by determining their liquid dynamic viscosity η L interfacial tension σ using surface light scattering (SLS) equilibrium molecular dynamics (EMD) simulations in the temperature range between (298 573) K for mole fractions gas up to 0.20. The four ternary interest n -hexadeca...

Micrometer sized alkane-in-water emulsion drops, stabilized by appropriate long-chain surfactants, spontaneously break symmetry upon cooling and transform consecutively into series of regular shapes (Denkov et al., Nature 2015, 528, 392). Two mechanisms were proposed to explain this phenomenon drop "self-shaping". One these assumes that thin layers plastic rotator phase form at the surface arou...

BACKGROUND Arachidonic acid (ARA) is one of the three essential fatty acids, and it is important for human body to keep healthy and is widely used. At present, expensive materials such as glucose and yeast extract are generally reported to be optimal for ARA production. A new cost-effective fermentation process including cheaper material for ARA production is of great significance. METHODS Fe...

Ball on disc tribometer and atomic force microscopy (AFM) were used to analyse the effect of base oil polarity on the friction behaviour of steel–steel contacts lubricated with base oilzzinc dialkyldithiophosphate (ZDDP) solutions. Understanding the lubrication properties of the first chemisorbed layer of additives on work pieces yields important information for the optimisation of lubricant fo...

Despite large-scale development on the North Slope, no recent studies examining Alaskan arctic marine sediment microbial communities and their ability to metabolize petroleum compounds have been published. Microbial degradation of spilled petroleum hydrocarbons is a major mechanism of removal of these compounds from the environment. In this study we initiated a survey of marine sediment microbi...