Mixed micelles of the phospholipid 1,2-diheptanoyl-sn-glycero-3-phosphocholine (DHPC) with sodium dodecyl sulfate (SDS) or dodecyltrimethylammonium bromide (DTAB) in aqueous solutions and the effects of interactions between the components were studied by fluorescence and NMR measurements. The regular solution theory (RST) was applied to analyze the experimental critical micelle concentration va...

Insertion and formation of membrane proteins involves the interaction of protein helices with one another in lipid environments. Researchers have studied glycophorin A (GpA) transmembrane helices embedded in sodium dodecyl sulfate (SDS) micelles to identify contacts significant for helix dimerization. However, a detailed picture of the conformation and dynamics of the GpA-SDS system cannot be o...

Miniaturization is one of the main requirements in design portable devices that allow in-field analysis. This especially interesting environmental monitoring, where time sample-to-result process could be decreased considerably by approaching analytical platforms to sampling point. We employed traditional mass-produced and low-cost elements (micropipette tips pins) an out-of-box application gene...

The interactions between a model anionic and amphoteric surfactant pair in aqueous solution are examined as function of composition, at floating fixed pH, employing combination tensiometry, regular theory analysis, FTIR spectroscopy. An extensive series pure mixed ratios sodium dodecyl sulfate (SDS) N,N-dimethyldodecylamine N-oxide (DDAO), ranging from 0.0016 to 100 mM, yielding 77 data points ...

In order to make full use of spatial data infrastructures, spatial data sharing (SDS) is essential. Various authors indicate that the attitudes both of individuals and of organizations toward SDS are quite often problematic. For various reasons and motivations, SDS is far from optimal. However, research on individual and organizational behavior in SDS is in its infancy and presents a challenge ...

The amino acid substitution or post-translational modification of a cytosolic protein can cause unpredictable changes to its electrophoretic mobility during SDS-PAGE. This type of "gel shifting" has perplexed biochemists and biologists for decades. We identify a mechanism for "gel shifting" that predominates among a set of ALS (amyotrophic lateral sclerosis) mutant hSOD1 (superoxide dismutase) ...

Several complementary experimental and theoretical methodologies were used to explore water uptake on sodium chloride (NaCl) particles containing varying amounts of sodium dodecyl sulfate (SDS) to elucidate the interaction of water with well-defined, environmentally relevant surfaces. Experiments probed the hygroscopic growth of mixed SDS/NaCl nanoparticles that were generated by electrosprayin...

This paper reports a morphological transition of the spherical colloidal structures of the sodium dodecyl sulfate-polyethylene-b-polyethylene glycol (SDS-PE-b-PEG) complex and anionic micelle (SDS) to "rod-shaped" colloidal structures induced by a charge transfer dye, 1,8-naphthalimide (NAPMD) (forms anions in aqueous solution by intermolecular charge transfer). The distinct steady-state result...

BACKGROUND Sudden death syndrome (SDS) of soybean caused by Fusarium virguliforme spreads and reduces soybean yields through the North Central region of the U.S. The fungal pathogen and Heterodera glycines are difficult to manage. METHODOLOGY/PRINCIPAL FINDINGS The objective was to determine the contributions of H. glycines and F. virguliforme to SDS severity and effects on soybean yield. To ...