Simplified Determination of PolyethylenegIycols in Nonionic Surface Active Agents

Surfactants - Surface Active Agents

The definition for a detergent is a cleaning agent. The main cleaning agent used in earlier days was soap. This term means a compound formed from the reaction of a fatty acid with a base such as caustic soda, forming the sodium soap of the acid. The more commonly used cleaning agent in this day and age is the synthetic detergent (SYNDET) which is a formulation such as TIDE or FAB. The essential...

Silicone Surface-Active Agents

Changes in morphology of an avirulent strain of Mycobacterium tuberculosis under the influence of nonionic surface-active agents.

No. 1 (issued 12 February 1954) PAGE Some Sampling Variations in Soil Fungal Numbers. By R. E. ROSE and JEAN G. MILLER . Studies on the Antibacterial Action of Spermine. By R. ROZANSKY, U. BACHRACH and N. GROSSOWICZ The Mineral Nutritional Requirements of Mucor hiernalis Wehm. By P. G. FOTHERGILL and LAUREEN C. D. P. RAINE . The Pleuropneumonia Group of Organisms : a Review, together with some ...

INTERACTION OF DNA WITH THE FOLDED AND UNFOLDED HISTONE HI IN THE PRESENCE OF SURFACE ACTIVE AGENTS

Interaction between DNA and histone H, was investigated in the presence and absence of sodium-n-dodecyl sulphate (SDS) and dodecyl trimethylammonium bromide (DTAB) at temperatures of 27 and 37?C, in 2.5 mM phosphate buffer, pH 6.4 by UV spectrophotometry, equilibriumdialysis and titration. The presence of 1.33 mM SDS caused histone H to fold and to further contact DNA. Binding data were use...

determination of maximal singularity free zones in the workspace of parallel manipulator

due to the limiting workspace of parallel manipulator and regarding to finding the trajectory planning of singularity free at workspace is difficult, so finding a best solution that can develop a technique to determine the singularity-free zones in the workspace of parallel manipulators is highly important. in this thesis a simple and new technique are presented to determine the maximal singula...