Degree of hydrophobicity

Hydrophobicity scales measure the degree of hydrophobicity of different amino acid side chains... 

These samples differed slightly in the degree of hydrophobe branching. Although the difference in hydrophobe branching is small, it may be worthy of note that the more branched surfactant provided the lower IFT value. 

Cross-linked polymeric materials with optical transparency and biocompatibility are used to construct hard contact lenses. The monomers commonly used in hard contact lenses possess a high degree of hydrophobicity due to their inability to form hydrogen bonds with water. The ester methyl methacrylate (MMA) (Fig. 14.6.1), CH2C(CH3)COOCH3, was the first monomeric unit used in 1948. 

However, some researchers have preferred to develop hydrophobic sensitizers and, indeed, it needs to be recognized that some degree of hydrophobicity is advantageous to facilitate the penetration of biological membranes. In these cases a delivery vehicle is required, and this must be biocompatible, and provide a suspension which is stable up to the point at which the natural transport system (e.g., albumin or lipoprotein or both) takes over. 

Coal with more than 85% w/w carbon have usually been shown to exhibit a greater degree of hydrophobic character than the lower-rank coals, with the additional note that the water density may be substantially lower than the helium density for the 80 to 84% carbon coals, there is generally little, if any, difference between the helium and water densities. However, the hydrophobicity of coal correlates better with the moisture content than with the carbon content and better with the moisture/carbon molar ratio than with the hydrogen/carbon or oxygen/carbon atomic ratios. Thus, it appears that there is a relationship... 

Fig. 25 Comparison of the predicted hydrophobicity of a laulimalide b epothilone B c pacli-taxel. Structures a and b correspond to a common solution conformation for the two macrolides. Solvent accessible surfaces are colored according to the degree of hydrophobicity brown hydro-phobic, green neutral, blue hydrophilic, d Laulimalide binding site on (1-tubulin- after (3—H9 movement described in text. The view is from the outside of the microtubule. The paclitaxel (PTX) site is labeled too, but it is accessed from the lumen...

The problem here consists in listing the material parameters because, in activated sludge, they fluctuate strongly (much in contrast to ore flotation). Surely, the degree of hydrophobicity (wettability) of the particle surface (contact angle, ) will be of importance. Furthermore, the pH value, the concentration of the flocculant (poly-electrolyte), cF, the portion of solids, [Pg.30]

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