That's because water is a polar molecule, while grease or oil is a nonpolar molecule.

In the case of nonpolar space groups, clustering of ARCIMBOLDO solutions from secondary-structure models is feasible.

The nonpolar oil is insoluble in water and much prefers sticking to your slightly greasy skin.

Due to the reduced symmetry compared to the nonpolar case the crystals are never strictly cubic.

Hydrophobicity is not critical, as both polar and nonpolar amino acids are found in each group.

Of the four types of bonds defined in chemistry, two are of culinary interest: polar and nonpolar.

Hematopoietic cells have long been defined as round, nonpolar cells that show uniform distribution of cell surface-associated molecules.

Collapse is generally believed to be driven by hydrophobic forces imposed by the presence of nonpolar amino acid side chains.

The transmembrane polypeptide has no stretches of nonpolar residues, uninterrupted by charged side chains, longer than 11 amino acid residues.

An integral step in the process is the addition and full optimization of all hydrogen atoms, both polar and nonpolar.

Polar and nonpolar alignments.

So unlike the oxygen-hydrogen bond, the carbon-hydrogen bond is not polar, and the hydrocarbon chain as a whole is nonpolar.

The fats in the yolk (nonpolar) will prevent the whites from being able to form a foam when whisked.

Crystal contacts result from more numerous interactions by polar residues, compared with a tendency toward nonpolar amino acids at oligomer interfaces.

Identification of the two hydrophobic residues that make nonpolar contacts suggests a general recognition motif of acidic activation domains for hTAFII31.

Mutagenesis studies show that the additional nonpolar contacts provided by the Ile in bNOS contribute to tighter binding toward the bacterial enzyme.