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  2. Hydrophobic effect - Wikipedia

    en.wikipedia.org/wiki/Hydrophobic_effect

    The hydrophobic effect was found to be entropy-driven at room temperature because of the reduced mobility of water molecules in the solvation shell of the non-polar solute; however, the enthalpic component of transfer energy was found to be favorable, meaning it strengthened water-water hydrogen bonds in the solvation shell due to the reduced ...

  3. Hydrophile - Wikipedia

    en.wikipedia.org/wiki/Hydrophile

    An example of these amphiphilic molecules is the lipids that comprise the cell membrane. Another example is soap, which has a hydrophilic head and a hydrophobic tail, allowing it to dissolve in both water and oil. Hydrophilic and hydrophobic molecules are also known as polar molecules and nonpolar molecules, respectively. Some hydrophilic ...

  4. Amphiphile - Wikipedia

    en.wikipedia.org/wiki/Amphiphile

    Thus the inside of the bilayer sheet is a non-polar region sandwiched between the two polar sheets. [ 2 ] Although phospholipids are the principal constituents of biological membranes, [ 3 ] there are other constituents, such as cholesterol and glycolipids , which are also included in these structures and give them different physical and ...

  5. Hydrophobe - Wikipedia

    en.wikipedia.org/wiki/Hydrophobe

    Examples of hydrophobic molecules include the alkanes, oils, fats, and greasy substances in general. Hydrophobic materials are used for oil removal from water, the management of oil spills, and chemical separation processes to remove non-polar substances from polar compounds. [2] Hydrophobic is often used interchangeably with lipophilic, "fat ...

  6. Oil - Wikipedia

    en.wikipedia.org/wiki/Oil

    An oil is any nonpolar chemical substance that is composed primarily of hydrocarbons and is hydrophobic (does not mix with water) and lipophilic (mixes with other oils). Oils are usually flammable and surface active.

  7. Chemical polarity - Wikipedia

    en.wikipedia.org/wiki/Chemical_polarity

    A polar molecule has a net dipole as a result of the opposing charges (i.e. having partial positive and partial negative charges) from polar bonds arranged asymmetrically. Water (H 2 O) is an example of a polar molecule since it has a slight positive charge on one side and a slight negative charge on the other. The dipoles do not cancel out ...

  8. Biomolecule - Wikipedia

    en.wikipedia.org/wiki/Biomolecule

    Most lipids consist of a polar or hydrophilic head (typically glycerol) and one to three non polar or hydrophobic fatty acid tails, and therefore they are amphiphilic. Fatty acids consist of unbranched chains of carbon atoms that are connected by single bonds alone ( saturated fatty acids) or by both single and double bonds ( unsaturated fatty ...

  9. Non-covalent interaction - Wikipedia

    en.wikipedia.org/wiki/Non-covalent_interaction

    The hydrophobic effect is the desire for non-polar molecules to aggregate in aqueous solutions in order to separate from water. [22] This phenomenon leads to minimum exposed surface area of non-polar molecules to the polar water molecules (typically spherical droplets), and is commonly used in biochemistry to study protein folding and other ...

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