hydrophobic interaction

(redirected from hydrophobic bond)

hy·dro·pho·bic in·ter·ac·tion

interaction between uncharged substituents on different molecules without a sharing of electrons or protons; entropy-driven interaction.
Synonym(s): apolar interaction


1. pertaining to hydrophobia (rabies).
2. repelling water; insoluble in water; not readily absorbing water.

hydrophobic interaction
interaction of nonpolar (un-ionizable) hydrocarbon molecules forced together because of stronger water-water interaction.
hydrophobic signal peptides
15 to 30 amino acids located at or near the N-terminus of a protein that always includes a hydrophobic core of at least eight nonpolar amino acids, found in proteins that are synthesized on membrane bound ribosomes and destined for export from the cell.
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References in periodicals archive ?
However, above the LCST, the polymers remained intact which is due to the dominance of the hydrophobic bonds present in the system.
The "weak" hydrogen and hydrophobic bonds are the most common and most studied, but maybe there are circumstances in which tannins get strongly bonded--covalent bonds--to whatever works for them, rendering them nearly impervious to conventional winemaking methods.
In addition between 25 and 35[degrees]C, the solution showed a decrease in viscosity attributed to the breaking of hydrophobic bonds and the decrease in the relaxation time as well as to the increase in temperature.
Starting at 40CC, viscosity values are close to 100,00 en 25 and 30[degrees]C the viscosity decreases along with the amount of hydrophobic bonds since the increase in temperature destroys this kind of interactions.
On the other hand, it can be assumed that the addition of SDS to the sample shifts the LCST to a range between 35 and 40[degrees]C due to the generation of new unions in this temperature interval attributed to the NIPAM hydrophobic bonds.
For this solution, it is observed that between 25 and 40[degrees]C the viscosity tends to decrease as the temperature rises, although it is caused by the rupture of hydrophobic bonds, the time of interaction remains stable because the SDS reinforces these unions, requiring more time to be broken by the effect of temperature.