apolar


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apolar

 [a-po´lar]
having neither poles nor processes; without polarity.

a·po·lar

(ā-pō'lăr),
1. Without poles; specifically denoting embryonic nerve cells (neuroblasts) that have not yet begun to sprout processes.
2. Synonym(s): hydrophobic (2)
References in periodicals archive ?
In terms of the basic character of the intermediate filament fiber, it is an apolar structure because the two dimers come together in antiparallel fashion to form a tetramer.
Therefore, the apolar and polar surface tension parameters are influenced by the nature and composition of solvent/nonsolvent mixtures from which the films had been prepared.
Note: RI (a) and RI (b): retention indices relatives to n-alcanes, on (a) apolar column (HP-5) and (b) polar column (HP-Innowax).
[RP.sub.18], precolumns (Merck) were used to protect the column from apolar ingredients of biologic material.
On the other hand, the presence of apolar methylene and methine groups in the backbone and the ring conferring hydrophobic properties cause the opposite effect over the release process.
adolescentis activity, while the apolar substituent groups of methyl and methoxyl in chrysophanol and physicion might play a weakening role on antibacterial activity.
Originally, for the MAn-g-IIR, the driving force for the formation of these aggregates is due to the large polarity difference between the polar anhydride groups and the apolar IIR chains.
Interactive use of linear retention indices on polar and apolar columns with an ms-library for reliable characterisation of Australian tea tree and other Melaleuca sp.
This is probably related to the strong hydrophobic character of the clay that permits a high compatibility with the apolar NR/BR matrix.
2008), Brazilian cherry oil was submitted to this methodology and showed that the most apolar fraction (obtained with pentane) gave hydrocarbon sesquiterpenes and furano-sesquiterpenes in 56% (w/w).
One of the most widely used nucleating agents is the so-called "clarifier," dimethyl dibenzylidene sorbitol (DMDBS), which is the latest generation benzylidene sorbitol derivative (11), DMDBS is a butterfly-shaped molecule that hydrogen bonds in apolar matrices to form crystalline nanofibers, on whose surface polymer crystallization is nucleated (12).