side chain

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side chain

[′sīd ‚chān]
(organic chemistry)
A grouping of similar atoms (two or more, generally carbons, as in the ethyl radical, C2H5‒) that branches off from a straight-chain or cyclic (for example, benzene) molecule. Also known as branch; branched chain.
References in periodicals archive ?
2D) show that [beta]-1 contains mainly an aromatic ring structure and secondly aliphatic side chains. In other words, the molecular structure of [beta]-1 was composed of a large number of polycyclic aromatic molecules with some aliphatic side chains.
During event G, a kink replaces the re-helical turn, and two interactions (the first between R241 and E200 side chains and the second between L238 and I204 side chains) present in X-ray structure of B-conformation [17, 22] facilitate this process.
(18) Therefore, in this study, we investigated methods to improve the surface properties of the cured alicyclic epoxy resin and its coatings by modification with a reactive copolymer which has both a cyclohexene-oxide group and perfluoroalkyl moiety on the branched side chains. In addition, we tried to create coating films with a refractive index gradient on the airside interphase as well as hydro- and oleo-repellencies on the top surface.
Side chains Compatibilizers Octane 3,7-Dimelhyl-6-octylene [M.sub.n] (main chain) (g/mol) A [check] 2200 B [check] 2200 C [check] 2200 D [check] 2200 Compatibilizers Side chains [M.sub.n] content(a) (g/mol) (mol%) A 28.3 3400 B 39.8 4000 C 45.8 4700 D 45.8 5200 (a) Side chains content = nl(m + n), In and n were shown in Scheme 1.
(8) The general synthetic routes to 1 provided the first chemical basis for systematically correlating its unusual side chain structure with biological functions.
If these sulfates are not installed, the cell continues to form proteins for the extracellular matrix, but with modified sugar side chains. These chains in turn send out signals that define the fate of the stem cells.
Other tests in mice showed that side chains of fatty acids, attached to the lipids like fingers on a glove, "keep the myelin-making cells alive and reduce the inflammatory response," Steinman says.
"The challenge is to identify amino acid side chains that would fit perfectly into these surfaces.
Aquivion is a perfluorosulphonic acid (PFSA) polymer which Solexis says has particularly short and light side chains giving it a number of advantages.
Chapters cover PVA-PAMPS as novel hydrocarbon proton-conducting electrolyte membranes, plasticizer incorporated PVA- PAMPS semi-interpenetrating polymer networks, PVA-PAMPS composites on the basis of binary chemical cross-linking or side chains, cell performance of PVA-PAMPS hydrocarbon proton-conducting electrolyte membranes in a real DMFC, and other PVA-based polymer membranes and their applications for PEFC and AFC.
By comparison of the results of chemical and enzymatic deglycosylation of the denaturated lectins we show, which lectin chains are glycosylated and how many sugar side chains form the glycan part of the lectins and which role plays truncation of the glycan chains.
The General Hospital Corporation (Boston, MA) has patented certain membranes, which include side chains or molecular "brushes" having, for example, tertiary amino functional groups, used as highly effective filters to capture viruses/virus particles from liquids without removal of proteins.