New structures, e.g. useful for purifying nanotubes, comprise rings of polymerized lipid molecules around nanotubes, the lipid molecules comprising one or two alkadiyne chains attached to a polar head group

摘要

New structures comprise rings of polymerized lipid molecules around nanotubes, the lipid molecules comprising one or two alkadiyne chains attached to a polar head group. New structures comprise rings of polymerized lipid molecules of formula (I) around nanotubes: (A) xZ (I) x : 1 or 2; A : CH 3(CH 2) m-CC-CC-(CH 2) n-; n, m : 1-16; Z : COOH, CONHY, NH 2, N +>(R) 3, (-OCH 2CH 2) 2CHOCH 2COOR 2 or (-OCH 2) 2CHOR 2 or a sugar or polysaccharide residue; R : 1-4C alkyl; Y : (CH 2) 4-CHR 1-N(CH 2COOH) 2; R 1H or COOH; R 2COOH, CONHY 1 or a sugar or polysaccharide residue; Y 1(CH 2) 4-CHR 3-N(CH 2COOH) 2; R 3H or COOH. Independent claims are also included for: (1) production of the above structures by suspending crude nanotubes in a solution of the lipid molecules and polymerizing the lipid molecules that have self-assembled around the nanotubes; (2) purifying nanotubes by treating the above structures to remove the rings of polymerized lipid molecules.