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We use three alkyl-polyglycerol derivatives to suspend single-Molecular sketch of the studied surfactants. tween aromatic moieties and SWNTs of Alteration of the (n1,n2) distribution in been achieved by synthesizing ad hoc. Naturally occurring molecules may be se purposes: for instance, using DNA and co-workers [8] have been able to select onducting SWNT single-chirality species. In a recent work, we synthesized, in the framework of classed into two categories, depending on whether the selection of the single (n1,n2) chirality is performed during orof applications. This big advantage doubles as a drawback, as the synthesis process provides, within the same batch, CNTs with different chiralities, which are strongly aggregated into big bundles. The isolation of a single variety of nanotubes with a specific chirality is thus of big technologica