2002
DOI: 10.1073/pnas.032527099
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Entropically driven self-assembly of multichannel rosette nanotubes

Abstract: Rosette nanotubes are a new class of organic nanotubes obtained through the hierarchical self-assembly of low molecular weight synthetic modules in water. Here we demonstrate that these materials can serve as scaffolds for the supramolecular synthesis of multichannel nanotubular architectures and report on the discovery of their entropy-driven self-assembly process.U nidimensional nanotubular objects have captivated the minds of the scientific community over the past decade because of their boundless potential… Show more

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Cited by 163 publications
(95 citation statements)
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“…Nanotubes can be obtained from a large variety of monomers such as cyclic peptides, as demonstrated in (Ghadiri et al, 1993) and (Tarek et al, 2003), linear peptide fragments such as phenylene ethynylene oligomers (Kim et al, 2010, Slotta et al, 2008 and disc-shaped motifs. Another structure that shares the tubular configuration is that of the rosette nanotubes formed from a heteroaromatic bicyclic base (Fenniri et al, 2002). Figure 1 offers illustrations of these different formation processes.…”
Section: Nanotubesmentioning
confidence: 99%
“…Nanotubes can be obtained from a large variety of monomers such as cyclic peptides, as demonstrated in (Ghadiri et al, 1993) and (Tarek et al, 2003), linear peptide fragments such as phenylene ethynylene oligomers (Kim et al, 2010, Slotta et al, 2008 and disc-shaped motifs. Another structure that shares the tubular configuration is that of the rosette nanotubes formed from a heteroaromatic bicyclic base (Fenniri et al, 2002). Figure 1 offers illustrations of these different formation processes.…”
Section: Nanotubesmentioning
confidence: 99%
“…The building blocks of the RNTs are fused guanine-cytosine bases, hereby referred to as G∧C bases that entropically form a six membered rosette through WatsonCrick hydrogen bonding. These rosettes then stack upon one another through pi bonding, forming rosettes of tunable length [15]. The major advantage to the RNT system is that the G∧C building blocks can be functionalized with a variety of functional groups such as aptamers, proteins or peptides.…”
Section: Introductionmentioning
confidence: 99%
“…These HRN are assembled from a single bicyclic block with a Guanine-Cytosine (GC) motif designed to have hydrogen-bond donor-donor-acceptor array on one side and complementary acceptordonor array on the other side (Fig la). These building blocks assemble through H-bonds to form the rosette, which then stack to form a nanotube with a hollow core 11lA across and up to several micrometers long (Fig lb) [2]. The tube structure is maintained by electrostatic, hydrophobic and stacking interactions.…”
Section: Introductionmentioning
confidence: 99%
“…A class of organic nanotubes called helical rosette nanotubes (HRN) have been synthesized [1][2][3][4]. They possess properties suited for various nanotechnology applications such as implant materials, molecular electronic or photonic devices and, drug delivery systems [2,4].…”
Section: Introductionmentioning
confidence: 99%
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