Observing the Kinetic Pathway of Nanotube Formation from Bolaamphiphiles by Time-Resolved Small-Angle X‑ray Scattering

We investigated the formation kinetics of a single monolayer nanotube from bolaamphiphiles (consisting of a sugar residue, an alkyl chain, and an amino group) in solution. In this bolaamphiphile, a transition from a monomerically dispersed state to the nanotube takes place by changing the solvent co...

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Bibliographic Details
Published in:The journal of physical chemistry. B 2019-05, Vol.123 (19), p.4340-4345
Main Authors: Takahashi, Rintaro, Kawauchi, Hiroki, Kameta, Naohiro, Lee, Ji Ha, Fujii, Shota, Shimizu, Toshimi, Sakurai, Kazuo
Format: Article
Language:English
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Summary:We investigated the formation kinetics of a single monolayer nanotube from bolaamphiphiles (consisting of a sugar residue, an alkyl chain, and an amino group) in solution. In this bolaamphiphile, a transition from a monomerically dispersed state to the nanotube takes place by changing the solvent condition. This transition was induced by fast mixing with a stopped-flow apparatus. From just after the mixing, this transition process was monitored in situ by time-resolved small-angle X-ray scattering. In this manner, we were able to derive the direct structural information as a function of time during the nanotube formation. The results revealed that disklike aggregates initially formed, which then grew and closed to produce a tubular structure.
ISSN:1520-6106
1520-5207
DOI:10.1021/acs.jpcb.9b01746