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Nanotubes from a vitamin C-based bolaamphiphile

Ambrosi, M ; Fratini, E ; Alfredsson, Viveka LU ; Ninham, BW ; Giorgi, R ; Lo Nostro, P and Baglioni, P (2006) In Journal of the American Chemical Society 128(22). p.7209-7214
Abstract
A bolaform surfactant, 1,12-diascorbyl dodecanedioate (BOLA12), with ascorbic acid units as the polar headgroups was synthesized for the first time. Once dispersed in water above 0.5% w/w, BOLA12 forms hollow nanotubes as revealed by cryo-TEM experiments. These nanostructures transform into clear micellar solutions on heating. X-ray diffraction and SAXS experiments were performed both on the pure solid and on its aqueous dispersions. The critical aggregation concentration and the phase behavior were determined by conductivity and DSC experiments. The latter technique provided also the amount of strongly bound, solvating water molecules that surround the polar headgroups. BOLA12 shows the same reducing properties of ascorbic acid, as... (More)
A bolaform surfactant, 1,12-diascorbyl dodecanedioate (BOLA12), with ascorbic acid units as the polar headgroups was synthesized for the first time. Once dispersed in water above 0.5% w/w, BOLA12 forms hollow nanotubes as revealed by cryo-TEM experiments. These nanostructures transform into clear micellar solutions on heating. X-ray diffraction and SAXS experiments were performed both on the pure solid and on its aqueous dispersions. The critical aggregation concentration and the phase behavior were determined by conductivity and DSC experiments. The latter technique provided also the amount of strongly bound, solvating water molecules that surround the polar headgroups. BOLA12 shows the same reducing properties of ascorbic acid, as indicated by the antioxidant activity evaluated with the DPPH method. This feature was used for the reduction of Pd(II) ions on the surface of the nanoassemblies, which lead to the formation of large bundles homogeneously coated with palladium as observed in SEM micrographs. (Less)
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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of the American Chemical Society
volume
128
issue
22
pages
7209 - 7214
publisher
The American Chemical Society (ACS)
external identifiers
  • wos:000237931700039
  • scopus:33744924867
ISSN
1520-5126
DOI
10.1021/ja057730x
language
English
LU publication?
yes
id
ba11df5f-4aaa-487a-9db5-e4f69b797298 (old id 407391)
date added to LUP
2016-04-01 16:00:08
date last changed
2020-10-27 03:45:06
@article{ba11df5f-4aaa-487a-9db5-e4f69b797298,
  abstract     = {A bolaform surfactant, 1,12-diascorbyl dodecanedioate (BOLA12), with ascorbic acid units as the polar headgroups was synthesized for the first time. Once dispersed in water above 0.5% w/w, BOLA12 forms hollow nanotubes as revealed by cryo-TEM experiments. These nanostructures transform into clear micellar solutions on heating. X-ray diffraction and SAXS experiments were performed both on the pure solid and on its aqueous dispersions. The critical aggregation concentration and the phase behavior were determined by conductivity and DSC experiments. The latter technique provided also the amount of strongly bound, solvating water molecules that surround the polar headgroups. BOLA12 shows the same reducing properties of ascorbic acid, as indicated by the antioxidant activity evaluated with the DPPH method. This feature was used for the reduction of Pd(II) ions on the surface of the nanoassemblies, which lead to the formation of large bundles homogeneously coated with palladium as observed in SEM micrographs.},
  author       = {Ambrosi, M and Fratini, E and Alfredsson, Viveka and Ninham, BW and Giorgi, R and Lo Nostro, P and Baglioni, P},
  issn         = {1520-5126},
  language     = {eng},
  number       = {22},
  pages        = {7209--7214},
  publisher    = {The American Chemical Society (ACS)},
  series       = {Journal of the American Chemical Society},
  title        = {Nanotubes from a vitamin C-based bolaamphiphile},
  url          = {http://dx.doi.org/10.1021/ja057730x},
  doi          = {10.1021/ja057730x},
  volume       = {128},
  year         = {2006},
}