Directed Assembly of Multi-Walled Nanotubes and Nanoribbons of Amino Acid Amphiphiles Using a Layer-by-Layer Approach.
amino acid amphiphiles
cryogenic transmission electron microscopy
layer-by-layer assembly
multilayer nanotubes
small-angle neutron scattering
Journal
Chemistry (Weinheim an der Bergstrasse, Germany)
ISSN: 1521-3765
Titre abrégé: Chemistry
Pays: Germany
ID NLM: 9513783
Informations de publication
Date de publication:
21 Apr 2021
21 Apr 2021
Historique:
revised:
05
02
2021
received:
15
12
2020
pubmed:
10
2
2021
medline:
27
4
2021
entrez:
9
2
2021
Statut:
ppublish
Résumé
Monodisperse unilamellar nanotubes (NTs) and nanoribbons (NRs) were transformed to multilamellar NRs and NTs in a well-defined fashion. This was done by using a step-wise approach in which self-assembled cationic amino acid amphiphile (AAA) formed the initial NTs or NRs, and added polyanion produced an intermediate coating. Successive addition of cationic AAA formed a covering AAA layer, and by repeating this layer-by-layer (LBL) procedure, multi-walled nanotubes (mwNTs) and nanoribbons were formed. This process was structurally investigated by combining small-angle neutron scattering (SANS) and cryogenic-transmission electron microscopy (cryo-TEM), confirming the multilamellar structure and the precise layer spacing. In this way the controlled formation of multi-walled suprastructures was demonstrated in a simple and reproducible fashion, which allowed to control the charge on the surface of these 1D aggregates. This pathway to 1D colloidal materials is interesting for applications in life science and creating well-defined building blocks in nanotechnology.
Identifiants
pubmed: 33560564
doi: 10.1002/chem.202005331
pmc: PMC8251557
doi:
Substances chimiques
Amino Acids
0
Nanotubes, Carbon
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
6904-6910Subventions
Organisme : Deutsche Forschungsgemeinschaft
ID : GR1030/14-1
Organisme : Israel Science Foundation
ID : 1117/16
Informations de copyright
© 2021 The Authors. Chemistry - A European Journal published by Wiley-VCH GmbH.
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