Self-Assembly of Diphenylalanine-Based Nanostructures in Water and Electrolyte Solutions
Joint Authors
Acuña-Nelson, Sergio-Miguel
Toledo, Pedro G.
Veloso, María C.
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-07-11
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
Diphenylalanine (FF) is a peptide that can form different nanostructures; this makes it particularly attractive for both biological and technological applications.
However, any application using this type of nanostructures requires controlling their size and shape.
Information is provided about the various structures formed through the peptide FF self-assembly in different salt solutions (NaCl, CaCl2, and AlCl3), concentrations (50 mM, 100 mM, and 200 mM), and pH (3 to 10).
Transmission electron microscopy (TEM), scanning electron microscopy (SEM), and Fourier-transform infrared (FTIR) spectroscopy were used to characterize the nanotubes.
Results show that FF nanotube formation through self-assembly is a delicate balance between electrostatic, hydrogen bonding, and hydrophobic interactions; any imbalance in these can impede nanotube formation.
Our results demonstrate that salts, such as NaCl and CaCl2, along with the studied concentrations promote the formation of very long nanotube agglomerates.
This would be due to a combined screening effect and the fact that cations are structure-forming and promote hydrophobic interactions; therefore, nanotube agglomeration occurs and also benefits electrostatic interactions, hydrogen bonds, and longer nanotubes.
The presence of AlCl3 produces an imbalance in the abovementioned interactions because of excess Cl-, a structure-breaking anion that impedes the nanostructure formation.
American Psychological Association (APA)
Acuña-Nelson, Sergio-Miguel& Veloso, María C.& Toledo, Pedro G.. 2018. Self-Assembly of Diphenylalanine-Based Nanostructures in Water and Electrolyte Solutions. Journal of Nanomaterials،Vol. 2018, no. 2018, pp.1-7.
https://search.emarefa.net/detail/BIM-1194865
Modern Language Association (MLA)
Acuña-Nelson, Sergio-Miguel…[et al.]. Self-Assembly of Diphenylalanine-Based Nanostructures in Water and Electrolyte Solutions. Journal of Nanomaterials No. 2018 (2018), pp.1-7.
https://search.emarefa.net/detail/BIM-1194865
American Medical Association (AMA)
Acuña-Nelson, Sergio-Miguel& Veloso, María C.& Toledo, Pedro G.. Self-Assembly of Diphenylalanine-Based Nanostructures in Water and Electrolyte Solutions. Journal of Nanomaterials. 2018. Vol. 2018, no. 2018, pp.1-7.
https://search.emarefa.net/detail/BIM-1194865
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1194865