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Updated: Jan 7, 2026
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Formation of Ordered Biomolecular Structures by the Self-assembly of Short Peptides
Published on: November 21, 2013
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Highly stable self-assembled nanotubes from a bipyridinium-based amphiphilic pseudopeptide
Alejandro Vila1, Valentina Gauci1, Arturo Blanco-Gómez1
1Interdisciplinary Center for Chemistry and Biology (CICA) and Department of Chemistry, Faculty of Science, University of Coruña, 15071 A Coruña, Spain. arturo.blanco.gomez@udc.es.
Chemical Communications (Cambridge, England)
|January 5, 2026
Summary
Researchers developed an amphiphilic pseudopeptide that forms stable, cationic nanotubes. These self-assembling nanotubes show rapid formation, thermal stability, and can create hydrogels across a wide concentration range.
Area of Science:
- Supramolecular Chemistry
- Materials Science
- Nanotechnology
Background:
- Self-assembly is a key process in creating ordered nanostructures.
- Amphiphilic molecules are crucial building blocks for self-assembled materials.
- Controlling nanostructure formation under physiological conditions is challenging.
Purpose of the Study:
- To report a novel amphiphilic pseudopeptide.
- To investigate its self-assembly into cationic nanotubes.
- To characterize the stability and concentration-dependent behavior of the nanotubes.
Main Methods:
- Synthesis of an amphiphilic pseudopeptide.
- Spontaneous self-assembly studies under physiological conditions.
- Characterization of nanotube morphology, stability, and hydrogel formation.
Main Results:
- The pseudopeptide self-assembles into monodisperse cationic nanotubes.
- Nanotubes exhibit rapid self-assembly, high thermal stability, and thermoreversibility.
- Stable hydrogels form above 5 mM, with nanostructures preserved at micromolar levels.
Conclusions:
- The developed pseudopeptide is a versatile building block for self-assembled nanomaterials.
- The broad concentration range allows for tunable material properties, from nanostructures to hydrogels.
- This system offers potential for applications requiring stable cationic nanostructures under physiological conditions.
