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Related Experiment Video

Updated: Mar 13, 2026

A Tripeptide-Stabilized Nanoemulsion of Oleic Acid
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Dipeptide concave nanospheres based on interfacially controlled self-assembly: from crescent to solid.

Juan Wang1, Guizhi Shen1, Kai Ma2

  • 1State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P. R. China. yanxh@ipe.ac.cn.

Physical Chemistry Chemical Physics : PCCP
|October 11, 2016
PubMed
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Researchers created tunable concave nanospheres using self-assembling dipeptides. These nanomaterials offer precise control over structure for applications in separation and delivery systems.

Area of Science:

  • Supramolecular Chemistry
  • Nanomaterials Science
  • Biomaterials Engineering

Background:

  • Dipeptide self-assembly offers versatile routes to nanomaterials.
  • Concave nanostructures are valuable for biomacromolecular modeling and separation applications.
  • Kinetic control over self-assembly enables the creation of dynamic and functional nanomaterials.

Purpose of the Study:

  • To develop dipeptide-based concave nanospheres with tunable structures.
  • To investigate the synergistic thermodynamic and kinetic control mechanisms governing nanosphere formation.
  • To demonstrate the potential for functionalization of these nanostructures.

Main Methods:

  • Interfacial self-assembly of diphenylalanine (FF) bola-dipeptides (FF-GAn-FF).

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Last Updated: Mar 13, 2026

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  • Covalent Schiff's base reaction between glutaraldehyde (GA) and FF amino groups to form building blocks.
  • Synergistic thermodynamic and kinetic control of nucleation and growth processes.
  • Encapsulation of inorganic nanoparticles within the concave nanospheres.

    • Main Results:

    • Successfully synthesized concave nanospheres with structures ranging from crescent-like to solid interiors.
    • Demonstrated that thermodynamics are governed by bola-dipeptide formation and non-covalent interactions.
    • Showed that kinetics are dictated by bola-dipeptide formation rate and interfacial nucleation.
    • Achieved facile functionalization by encapsulating magnetic nanoparticles.

    Conclusions:

    • Dipeptide-based concave nanospheres can be precisely engineered through interfacial self-assembly and covalent modification.
    • Synergistic thermodynamic and kinetic control allows for tunable nanosphere morphology.
    • These functionalizable concave nanospheres hold promise for advanced separation and delivery applications.