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Updated: Jun 19, 2026
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Self-assembling Morphologies Obtained from Helical Polycarbodiimide Copolymers and Their Triazole Derivatives
Published on: February 7, 2017
Tripodal amphiphiles tunable for self-assembly to polymersomes
Yong Joo Jun1, Min Kyoung Park, Vithal B Jadhav
1Center for Intelligent Nano-Bio Materials, Ewha Womans University, 11-1 Daehyun-Dong, Seodaemun-Gu, Seoul 120-750, Republic of Korea.
Summary
New tripodal amphiphiles self-assemble into drug-delivery polymersomes or micelles based on peptide hydrophobicity. These biodegradable polymersomes show promise for biomedical applications, particularly in cancer treatment.
Area of Science:
- Supramolecular Chemistry
- Polymer Science
- Nanotechnology
- Materials Science
Background:
- Linear block copolymer amphiphiles are common self-assembling systems.
- Tripodal amphiphiles offer unique structural and interaction possibilities.
- Controlling self-assembly is crucial for applications like drug delivery.
Purpose of the Study:
- To synthesize and characterize novel tripodal amphiphiles based on cyclotriphosphazenes.
- To investigate the self-assembly behavior of these amphiphiles.
- To evaluate the potential of the self-assembled structures for drug delivery and biomedical applications.
Main Methods:
- Synthesis of cyclotriphosphazenes grafted with polyethylene glycol and hydrophobic oligopeptides.
- Tuning amphiphile hydrophobicity via oligopeptide selection (quantified by log P).
- Characterization of self-assembled structures (micelles and polymersomes) using various techniques.
- Evaluation of polymersome properties for drug delivery, including stability and tumor targeting (EPR effect).
Main Results:
- Tripodal amphiphiles self-assembled into micelles or bilayered polymersomes based on oligopeptide hydrophobicity.
- Amphiphiles with intermediate hydrophobicity (0
- Amphiphiles with high hydrophobicity (log P>1) formed stable micelles.
- Biodegradable polymersomes exhibited excellent physicochemical properties for drug delivery.
- A specific platinum-containing polymersome demonstrated high tumor selectivity via the EPR effect.
Conclusions:
- Tripodal amphiphiles provide a tunable platform for creating self-assembled nanostructures.
- Hydrophobicity is a key parameter controlling the self-assembly pathway (micelles vs. polymersomes).
- The developed biodegradable polymersomes are promising candidates for drug delivery and preclinical studies, especially in oncology.
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