Issue 14, 2022

Plant-inspired Pluronic–gallol micelles with low critical micelle concentration, high colloidal stability, and protein affinity

Abstract

Polymeric micelles are the most common carriers used for hydrophobic drug delivery. However, they are vulnerable to physiological barriers, such as temperature changes and enzymatic degradation, and can be easily disassembled upon dilution below the critical micelle concentration (CMC) by body fluids after an intravenous injection. Here, we report that Pluronic® micelles with octyl gallate, which is a surfactant containing gallol moieties widely found in antioxidative plant polyphenols, have a low CMC, which improves their colloidal stability without the need for covalent crosslinking. Furthermore, the incorporated gallol moieties provide enzymatic degradation resistance to the micelles owing to their protein affinity, maintaining the hydrophobic cavity of unmodified Pluronic®. Thus, plant-inspired polymeric micelles with low CMC and bioavailability are promising multifunctional vehicles for drug delivery.

Graphical abstract: Plant-inspired Pluronic–gallol micelles with low critical micelle concentration, high colloidal stability, and protein affinity

Article information

Article type
Paper
Submitted
23 apr 2022
Accepted
06 jun 2022
First published
06 jun 2022

Biomater. Sci., 2022,10, 3739-3746

Plant-inspired Pluronic–gallol micelles with low critical micelle concentration, high colloidal stability, and protein affinity

J. Kim, J. Ju, S. D. Kim and M. Shin, Biomater. Sci., 2022, 10, 3739 DOI: 10.1039/D2BM00630H

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