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Polymeric carriers enhance targeted drug delivery by increasing efficacy while minimizing off-target effects. These carriers comprise a biodegradable polymeric backbone integrated with functional elements that enable targeting, improve physicochemical properties, and regulate drug release.Targeting MechanismsThe targeting ability of polymeric carriers is mediated by a homing device, which is a molecular recognition component designed to selectively bind to specific tissues or cells. Monoclonal...

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Related Experiment Video

Updated: May 7, 2026

Anionic Polymerization of an Amphiphilic Copolymer for Preparation of Block Copolymer Micelles Stabilized by π-π Stacking Interactions

Anionic Polymerization of an Amphiphilic Copolymer for Preparation of Block Copolymer Micelles Stabilized by π-π Stacking Interactions

Published on: October 10, 2016

Phenylboronic acid-functionalized polymeric micelles with a HepG2 cell targetability.

Xiaojin Zhang¹, Zhenguo Zhang, Xin Su

¹Key Laboratory of Biomedical Polymers of Ministry of Education, Department of Chemistry, Wuhan University, Wuhan 430072, PR China.

|October 1, 2013

Summary

A novel phenylboronic acid-functionalized copolymer, Pluronic-PMCC-BA, forms micelles for drug delivery. These micelles target and enhance drug uptake in HepG2 cancer cells, showing promise for targeted cancer therapy.

Keywords:

Controlled drug release Copolymer Pluronics Polycarbonate Polymeric micelle

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Published on: August 6, 2019

Area of Science:

Polymer Chemistry
Nanotechnology
Biomaterials

Background:

Amphiphilic block copolymers are crucial for self-assembly into nanostructures for drug delivery.
Targeted drug delivery systems aim to improve therapeutic efficacy and reduce side effects.
Phenylboronic acid functionalization offers specific cell recognition capabilities.

Purpose of the Study:

To synthesize and characterize a phenylboronic acid-functionalized amphiphilic block copolymer, Pluronic-PMCC-BA.
To evaluate the self-assembly properties and micelle formation of Pluronic-PMCC-BA.
To investigate the potential of Pluronic-PMCC-BA as a targeted drug delivery vehicle for cancer cells.

Main Methods:

Synthesis of Pluronic-PMCC-BA via ring-opening polymerization and functionalization.
Characterization of micelle formation using dynamic light scattering and transmission electron microscopy (TEM).
Cytotoxicity assessment using MTT assays and cellular uptake studies via confocal laser scanning microscopy (CLSM).

Main Results:

Pluronic-PMCC-BA successfully self-assembles into stable micelles (approx. 60 nm diameter) in aqueous solutions.
The copolymer exhibits low cytotoxicity at relevant concentrations.
Phenylboronic acid groups on the micelle surface facilitate targeted recognition and enhanced drug uptake in HepG2 cells.

Conclusions:

Pluronic-PMCC-BA is a promising biocompatible material for forming targeted drug delivery nanomicelles.
The targeted interaction with HepG2 cells highlights its potential for enhanced cancer therapy.
Further development could lead to advanced therapeutic strategies for various cancers.