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Updated: Dec 24, 2025

Alternating Magnetic Field-Responsive Hybrid Gelatin Microgels for Controlled Drug Release

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Published on: February 13, 2016

Multi-stimuli-responsive magnetic assemblies as tunable releasing carriers.

Xiao-Mei Zhang¹, Kun Guo, Luo-Hao Li

¹Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China. libj@cib.ac.cn.

Journal of Materials Chemistry. B

|April 9, 2020

Summary

Researchers developed novel magnetic micelles using polyethylene glycol and poly(N-isopropylacrylamide) for drug delivery. These smart nanoparticles efficiently load anticancer drugs and respond to stimuli like temperature and pH for controlled release in cancer treatment.

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Fabrication of Magnetic Platforms for Micron-Scale Organization of Interconnected Neurons

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Last Updated: Dec 24, 2025

Alternating Magnetic Field-Responsive Hybrid Gelatin Microgels for Controlled Drug Release

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Published on: February 13, 2016

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Published on: July 4, 2017

Fabrication of Magnetic Platforms for Micron-Scale Organization of Interconnected Neurons

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Published on: July 14, 2021

Area of Science:

Materials Science
Nanotechnology
Biomedical Engineering

Background:

Developing stimuli-responsive drug delivery systems is crucial for targeted cancer therapy.
Magnetic nanoparticles offer unique advantages for drug delivery, including remote control and imaging capabilities.

Purpose of the Study:

To create novel magnetic micelles capable of encapsulating and releasing anticancer drugs in response to multiple stimuli.
To investigate the self-assembly behavior and drug loading efficiency of these hybrid nanostructures.

Main Methods:

Synthesized magnetic nanoparticles functionalized with polyethylene glycol (PEG) and poly(N-isopropylacrylamide) (PNIPAM) via host-guest inclusion.
Utilized the amphiphilic nature of the functionalized nanoparticles above the lower critical solution temperature (LCST) of PNIPAM for self-assembly.
Characterized the resulting magnetomicelles for size, morphology, drug loading capacity, and magnetic properties.

Main Results:

Achieved self-assembly of magnetic nanoparticles into micelles approximately 250 nm in size.
Demonstrated high drug loading capacity for doxorubicin (DOX) and high saturation magnetization.
Confirmed stimuli-responsive disassembly of micelles in response to temperature, H2O2, or pH, enabling tunable drug release.

Conclusions:

The developed magnetic micelles show significant potential for targeted cancer therapy due to their stimuli-responsive drug release and magnetic properties.
These hybrid nanocarriers offer a versatile platform for advanced drug delivery systems in oncology.
The ability to independently or combinatorially control drug release using multiple stimuli enhances therapeutic precision.