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Updated: Feb 1, 2026

Alternating Magnetic Field-Responsive Hybrid Gelatin Microgels for Controlled Drug Release
Published on: February 13, 2016
Fabrication of step-by-step drug release system both sensitive to magnetic field and temperature based on layered
Fengzhu Lv1, Chong Li1, Yong Ma1
1School of Materials Science and Technology, China University of Geosciences (Beijing), Beijing, People's Republic of China.
Abstract:
Fabrication of environmental sensitive and controllable drug release systems is urgently needed. In this paper, thermosensitive and magnetic response drug release systems were fabricated via layer-by-layer technique using acetylsalicylic acid (AA) intercalated ZnAl-LDH as core, poly (N-isopropylacrylamide) (PNIPAM) and AA micelles as well as small size ZnAl-LDH sheets as building blocks of the shell. By forming anionic micelles, cationic PNIPAM macromolecules were sandwiched in the LDH sheets with cationic charges which provided a novel way of fabrication of drug release systems. The characteristics of the building blocks, the fabrication process and the release behaviors of the as-prepared drug release systems were characterized in detail. Due to the micro-environmental difference of AA in the core and shell of the systems, step-by-step release behaviors were observed. Also the drug release systems showed obvious temperature and magnetic field dependent responsibility. The obtained assembly is a potential drug release system.
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