https://www.selleckchem.com/pr....oducts/opb-171775.ht
In contrast, the switching "off" state of drug-releasing could be realized by the magnetic bar placed at the bottom of the device as only 10% (w/w) of the drug could be released within 12 h. An anti-cancer substance, 5-fluorouracil (FLU), was used as the model drug to illustrate the drug release behaviour of the device under different strengths of magnetic fields applied. In vitro cell culture studies also demonstrated that the stronger the magnetic field applied, the higher the drug release from the deformed PDMS sponge cylinder and
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