Magnetic Stimulus Responsive DDS Based on Chitosan Microbeads Embedded with Magnetic Nanoparticles

In this paper, we have presented a novel Drug Delivery Substrate (DDS) that that is responsive to external stimuli of high-frequency alternating magnetic fields. The DDS is constituted of chitosan crosslinked with PEGDMA (polyethylene glycol dimethacrylate), loaded with Fe 3 O 4 magnetic nanoparticl...

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Bibliographic Details
Main Authors: Mohapatra, A., Fujiwara, T., Harris, M. A., LeVine, D. A., Ghimire, M., Morshed, B. I., Jennings, J. A., Bumgardner, J., Haggard, W. O., Mishra, S. R.
Format: Conference Proceeding
Language:English
Subjects:
Drugs
Hyperthermia
Magnetic nanoparticles
Magnetic resonance imaging
Magnetic separation
Magnetometers
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Summary:In this paper, we have presented a novel Drug Delivery Substrate (DDS) that that is responsive to external stimuli of high-frequency alternating magnetic fields. The DDS is constituted of chitosan crosslinked with PEGDMA (polyethylene glycol dimethacrylate), loaded with Fe 3 O 4 magnetic nanoparticles and vancomycin. In another experiment, a 19-hour elution was observed where three magnetic stimuli of 25 mT, 109.9 kHz were given for 60 min to the test samples. The stimuli were separated by several hours. After excitation span, it was observed that the stimulated samples released a significantly higher amount of vancomycin by as much as 21% compared to non-stimulated samples. In another study, preliminary results showing the effect of different PEGDMA chain lengths have been discussed. These results show evidence of a smart, controllable DDS that allows modulation of its normal passive antibiotic elution by applying external stimuli per personalized needs.
ISSN:1558-4615
2694-0604
DOI:10.1109/EMBC.2019.8857406