作者
Ankita Mohapatra, Michael A Harris, David LeVine, Madhav Ghimire, Jessica A Jennings, Bashir I Morshed, Warren O Haggard, Joel D Bumgardner, Sanjay R Mishra, Tomoko Fujiwara
发表日期
2018/8
期刊
Journal of Biomedical Materials Research Part B: Applied Biomaterials
卷号
106
期号
6
页码范围
2169-2176
简介
Local antibiotic delivery can overcome some of the shortcomings of systemic therapy, such as low local concentrations and delivery to avascular sites. A localized drug delivery system (DDS), ideally, could also use external stimuli to modulate the normal drug release profile from the DDS to provide efficacious drug administration and flexibility to healthcare providers. To achieve this objective, chitosan microbeads embedded with magnetic nanoparticles were loaded with the antibiotic vancomycin and stimulated by a high frequency alternating magnetic field. Three such stimulation sessions separated by 1.5 h were applied to each test sample. The chromatographic analysis of the supernatant from these stimulated samples showed more than approximately 200% higher release of vancomycin from the DDS after the stimulation periods compared to nonstimulated samples. A 16‐day long term elution study was also …
引用总数
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