Biological lipid membranes for on-demand, wireless drug delivery from thin, bioresorbable electronic implants

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On-demand, localized release of drugs in precisely controlled, patient-specific time sequences represents an ideal scenario for pharmacological treatment of various forms of hormone imbalances, malignant cancers, osteoporosis, diabetic conditions and others. We present a wirelessly operated, implantable drug delivery system that offers such capabilities in a form that undergoes complete bioresorption after an engineered functional period, thereby obviating the need for surgical extraction. The device architecture combines thermally actuated lipid membranes embedded with multiple types of drugs, configured in spatial arrays and co-located with individually addressable, wireless elements for Joule heating. The result provides the ability for externally triggered, precision dosage of drugs with high levels of control and negligible unwanted leakage, all without the need for surgical removal. In vitro and in vivo investigations reveal all of the underlying operational and materials aspects, as well as the basic efficacy and biocompatibility of these systems.
Publisher
NATURE PUBLISHING GROUP
Issue Date
2015-11
Language
English
Article Type
Article
Keywords

TRANSIENT ELECTRONICS; LIPOSOMAL DOXORUBICIN; BREAST-CANCER; CHOLESTEROL; BILAYERS; HYPERTHERMIA; DEVICES; SYSTEMS; PHASE; MODEL

Citation

NPG ASIA MATERIALS, v.7

ISSN
1884-4049
DOI
10.1038/am.2015.114
URI
http://hdl.handle.net/10203/224808
Appears in Collection
BiS-Journal Papers(저널논문)
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