Fecha de publicación:
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Fuente:
WIPO "tomato"
This invention relates to drug-device core-shell microneedle devices containing anti-diabetes and anti-obesity medications, and transdermal delivery of said medications. The microneedle drug-device system comprises: (a) a two-dimensional array of conical bilayer containing an inner layer with the base diameter ranging from about 100 μm to about 500 μm and the height ranging from about 100 μm about 1200 μm capable of accommodating a known amount of anti-diabetes and/or anti-obesity medications, and a suitable, photostable chromophore or a fluorophore whose absorption and/or emission occurring in the range of 400-900 nm; (b) a larger outer layer that adheres to and encapsulates the inner layer, and protects the inner layer, and (c) a two-dimensional array of cylindrical ‘cap layer’ that aligns with and adheres to the basal surface of core shell bilayer and seals the bilayer to prevent leakage of said medication(s). The apical (i.e., sharp) ends of the conical bilayer array inserts into the skin and are programmed to allow the said medications to effuse out of the bilayer and into the skin in a controlled fashion and to be monitored by photodetection devices.