Patchs for drug delivery are improved in production and function;
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An assistant professor with the Virginia Tech - Wake Forest School of Biomedical Engineering has developed a flexible microneedle patch that allows drugs to be delivered directly and fully through the skin.
The new patch can quicken drug delivery time while cutting waste, and can likely minimize side-effects in some cases, notable in vaccinations and cancer therapy. Leading development of the flexible patch was Lissett Bickford, now an assistant professor and researcher of biomedical engineering and the mechanical engineering.
Microneedle patch technology used on the skin has existed for several years, each patch containing an array of hundreds of micron-sized needles that pierce the skin and dissolve, delivering embedded therapeutics. However, because of their rigid chemical makeup, the patches proved difficult in fully piercing into the skin, creating a waste of drug material and a slowed delivery time. Additionally, the patches also have been difficult to produce in bulk; typical fabrication procedures have required centrifugation.
Bickford, with her research team, including graduate student Katherine A. Moga, were able to develop a new flexible microneedle patch that forms to the skin directly – think a regular household bandage – and then fully pierces the skin and dissolves. Bickford said the softer, more malleable and water-soluble material also allows for more precise control over the shape, size, and composition of the patch, with little to no waste.
The nanoparticle, micro-molding patch is based on Particle Replication In Non-wetting Templates (PRINT for short) technology, developed by researcher and professor Joseph DeSimone. Unlike other methods for making these patches, the new technology allows for quicker and greater wide-scale production, reducing related costs.
MEDICA.de; Source: Virginia Tech