Dissolving microneedles are a subgroup of microneedle types that completely dissolve within the skin. During this dissolving process the vaccine, stored in the needle matrix, is released into the... Show moreDissolving microneedles are a subgroup of microneedle types that completely dissolve within the skin. During this dissolving process the vaccine, stored in the needle matrix, is released into the skin. Dissolving microneedles are made of a water-soluble, inert and safe material, such as hyaluronic acid. The microneedles have been used to vaccinate via the skin, which is a very immune competent organ that holds great potential for vaccine delivery. The minimally invasive and easy nature of the injections can reduce the risk of infections and alleviate the need for trained personnel. Furthermore, they eliminate all sharp waste as the needles dissolve during drug delivery.The goals of this project has been to improve the immunogenicity of vaccines through skin delivery, allowing for increased understanding of skin immunology and the development of pain free and safe vaccine delivery systems. Show less