Effective systems delivering drugs to the skin using nanoneedle

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Development of the delivery systems which can introduce therapeutic molecules into targeting organs surely make a progress of treatments in clinical practice. We pay strong attention to a nanoneedle method. The needles containing drugs go into the skin, are broken, are remained and release the drugs to the skin. In this study, we first examined the appropriate length of the needle and then checked material properties of the needle. Next, we tried to introduce some dye into skin using the nanoneedles and we found the dye in the skin. However, introducing rate was not enough for protein and genes in the aspect of clinical use and we need to improve the introducing rate. In conclusion, this method is suggested to be potential for delivering the molecules into the skin.