A review on microneedle mediated transdermal drug delivery
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As a very good replacement of hypodermic needle micro needle can be used. Micro needles are very small needles as its name suggest. We all know that skin has three layers. Micro needles basically skip through the upper layer of the skin. Generally four types of micro needle are present. These are solid microneedle, hollow microneedle, coated microneedle and dissolvable microneedle. They can deliver drugs through different mechanisms. Many types of vaccine have successfully been coated in to micro needle. Among all some of their name can really be mentioned like influenza, insulin anthrax, hepatitis c. Finally it can be concluded that using micro needle has many benefits over the conventional hypodermic needles. The future aim of this technology is to coat more vaccine on micro needle and the delivery of drugs to the eyes by micro needle.