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Microneedles for vaccine delivery: challenges and future perspectives

    Chong In Shin

    Department of Chemical & Biomolecular Engineering, Korea Advanced Institute of Science & Technology (KAIST), Daejeon, Republic of Korea

    ,
    Seong Dong Jeong

    Department of Chemical & Biomolecular Engineering, Korea Advanced Institute of Science & Technology (KAIST), Daejeon, Republic of Korea

    ,
    N Sanoj Rejinold

    Department of Chemical & Biomolecular Engineering, Korea Advanced Institute of Science & Technology (KAIST), Daejeon, Republic of Korea

    &
    Yeu-Chun Kim

    *Author for correspondence:

    E-mail Address: dohnanyi@kaist.ac.kr

    Department of Chemical & Biomolecular Engineering, Korea Advanced Institute of Science & Technology (KAIST), Daejeon, Republic of Korea

    Published Online:https://doi.org/10.4155/tde-2017-0032

    Vaccine delivery to the skin using conventional needles is associated with needle-stick injuries and needle-phobia, which are all major obstacles to vaccination. The development of microneedles has enabled to overcome these limitations and as a result viral, DNA and bacterial vaccines have been studied for the delivery into the skin. Research has shown the superiority of microneedle vaccination over conventional needles in terms of immunogenicity, vaccine stability and dose-sparing abilities in animals and humans. Additional research on improving vaccine stability and delivering vaccines to other areas of the body besides the skin is ongoing as well. Thus, this review paper describes current advances in microneedles as a delivery system for vaccines as well as future perspectives for this research field.

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