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Protein Encapsulation in Polymeric Microneedles by Photolithography

  • Jaspreet Singh Kochhar
  • Justin J. Y. Tan
  • Yee Chin Kwang
  • Lifeng Kang
Chapter

Abstract

Transdermal delivery of protein drugs is a useful alternative to oral and parenteral routes because it circumvents the problems associated with these conventional modes of drug delivery. One such strategy to overcome the natural skin barrier involves encapsulating them inside a polymeric core, offering the advantage of a higher drug loading in one convenient formulation rather than having multiple ones. However, previously reported fabrication approaches required high temperatures, vacuum, or prolonged exposure to ultraviolet light which may be potentially harmful to protein drugs. In this chapter, we described a novel photolithography-based method utilizing low exposure to ultraviolet light developed in the previous chapter to encapsulate bovine serum albumin (BSA) – a model protein for our study. As a proof of concept, this simple photolithographic technique has shown uniform drug distribution across the microneedle arrays, maintained protein stability and shown greater permeation of BSA through the skin as compared to passive diffusion, thereby demonstrating its potential to be used to encapsulate other protein drugs in the future.

Keywords

Protein encapsulation Photolithography Bovine serum albumin BSA 

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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  • Jaspreet Singh Kochhar
    • 1
  • Justin J. Y. Tan
    • 2
  • Yee Chin Kwang
    • 3
  • Lifeng Kang
    • 3
  1. 1.Procter & GambleSingaporeSingapore
  2. 2.Department of PharmacyNational University of SingaporeSingaporeSingapore
  3. 3.School of PharmacyUniversity of SydneySydneyAustralia

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