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A self-adhesive microneedle patch with drug loading capability through swelling effect

  • Sharon W. T. Chew
  • , Ankur H. Shah
  • , Mengjia Zheng
  • , Hao Chang
  • , Christian Wiraja
  • , Terry W. J. Steele
  • , Chenjie Xu*
  • *Corresponding author for this work

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

58 Downloads (CityUHK Scholars)

Abstract

Microneedles (MNs) offer a rapid method of transdermal drug delivery through penetration of the stratum corneum. However, commercial translation has been limited by fabrication techniques unique to each drug. Herein, a broadly applicable platform is explored by drug-loading via swelling effect of a hydrogel MN patch. A range of small molecule hydrophilic, hydrophobic, and biomacromolecule therapeutics demonstrate successful loading and burst release from hydrogel MNs fabricated from methacrylated hyaluronic acid (MeHA). The post-fabrication drug loading process allows MeHA MN patches with drug loadings of 10 μg cm−2. Additional post-fabrication processes are explored with dendrimer bioadhesives that increase work of adhesion, ensuring stable fixation on skin, and allow for additional drug loading strategies.
Original languageEnglish
Article numbere10157
JournalBioengineering and Translational Medicine
Volume5
Issue number2
Online published21 Feb 2020
DOIs
Publication statusPublished - May 2020
Externally publishedYes

Research Keywords

  • bioadhesive
  • dendrimer
  • microneedles
  • self-adhesive
  • transdermal drug delivery

Publisher's Copyright Statement

  • This full text is made available under CC-BY 4.0. https://creativecommons.org/licenses/by/4.0/

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