Designing a unique feedback mechanism for hydrogel-forming microneedle array patches: a concept study

Research output: Contribution to journalArticlepeer-review

8 Downloads (Pure)

Abstract

Although microneedle array patch (MAP) technology is reaching ever closer to regulatory approval, it remains imperative that approaches to further improve patient acceptance are still explored. Addressing this perception, a water-filled reservoir was incorporated into a hydrogel-forming MAP system to provide a novel feedback mechanism. To confirm successful MAP skin insertion, the end user would both hear and feel the rupture of the water-filled reservoir. Interestingly, a 50-µL water-filled reservoir ruptured at 30.27 ± 0.39 N, which has previously been shown as the mean application force for MN insertion in human subjects following appropriate instruction. Importantly, no significant difference in % cumulative permeation of FITC-dextran 10 kDa and fluorescein sodium after 24 h was observed between a 50-µL reservoir and the current method of application that has been successfully used in both in vitro and in vivo studies (p > 0.05). Therefore, as drug delivery was not affected, this proof-of-concept study has shown that a water-filled reservoir feedback mechanism has the potential to serve as a viable tool for consistent MAP skin insertion.

Original languageEnglish
JournalDrug Delivery and Translational Research
Early online date31 Jul 2021
DOIs
Publication statusEarly online date - 31 Jul 2021

Bibliographical note

© 2021. The Author(s).

Fingerprint

Dive into the research topics of 'Designing a unique feedback mechanism for hydrogel-forming microneedle array patches: a concept study'. Together they form a unique fingerprint.

Cite this