On the 10th of October 2018 Mara Leone of Leiden University in coöperation with uPRAX has published the academic research;

“Universal Applicator for Digitally-Controlled Pressing Force and Impact Velocity Insertion of Microneedles into Skin”

The research has been conducted at Leiden University and in the Tyndall National Institute of University College Cork in Ireland. In this research the APA-V1 is used to determine the optimal insertion velocity and optimal insertion pressing force of 5 different microneedle technologies. Due to the different materials and geometries of the needles they require different mechanical parameters for their insertion. In this research the effects of variance in velocity or pressing force is demonstrated and therefor the importance of making this a consistent factor in microneedle application.

https://www.mdpi.com/1999-4923/10/4/211#cite