A microneedle vaccine printer for thermostable COVID-19 mRNA vaccines

Design, assembly and automation of the MNP device

The MVP was designed with the requirement to integrate and automate the necessary functions to convert ingredients necessary for fabricating MNPs into finished MNPs with minimal operator skill level and in a form factor suitable for transport. The resulting design consisted of three main functions: loading, dispensing and drying. These three functions were organized into the MVP (Extended Data Fig. 3f) and were programmed to function simultaneously. All programming related to MVP was implemented in the EPSON RC 7.0 SPEL programming language….