Smart Mushroom-Inspired Imprintable and Lightly Detachable (MILD) Microneedle Pattern
the mushroom-like structure
allows the MILD system to be easily pressed
Into the skin and detach from the patch base
Acting as a “tattoo” to record the vaccine counts in situ without any storage equipment
Offering quick accessibility and effortless readout
Saves great deals of valuable time
Saves energy for both patients and health professionals
After loading, SARS-CoV-2 virus-based
vaccines are inactivated
MILD system induces high level of antibody against SARS-CoV-2 receptor binding domain (RBD) in vivo without eliciting systemic toxicity and local damage
Overall, this smart delivery platform serves as a promising carrier to improve COVID-19 vaccination efficacy through its dual capabilities of vaccine delivery and in situ data storage, thus exhibiting great potential to aid in containing COVID-19 pandemic or a resurge.