Some of the mRNA vaccines being developed include the use of a material called a hydrogel, which might help disperse the vaccine slowly into our cells.
Bioengineers have used similar hydrogels for many years in different ways. For instance, they've used them to help stem cells survive after being put inside our bodies.
Because of this, some people believe that hydrogels are needed for electronic implants, which can connect to the internet.
The Pfizer and Moderna mRNA vaccines do not use hydrogels as a component.
With new COVID-19 vaccine developments every day, it’s normal to have questions or concerns, and possibly feel hesitant about getting a vaccine. That's why we're providing accurate, evidence-based answers to questions about COVID-19 vaccines.