RE:A Nanosilica-based Covid-19 Vaccine On The Horizon?Highlighting in more detail....for the most effective nano silica-based vaccine, not only does surface area & biocompatibility play major roles, the ideal size is "sub-100 nm" (mesoporous)....where have I heard that before ; ). This smaller size allows for drainage to lymph nodes & the subsequent uptake by dendritic cells, a key link in triggering our immune response. I can hear Bernard giggling in the distance...going to be a giddy year. GLTA.