Mamuna Mukhtar Based on the application, there are a huge range of cationic agents which can be used for the encapsulation of mRNA (and other bioactive material).

You can check with manufacturers / suppliers such as:

Avanti Polar Lipids;

Lipoid (https://lipoid.com/en/product-finder/);

Invitrogen;

...

Also check the Japanese company:

https://www.nipponseika.co.jp/en/phospholipid/detail-2.html