Earlier versions of the protocol stated a wrong number in the remark concerning the down-scaling of the full size/volume protocol.
This has been corrected. No changes to the actual protocol have been made.
A big thank you to the community members who highlighted this issue.
https://bomb.bio/wp-content/uploads/2020/04/2.1_BOMB_coating_of_ferrite_MNPs_with_silica_V1.4.pdf