avidins造句

• :A concern I would have with double-headed biotin is that a ) if the linker between the two biotins is really short, then I don't know how likely it would be for a free biotin chained to a huge ( I assume ) magnetic bead to be able to get access to another one, and b ) if the linker is long, then I don't know if the two biotins can access multiple avidins bound to the same magnetic bead.