Actually, because of the way the rules are set up, it does have synergy with all of sealing.
You start by raising MedKnow to 10. This decreases the TN of a bioseal you want to make (let's say a paper tag where you tie it around someone's wrist and it displays their blood pressure).
Then having researched that bioseal, all seals related to that bioseal also have their TNs reduced (for example, a seal that measures the steam pressure in a primitive steam engine that we try to build).
It's indirect, but you'll find that biological systems do a lot of things that we might want to research and then convert to nonbiological seals. And having lower TNs on bioseals makes that much easier.