A week later, three candidate molecules, labeled X-1, X-2, and X-3, were delivered to the laboratory in the form of freeze-dried powders. They were stored quietly in an ultra-low temperature freezer, like hibernating spirits, yet they carried the hopes of the entire team.
The verification work commenced immediately in full swing.
First, Wang Chao's sensors were responsible for the initial screening. The X-1, X-2, and X-3 molecules were dissolved and injected into the microfluidic chip. The sensors captured their binding curves, kinetic parameters, and dissociation constants (KD values) with immobilized target proteins. The results were exciting: all three molecules exhibited strong binding abilities, especially X-2, whose KD value reached the femtomolar (fM) level, an extraordinarily excellent figure, indicating an incredibly strong binding with the targets.
