Short ultraviolet/ozone (UVO) treatment optimizes cell adhesion on plastic culture substrates by selectively enriching adhesion proteins, as reported by researchers from Institute of Science Tokyo. Their latest study explains the underlying reason why there is an optimal UVO treatment time, with the optimal surface condition arising when the ability to selectively adsorb and immobilize key adhesion proteins is maximized. This study paves the way for the design of polymeric materials used in medical research.