Valved microfluidics with Ostemers

chip4 membrane area) achieve switching transition times of approximately 200 ms, comparable to PDMS-based systems. Furthermore, we demonstrate long-term operational stability in ultrathin, flexible devices, as well as sustained performance under exposure to chemically aggressive environments. This Ostemer-based platform effectively addresses the chronic shortcomings of PDMS microfluidics, paving the way toward next-generation microfluidic systems with enhanced integration, durability, and functional diversity.