👉 The thru fluid, also known as the transducer fluid or oil, is a critical component in many fluidic systems, including those used in microfluidics and lab-on-a-chip devices. It serves as the medium through which fluids, gases, or other substances are transported and manipulated within the system. Typically composed of oils or specialized fluids with low viscosity, thru fluid ensures smooth and efficient flow, minimizing resistance and energy loss. It also plays a vital role in heat transfer, chemical mixing, and maintaining the structural integrity of microchannels by preventing clogging or damage. The properties of thru fluid, such as its viscosity, thermal conductivity, and chemical compatibility, are carefully selected to optimize the performance of the overall system.