Yes, tungsten needles can be used for microscale fluid mixing. Tungsten needles can be used as microstirrers or micro-agitators to mix fluids in microfluidic devices. The small size of tungsten needles makes them ideal for microfluidic applications where precise mixing is required. In addition, tungsten is a durable and corrosion-resistant material, which makes it suitable for long-term use in microfluidic systems. Tungsten needles can also be coated with various materials to modify their surface properties, such as to increase their hydrophilicity or hydrophobicity, which can affect their mixing performance. Overall, tungsten needles are a useful tool for microscale fluid mixing applications.
