Yes, tungsten needles can be used for high-precision dispensing of liquids in microfluidic devices. Tungsten needles are known for their high strength and stiffness, which makes them suitable for precise and accurate liquid dispensing in microfluidic applications. Additionally, tungsten has a low coefficient of thermal expansion, high thermal conductivity, and high melting point, making it an ideal material for use in high-temperature environments. Tungsten needles can be fabricated with a range of tip sizes and shapes to meet specific dispensing needs, and their sharp tips can easily penetrate thin films and small apertures for controlled liquid dispensing.
