Yes, tungsten needles can be used for microscale electrospinning of fibers. Electrospinning is a technique used to produce fibers with diameters in the range of nanometers to micrometers by using an electric field to draw a polymer solution or melt through a spinneret. Tungsten needles are a popular choice for spinnerets due to their high melting point and good electrical conductivity. The small diameter of tungsten needles also allows for precise control over the diameter of the electrospun fibers. Tungsten needles can be coated with a thin layer of polymer or other materials to prevent the electrospun fibers from sticking to the needle surface.
