Yes, tungsten needles can be used for nanoscale electrochemical measurements. Tungsten needles can be used as microelectrodes to perform various types of electrochemical measurements, including amperometry, potentiometry, and voltammetry. The small size of tungsten needles makes them ideal for measuring electrochemical reactions in small volumes, and they can be used to measure various types of samples, including biological and environmental samples. Additionally, tungsten needles can be modified with different coatings or functional groups to enhance their electrochemical properties or selectivity.
