Nano copper powder contains copper-based particles with size ranging from 1 nm to 1,000 nm. Due to its unique characteristics (superior electrical conductivities, thermal conductivities, high specific surface area, and bulk density), it is used in highly specialized applications. Nano copper exhibit unique characteristics, including catalytic and antimicrobial activity, which are rarely observed in micro grade copper. Nano copper also shows superior electrical conductivity, thermal conductivity, high specific surface area, and bulk density as compared with commercial copper.