text: For an isolated spherical solid particle of diameter  in its own liquid, the Gibbs–Thomson equation for the structural melting point depression can be written:
  where:	
  * T = bulk melting temperature
  * σ = solid–liquid interface energy (per unit area)
  * H = bulk enthalpy of fusion (per gram of material)
  * ρ = density of solid
  * r = radius of the nanoparticle