1) Become immaterial 2) Dematerialise 3) Disappear 4) Go away 5) Vanish 1) Dematerialise 2) Vanish 
• (v. t.) To deprive of material or physical qualities or characteristics.
De`ma·te'ri·al·ize transitive verb To deprive of material or physical qualities or characteristics. « Dematerializing matter by stripping it of everything which . . . has distinguished matter.» Milman. 
[v] - become immaterial
dematerialize, dematerialise (British); dematerialization 1. To disappear, or to cause something to disappear. 2. To deprive of or to lose apparent physical substance; to make or become immaterial.
dematerialise verb become immaterial; disappear
to deprive of or lose material character.