SJH Projects, a small British company, has developed a so-called "stone sponge" material that, fixed to a vehicle's undercarriage, partially absorbs the blast.

Case Western Reserve University has developed another nanotechnology "sponge" material that could be used in response to such disasters.

Ultracapacitors also have two metal plates, but they are coated with a sponge-like, porous material known as activated carbon.