02.10.09
A package comprising a paper product was recently granted a patent. A packaging material encloses the paper product and defines a headspace there between. Metal modified nanoparticles have an effective particle diameter of less than about 500 nanometers. The nanoparticles are formed from silica, alumina or a combination thereof. The metal modified nanoparticles are configured to neutralize gaseous or odorous compounds within the headspace.