Maleic anhydride (MA) is an important intermediate in a large number of chemtcal processes. World capacity is of the order of 700,000 tonnes/yr, and its major use is in the manufacture of unstaurated polyester resins, which accounts for 60–70% of production [1,2]. Other uses are summarized in Table

Cytochrome c (horse heart) has been adsorbed onto a range of mesoporous silicate materials with the extent of adsorption dependent on the silicate pore size; adsorption and activity profiles of the adsorbed protein are reported.