DESCRIZIONE
The present invention provides a composition, and a process for preparing and method for using such a composition. The composition comprises (i) a surface coating material; and (ii) (ii) a cross-linked enzyme crystal or cross-linked enzyme aggregate wherein the enzyme is cross-linked with a multifunctional cross-linking agent and wherein the cross-linked enzyme crystal or cross-linked enzyme aggregate has an antifouling activity or generates an antifouling compound. Suitably the composition may be used to inhibit biofilm formation.