“…platinum, palladium, nickel). In another scientific area, microreactors with enzymes (natural catalysts involved in most of the biological reactions) grafted on their surface would be essential tools to perform biological reactions, such as proteins digestion [11][12][13] without loosing the enzyme in the experimental medium or having a reaction of enzyme auto-digestion. Enzymatic reactions have already been performed in microreactor with enzymes grafted on porous silicon matrixes to enhance the surface activity [14].…”