A folding tray assembly includes a support member and a tray member. A linear filter, such as a moving average window filter, is convolved with the correlation signal to generate a convolution signal. By inserting a protease recognition site, such as cathepsin G, that is recognized by a gut protease of a target insect in at least one position of a Cry3A toxin a modified Cry3A toxin having significantly greater toxicity, particularly to western and northern corn rootworm is designed. The assembly includes an expander tool, a hydraulically actuated swivel, and a running tool mechanically connected to the liner. Additionally provided is a surface treatment procedure that effectively bonds it and other alkoxysilanes via homogeneous and heterogeneous amine catalysis onto metal oxide surfaces.