Embodiments include a colloidal mixture comprising a liquid component and a solid component dispersed in the liquid component. The solid component comprises a plurality of fine-solid (FS) particles, and a plurality of phage particles having binding domains, or binding portions thereof, selected to bind to the plurality of FS particles. Embodiments also include methods or making colloids, method for improving the colloidal stability of a mixture, methods for inhibiting the growth of unwanted organisms, storage and shipping systems, and bio-additives.
