In last few decades, new challenges have emerged in the control of waterborne and foodborne biological agents, and surface associated public health microorganisms. A multitude of industries (water, food etc.) serving human population can potentially suffer significant economic loses dues to these biological agents / microorganisms. Some of such emerging challenges include: spread of invasive mussels species, frequent algal blooms in fresh water sources and in water treatment basins, and emergence of antibiotics resistant bacterial strains of public health significance. Oxidizing chemical agents have been traditional used for controlling waterborne and foodborne pathogens and invasive biological agents such as mussels / snails and algae. However, use of oxidizing chemical comes with their caveats such as disinfection by-products. Other biocides or antibiotics have been associated with emergence of resistant isolates. There is a need for new type of chemical agent for controlling broad range of biological agents and pathogens. Especially, non-oxidizing biocide would be the most preferred for use on the natural and man-made water infrastructures.
Water and Environmental Technology Center, Arizona State University