AWWA ACE65563

The objective of this powerpoint presentation was to determine the role of low-level metal-oxide nanoparticles in causing enhanced bacterial resistance to UV irradiation. Background information is presented on potential routes of nanoparticles into water systems, potential interactions with microbes, and effect of Low-Level Nanoparticles. Topics covered include: Model Engineered Nanoparticles; Bacterial Cultures; Experimental Design; Flow Cytometry Analysis; Effect of oxidative stress on cell membrane; Enhanced Resistance to UV Irradiation; Nanoparticle Concentration Effect; Pure E. coli Culture Exhibits an Enhanced Resistance; Growth Delay Effect; Effect of ROS-scavengers; and, Intracellular ROS Measurements. Includes figures.