
A compact, inexpensive optical device that detects microbial contamination in clean aqueous solutions using Mie scattering theory. Laser diodes and photodetectors housed in a retrofitted foam case deliver results at unde...
Visible-light-active doped TiO2 photocatalysts that form water-based sprays for home surface disinfection. By incorporating non-toxic dopants, these nanoparticles extend light absorption into the visible spectrum and rem...