Lead sulfide nanoparticles were hydrothermally synthesized
and their size was diminished via exposure to ultrasound
waves. Both h-PbS and h,us-PbS nanoparticles of
different sizes were characterized using powder X-ray
diffraction, TEM microscopy and surface area measurements.
The nanoparticles limited the growth of Aspergillus
pathogens and light microscopy proved severe morphological
abnormalities in the fungal vesicles, conidiophores and
mycelia in response to the nanoparticles.