The Effects of Copper-Carbon Core-Shell Nanoparticles On Three Blue-Stain Fungi.

摘要

Over the past few years, nanomaterials have opened a tremendous interest because they offer an opportunity to deliver unprecedented material performance. Effects of Copper-Carbon Core-Shell Nanoparticles (CCCNPs) on the growth of different blue-stain fungi infecting forest trees will be examined. A series of CCCNPs treatments with pure copper concentrations ranging from 0 parts per million (ppm) to 5,000ppm were incorporated into malt extract agar (MEA) media (3.5% MEA to Water). For the growth assay studies, three blue-stain fungi Ophiostoma minus, Leptographium huntii and Grosmannia huntii were inoculated onto the media in Petri-dishes with four replicates per concentration per species. The mycelia growth was measured daily for at least 30 days depending on species. The fungal colony was photographed every other day. Mycelia growth measurements were compared and analyzed statistically. The in-vivo tests show that CCCNPs treatments with pure copper concentrations at 1,223ppm and above strongly inhibited Ophiostoma minus growth, while CCCNPs treatments with pure copper concentrations at 1,000ppm and above strongly inhibited the growth of both Leptographium huntii and Grosmannia huntii. This research indicates that the proper formulation of CCCNPs has a potential to control blue-stain fungi, thus, helping to improve tree and forest health.