Journal
MATERIALS LETTERS
Volume 174, Issue -, Pages 61-65Publisher
ELSEVIER
DOI: 10.1016/j.matlet.2016.03.069
Keywords
Platinum nanoparticles; Antifungal; Plant pathogen; Optimization; FTIR; TEM
Funding
- Korea Ministry of Environment [2014000140003]
- National Research Foundation of Korea (NRF) - government (MEST) [2011-0020202]
- Korea Environmental Industry & Technology Institute (KEITI) [ARQ201403144003] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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Green synthesis of platinum nanoparticles (PtNPs) using Prunus x yedoensis tree gum extract was studied. Color changes, ultraviolet-visible spectra (277 nm), X-ray diffraction peaks (2 theta=38.17, 45.54, and 68.12), and Fourier transform infrared spectroscopy confirmed the presence of PtNPs. Transmission electron microscopy shows that PtNPs are mostly spherical and oval in shape, with an average particle size of 10-50 nm. Chemical constituents present in the gum extract may be responsible for the reduction of Pt ion. Among the five phytopathogens tested, the two pathogens Colletotrichum acutatum and Cladosporium fulvum show 15 mm and 18 mm zones of inhibition against synthesized PtNPs at 4 and 8 mu g/well, respectively. (C) 2016 Elsevier B.V. All rights reserved.
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