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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VIT Univ, Sch Biosci & Technol, Vellore, Tamil Nadu, IndiaVIT Univ, Sch Biosci & Technol, Vellore, Tamil Nadu, India
Gopal, Jannu Vinay
Thenmozhi, Mohankumar
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VIT Univ, Sch Biosci & Technol, Vellore, Tamil Nadu, IndiaVIT Univ, Sch Biosci & Technol, Vellore, Tamil Nadu, India
Thenmozhi, Mohankumar
Kannabiran, Krishnan
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VIT Univ, Sch Biosci & Technol, Vellore, Tamil Nadu, IndiaVIT Univ, Sch Biosci & Technol, Vellore, Tamil Nadu, India
Kannabiran, Krishnan
Rajakumar, Govindasamy
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C Abdul Hakeem Coll, Post Grad & Res Dept Zool, Unit Nanotechnol & Bioact Nat Prod, Vellore 632509, Tamil Nadu, IndiaVIT Univ, Sch Biosci & Technol, Vellore, Tamil Nadu, India
Rajakumar, Govindasamy
Velayutham, Kanayairam
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C Abdul Hakeem Coll, Post Grad & Res Dept Zool, Unit Nanotechnol & Bioact Nat Prod, Vellore 632509, Tamil Nadu, IndiaVIT Univ, Sch Biosci & Technol, Vellore, Tamil Nadu, India
Velayutham, Kanayairam
Rahuman, Abdul Abdul
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C Abdul Hakeem Coll, Post Grad & Res Dept Zool, Unit Nanotechnol & Bioact Nat Prod, Vellore 632509, Tamil Nadu, IndiaVIT Univ, Sch Biosci & Technol, Vellore, Tamil Nadu, India