Journal
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY
Volume 147, Issue -, Pages 63-68Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jphotobiol.2015.03.008
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Funding
- National Research Foundation of Korea (NRF) South Korea - government (MEST) [2011-0020202]
- Korea Ministry of Environment as Eco-Innovation project [2014000140003]
- Korea Environmental Industry & Technology Institute (KEITI) [ARQ201403144002] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- National Research Foundation of Korea [2012R1A6A3A04038530, 2011-0020202] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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This study describes an eco-friendly, rapid method for green synthesis of silver nanoparticles (Ag NPs) from an aqueous solution of silver nitrate using Pinus densiflora for. multicaulis Uyeki young cone extract in a single-pot process. Color changes, ultraviolet-visible spectra (444.5 nm), X-ray diffraction peaks (20 = 39.68, 46.92, 68.12, and 79.10), and Fourier transform infrared spectroscopy (FT-IR) confirmed the presence of Ag NPs and phytochemicals. Transmission electron microscopy showed that the nanopartides were mostly oval in shape, with a few triangular-shaped particles. Average particle size was 3080 nm. Phytochemicals present in the young pine cone extract were likely responsible for the reduction of Ag+ ions. The synthesized Ag NPs (40 mu g) had a 7 mm larger zone of inhibition against the skin pathogen Brevibacterium linens than commercial Ag NPs, Propionibacterium acnes (14 mm), Bacillus cereus (9 mm) and Staphylococcus epiderrnidis (10 mm). (C) 2015 Elsevier B.V. All rights reserved.
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