Facile biogenic selenium nanoparticle synthesis,characterization and effects on oxidative stress generated by UV in microalgae |
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| Institution: | 1. Polatlı Science and Literature Faculty, Nanosan Laboratory, Ankara Hacı Bayram Veli University, Ankara 06900, Turkey;2. Advanced Technologies Application and Research Center, Hacettepe University, Ankara 06900, Turkey;3. Science and Literature Faculty, Biology Department, Marmara University, Istanbul 34722, Turkey;1. Department of Civil and Environmental Engineering, Universidad de los Andes, Carrera 1Este #19A-40, Bogota, Colombia;2. Department of Chemical Engineering, University of the Basque Country, Barrio Sarriena s/n, Leioa, Spain;1. School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China;2. Department of Chemical & Biochemical Engineering, Western University, London, Ontario N6A 3K7, Canada;3. Institute of Shaoxing, Tianjin University, Zhejiang 312300, China;1. School of Environmental Science and Engineering, Donghua University, Shanghai 201620, China;2. School of Physics and Electronic-Electrical Engineering, Ningxia University, Yinchuan 750021, China;1. School of Civil Engineering, Chongqing University, Chongqing 400045, China;2. School of Transportation, Southeast University, Nanjing 210096, China |
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| Abstract: | Since nanoparticle synthesis via chemical and physical methods is expensive and includes hazardous chemicals, biosynthesis has emerged as an environmentally friendly, clean and viable alternative. The present study reports the synthesis of selenium nanoparticles (SeNPs) using Citricoccus sp.. For the production of SeNPs, the influence of some parameters (time, pH, temperature and stirring rate) was studied. Optimum synthesis conditions were found as pH 8, 24 h reaction time, 37 °C and 150 rpm. Synthesized particles were spherical and were 104.46 ± 50.82 nm with a zeta potential of –20.43 ± 0.41 mV. Afterward, the effects of the nanoparticles on oxidative stress biomarkers, hydrogen peroxide (H2O2), malondialdehyde (MDA), chlorophyll (a + b) and growth rate, subsequent to UV-C irradiation on Chlorella vulgaris were investigated. In culture contains nanoparticle and UV-C exposed, the amount of H2O2 and MDA decreased on the 1st, 3rd and 7th days following UV exposure compared to UV-applied group, while optical density and cell density increased, the amount of chlorophyll (a + b) changes were statistically similar. Consequently, it has been shown that the synthesized SeNPs alleviated the adverse effects of UV stress in microalgae. |
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| Keywords: | Green synthesis Nanoparticles Oxidative stress |
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