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Öğe Heavy metal biosorption characteristics of the submerged aquatic plant (Nasturtium officinale)(Chemical Publishing Co., 2010) Okumus V.; Basaran D.; Onay A.In the present investigation an aquatic plant, Nasturtium officinale was examined for its biosorption ability of heavy metal ions. The results obtained from biosorption experiments were used to understand the driving forces that govern the interaction between metal ions and biosorbent. The experimental biosorption data were fitted to the Scatchard plot, Langmiur and Freundlich isotherms. According to the parameters of the Langmiur isotherm, the maximum biosorption capacities of Cd 2+ and Co 2+ were 0.56 and 0.49 mg/g, respectively. In view of Freundlich isotherms, the maximum biosorption capacities of Cd 2+ and Co 2+ were 2.23 mg/g for both of metal ions.Öğe Nanotechnology in plant sciences: Phytonanotechnology(Nova Science Publishers, Inc., 2020) Onay A.; Jahan I.; Kılınç F.M.Phytonanotechnology deals with the promising utilization and diverse prospects of nanotechnology in plant sciences, plant cultivation and food production systems. This new branch of science has the potential to accelerate the conventional plant cultivation practices and food production processes by reducing the application of agrochemicals (e.g., chemical fertilizers, herbicides, pesticides, and fungicides), by monitoring target-specific release of biological compounds (e.g., proteins, nucleotides and other activators), by distributing the essential micronutrients, i.e., Cu, Br, Fe, Mb and Zn etc. at nano level without effecting the regular metabolism in the plant system, by integrating plant viral disease detection kits into the plant system (e.g., early detection of viral diseases) as well as by increasing the production of high-value secondary metabolites. Delivery of nanoparticle-mediated materials into the plants, and the development of advanced biosensors for precise farming is only possible with “nanoparticles” or “magic bullets.” Therefore, the aim of this study is to review the nanostructured materials (NSMs), characterization of nanoparticles (NPs), different approaches for NP synthesis, plant nanoparticle interactions, effects of NPs especially as growth promoter on plant production system, the potential applications of phytonanotechnology and specifically the effects of NPs in plant tissue cultures. The benefits of phytonanotechnology to the productivity and quality of plant products and their potential uses are also discussed. © 2020 Nova Science Publishers, Inc. All rights reserved.Öğe Simultaneous removal of indomethacine, papaverine and allopurinol from aqueous solution by using submerged aquatic plant Nasturtium officinale(Chemical Publishing Co., 2010) Okumus V.; Oral E.; Basaran D.; Onay A.Simultaneous removal of indomethacine, papaverine and allopurinol from aqueous solution by using submerged aquatic plant Nasturtium officinale biomass in high performance thin layer chromatography (HPTLC) was studied. Optimum biosorption conditions were determined as a function of contact time, pH, removal capacity of the amount of biomass and initial dry concentration. Experiments were performed in batch conditions. Concentrations of the drugs in the remaining solutions were simultaneously analyzed by HPTLC. Langmuir and Freundlich models were applied to describe the biosorption isotherm of the drugs by aquatic plant Nasturtium officinale biomass. According to the results, optimum parameters were found as 2.0 g biomass, pH:5.0 and 60 min contact time. Obtained from plots of Langmuir and Freundlich adsorption models, the highest drug uptakes were calculated from Langmuir isotherm and found to be 43.10, 39.68 and 38.61 mg/g for indomethacine, papaverine and allopurinol, respectively.
