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Cetin, Demet/0000-0003-1186-4229; SULUDERE, ZEKIYE/0000-0002-1207-5814 WOS: 000393956500001 PubMed: 27739130 Transmission electron microscopy (TEM) is a very useful and commonly used microscopy technique, used especially for the characterization of nanoparticles. However, the identification of the magnetic nanoparticle could be thought problematic in TEM analysis, due to the fact that the magnetic nanoparticles are usually form aggregates on the TEM grid to form bigger particles generating higher stability. This prevents to see exact shape and size of each nanoparticle. In order to overcome this problem, a simple process for the formation of well-dispersed nanoparticles was conducted, by covering chitosan film on the unmodified copper grid, it was said to result in aggregation-free TEM images. It is also important to fix the magnetic nanoparticles on the TEM grids, due to possible contamination of TEM filament which is operated under high vacuum conditions. The chitosan film matrix also helps to protect the TEM filament from contact with magnetic nanoparticles during the imaging process. The proposed procedure offers a quick method to fix the nanoparticles in a conventional copper TEM grid and chitosan matrix prevents agglomeration of nanoparticles, and thus getting TEM images showing well-dispersed individual nanoparticles. Scientific and Technological Research Council of Turkey (TUBITAK)Turkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [CA15114-114Z793] The work was supported by The Scientific and Technological Research Council of Turkey (TUBITAK) with the project number Cost CA15114-114Z793.

WOS: 000302661200010 The cationic polymerization of cis, trans-2,5-dihydro-2,5-dimethoxy furan (DHMF) was studied in the presence of HClO4, in acetonitrile. Different reaction parameters were investigated such as initiator concentration and temperature with duration. Obtained polymers were soluble in dimethylsulfoxide (DMSO) and dimethylformamide (DMF) and the M-n value was calculated as 2700 g/mol by cryoscopy. The FT-IR and H-1-NMR results indicate that the polymerization proceeds via ring opening. Thermal properties were studied by DSC and TGA. Kirikkale UniversityKirikkale University The authors are grateful to the Kirikkale University Research Fund for its support of this work.

The asymptotic iteration method (AIM) is used to obtain both special exact solutions and general approximate solutions for a Hydrogen-like atom confined in a spherical box of arbitrary radius R. Critical box radii, at which states are no longer bound, are also calculated. The results are compared with those in the literature., Comment: 10 pages

WOS: 000322193400001, PubMed ID: 24499578, The concentrations of heavy metals (Ag, Cd, Co, Cu, Ni, Pb, Zn) were analyzed in muscle, skin and liver of Anatolian Khramulya, Capoeta tinca (Heckel, 1843) from Camligoze Dam Lake located at Central Anatolian region of Turkey. The heavy metal analysis of samples was carried out by using a flame atomic absorption spectrophotometer. Ag, Cd, Co, Pb and Zn were found in all of the examined tissues. Cu and Ni were not determined in all tissues studied. The mean concentrations of heavy metals in all of the examined tissues of Capoeta tinca were as follows: Ag: 0.057 +/- 0.038-0.120 +/- 0.051, Cd: 0.020 +/- 0.004-1.451 +/- 0.879, Co: 0.127 +/- 0.067-0.205 +/- 0.086, Pb: 1.939 +/- 0.477-2.604 +/- 0.393 and Zn: 0.056 +/- 0.014 0.530 +/- 0.129 mu g/g in Camligoze Dam Lake. According to international criterias and Turkish regulation, heavy metal concentrations especially Cd and Pb in Camligoze Dam Lake were found above the permissible levels for examined tissues of Capoeta tinca. Furthermore, frequent consumption of contaminated fish is able to offer a serious public health risk. Therefore, the concentrations of metals accumulated in the fish, which are commonly consumed by public, should be monitored periodically in Camligoze Dam Lake.

WOS: 000272272000016, In this paper, we have studied a new bounded Coulombic potential for the Schrodinger equation with the asymptotic iteration method (AIM). We have calculated energy eigenvalues for different potential parameters.