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Synthesis and evaluation of radiolabeled, folic acid-PEG conjugated, amino silane coated magnetic nanoparticles in tumor bearing Balb/C mice

superparamagnetic nanocarriers with folate-mediated and pH-responsive targeting properties for anticancer drug delivery. Biomaterials , 32 , 185–194. DOI: 10.1016/j.biomaterials.2010.09.077. 4. Maeda, H., & Matsumura, Y. (1989). Tumouritropic and lymphotropic principles of macromolecular drugs. Crit. Rev. Ther. Drug Carr. System , 6 , 193–210. 5. Ohtsuka, N., Konno, T., Miyauchi, Y., & Maeda, H. (1987). Anticancer effects of arterial administration of the anticancer agent SMANCS with lipiodol on metastatic lymph nodes. Cancer , 59 , 1560–1565. DOI: 10

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Chemical reduction of nitrate by zerovalent iron nanoparticles adsorbed radiation-grafted copolymer matrix

Abstract

This research specifically focused on the development of a novel methodology to reduce excess nitrate in drinking water utilizing zerovalent iron nanoparticles (nZVI)-stabilized radiation-grafted copolymer matrix. nZVI was synthesized by borohydrate reduction of FeCl3 and stabilized on acrylic acid (AAc)-grafted non-woven polyethylene/polypropylene (NWPE/PP-g-AAc) copolymer matrix, which was grafted using gamma radiation. The use of nZVI for environmental applications is challenging because of the formation of an oxide layer rapidly in the presence of oxygen. Therefore, radiation-grafted NWPE/PP synthetic fabric was used as the functional carrier to anchor nZVI and enhance its spreading and stability. The chemical reduction of nitrate by nZVI-adsorbed NWPE/PP-g-AAc (nZVI-Ads-NWP) fabric was examined in batch experiments at different pH values. At low pH values, the protective layers on nZVI particles can be readily dissolved, exposing the pure iron particles for efficient chemical reduction of nitrate. After about 24 h, at pH 3, almost 96% of nitrate was degraded, suggesting that this reduction process is an acid-driven, surface-mediated process. The nZVI-water interface has been characterized by the 1-pK Basic Stern Model (BSM). An Eley-Rideal like mechanism well described the nitrate reduction kinetics. In accordance with green technology, the newly synthesized nZVI-Ads-NWP has great potential for improving nitrate reduction processes required for the drinking water industry.

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Evaluation of circulating endothelial cells in the rat after acute and fractionated whole-body gamma irradiation

radiation therapy: radiobiology meets molecular pathology. Nat. Rev. Cancer, 6(9), 702-713. DOI: 10.1038/nrc1950. 7. Sugihara, T., Hattori, Y., Yamamoto, Y., Qi, F., Ichikawa, R., Sato, A., Liu, M. Y., Abe, K., & Kanno, M. (1999). Preferential impairment of nitric oxide- -mediated endothelium-dependent relaxation in human cervical arteries after irradiation. Circulation, 100(6), 635-641. DOI: 10.1161/01.CIR.100.6.635. 8. On, Y. K., Kim, H. S., Kim, S. Y., Chae, I. H., Oh, B. H., Lee, M. M., Park, Y. B., Choi, Y. S., & Chung, M. H. (2001

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Magnetic resonance study of co-modified (Co,N)-TiO2 nanocomposites

, P. K., Dhara, S., Imakita, K., & Fuji, M. (2014). Oxygen vacancy-mediated enhanced ferromagnetism in undoped and Fe-doped TiO 2 nanoribbons. J. Phys. D-Appl. Phys ., 47 , 235304(14pp.). 18. Dolat, D., Mozia, S., Ohtani, B., & Morawski, A. W. (2013). Nitrogen, iron-single modified (N-TiO 2 , Fe-TiO 2 ) and co-modified (Fe,N-TiO 2 ) rutile titanium dioxide as visible-light active photocatalysts. Chem. Eng. J ., 225 , 358–364. 19. Guskos, N., Glenis, S., Zolnierkiewicz, G., Guskos, A., Typek, J., Berczynski, P., Dolat, D., Grzmil, B., Ohtani, B

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