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This study examined the cytotoxic effects of the γ-Fe 2 O 3 magnetic nanoparticles (GMNs) on a range of tumor cell lines. GMNs, approximately 20 nm in diameter, were prepared using a chemical coprecipitation technique, and coated with two surfactants to obtain a water-based product. A 3-(4, 5-dimethylthiazol-2-yl) −2, 5-diphenyltetrazolium bromide assay revealed the GMNs to be non-toxic...
The geometries, electronic structures, and optical properties of various β-substituted Zn tetraarylporphyrin analogues were studied using density functional theory (DFT). Major differences in geometry and electronic properties were observed as a function of the acceptor moiety. Analogues containing cyanoacrylic acid had longer Zn–N21 bonds, narrower band gaps, and more stabilized energy levels than...
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