In conjunction with a tertiary amine coinitiator, eosin, a photoreducible dye, has been shown to successfully circumvent oxygen inhibition in radical photopolymerization reactions. However, the role of O2 in the initiation and polymerization processes remains inconclusive. Here, we employ a UV-Vis/FT-NIR analytical tool for real-time, simultaneous monitoring of chromophore and monomer reactive ...

BACKGROUND Though elastic fibers are as important as collagen fibers in interpretation of the histopathologic findings, it is impossible to observe them on the hematoxylin & eosin (H&E) stained specimen. OBJECTIVE Characterizing eosin fluorescence emitted by elastic fibers in H&E stained specimens. METHODS Normal skin tissue sections were stained in 4 different ways (unstained, hematoxylin ...

Inclusion body hepatitis (IBH) has been reported in many countries in the world. The IBH or similar cases characterized by hepatitis and presence of intra-nuclear inclusion bodies in hepatocytes have not been reported in broiler chickens in Iran. This is the first report on outbreak of adenovirus-like inclusion body hepatitis in Iran. On October 2012, an onset of high acute mortality in a flock...

4',5'-Dibromo-2',7'-dinitrofluorescein, a red dye commonly referred to as eosin B, inhibits Toxoplasma gondii in both enzymatic and cell culture studies with a 50% inhibitory concentration (IC(50)) of 180 microM. As a non-active-site inhibitor of the bifunctional T. gondii dihydrofolate reductase-thymidylate synthase (DHFR-TS), eosin B offers a novel mechanism for inhibition of the parasitic fo...

BACKGROUND/OBJECTIVES Upon irradiation with visible light, the photosensitizer-peptide conjugate eosin-(KLAKLAK)2 kills a broad spectrum of bacteria without damaging human cells. Eosin-(KLAKLAK)2 therefore represents an interesting lead compound for the treatment of local infection by photodynamic bacterial inactivation. The mechanisms of cellular killing by eosin-(KLAKLAK)2, however, remain un...

HE previously reported X-ray-induced back mutations of the recessive sexT inked mutants yellow-2 (yz), scute (sc) and white-apricot (w”) (GREEN 1961a) supplemented and extended existing data for Drosophila melanogaster on induced back mutations of the forked mutants f’ and f”” and white-ivory (wz) (MULLER and OSTER 1957; GREEN 1959a; LEFEVRE and GREEN 1959; LEWIS 1959) and leave little doubt th...

Prostate gland is an accessory of the male reproductive system.Prostate begins development from mesenchymal tissue, surrounding urogenital sinus in 3 rd month gestation. Epithelial buds invaginate posterior on either side verumontanum. Concurrently, Wolffian ducts develop into seminal vesicles, epididymis, Vasdeferens and ejaculatory that are stimulated by fetal testosterone. Histologically all...