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Simple room-temperature self-assemblies between Cd2+ salts, SCN− and bisimidazole molecules at pH = 2 created three new organically templated thiocyanatocadmates [H2(L1)][Cd(SCN)4]·H2O (L1 = 1,4-bis(1H-imidazol-1-yl)benzene) 1, [H2(L2)][Cd(SCN)4] (L2 = 1,3-bis(2-methylimidazol-1-yl)propane) 2, and [H2(L3)][Cd2(SCN)6] (L3 = 1,4-bis(2-methyl-1H-imidazol-1-yl)butane) 3. X-ray single-crystal diffraction analysis reveals that (i) in 1–3, the SCN− groups doubly bridge the Cd2+ centers to form different thiocyanatocadmates: a linear chain in 1; a zigzag chain in 2; and a 2-D layer network (63 net) in 3; and (ii) in 1, via Nbase–H…NSCN interactions, the L1 molecules extend the thiocyanatocadmate chains into a 2-D supramolecular layer, whereas in 2, the zigzag thiocyanatocadmate chains self-assemble into a 3-D supramolecular network via weak S…S interactions. Photoluminescence analysis indicates that the three title compounds all emit light: blue light for 1 and 2 and green light for 3. At low temperatures, the emission positions of the three compounds hardly change, but the emission intensities are largely enhanced. Interestingly, after turning off the UV lamp, 1 and 2 still briefly emit light (ca. 2 s), which means that 1 and 2 possess phosphorescence properties. Phosphorescence lifetimes at 77 K are 1619 ms for 1 and 247 ms for 2. [ABSTRACT FROM AUTHOR]

PURPOSE: To detect the expression of NF-κB and HPA in oral squamous cell carcinoma (OSCC) by tissue microarray assay and investigate their clinical significance. METHODS: Tissue microarray assay and immunohistochemistry were applied to detect the expression of NF-κB and HPA in 146 cases of OSCC and 48 cases of normal control. Chi-square test and Spearman rank correlation were performed using SPSS 13.0 software package for statistics. RESULTS: The positive rates of NF-κB and HPA were 69.2% and 63.7%, respectively. There was significant difference compared with normal oral mucosa (P<0.05). The expression of NF-κB and HPA in OSCC was significantly correlated with histological differentiation, clinical stage and lymph node or distant metastasis (P<0.05), but not with sex and age of the patients or site of the tumor (P>0.05). The expression of NF-κB had a significant positive correlation with the expression of HPA in OSCC (r=0.7301, P<0.05). CONCLUSION: The expression of NF-κB and HPA may have synergistic effect on the carcinogenesis and progression of OSCC. [ABSTRACT FROM AUTHOR]