Microwave Synthesis of Nanoparticulate SmFeO₃ and Its Characterization.

Single phase perovskite SmFeO₃ nanoparticles were synthesized using a simple microwave method using Fe(NO₃)₃· 9H₂O and Sm(NO³)³ · 6H₂O. The resulting samples were characterized by powder X-ray diffraction (XRD), scanning electron microscopy (SEM), Brunauer-Emmett-Teller (BET) surface area measurement, UV-visible diffuse reflectance spectroscopy (DRS) and Fourier transform infrared spectroscopy (FTIR). XRD and SEM results demonstrate the successful synthesis of nanocrystalline SmFeO₃ and show an average grain size of 50-60 nm.

Preparation of Ni-Doped CeFeO₃ by Microwave Process and Its Visible-Light Photocatalytic Activity.

Using Ce(NO₃)₃· 6H₂O, Fe(NO₃)₃· 9H₂O and Ni(NO₃)₃· 6H₂O as the main raw materials, nano Ni-doped CeFeO₃ was prepared by the microwave method for the first time. The Ni-doped CeFeO₃samples were characterized by XRD, SEM, DRS and EDS. The results show that Ni-doped CeFeO₃exhibits a perovskite structure (ABO₃), and contains nanosheets less than 10 nm thick.

Self-floating graphitic carbon nitride/zinc phthalocyanine nanofibers for photocatalytic degradation of contaminants.

The effective elimination of micropollutants by an environmentally friendly method has received extensive attention recently. In this study, a photocatalyst based on polyacrylonitrile (PAN)-supported graphitic carbon nitride coupled with zinc phthalocyanine nanofibers (g-C3N4/ZnTcPc/PAN nanofibers) was successfully prepared, where g-C3N4/ZnTcPc was introduced as the catalytic entity and the PAN nanofibers were employed as support to overcome the defects of easy aggregation and difficult recycling. Herein, rhodamine B (RhB), 4-chlorophenol and carbamazepine (CBZ) were selected as the model pollutants.

Aberrant ADAM10 expression correlates with osteosarcoma progression.

Background: Osteosarcoma is the most common type of bone cancer and is notorious for its rapid progression. The Notch signaling pathway has recently been shown to be involved in osteosarcoma. As a major sheddase of Notch receptors, ADAM10 has been implicated in many types of cancers, but its role in osteosarcoma has not been investigated.

Telbivudine treatment corrects HBV-induced epigenetic alterations in liver cells of patients with chronic hepatitis B.

Unlabelled: Hepatitis B virus (HBV) alters the expression of host cellular genes to support its replication and survival and to promote the liver cell injury. However, the underlying mechanism remained incompletely understood. In this study, we investigated HBV-induced epigenetic changes in HepG2 cells by profiling the landscapes of the active histone modification mark H3K4me3 and repressive mark H3K27me3 using chromatin immunoprecipitation-sequencing.

Cross-immunizing potential of tumor MAGE-A epitopes recognized by HLA-A*02:01-restricted cytotoxic T lymphocytes.

Almost all melanoma cells express at least one member of the MAGE-A antigen family, making the cytotoxic T cells (CTLs) epitopes with cross-immunizing potential in this family attractive candidates for the broad spectrum of anti-melanoma immunotherapy. In this study, four highly homologous peptides (P264: FLWGPRALA, P264I9: FLWGPRALI, P264V9: FLWGPRALV, and P264H8: FLWGPRAHA) from the MAGE-A antigens were selected by homologous alignment. All four peptides showed high binding affinity and stability to HLA-A*02:01 molecules, and could prime CTL immune responses in human PBMCs and in HLA-A*02:01/K(b) transgenic mice.