N-Doped nanocages were prepared with thin-walled graphitic shells (∼1.2 nm), which enhanced electrochemical performance of the nanocages.

OBJECTIVE:To investigate the safety and efficacy of transcatheter arterial chemoembolization (TACE) with embospheres for the treatment of unresectable hepatocellular carcinoma (HCC). METHODS:Patients with unresectable HCC who were treated with TACE followed by embosphere treatment (Embo-TACE) or conventional TACE (cTACE) between May 2010 and March 2014 were retrospectively included in this study. The Embo-TACE group received lipiodol and chemotherapeutic agent emulsion, followed by embospheres. The cTACE group received lipiodol and chemotherapeutic agent emulsion, followed by gelatin sponge pellets. Time to progression (TTP), overall survival (OS), overall response rate (ORR), and safety were compared between the two groups. Univariate and multivariate regression analyses of the factors affecting survival were conducted. RESULTS:The median TTP and OS in the Embo-TACE group were significantly longer than those in the cTACE group (TPP: 7.0 months vs 5.4 months, P = 0.035; OS: 15 months vs 12 months, P = 0.032). Seven days after the first TACE treatment, alanine aminotransferase level was higher in the cTACE group than in the Embo-TACE group (P = 0.015). The ORR did not significantly differ between the two groups (P = 0.827). Additional therapy and local responses one month after the first TACE treatment were associated with OS. CONCLUSIONS:Embo-TACE resulted in a significant improvement in TTP and OS for patients with unresectable HCC, compared with cTACE. Furthermore, Embo-TACE was better tolerated. Additional therapy and local responses one month after the first TACE were independent prognostic factors for OS.

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In this paper, the green body was prepared by pre-roasted material of strontium ferrite, adding 0.2 to 9% the rare earth additive, by wet milling and forming into pellets Φ30×10 mm under magnetic field. Then, the green body was sintered separately by microwave sintering (MS) method and conventional sintering (CS) technique. The results showed that: the strontium ferrite samples with the same magnetic properties Br and (BH) max were 420 ± 10mT and 33.0 ± 2 kJ/m 3) were synthesized by microwave sintering (MS) method against conventional sintering method, the sintering temperature and time were reduced 150~300°C and 5~6h. Therefore, microwave sintering method will significantly decrease energy consumption. Further analysis revealed that the major improvements in microwave sintering were the material microstructure, the grain size was significantly reduced, the magnetic domain short-range order was increased so that the degree of orientation was increased, and although the fusion was existed between grains, the grain boundaries did not disappear.

The Sr0.75La0.25Fe11.75-xCo0.25ZnxO19 hexaferrites are prepared by the ceramic process. Influences of the substitution of Zn2+ ions on crystallographic texture have systematically been investigated by pole figure analysis. The (008) and (107) pole figure shows that the pole intensities are axisymmetric at the center of c axis. With the increase of x, the lattice parameters a and c increase gradually till x=0.15. Excessive Zn2+ addition induces the much coarse grain. The easy-axis alignment of grains decreases from 77.5% to 75.5% for the substitution of Zn2+ ions from 0 to 0.25. When Zn2+ content was from 0 to 0.25, the magnetic properties of Br and (BH)max were increased, while Hcb and Hcj were decreased till x>0.2.