Ultrathin Ternary FeCoNi Alloy Nanoarrays in BaTiO3 Matrix for Room-Temperature Multiferroic and Hyperbolic Metamaterial.

Multifunctional vertically aligned nanocomposite (VAN) thin films exhibit considerable potential in diverse fields. Here, a BaTiO3-FeCoNi alloy (BTO-FCN) system featuring an ultrathin ternary FCN alloy nanopillar array embedded in the BTO matrix has been developed with tailorable nanopillar size and interpillar distance. The magnetic alloy nanopillars combined with a ferroelectric oxide matrix present intriguing multifunctionality and coupling properties. The room-temperature magnetic response proves the soft magnet nature of the BTO-FCN films with magnetic anisotropy has been demonstrated. Furthermore, the anisotropic nature of the dielectric-metal alloy VAN renders it an ideal candidate for hyperbolic metamaterial (HMM), and the epsilon-near-zero (ENZ) wavelength, where the real part of permittivity (ε') turns to negative, can be tailored from ∼700 nm to ∼1050 nm. Lastly, room-temperature multiferroicity has been demonstrated via interfacial coupling between the magnetic nanopillars and ferroelectric matrix.

The effect of reduced pressure and glucose concentration on hydrogen and volatile fatty acid yield: The role of homoacetogenesis.

In this study, the influence of headspace pressure (HP; 20-100 kPa) and organic loading rate (OLR; 10-30 g/L) on H2 and volatile fatty acid (VFA) yield were investigated. The experiments were carried out in the semi-continuous mode, the main products in VFAs were ethanol and butyrate, which accounted for more than 75%. More than 79% generated H2 was consumed through homoacetogenesis pathway when HP was 100 kPa, and lowing HP could effectively promote the accumulation of H2 (increased by at least 2 times). Even though consumed H2 through homoacetogenesis was related to OLR and HP, the lower HP was more likely to reduce this part H2 consumption, especially under 10 g/L condition. As for acid production rate, both OLR and HP have a significant effect (p < 0.05). Maximum acid production rate was 489.86 mg-COD/g-CODdegrade·d-1when OLR was 20 g/L and HP was 40 kPa.

Cell cycle and radiosensitivity of progeny of irradiated primary cultured human hepatocarcinoma cells.

AIM: To evaluate the change of growth characteristics and radiosensitivity of irradiated primary cultured human hepatocarcinoma cells. METHODS: All tumor tissue samples were obtained from 39 hepatocarcinoma patients with a mean age of 49.6 years (range 22-76 years). We divided the samples into irradiated group and non-irradiated group and measured their plating efficiency (PE), population doubling time (PDT), radiosensitivity index SF2 and cell cycle. RESULTS: The PDT of primary culture of hepatocarcinoma cells was 91.0+/-6.6 h, PE was 12.0+/-1.4%, SF2 was 0.41+/-0.05%. The PDT of their irradiated progeny was 124.8+/-5.8 h, PE was 5.0+/-0.7%, SF2 was 0.65+/-0.09%. The primary cultured human hepatocarcinoma cells showed significant S reduction and G(2) arrest in a dose-dependent manner. The progeny of irradiated primary cultured hepatocarcinoma cells grew more slowly and its radiosensitivity increased. CONCLUSION: The progeny of irradiated primary cultured human hepatocarcinoma cells grows more slowly and its radiosensitivity increases.