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VO2 (M) STF through reduction of V2O5 STF was prepared. The results illustrate that V2O5 STF can be successfully obtained by oblique angle thermal evaporation technique. After annealing at 5506C/3 min, the V2O5 STF deposited at 856 can be easily transformed into VO2 STF with slanted columnar structure and superior thermochromic properties. After deposition SiO2 antireflective layer, Tlum of VO2 STF is enhanced 26% and DTsol increases 60% compared with that of normal VO2 thin films. Due to the anisotropic microstructure of VO2 STF, angular selectivity transmission of VO2 STF is observed and the solar modulation ability is further improved from 7.2% to 8.7% when light is along columnar direction. Moreover, the phase transition temperature of VO2 STF can be depressed into 54.56C without doping. Considering the oblique incidence of sunlight on windows, VO2 STF is more beneficial for practical application as smart windows compared with normal homogenous VO2 thin films [ABSTRACT FROM AUTHOR]

Poly (vinyl alcohol) (PVA) and poly (vinyl pyrrolidone) (PVP) nanofibers embedding Ag nanoparticles (5–18 nm) have been prepared successfully by electrospinning at room temperature. Scanning electron microscope (SEM), X-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM), Fourier transform IR spectra (FTIR), and Raman scattering were used to characterize the structure and properties of Ag nanoparticle-embedded PVA and PVP nanofibers before and after heat treatment at different temperature. The antibacterial activity of Ag nanoparticle-embedded PVP nanofibers after heat treatment was also tested, which indicated that the biological activity of yeast cells was effectively inhibited by these Ag nanoparticle-embedded PVP nanofibers. [ABSTRACT FROM AUTHOR]

Novel GeS2–Ga2S3–AgCl chalcohalide glasses had been prepared by melt-quenching technique, and the glass-forming region was determined by XRD, which indicated that the maximum of dissolvable AgCl was up to 65 mol%. Thermal and optical properties of the glasses were studied by differential scanning calorimetry (DSC) and Visible-IR transmission, which showed that most of GeS2–Ga2S3–AgCl glasses had strong glass-forming ability and broad region of transmission (about 0.45–12.5 μm). With the addition of AgCl, the glass transition temperature, Tg decreases distinctly, and the short-wavelength cut-off edge (λvis) of the glasses also shifts to the long wavelength gradually. However, the glass-forming ability of the glass has a complicated evolutional trend depended on the compositional change. In addition, the values of the Vickers microhardness, H v , which decrease with the addition of AgCl, are high enough for the practical applications. These excellent properties of GeS2–Ga2S3–AgCl glasses make them potentially applied in the optoelectronic field, such as all-optical switch, etc. [ABSTRACT FROM AUTHOR]

Triple-negative breast cancer (TNBC) is associated with poor clinical prognosis due to a lack of effective therapeutic options. The expression of B-cell lymphoma/leukemia 11A (BCL11A) has been indicated to correlate with TNBC carcinogenesis, though the precise mechanisms of BCL11A-induced tumorigenesis in TNBC remain unclear. Using data retrieved from The Cancer Genome Atlas (TCGA) database, the present study demonstrated that BCL11A expression was upregulated in TNBC, compared with other types of breast cancer. Furthermore, in a tissue microarray of 140 patients with breast cancer, an elevated BCL11A level was correlated with unfavorable overall survival (OS), and exogenous BCL11A-knockdown was subsequently verified to inhibit tumor growth and metastasis in TNBC. Notably, the same tissue microarray revealed that a favorable patient outcome was associated with high expression levels of BCL11A and androgen receptor (AR). Moreover, BCL11A-knockdown significantly inhibited the expression level of AR and further had an influence on proliferation, migration and invasion in TNBC cell lines. Collectively, the results of the current study indicate the function of BCL11A in TNBC progression, and provide new insights into the unique mechanism of BCL11A in AR regulation, emphasizing the significance of more research on BCL11A and AR regulation in TNBC molecular treatment. [ABSTRACT FROM AUTHOR]

Graphical abstract Highlights • Novel VO x -based films coated with SiO 2 superhydrophobic coating are prepared. • VO x /SiO 2 composite films have good thermochromic and self-cleaning properties. • SiO 2 superhydrophobic coating render VO x -based films self-cleaning property. • The original excellent thermochromic of VO x -based films have been retained. Abstract The practical application of VO 2 smart glass is usually restricted by poor thermochromic property and contaminant. In this study, the VO x /SiO 2 composite films were fabricated using magnetron sputtering and sol-gel preparations. Compared with VO x -based films, the VO x /SiO 2 composite films showed the superhydrophobic property, and its water contact angle was up to 165°. At the same time, the VO x /SiO 2 composite films retained the original excellent thermochromic property with solar regulation of 13.95%, luminous transmittance of 37.34% and the low phase transition temperature around 38℃. This study provided guidance for the combined application of VO 2 smart glass and superhydrophobic coating. [ABSTRACT FROM AUTHOR]

Thermochromic W-doped VO2 nanopowders were prepared by a novel and simple solution-based method and characterized by a variety of techniques. We mainly investigated the effect of tungsten dopant on the structural properties and phase transition of V1-xWxO2. The as-obtained nanopowders with tungsten content of ⩽2.5 at% can be readily indexed as monoclinic VO2 (M) while that of 3 at% assigned into the rutile VO2 (R). The valence state of tungsten in the nanopowders is +6. TEM and XRD results show that the substitution of W atom for V in VO2 results in a decrease of the d space of the (011) plane. The phase transition temperature is determined by differential scanning calorimetry (DSC). It is found, for the first time, that the reduction of transition temperature reaches to 17 K per 1 at% of Wdoping with the tungsten extents of ⩽1 at%, but only 9.5 K per 1 at% with the tungsten extents of >1 at%. The reason of this arises from the difficulty of the formation of V3+-W4+ and V3+-W6+ pairs by the increasing of Wions doping in the V1-xWxO2 system. [ABSTRACT FROM AUTHOR]