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A set of three-dimensional charge-density-wave (3D CDW) VSe2 nano-flakes with different thicknesses were obtained by the scotch tape-based micro-mechanical exfoliation method. Resistivity measurements showed that the 3D CDW transition temperature Tp decreases systematically from 105 K in bulk to 81.8 K in the 11.6 nm thick flake. The Hall resistivity ρxy of all the flakes showed a linear dependent behavior against the magnetic field with a residual electron concentration of the order of ∼1021 cm−3 at 5 K. The electron concentration n increases slightly as the thickness d decreases, possibly due to the CDW gap is reduced with the decrease of the thickness.

Treatment of large bone defects derived from bone tumor surgery is typically performed in multiple separate operations, such as hyperthermia to extinguish residual malignant cells or implanting bioactive materials to initiate apatite remineralization for tissue repair; it is very challenging to combine these functions into a material. Herein, we report the first photothermal (PT) effect in bismuth (Bi)-doped glasses. On the basis of this discovery, we have developed a new type of Bi-doped bioactive glass that integrates both functions, thus reducing the number of treatment cycles. We demonstrate that Bi-doped bioglasses (BGs) provide high PT efficiency, potentially facilitating photoinduced hyperthermia and bioactivity to allow bone tissue remineralization. The PT effect of Bi-doped BGs can be effectively controlled by managing radiative and non-radiative processes of the active Bi species by quenching photoluminescence (PL) or depolymerizing glass networks. In vitro studies demonstrate that such glasses are biocompatible to tumor and normal cells and that they can promote osteogenic cell proliferation, differentiation, and mineralization. Upon illumination with near-infrared (NIR) light, the bioglass (BG) can efficiently kill bone tumor cells, as demonstrated via in vitro and in vivo experiments. This indicates excellent potential for the integration of multiple functions within the new materials, which will aid in the development and application of novel biomaterials.

INTRODUCTIONThe purpose of this study was to understand TAMU faculty awareness of open access (OA) publishing; assess their attitudes towards, and willingness to, contribute to an institutional repository (IR); and investigate their perceptions of newer OA trends and resources, including Open Educational Resources (OER) and DMPTool. The survey also served as an outreach tool to inform and educate TAMU faculty about OA publishing, the IR, and the Libraries' OA services. METHODS The 34-question survey was conducted between Nov. 6-Dec 15, 2014 using Qualtrics, a web-based survey tool. Responses were anonymous, and participants were prevented from answering the survey more than once. Two hundred ninety-five faculty responded to the survey, resulting in a response rate of 11 percent. RESULTS Survey results suggest that tenured faculty are more engaged and interested in OA publishing topics in general, and tenure-track faculty are more willing to adopt new initiative such as Open Textbooks. Overall, the responding TAMU faculty are willing to consider publishing in OA publications, and almost half of them believe OA journal publications are acceptable for consideration of tenure and promotion in their departments. Despite their positive attitudes towards OA publishing, they are not so positive towards OA mandates. The survey also revealed there is a low awareness level of the TAMU IR, as well as of newer OA trends and resources. CONCLUSION The majority of responding TAMU faculty are aware of OA journals in their fields, and indicated their willingness to publish in an OA publication. Being unaware of the IR deposit process stood out as the greatest barrier that accounts for the low IR participation rate at TAMU. In line with previous studies, copyright concerns, as well as the perception of IR contents as being of lower quality, are the second most significant barriers. Workshops or seminars on copyright, data management, and the IR are badly needed. Several participants appreciated this survey because it provided many web links to the resources mentioned for them to explore further, and as a result they learned a lot from the survey. Despite our best efforts to make faculty aware of the abundance of resources made available by the Libraries, it seems that our audience continues to remain unaware of some of our services and resources. This only reinforces the need for continuous communication-after all, there is no such thing as too many reminders.