5 research outputs found

    Supplementary Material, DS_10.1177_0022034518775036 – NLRP6 Induces Pyroptosis by Activation of Caspase-1 in Gingival Fibroblasts

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    <p>Supplementary Material, DS_10.1177_0022034518775036 for NLRP6 Induces Pyroptosis by Activation of Caspase-1 in Gingival Fibroblasts by W. Liu, J. Liu, W. Wang, Y. Wang and X. Ouyang in Journal of Dental Research</p

    Impact of Nitrogen Doping on Electrical Conduction in Anatase TiO<sub>2</sub> Thin Films

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    Nitrogen doping-induced changes in the electrical conduction of anatase TiO<sub>1‑<i>x</i></sub>N<sub><i>x</i></sub> (<i>x</i> ≤ 0.12) thin films were investigated by combining electrical measurement with structural characterization. The Hall effect data indicate that when the doping level reaches 4 at.%, the O substitution with N results in a p-type conduction, in spite of the self-compensation effect, and the Hall mobility of holes is more than 20 cm<sup>2</sup>/(V s). On the basis of the experimental results from X-ray diffraction, X-ray photoemission spectroscopy, and temperature-resistance relationship, a mechanism involving hopping conduction and band conduction is proposed to interpret the transport behavior of carriers. In addition, the origin of the p-type based on the structural character of the film will also be discussed

    Impact of Nitrogen Doping on Electrical Conduction in Anatase TiO<sub>2</sub> Thin Films

    No full text
    Nitrogen doping-induced changes in the electrical conduction of anatase TiO<sub>1‑<i>x</i></sub>N<sub><i>x</i></sub> (<i>x</i> ≤ 0.12) thin films were investigated by combining electrical measurement with structural characterization. The Hall effect data indicate that when the doping level reaches 4 at.%, the O substitution with N results in a p-type conduction, in spite of the self-compensation effect, and the Hall mobility of holes is more than 20 cm<sup>2</sup>/(V s). On the basis of the experimental results from X-ray diffraction, X-ray photoemission spectroscopy, and temperature-resistance relationship, a mechanism involving hopping conduction and band conduction is proposed to interpret the transport behavior of carriers. In addition, the origin of the p-type based on the structural character of the film will also be discussed

    Direct Measurements of Magnetic Polarons in Cd<sub>1–<i>x</i></sub>Mn<sub><i>x</i></sub>Se Nanocrystals from Resonant Photoluminescence

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    In semiconductors, quantum confinement can greatly enhance the interaction between band carriers (electrons and holes) and dopant atoms. One manifestation of this enhancement is the increased stability of <i>exciton magnetic polarons</i> in magnetically doped nanostructures. In the limit of very strong 0D confinement that is realized in colloidal semiconductor nanocrystals, a single exciton can exert an effective exchange field <i>B</i><sub>ex</sub> on the embedded magnetic dopants that exceeds several tesla. Here we use the very sensitive method of resonant photoluminescence (PL) to directly measure the presence and properties of exciton magnetic polarons in colloidal Cd<sub>1–<i>x</i></sub>Mn<sub><i>x</i></sub>Se nanocrystals. Despite small Mn<sup>2+</sup> concentrations (<i>x</i> = 0.4–1.6%), large polaron binding energies up to ∼26 meV are observed at low temperatures via the substantial Stokes shift between the pump laser and the resonant PL maximum, indicating nearly complete alignment of all Mn<sup>2+</sup> spins by <i>B</i><sub>ex</sub>. Temperature and magnetic field-dependent studies reveal that <i>B</i><sub>ex</sub> ≈ 10 T in these nanocrystals, in good agreement with theoretical estimates. Further, the emission line widths provide direct insight into the statistical fluctuations of the Mn<sup>2+</sup> spins. These resonant PL studies provide detailed insight into collective magnetic phenomena, especially in lightly doped nanocrystals where conventional techniques such as nonresonant PL or time-resolved PL provide ambiguous results

    Efficient Capture and High Activity Release of Circulating Tumor Cells by Using TiO<sub>2</sub> Nanorod Arrays Coated with Soluble MnO<sub>2</sub> Nanoparticles

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    Effective capture and release of circulating tumor cells (CTCs) with high viability is still a challenge in medical research. We design a novel approach with efficient yield and high cell activity for the capture and release of CTCs. Our platform is based on TiO<sub>2</sub> nanorod arrays coated with transparent MnO<sub>2</sub> nanoparticles. We use hydrothermal synthesis to prepare TiO<sub>2</sub> nanorod arrays, the MnO<sub>2</sub> nanoparticles are fabricated through in situ self-assembly on the substrate to form a monolayer and etched by oxalic acid with low concentration at room temperature. Up to 92.9% of target cells are isolated from the samples using our capture system and the captured cells can be released from the platform, the saturated release efficiency is 89.9%. Employing lower than 2 × 10<sup>–3</sup> M concentration of oxalic acid to dissolve MnO<sub>2</sub>, the viability of MCF-7 cancer cells exceed 90%. Such a combination of the two-dimensional and three-dimensional platforms provides a new approach isolate CTCs from patient blood samples
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