Category: Nanotech
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A gold electrode fabrication technology that can be combined with thermotherapy technology based on photothermy
Graphical abstract. Credit: ACS Applied Materials & Interfaces (2023). DOI: 10.1021/acsami.3c01160 DGIST Professor Hongki Kang of the Department of Electrical Engineering & Computer Science and his research team successfully developed a selective photothermal layer formation technology and a transparent electrode based on the fine inkjet printing solution process. This technology is anticipated to contribute to…
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Fighting cancer with light, and a drug that self-assembles into nanoparticles
EM images of PdL nanoparticles detected in DMEM, blood and tumor site. (a, b) TEM and EDX element mapping images of nanoparticles detected in DMEM (10% FBS) and in the blood of mice 5 min after treatment with PdL. (c) EM images at different magnifications of slices of A375 tumors in mouse xenografts 12 h after intravenous…
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Boosting solar efficiency with nano matchsticks
May 12, 2023 (Nanowerk News) Researchers in Australia have demonstrated a highly efficient mechanism for extracting energy from metal nanocrystals, with potential benefits in photovoltaics, photocatalysis and optoelectronics. Based at RMIT University and CISRO, the Exciton Science-led team created nanometre-sized ‘matchsticks’ – tiny structures made with gold nanorods and cadmium selenide tips. The metal end…
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Soaking it up: Nanoparticle sponge boosts photocatalysis
May 12, 2023 (Nanowerk News) Exciton Science researchers have created a new type of highly absorbent material that could help to increase the efficiency of photocatalysis for hydrogen production and water purification. Based at RMIT University, the team combined silver nanoparticles with molecular organic cages to develop a new material that acts like a sponge,…
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New surface coating technology increases materials’ electron emission seven-fold
May 12, 2023 (Nanowerk News) An international research group has developed a new surface coating technology that is capable of significantly increasing electron emission in materials (Applied Physics Letters, “Work function lowering of LaB6 by monolayer hexagonal boron nitride coating for improved photo- and thermionic-cathodes”). Their breakthrough is expected to improve the production of high-efficiency…
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Radiation shielding performance of metal oxides/EPDM rubber composites using Geant4 simulation and computational study
The mass attenuation coefficients (μ/ρ) for EPDM rubber composites filled with 200 phr of some metal oxides (Al2O3, CuO, CdO, Gd2O3 and Bi2O3) were simulated using Geant4 toolkit at different photon energies in the range between 0.015 and 15 MeV. To examine the precision of the simulated results32, the μ/ρ results simulated by the Geant4 code…
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Ti3C2Tx MXene as a growth template for amorphous RuOx in carbon nanofiber-based flexible electrodes for enhanced pseudocapacitive energy storage
Figure 1 schematically illustrates the overall procedure used for the syntheses of the binder-free and free-standing RuOx-MCNF electrodes. The MXene was adequately etched from the Ti3AlC2 MAX phase (Fig. S1); it had a lateral size of <1 μm (Fig. S2) and monolayer sheet thickness of ~2 nm (Fig. S3). Furthermore, the synthesized Ti3C2Tx MXene had abundant functional…
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Efficacious elimination of crystal violet pollutant via photo-Fenton process based on Gd(2−x)La(x)Zr2O7 nanoparticles
X-ray diffraction (XRD) X-ray diffraction pattern of Gd(2−x)La(x)Zr2O7 fabricated based on a sol–gel auto-combustion route with tartaric acid as a fuel and annealed at 1100 °C for 2 h is depicted in Fig. 2. The broad diffraction peaks associated with (111), (200), (220), (311), and (222) reflections of the defect-fluorite-structured Gd2Zr2O7 with space group: Fm-3 m (PDF#80–0471) at 2θ = 29.41°,…
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One-pot synthesis of CdS/CeO2 heterojunction nanocomposite with tunable bandgap for the enhanced advanced oxidation process
Characterization X-ray diffraction analysis The structural properties and phase compositions of the synthesized nanocomposites with different molar ratios of CdS:CeO2 were analyzed by X-ray diffraction analysis using Philips X’PERT with Cu-Kα radiation having a scan speed of 2°/min at 25 °C. The X-ray diffraction pattern of the synthesized CdS/CeO2 nanocomposites is represented in Fig. 3a. The peaks…
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A novel method for enhancing optical properties of MXenes
Figure 1. OA Z-scan results of Nb2C/MoS2 and Nb2C with an excitation wavelength of (a) 1300 nm and (b) 1550 nm. The corresponding nonlinear transmittance curves under excitation optical intensity are shown in (c) and (d). (e) Fitted nonlinear optics parameter for comparison. Credit: Compuscript Ltd. Two-dimensional layered materials are a novel class of materials…