High-performance heaters based on nanoscale-thick graphite films

Graphical abstract. Credit: ACS Applied Materials & Interfaces (2022). DOI: 10.1021/acsami.1c23803 Combining multiple carbon nanomaterials in a single substance can yield surprising properties. KAUST researchers have created thin graphite films that could act as high-performance flexible heater panels, reaching several hundred degrees within seconds when a small voltage is applied. They also showed that the… Continue reading High-performance heaters based on nanoscale-thick graphite films

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Generating high-resolution self-packaged liquid metal nanopatterns

Laser interference lithography is invented for nano-patterning liquid metal (LM). The resolution in LM patterns breaks the optical limit of laser beams. Pulsed-laser-induced compression enables uniform 500-nm LM nanolayers. The robust oxide shell on LM boosts the mechanical properties and reliability. Credit: Matter (2022). DOI: 10.1016/j.matt.2022.01.004 In a new report now published in Matter, Licong… Continue reading Generating high-resolution self-packaged liquid metal nanopatterns

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Atomic-scale friction between single-asperity contacts unveiled through in situ transmission electron microscopy

Achanta, S. & Celis, J.-P. in Fundamentals of Friction and Wear on the Nanoscale (eds Gnecco, E. & Meyer, E.) 631–656 (Springer, 2015). Jacobs, T. D. B., Greiner, C., Wahl, K. J. & Carpick, R. W. Insights into tribology from in situ nanoscale experiments. MRS Bull. 44, 478–486 (2019). Article  Google Scholar  Park, J. Y.… Continue reading Atomic-scale friction between single-asperity contacts unveiled through in situ transmission electron microscopy

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In vivo non-invasive confocal fluorescence imaging beyond 1,700 nm using superconducting nanowire single-photon detectors

Horton, N. G. et al. In vivo three-photon microscopy of subcortical structures within an intact mouse brain. Nat. Photon. 7, 205–209 (2013). CAS  Article  Google Scholar  Yildirim, M., Sugihara, H., So, P. T. C. & Sur, M. Functional imaging of visual cortical layers and subplate in awake mice with optimized three-photon microscopy. Nat. Commun. 10,… Continue reading In vivo non-invasive confocal fluorescence imaging beyond 1,700 nm using superconducting nanowire single-photon detectors

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Non-classical mechanical states guided in a phononic waveguide

Aspelmeyer, M., Kippenberg, T. J. & Marquardt, F. Cavity optomechanics. Rev. Mod. Phys. 86, 1391 (2014). Article  ADS  Google Scholar  O’Connell, A. D. et al. Quantum ground state and single-phonon control of a mechanical resonator. Nature 464, 697–703 (2010). Article  ADS  Google Scholar  Palomaki, T., Teufel, J., Simmonds, R. & Lehnert, K. Entangling mechanical motion… Continue reading Non-classical mechanical states guided in a phononic waveguide

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A pyroptosis nanotuner for cancer therapy

Bergsbaken, T., Fink, S. L. & Cookson, B. T. Pyroptosis: host cell death and inflammation. Nat. Rev. Microbiol. 7, 99–109 (2009). CAS  Article  Google Scholar  Shi, J. et al. Cleavage of GSDMD by inflammatory caspases determines pyroptotic cell death. Nature 526, 660–665 (2015). CAS  Article  Google Scholar  Broz, P., Pelegrin, P. & Shao, F. The… Continue reading A pyroptosis nanotuner for cancer therapy

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Systematic characterization of cleanroom-free fabricated macrovalves, demonstrating pumps and mixers for automated fluid handling tuned for organ-on-chip applications

Ingber, D. E. Reverse Engineering Human Pathophysiology with Organs-on-Chips. Cell 164, 1105–1109 (2016). Article  Google Scholar  Bhatia, S. N. & Ingber, D. E. Microfluidic organs-on-chips. Nat. Biotechnol. 32, 760–772 (2014). Article  Google Scholar  Reardon, S. ‘Organs-on-chips’ go mainstream. Nature 523, 266 (2015). Article  Google Scholar  Sontheimer-Phelps, A., Hassell, B. A. & Ingber, D. E. Modelling… Continue reading Systematic characterization of cleanroom-free fabricated macrovalves, demonstrating pumps and mixers for automated fluid handling tuned for organ-on-chip applications

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Band conductivity oscillations in a gate-tunable graphene superlattice

Artificial crystals, realised by moiré superlattices in heterostructures of 2D materials1,2,3 or by imposing a nanopatterned superlattice4,5,6 on a 2D electron system (2DES) like graphene, provide the opportunity to study transport characteristics of charge carriers in a periodic potential. Under the influence of such a superlattice it becomes possible to modify the band structure and… Continue reading Band conductivity oscillations in a gate-tunable graphene superlattice

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Achieving low-power single-wavelength-pair nanoscopy with NIR-II continuous-wave laser for multi-chromatic probes

Synthesis of NaYF4:Nd (3%) nanoparticles NaYF4:Nd (3%) nanoparticles (10.6 ± 1.0 nm) were synthesized using previously reported methods40. In a typical procedure, 5 mL Ln(CH3CO2)3 aqueous solution with 0.03 mmol Nd3+ and 0.97 mmol Y3+ was added into a 100-mL round bottom flask containing 7.5 mL OA and 17.5 mL ODE. The mixture under stirring was heated to 120 °C for 10 min to remove… Continue reading Achieving low-power single-wavelength-pair nanoscopy with NIR-II continuous-wave laser for multi-chromatic probes

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A novel spiral infinity reactor for continuous hydrothermal synthesis of nanoparticles

Simulation results of ceria nanoparticle synthesis obtained using the coupled CFD-PBM are presented in this section. As mixing and chemical reactions depend on both the absolute and relative flow rates of the two reactant streams, they are varied in the simulations, and their effect on hydrodynamics, mass transport, heat transport and particle dynamics are characterized.… Continue reading A novel spiral infinity reactor for continuous hydrothermal synthesis of nanoparticles

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