Results 41 to 50 of about 1,266,887 (331)

Assembling Di- and Multiatomic Si Clusters in Graphene via Electron Beam Manipulation [PDF]

, 2018
We demonstrate assembly of di-, tri- and tetrameric Si clusters on the graphene surface using sub-atomically focused electron beam of a scanning transmission electron microscope.
Alexandrova, Anastassia N., Dyck, Ondrej, Jesse, Stephen, Jimenez-Izal, Elisa, Kalinin, Sergei V., Kim, Songkil   +5 more
core   +2 more sources

Kinking of GaP Nanowires Grown in an In Situ (S)TEM Gas Cell Holder

Advanced Materials Interfaces, 2023
Nanowires are a promising structure to create new defect‐free heterostructures and optoelectronic devices. GaP nanowires grown via the VLS mechanism using tertiary‐butyl phosphine (TBP) and trimethylgallium (TMGa) as precursors in an in situ closed gas ...
David Krug, Maximilian Widemann, Felix Gruber, Shamail Ahmed, Thomas Demuth, Andreas Beyer, Kerstin Volz   +6 more
doaj   +1 more source

Ohmic contacts to n-type germanium with low specific contact resistivity [PDF]

, 2012
A low temperature nickel process has been developed that produces Ohmic contacts to n-type germanium with specific contact resistivities down to (2.3 ± 1.8) x10^-7 Ω-cm² for anneal temperatures of ...
D. J. Paul, D. R. Leadley, I. MacLaren, K. Gallacher, M. Myronov, Massalski T. B., P. Velha, Pfisterer H., Schroder D. K.   +8 more
core   +1 more source

Characterization of Li-rich layered oxides by using transmission electron microscope

Green Energy & Environment, 2017
Lithium-rich layered oxides (LrLOs) deliver extremely high specific capacities and are considered to be promising candidates for electric vehicle and smart grid applications. However, the application of LrLOs needs further understanding of the structural
Hu Zhao, Bao Qiu, Haocheng Guo, Kai Jia, Zhaoping Liu, Yonggao Xia   +5 more
doaj   +1 more source

Exploring transmission Kikuchi diffraction using a Timepix detector [PDF]

, 2017
Electron backscatter diffraction (EBSD) is a well-established scanning electron microscope (SEM)-based technique [1]. It allows the non-destructive mapping of the crystal structure, texture, crystal phase and strain with a spatial resolution of tens of ...
Maneuski, D., Mingard, K., O'Shea, V., Trager-Cowan, C., Vespucci, S., Winkelmann, A.   +5 more
core   +1 more source

Growth of membrane nanostructures on W co-deposition layer

Nuclear Materials and Energy, 2019
Large-scale mm thick fiberform nanostructures are grown when materials are subjected to high flux helium ions with tungsten particles (ions and neutrals) precipitation.
Shin Kajita, Naoaki Yoshida, Shota Kawaguchi, Hirohiko Tanaka, Noriyasu Ohno, Daisuke Nagata, Masayuki Tokitani   +6 more
doaj   +1 more source

Effect of a Physical Phase Plate on Contrast Transfer in an Aberration-Corrected Transmission Electron Microscope

, 2010
In this theoretical study we analyze contrast transfer of weak-phase objects in a transmission electron microscope, which is equipped with an aberration corrector (Cs-corrector) in the imaging lens system and a physical phase plate in the back focal ...
B. Gamm, Barton, Boersch, Cambie, Chang, Coene, D. Gerthsen, Danev, Haider, Hosokawa, Huang, Jia, K. Schultheiß, Lentzen, Lentzen, Lichte, Lichte, Majorovits, Matsumoto, Nagayama, Nagayama, R.R. Schröder, Rose, Scherzer, Scherzer, Schultheiß, Thust, Tonomura, Zernike   +28 more
core   +1 more source

Exploiting metabolic adaptations to overcome dabrafenib treatment resistance in melanoma cells

Molecular Oncology, EarlyView.
We show that dabrafenib‐resistant melanoma cells undergo mitochondrial remodeling, leading to elevated respiration and ROS production balanced by stronger antioxidant defenses. This altered redox state promotes survival despite mitochondrial damage but renders resistant cells highly vulnerable to ROS‐inducing compounds such as PEITC, highlighting redox
Silvia Eller, Susanne Ebner, Carmen Haselrieder, Julia K. Günther, Astrid Drasche, Sophie Strich, Chiara Volani, Andrea Medici, Aleksandar Nikolajevic, Alex Deltedesco, Johannes E. Sigmund, Michael J. Blumer, Martin Hermann, Johanna Vanacker, Gerald Brandacher, Eduard Stefan, Omar Torres‐Quesada, Jakob Troppmair   +17 more
wiley   +1 more source

Increase of the mean inner Coulomb potential in Au clusters induced by surface tension and its implication for electron scattering

, 2007
Electron holography in a transmission electron microscope was applied to measure the phase shift induced by Au clusters as a function of the cluster size. Large phase shifts Df observed for small Au clusters cannot be described by the well-known equation
A. Rosenauer, Andreas Rosenauer, Artur Böttcher, C. Y. Yang, Dagmar Gerthsen, Daniel Löffler, Erich Müller, F. Jona, H. A. Bethe, H. G. Boyen, J. Klabande, L. Reimer, Marco Schowalter, Matthias Wanner, Patrick Weis, R. L. Wetten, Radian Popescu, S. Ichikawa   +17 more
core   +1 more source

Engineered extracellular vesicles enriched with the miR‐214/199a cluster enhance the efficacy of chemotherapy in ovarian cancer

Molecular Oncology, EarlyView.
Loss of the miR‐214/199a cluster is associated with recurrence in ovarian cancer. Engineered small extracellular vesicles (m214‐sEVs) elevate miR‐214‐3p/miR‐199a‐5p in tumor cells, suppress β‐catenin, TLR4, and YKT6 signaling, reprogram tumor‐derived sEV cargo, reduce chemoresistance and migration, and enhance carboplatin efficacy and survival in ...
Weida Wang, Ayesha Alvero, Yi Qin, Mingjin Wang, Alexandra Fox, Yanfeng Li, Michael Millman, Amy Kemper, Gil Mor, Xian Shuang Liu, Michael Chopp, Zheng Gang Zhang, Yi Zhang   +12 more
wiley   +1 more source