26 papers · ranked by Valyu relevance
Samantha Condo, Reisin Cai, Kejia Cai, Ravinder Reddy Regatte
Electron behaviors-including how electrons interact with energy, matter, and magnetic fields-form the foundation of many biomedical imaging modalities, including X-ray imaging, computed tomography (CT), magnetic resonance imaging (MRI), positron emission tomography (PET), optical imaging, electron microscopy, atomic…
Armin Feist, Nora Bach, Nara Rubiano da Silva, Thomas Danz + 11 more
'Marcel Möller' 'Katharina E. Priebe' 'Till Domröse' 'J. Gregor Gatzmann' 'Stefan Rost' 'Jakob Schauss' 'Stefanie Strauch' 'Reiner Bormann' 'Murat Sivis' 'Sascha Schäfer' 'Claus Ropers'] We present the development of the first ultrafast transmission electron microscope (UTEM) driven by localized photoemission from a…
Maryna V. Ivanchenko, Artur A. Indzhykulian, David P. Corey
Hair cells-the sensory cells of the vertebrate inner ear-bear at their apical surfaces a bundle of actin-filled protrusions called stereocilia, which mediate the cells’ mechanosensitivity. Hereditary deafness is often associated with morphological disorganization of stereocilia bundles, with the absence or…
A.J. Wilkinson, P. B. Hirsch
The three scanning electron microscope diffraction based techniques of electron channelling patterns (ECPs), electron channelling contrast imaging (ECCI), and electron back scatter diffraction (EBSD) are reviewed. The dynamical diffraction theory is used to describe the physics of electron channelling, and hence the…
Josef Neumüller
Title: Summary Electron tomography (ET) was developed to overcome some of the problems associated reconstructing three-dimensional (3D) images from 2D election microscopy data from ultrathin slices. Virtual sections of semithin sample are obtained by incremental rotation of the target and this information is used to…
Pavel Kotchetkov, Baptiste Lacoste
Transmission electron microscopy (TEM) is a powerful imaging technique, yielding ultrastructural investigation of organic and non-organic samples. Despite its ability to reach nanoscale resolutions, conventional TEM presents a major disadvantage by only acquiring two-dimensional snapshots, thus hindering our volumetric…
Xujing Li, Ivan Lazić, Xiaojun Huang, Li Wang + 6 more
Scanning transmission electron microscopy (STEM) is a powerful imaging technique and has been widely used in current material science research. The attempts of applying STEM into biological research have been going on for decades while applications have still been limited because of the existing bottlenecks in dose…
K. M. Patel, S. Withington, Alexander G. Shard, D. J. Goldie + 1 more
'Christopher N. Thomas'] Transition-edge sensors (TESs) have the potential to perform electron spectroscopic measurements with far greater measurement rates and efficiencies than can be achieved using existing electron spectrometers. Existing spectrometers filter electrons by energy before detecting a narrow energy…
Z.-H. He, B. Beaurepaire, J. A. Nees, G. Gallé + 6 more
'J. R. Sánchez Pérez' 'M. G. Lagally' 'K. Krushelnick' 'A. G. R. Thomas' 'J. Faure'] Recent progress in laser wakefield acceleration has led to the emergence of a new generation of electron and X-ray sources that may have enormous benefits for ultrafast science. These novel sources promise to become indispensable tools…
F. Javier García de Abajo, Albert Polman, Cruz I. Velasco, Mathieu Kociak + 43 more
'Mathieu Kociak' 'Luiz H. G. Tizei' 'Odile Stéphan' 'Sophie Meuret' 'Takumi Sannomiya' 'Keiichirou Akiba' 'Yves Auad' 'Armin Feist' 'Claus Ropers' 'Peter Baum' 'John H. Gaida' 'Murat Sivis' 'Hugo Lourenço-Martins' 'Luca Serafini' 'Johan Verbeeck' 'Beatrice Matilde Ferrari' 'Cameron J. R. Duncan' 'Maria Giulia Bravi'…
Gorelick Sergey, Korneev Denis, Handley Ava, Gervinskas Gediminas + 7 more
Over the past decade, gallium Focused Ion Beam-Scanning Electron Microscopy (FIB-SEM) has been established as a key technology for cellular tomography. The utility of this approach, however, is severely limited both by throughput and the limited selection of compatible sample preparation protocols. Here, we address…
Wei-Tse Chang, Chun-Yueh Lin, Wei‐Hao Hsu, Mu‐Tung Chang + 3 more
'Yisheng Chen' 'En‐Te Hwu' 'Ing‐Shouh Hwang'] It has been a general trend to develop low-voltage electron microscopes due to their high imaging contrast of the sample and low radiation damage. Atom-resolved transmission electron microscopes with voltages as low as 15-40 kV have been demonstrated. However, achieving…
F. Javier García de Abajo, Albert Polman, Cruz I. Velasco, Mathieu Kociak + 43 more
Over the past century, continuous advancements in electron microscopy have enabled the synthesis, control, and characterization of high-quality free-electron beams. These probes carry an evanescent electromagnetic field that can drive localized excitations and provide high-resolution information on material structures…
Enrico Pomarico, Ye‐Jin Kim, F. Javier Garcı́a de Abajo, Oh‐Hoon Kwon + 2 more
'Oh‐Hoon Kwon' 'Fabrizio Carbone' 'Renske M. van der Veen'] In the quest for dynamic multimodal probing of a material's structure and functionality, it is critical to be able to quantify the chemical state on the atomic- /nanoscale using element-specific electronic and structurally sensitive tools such as electron…
Atsufumi Hirohata, Yasuaki Yamamoto, Benedict A. Murphy, Andrew J. Vick
'Andrew J. Vick'] Recent progress in nanotechnology enables the production of atomically abrupt interfaces in multilayered junctions, allowing for an increase in the number of transistors in a processor. However, uniform electron transport has not yet been achieved across the entire interfacial area in junctions due to…
Zijie Yang, Joshua Kim, Cameron M. Baenen, Samuel J. Fulton + 4 more
Volume electron microscopy (vEM) enables biologists to visualize nanoscale 3D ultrastructure of entire eukaryotic cells and tissues processed by heavy atom staining and plastic embedding. The vEM technique with the highest resolution is focused ion-beam scanning electron microscopy (FIB-SEM), which provides nearly…
Abner Velazco, Thomas Glen, Sven Klumpe, Avery Pennington + 12 more
Scanning electron microscopy (SEM) of frozen-hydrated biological samples allows imaging of subcellular structures at the mesoscale in their native state. Combined with focused ion beam milling (FIB), serial FIB/SEM can be used to build a 3-dimensional picture of cells and tissues. The correlation of specific regions of…
Giuseppe Caruso, Florent Houdellier, Sébastien Weber, Mathieu Kociak + 1 more
'Arnaud Arbouet'] We report on the development of an ultrafast Transmission Electron Microscope based on a laser-driven cold-field emission source. We first describe the instrument before reporting on numerical simulations of the laser-driven electron emission. These simulations predict the temporal and spectral…
Hyeokmin Choe, Ilya Ponomarev, Eric Montgomery, June W. Lau + 5 more
We report mitigation of electron-beam-induced radiation damage in biological macromolecules using rapid, low-dose transmission electron microscopy (TEM) with a new, tunable, retrofittable stroboscopic pulser. Damage mitigation strategies historically consisted of sample cryoprotection and ultra-low beam current…
Michael T. Postek
During the manufacturing of present-day integrated circuits, certain measurements must be made of the submicrometer structures composing the device with a high degree of repeatability. Optical microscopy, scanning electron microscopy, and the various forms of scanning probe microscopies are major microscopical…
Authors not listed
Control over the charge of a nanoparticle (NP) in a radiofrequency ion trap is crucial for mass spectrometric and charge dependent investigations of single NPs. We show how this is achieved for positively charged silica NPs (nominal diameter 100 nm, 350–1400 e) with a simple experimental realization using a standard…
Amy Chen, Asher Leff, Zhenpu Li, Carlos Rios Ocampo + 2 more
Hot carriers generated by localized surface plasmon resonance (LSPR) in plasmonic nanoparticles can drive chemical reactions such as secondary metal deposition and organic catalysis. Rationally designing plasmonic nanostructures to target reactions requires understanding how local geometry impacts hot carrier reaction…
Victor Mairanovsky
A complex approach to the study of the electrode-solution region is proposed that consists in the coupled study of molecular reactivity x and collective properties X. The general conclusion on the presence and value of the electrode effects for x is established by comparing the products of xdir, xhom of the direct…
Huanhuan Hong, Ahsan Habib, Lei Bi, Deepro Qais + 1 more
Mass spectrometry (MS) has become an essential analytical method in every sector of science and technology. Because of its unique ability to provide direct molecular structure information on analytes, an extra method is rarely required. This review describes fabrication of a variable-pressure hollow cathode discharge…
Andie Robinsons, Craig McBeth, Ruman Rahman, Richard Hague + 1 more
The field of bioelectronics is developing exponentially. There is now a drive to interface electronics with biology for the development of new technologies to improve our understanding of electrical forces in biology. This builds on our recently published work in which we show wireless electrochemistry could be used to…
Authors not listed
We present the design and implementation of a portable transfer system equipped with an integrated electrochemical cell that enables the controlled transfer of samples between an electrochemical environment and an ultra-high vacuum (UHV) system without air exposure. This setup allows for the preparation of well-defined…