Results 91 to 100 of about 70,841 (284)

Quantitative Electron Beam‐Single Atom Interactions Enabled by Sub‐20‐pm Precision Targeting

open access: yesAdvanced Science, EarlyView.
Atomic lock‐on (ALO) is a rapid, low‐dose in situ technique in scanning transmission electron microscopy (STEM) that achieves sub‐20 picometer (pm) beam positioning. A sparse annular scan collects positional information while avoiding irradiation of the target site.
Kevin M. Roccapriore   +2 more
wiley   +1 more source

Water, Collagen, and Lipid Content in the Human Skin and Muscles Assessed with Near‐Infrared Diffuse Reflectance Spectroscopy and Multi‐Spectral Optoacoustic Tomography

open access: yesAdvanced Science, EarlyView.
Authors present a novel approach combining multispectral optoacoustic tomography and diffuse reflectance spectroscopy for noninvasive assessment of body composition, including water, lipid, and collagen in skin and muscles. Its high molecular and spatial specificity offers improved diagnostic potential for conditions like obesity and sarcopenia ...
Denis Davydov   +9 more
wiley   +1 more source

Revealing a Pathway for Low‐Temperature Recrystallization in Germanium

open access: yesAdvanced Science, EarlyView.
This study reports the discovery that energy transferred to electrons and atoms by highly ionizing ions results in a disorder‐order (amorphous‐crystalline) phase transformation in noncrystalline (amorphous) Ge. This discovery unlocks low‐temperature recrystallization pathways in Ge, offering a nonthermal strategy for fabricating Ge‐based devices that ...
Gihan Velişa   +8 more
wiley   +1 more source

Real‐Time Detection of Hot Electrons During Chemical Reactions with Catalytic Nanodevices

open access: yesAdvanced Science, EarlyView.
This Review highlights recent advances in the detection of hot electrons generated during catalytic surface reactions through non‐adiabatic energy dissipation. By integrating metal–semiconductor junctions into catalytic nanodevices, researchers can monitor charge carrier flow in real time, offering new insights into interfacial energy conversion ...
Yeji Yoon, Si Woo Lee
wiley   +1 more source

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