Results 21 to 30 of about 2,594 (178)
Direct observation of elemental segregation in InGaN nanowires by X‐ray nanoprobe
Physica Status Solidi - Rapid Research Letters, 2011 AbstractUsing synchrotron radiation nanoprobe, this work reports on the elemental distribution in single Inx Ga1–xN nanowires (NWs) grown by molecular beam epitaxy directly on Si(111) substrates. Single NWs dispersed on Al covered sapphire were characterized by nano‐X‐ray fluorescence, Raman scattering and photoluminescence spectroscopy. Both Ga and In
Juan Ángel Sans Tresserras +2 more
exaly +4 more sources
The Velociprobe: An ultrafast hard X-ray nanoprobe for high-resolution ptychographic imaging [PDF]
Review of Scientific Instruments, 2019 Motivated by the advanced photon source upgrade, a new hard X-ray microscope called “Velociprobe” has been recently designed and built for fast ptychographic imaging with high spatial resolution. We are addressing the challenges of high-resolution and fast scanning with novel hardware designs, advanced motion controls, and new data acquisition ...
Yudong Yao, Si Chen, Curt Preissner
exaly +3 more sources
Spatially resolved nanostructural analysis of disordered phases in carbonated alkali-activated slag [PDF]
Nature CommunicationsAlkali-activated slag (AAS) is a promising low-CO2 alternative cement consisting of several disordered phases of similar composition. Although their local atomic arrangements are known to influence macroscopic behavior, determination of structural ...
Eric R. McCaslin +6 more
doaj +2 more sources
Micropipette aspiration as a tool for single-particle X-ray imaging and diffraction
Journal of Synchrotron Radiation, 2023 A sample environment and manipulation tool is presented for single-particle X-ray experiments in an aqueous environment. The system is based on a single water droplet, positioned on a substrate that is structured by a hydrophobic and hydrophilic pattern ...
Hendrik Bruns +5 more
doaj +1 more source
Advanced Photonics Research, 2023 Hybrid semiconductor nanowire (NW) heterostructures are an ideal playground for cutting‐edge optoelectronic nanodevices. Among the several synthesis methods, Plateau–Rayleigh (PR) crystal growth is an effective route for producing decorated NWs with ...
Jaime Dolado +8 more
doaj +1 more source
Hard X-ray nanoprobe with refractive X-ray lenses [PDF]
Acta Crystallographica Section A Foundations of Crystallography, 2005 C. G. Schroer, O. Kurapova, J. Patommel, P. Boye, J. Feldkamp, B. Lengeler, M. Burghammer, C. Riekel, L. Vincze, A. van der Hart, M. Kuchler HASYLAB at DESY, Notkestr. 85, D-22607 Hamburg, Germany II. Physikalisches Institut, Aachen University, D-52056 Aachen, Germany ESRF, BP 220, F-38043 Grenoble Cedex, France Department of Analytical Chemistry ...
C. G. Schroer +8 more
openaire +2 more sources
Design and analysis of flexure hinge displacement mechanism with nano precision
He jishu, 2022 BackgroundThe focusing spot size of advanced synchrotron radiation hard X-ray nanoprobe can reach 10 nm level. For example, the Shanghai Synchrotron Radiation Facility Hard X-ray Nanoprobe Beamline has strict requirements for the accuracy, stability ...
ZENG Chao +3 more
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The Bionanoprobe: hard X-ray fluorescence nanoprobe with cryogenic capabilities [PDF]
Journal of Synchrotron Radiation, 2013 Hard X-ray fluorescence microscopy is one of the most sensitive techniques for performing trace elemental analysis of biological samples such as whole cells and tissues. Conventional sample preparation methods usually involve dehydration, which removes cellular water and may consequently cause structural collapse, or invasive processes such as ...
Chen, S. +27 more
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Advanced Science, 2022 Positive resection margin frequently exists in breast‐conserving treatment (BCT) of early‐stage breast cancer, and insufficient therapeutic efficacy is common during radiotherapy (RT) in advanced breast cancer patients. Moreover, a multimodal nanotherapy
Rui‐Qin Yang +10 more
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Development of a New Method Based on Copper Sulfide Nanoparticles for the Determination of Fentanyl in Biological Samples [PDF]
ImmunoAnalysis, 2022 Background: Fentanyl is an opioid analgesic drug extensively used to alleviate pain with no consciousness loss. To address the fentanyl crisis from the criminal and medical perspectives,the development of a free drug determination methodology for this ...
Sedigheh Mohammadzadeh, Zahra Karimzadeh
doaj +1 more source