Results 91 to 100 of about 32,735 (279)

Miniaturized Conductometric Biosensor for Rapid Detection of TNF‐α in Saliva

open access: yesAdvanced NanoBiomed Research, EarlyView.
A miniaturized conductometric sensor detects TNF‐α at femtomolar levels with high selectivity. The device enables noninvasive testing using pooled human saliva and supports smartphone‐based, real‐time resistance readings. This portable biosensor offers a practical alternative for monitoring TNF‐α, providing new opportunities for diabetes and related ...
Mingjie Yang   +8 more
wiley   +1 more source

Quantitative Electron Probe Microanalysis

open access: yesHyomen Kagaku, 1986
Quantitative analysis by electron probe microanalyzer has been well studied and established. Many methods of quantitative analysis are provided. 1. Working curve method, 2. ZAF method and 3. Bence-Albee method are well known and used. But these methods are not suited to some specimens. 4. Convergence method and 5.
openaire   +3 more sources

Optimized thermoelectric properties of Mo_3Sb_(7-x)Te_x with significant phonon scattering by electrons [PDF]

open access: yes, 2011
Heavily doped compounds Mo_3Sb_(7−x)Te_x (x = 0, 1.0, 1.4, 1.8) were synthesized by solid state reaction and sintered by spark plasma sintering. Both X-ray diffraction and electron probe microanalysis indicated the maximum solubility of Te was around x =
Chen, Lidong   +3 more
core  

Biomimetic Nanoparticle Delivering Colchicine to Target Endothelial Inflammation for Atherosclerosis Treatment

open access: yesAdvanced NanoBiomed Research, EarlyView.
Platelet membrane‐coated layered double hydroxide nanoparticles were engineered to target inflamed endothelium at early‐stage atherosclerosis and enhance therapeutic efficacy. The biomimetic platform improves stability, immune escape, and inflamed vascular cell targeting, resulting in reduced oxidative stress and downregulated adhesion molecules.
Xiuwen Zhang   +4 more
wiley   +1 more source

Accuracy in quantitative electron-probe microanalysis

open access: yesJournal of Research of the National Bureau of Standards, 1988
Electron probe microanalysis (EPMA) is based on the interpretation of x-ray spectra emitted by specimens which were exposed to a focused, accelerated electron beam. One of the attractions of this technique is the simplicity of the x-ray emission line spectra which is particularly striking if we do not pay attention to the fine details of x-ray ...
openaire   +1 more source

Calibration approach to electron probe microanalysis: A study with PWA-1480, a nickel base superalloy [PDF]

open access: yes
The utility of an indirect calibration approach in electron probe microanalysis is explored. The methodology developed is based on establishing a functional relationship between the uncorrected k-ratios and the corresponding concentrations obtained using
Terepka, F. M.   +2 more
core   +1 more source

A Streaming Multi-GPU Implementation of Image Simulation Algorithms for Scanning Transmission Electron Microscopy

open access: yes, 2017
Simulation of atomic resolution image formation in scanning transmission electron microscopy can require significant computation times using traditional methods.
Miao, Jianwei   +2 more
core   +2 more sources

Contra‐Diffusion Engineering of Single‐Atom Catalytic Interlayers Enables Reversible Sulfur Redox Chemistry

open access: yesAngewandte Chemie International Edition, EarlyView.
A contra‐diffusion strategy is introduced to grow uniformly distributed Co–Nx single‐atom catalysts (CoSAs) within a carbonized aramid nanofiber (CANF) interlayer. The resulting CD‐CANF enables efficient polysulfide regulation, low metal loading, and exceptional long‐term cycling stability in lithium–sulfur batteries. ABSTRACT Achieving durable lithium–
Yan‐Jhang Chen   +8 more
wiley   +1 more source

Phase Diagrams of Carbonate Materials at High Pressures, with Implications for Melting and Carbon Cycling in the Deep Earth

open access: yesGeophysical Monograph Series, Page 137-165., 2020

This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.

Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions

Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Konstantin Litasov   +3 more
wiley  

+2 more sources

The Application of Electron Microprobe Dating Method on a Genetic Type of Uraninite

open access: yesYankuang ceshi, 2014
Based on the advantages of high resolution and accuracy, Electron Probe Microanalysis (EPMA) method for Th-U-Pb is conducted to date monazite and zircon, is not typically applied in uraninite, pitchblende and other minerals which contain high contents of
Zhao huibo   +6 more
doaj   +2 more sources

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