scholarly journals Stability theory of dissipative trapped-electron and trapped-ion modes

1974 ◽  
Author(s):  
W. Jr. Horton ◽  
D. W. Ross ◽  
W. M. Tang ◽  
H. L. Berk ◽  
E. A. Frieman ◽  
...  
Keyword(s):  
Stability Theory ◽  
Trapped Ion ◽  
Trapped Electron

Global gyrokinetic simulations of trapped-electron mode and trapped-ion mode microturbulence

2015 ◽  
Vol 22 (8) ◽  
pp. 082302 ◽  
Author(s):  
T. Drouot ◽  
E. Gravier ◽  
T. Reveille ◽  
M. Sarrat ◽  
M. Collard ◽  
...  
Keyword(s):  
Trapped Ion ◽  
Electron Mode ◽  
Gyrokinetic Simulations ◽  
Trapped Electron

Self-generated zonal flows in the plasma turbulence driven by trapped-ion and trapped-electron instabilities

2015 ◽  
Vol 22 (10) ◽  
pp. 102309 ◽  
Author(s):  
T. Drouot ◽  
E. Gravier ◽  
T. Reveille ◽  
M. Collard
Keyword(s):  
Plasma Turbulence ◽  
Zonal Flows ◽  
Trapped Ion ◽  
Trapped Electron

scholarly journals Diffusion and fluctuation measurements in the trapped electron and trapped ion regimes

1976 ◽  
Author(s):  
J.R. Drake ◽  
D.W. Kerst ◽  
G.A. Navratil ◽  
R.S. Post ◽  
S. Ejima ◽  
...  
Keyword(s):  
Trapped Ion ◽  
Trapped Electron

Spatial Metabolomics of the Human Kidney Using MALDI Trapped Ion Mobility Imaging Mass Spectrometry

2020 ◽  
Author(s):  
Elizabeth Neumann ◽  
Lukasz Migas ◽  
Jamie L. Allen ◽  
Richard Caprioli ◽  
Raf Van de Plas ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Ion Mobility ◽  
Imaging Mass Spectrometry ◽  
Structural Complexity ◽  
Human Kidney ◽  
Resolving Power ◽  
Mobility Separation ◽  
Trapped Ion ◽  
Mobility Data ◽  
Ion Mobility Separation

<div> <div> <p>Small metabolites are essential for normal and diseased biological function but are difficult to study because of their inherent structural complexity. MALDI imaging mass spectrometry (IMS) of small metabolites is particularly challenging as MALDI matrix clusters are often isobaric with metabolite ions, requiring high resolving power instrumentation or derivatization to circumvent this issue. An alternative to this is to perform ion mobility separation before ion detection, enabling the visualization of metabolites without the interference of matrix ions. Here, we use MALDI timsTOF IMS to image small metabolites at high spatial resolution within the human kidney. Through this, we have found metabolites, such as arginic acid, acetylcarnitine, and choline that localize to the cortex, medulla, and renal pelvis, respectively. We have also demonstrated that trapped ion mobility spectrometry (TIMS) can resolve matrix peaks from metabolite signal and separate both isobaric and isomeric metabolites with different localizations within the kidney. The added ion mobility data dimension dramatically increased the peak capacity for molecular imaging experiments. Future work will involve further exploring the small metabolite profiles of human kidneys as a function of age, gender, and ethnicity.</p></div></div>

Sign in / Sign up

Export Citation Format

Share Document