Surface analysis of halide distributions in complex AgX microcrystals by imaging time-of-flight SIMS (TOF-SIMS)

1999 ◽  
Vol 14 (3) ◽  
pp. 429-434 ◽  
Author(s):  
Geert Verlinden ◽  
Renaat Gijbels ◽  
Ingrid Geuens ◽  
Rene De Keyzer
Keyword(s):  
Surface Analysis ◽  
Time Of Flight ◽  
Tof Sims ◽  
Imaging Time

Surface Analysis Of Lcd Materials iN Various Stages of Production by Time-of-Flight Secondary Ion Mass Spectroscopy (TOF-SIMS)

1994 ◽  
Vol 345 ◽  
Author(s):  
J.J. Lee ◽  
P.M. Lindley ◽  
R.W. Odom
Keyword(s):  
Mass Spectrometry ◽  
Surface Analysis ◽  
Secondary Ion Mass Spectrometry ◽  
Time Of Flight ◽  
Surface Region ◽  
Near Surface ◽  
Tof Sims ◽  
Analysis Technique ◽  
Spectrometry Technique ◽  
Secondary Ion

Time-of-flight secondary ion mass spectrometry (TOF-SIMS) is a surface analysis technique which provides a sensitive characterization of the elemental and molecular composition of the near-surface region (top few monolayers) of solid materials1. This mass spectrometry technique can also localize the distribution of specific elements, molecules or molecular fragments at submicrometer (µm) lateral resolutions.2

Applications of Time-OF-Flight Secondary Ion Mass Spectrometry (TOF-SIMS)

1990 ◽  
Vol 48 (2) ◽  
pp. 308-309
Author(s):  
Bruno Schueler ◽  
Robert W. Odom
Keyword(s):  
Mass Spectrometry ◽  
Secondary Ion Mass Spectrometry ◽  
Structural Information ◽  
Time Of Flight ◽  
Biological Tissues ◽  
Polymer Surfaces ◽  
Tof Sims ◽  
Secondary Ions ◽  
Ion Mass Spectrometry ◽  
Secondary Ion

Time-of-flight secondary ion mass spectrometry (TOF-SIMS) provides unique capabilities for elemental and molecular compositional analysis of a wide variety of surfaces. This relatively new technique is finding increasing applications in analyses concerned with determining the chemical composition of various polymer surfaces, identifying the composition of organic and inorganic residues on surfaces and the localization of molecular or structurally significant secondary ions signals from biological tissues. TOF-SIMS analyses are typically performed under low primary ion dose (static SIMS) conditions and hence the secondary ions formed often contain significant structural information.This paper will present an overview of current TOF-SIMS instrumentation with particular emphasis on the stigmatic imaging ion microscope developed in the authors’ laboratory. This discussion will be followed by a presentation of several useful applications of the technique for the characterization of polymer surfaces and biological tissues specimens. Particular attention in these applications will focus on how the analytical problem impacts the performance requirements of the mass spectrometer and vice-versa.

Optics-Free Visualization of Proteins in Single Cells by Time of Flight-Secondary Ion Mass Spectrometry Coupled with Genetically Encoded Chemical Tags

2020 ◽  
Author(s):  
Feifei Jia ◽  
Jie Wang ◽  
Yanyan Zhang ◽  
Qun Luo ◽  
Luyu Qi ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Secondary Ion Mass Spectrometry ◽  
Single Cells ◽  
Time Of Flight ◽  
E Coli ◽  
Tof Sims ◽  
Ion Mass Spectrometry ◽  
Chemical Tags ◽  
Secondary Ion

<p></p><p><i>In situ</i> visualization of proteins of interest at single cell level is attractive in cell biology, molecular biology and biomedicine, which usually involves photon, electron or X-ray based imaging methods. Herein, we report an optics-free strategy that images a specific protein in single cells by time of flight-secondary ion mass spectrometry (ToF-SIMS) following genetic incorporation of fluorine-containing unnatural amino acids as a chemical tag into the protein via genetic code expansion technique. The method was developed and validated by imaging GFP in E. coli and human HeLa cancer cells, and then utilized to visualize the distribution of chemotaxis protein CheA in E. coli cells and the interaction between high mobility group box 1 protein and cisplatin damaged DNA in HeLa cells. The present work highlights the power of ToF-SIMS imaging combined with genetically encoded chemical tags for <i>in situ </i>visualization of proteins of interest as well as the interactions between proteins and drugs or drug damaged DNA in single cells.</p><p></p>

Time-of-flight secondary ion mass spectrometry (TOF-SIMS) of polyisoprenes

1996 ◽  
Vol 122 (1-2) ◽  
pp. 1-15 ◽  
Author(s):  
Keyang Xu ◽  
Andrew Proctor ◽  
David M. Hercules
Keyword(s):  
Mass Spectrometry ◽  
Secondary Ion Mass Spectrometry ◽  
Time Of Flight ◽  
Tof Sims ◽  
Ion Mass Spectrometry ◽  
Secondary Ion
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