Journal
SURFACE AND INTERFACE ANALYSIS
Volume 45, Issue 1, Pages 237-239Publisher
WILEY-BLACKWELL
DOI: 10.1002/sia.5098
Keywords
trehalose film; cellular imaging; depth profiling; TOF-SIMS; C-60(+)
Categories
Funding
- National Institute of Health [2R01 EB002016-18]
- National Science Foundation [CHE-0908226]
- Department of Energy [DE-FG02-06ER15803]
- Direct For Mathematical & Physical Scien
- Division Of Chemistry [0908226] Funding Source: National Science Foundation
- Division Of Chemistry
- Direct For Mathematical & Physical Scien [1212645] Funding Source: National Science Foundation
Ask authors/readers for more resources
In purine-depleted environments, the de novo purine biosynthetic pathway is catalyzed to ultimately produce inosine monophosphate (IMP), a purine invisible using current optical microscopy methodology. These enzymes form a complex, termed the 'purinosome,' to replenish IMP levels. Before cellular chemical imaging may be applied to monitor the distributions and fluctuations in purine levels, it is necessary to develop a scheme to quantitatively detect purines. Here, IMP and other purines in biologically relevant matrices have been detected quantitatively. These methods provide a time-of-flight-secondary ion mass spectrometry protocol using C-60(+) primary ions to determine the concentration of biomolecules in a cell, such as HeLa, at the nanomolar level. Copyright (C) 2012 John Wiley & Sons, Ltd.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available