Towards High-Resolution Tissue Imaging Using Nanospray Desorption Electrospray Ionization Mass Spectrometry Coupled to Shear Force Microscopy
Journal Article
·
· Journal of the American Society for Mass Spectrometry
Constant mode ambient mass spectrometry imaging (MSI) of tissue sections with high lateral resolution of better than 10 µm was performed by combining shear force microscopy with nanospray desorption electrospray ionization (nano-DESI). Shear force microscopy enabled precise control of the distance between the sample and nano-DESI probe during MSI experiments and provided information on sample topography. Proof-of-concept experiments were performed using lung and brain tissue sections representing spongy and dense tissues, respectively. Topography images obtained using shear force microscopy were comparable to the results obtained using contact profilometry over the same region of the tissue section. Variations in tissue height were found to be dependent on the tissue type and were in the range of 0-5 µm for lung tissue and 0-3 µm for brain tissue sections. Ion images of phospholipids obtained in this study are in good agreement with literature data. Normalization of nano-DESI MSI images to the signal of the internal standard added to the extraction solvent allowed us to construct high-resolution ion images free of matrix effects.
- Research Organization:
- Pacific Northwest National Laboratory (PNNL), Richland, WA (US), Environmental Molecular Sciences Laboratory (EMSL)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-76RL01830
- OSTI ID:
- 1439009
- Report Number(s):
- PNNL-SA-126302; 49133; 49560; 48632; 453040220; 400412000
- Journal Information:
- Journal of the American Society for Mass Spectrometry, Journal Name: Journal of the American Society for Mass Spectrometry Journal Issue: 2 Vol. 29; ISSN 1044-0305
- Publisher:
- American Society for Mass Spectrometry
- Country of Publication:
- United States
- Language:
- English
Similar Records
Towards High-Resolution Tissue Imaging Using Nanospray Desorption Electrospray Ionization Mass Spectrometry Coupled to Shear Force Microscopy
Shotgun Approach for Quantitative Imaging of Phospholipids Using Nanospray Desorption Electrospray Ionization Mass Spectrometry
High spatial resolution imaging of biological tissues using nanospray desorption electrospray ionization mass spectrometry
Journal Article
·
Wed Feb 14 23:00:00 EST 2018
· Journal of the American Society for Mass Spectrometry
·
OSTI ID:22776851
Shotgun Approach for Quantitative Imaging of Phospholipids Using Nanospray Desorption Electrospray Ionization Mass Spectrometry
Journal Article
·
Mon Feb 03 23:00:00 EST 2014
· Analytical Chemistry, 86(3):1872-1880
·
OSTI ID:1129320
High spatial resolution imaging of biological tissues using nanospray desorption electrospray ionization mass spectrometry
Journal Article
·
Tue Nov 12 19:00:00 EST 2019
· Nature Protocols
·
OSTI ID:1608770