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(CO2)n+, (H2O)n+, a...
(CO2)n+, (H2O)n+, and (H2O)n+ (CO2) gas cluster ion beam secondary ion mass spectrometry: analysis of lipid extracts, cells, and Alzheimer’s model mouse brain tissue
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- Nilsson, Kelly Dimovska (author)
- Gothenburg University,Göteborgs universitet,Institutionen för kemi och molekylärbiologi,Department of Chemistry and Molecular Biology,Univ Gothenburg, Dept Chem & Mol Biol, S-40530 Gothenburg, Sweden.
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- Karagianni, Anthi (author)
- Gothenburg University,Göteborgs universitet,Institutionen för kemi och molekylärbiologi,Department of Chemistry and Molecular Biology,Univ Gothenburg, Dept Chem & Mol Biol, S-40530 Gothenburg, Sweden.
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- Kaya, Ibrahim (author)
- Uppsala universitet,Gothenburg University,Göteborgs universitet,Institutionen för neurovetenskap och fysiologi, sektionen för psykiatri och neurokemi,Institute of Neuroscience and Physiology, Department of Psychiatry and Neurochemistry,Institutionen för farmaceutisk biovetenskap,Univ Gothenburg, Dept Chem & Mol Biol, S-40530 Gothenburg, Sweden.;Univ Gothenburg, Dept Psychiat & Neurochem, Sahlgrenska Acad, S-41345 Mölndal, Sweden.,Medicinsk masspektrometri
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- Henricsson, Marcus, 1975 (author)
- Gothenburg University,Göteborgs universitet,Wallenberglaboratoriet,Institutionen för medicin, avdelningen för molekylär och klinisk medicin,Wallenberg Laboratory,Institute of Medicine, Department of Molecular and Clinical Medicine,Univ Gothenburg, Inst Med, Dept Mol & Clin Med, Wallenberg Lab, S-41345 Gothenburg, Sweden.
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- Fletcher, John S. (author)
- Gothenburg University,Göteborgs universitet,Institutionen för kemi och molekylärbiologi,Department of Chemistry and Molecular Biology,Univ Gothenburg, Dept Chem & Mol Biol, S-40530 Gothenburg, Sweden.
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(creator_code:org_t)
- 2021-05-11
- 2021
- English.
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In: Analytical and Bioanalytical Chemistry. - : Springer Science and Business Media LLC. - 1618-2642 .- 1618-2650. ; 413, s. 4181-4194
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Abstract
Subject headings
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- This work assesses the potential of new water cluster-based ion beams for improving the capabilities of secondary ion mass spectrometry (SIMS) for in situ lipidomics. The effect of water clusters was compared to carbon dioxide clusters, along with the effect of using pure water clusters compared to mixed water and carbon dioxide clusters. A signal increase was found when using pure water clusters. However, when analyzing cells, a more substantial signal increase was found in positive ion mode when the water clusters also contained carbon dioxide, suggesting that additional reactions are in play. The effects of using a water primary ion beam on a more complex sample were investigated by analyzing brain tissue from an Alzheimer’s disease transgenic mouse model. The results indicate that the ToF-SIMS results are approaching those from MALDI as ToF-SIMS was able to image lyso-phosphocholine (LPC) lipids, a lipid class that for a long time has eluded detection during SIMS analyses. Gangliosides, sulfatides, and cholesterol were also imaged. Graphical abstract: [Figure not available: see fulltext.] © 2021, The Author(s).
Subject headings
- NATURVETENSKAP -- Kemi -- Analytisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Analytical Chemistry (hsv//eng)
Keyword
- Alzheimer’s
- Imaging
- Lipids
- Mass spectrometry
- SIMS
- Water clusters
- SIMS
Publication and Content Type
- ref (subject category)
- art (subject category)
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