SwePub
Sök i LIBRIS databas

  Extended search

WFRF:(Mårtensson Stefan)
 

Search: WFRF:(Mårtensson Stefan) > (2015-2019) > On-Tissue Chemical ...

  • Kaya, IbrahimGothenburg University,Göteborgs universitet,National Center for Imaging Mass Spectrometry,Institutionen för kemi och molekylärbiologi,Department of Chemistry and Molecular Biology,University of Gothenburg,Sahlgrenska universitetssjukhuset,Sahlgrenska University Hospital (author)

On-Tissue Chemical Derivatization of Catecholamines Using 4-(N-Methyl)pyridinium Boronic Acid for ToF-SIMS and LDI-ToF Mass Spectrometry Imaging

  • Article/chapterEnglish2018

Publisher, publication year, extent ...

  • 2018-10-22
  • American Chemical Society (ACS),2018
  • electronicrdacarrier

Numbers

  • LIBRIS-ID:oai:gup.ub.gu.se/274061
  • https://gup.ub.gu.se/publication/274061URI
  • https://doi.org/10.1021/acs.analchem.8b03746DOI
  • https://research.chalmers.se/publication/506907URI

Supplementary language notes

  • Language:English

Part of subdatabase

Classification

  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • The analysis of small polar compounds with ToF-SIMS and MALDI-ToF-MS have been generally hindered by low detection sensitivity, poor ionization efficiency, ion suppression, analyte in-source fragmentation, and background spectral interferences from either a MALDI matrix and/or endogenous tissue components. Chemical derivatization has been a well-established strategy for improved mass spectrometric detection of many small molecular weight endogenous compounds in tissues. Here, we present a devised strategy to selectively derivatize and sensitively detect catecholamines with both secondary ion ejection and laser desorption ionization strategies, which are used in many imaging mass spectrometry (IMS) experiments. Chemical derivatization of catecholamines was performed by a reaction with a synthesized permanent pyridinium-cation-containing boronic acid molecule, 4-(N-methyl)pyridinium boronic acid, through boronate ester formation (boronic acid-diol reaction). The derivatization facilitates their sensitive detection with ToF-SIMS and LDI-ToF mass spectrometric techniques. 4-(N-Methyl)pyridinium boronic acid worked as a reactive matrix for catecholamines with LDI and improved the sensitivity of detection for both SIMS and LDI, while the isotopic abundances of the boron atom reflect a unique isotopic pattern for derivatized catecholamines in MS analysis. Finally, the devised strategy was applied, as a proof of concept, for on-tissue chemical derivatization and GCIB-ToF-SIMS (down to 3 μm per pixel spatial resolution) and LDI-ToF mass spectrometry imaging of dopamine, epinephrine, and norepinephrine in porcine adrenal gland tissue sections. MS/MS using collision-induced dissociation (CID)-ToF-ToF-SIMS was subsequently employed on the same tissue sections after SIMS and LDI mass spectrometry imaging experiments, which provided tandem MS information for the validation of the derivatized catecholamines in situ. This methodology can be a powerful approach for the selective and sensitive ionization/detection and spatial localization of diol-containing molecules such as aminols, vic-diols, saccharides, and glycans along with catecholamines in tissue sections with both SIMS and LDI/MALDI-MS techniques. © 2018 American Chemical Society.

Subject headings and genre

Added entries (persons, corporate bodies, meetings, titles ...)

  • Brülls, Steffen,1991Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)brullss (author)
  • Dunevall, JohanGothenburg University,Göteborgs universitet,National Center for Imaging Mass Spectrometry,Institutionen för kemi och molekylärbiologi,Department of Chemistry and Molecular Biology,University of Gothenburg(Swepub:gu)xdunej (author)
  • Jennische, Eva,1949Gothenburg University,Göteborgs universitet,Institutionen för biomedicin,Institute of Biomedicine,University of Gothenburg(Swepub:gu)xjenne (author)
  • Lange, Stefan,1948Gothenburg University,Göteborgs universitet,Institutionen för biomedicin,Institute of Biomedicine,University of Gothenburg(Swepub:gu)xlanst (author)
  • Mårtensson, Jerker,1965Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)jerker (author)
  • Ewing, Andrew G,1957Gothenburg University,Göteborgs universitet,Institutionen för kemi och molekylärbiologi,National Center for Imaging Mass Spectrometry,Department of Chemistry and Molecular Biology,University of Gothenburg(Swepub:cth)andrewe (author)
  • Malmberg, Per,1974Gothenburg University,Göteborgs universitet,National Center for Imaging Mass Spectrometry,University of Gothenburg,Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)malmper (author)
  • Fletcher, John S.Gothenburg University,Göteborgs universitet,National Center for Imaging Mass Spectrometry,Institutionen för kemi och molekylärbiologi,Department of Chemistry and Molecular Biology,University of Gothenburg(Swepub:cth)fletcher (author)
  • Göteborgs universitetNational Center for Imaging Mass Spectrometry (creator_code:org_t)

Related titles

  • In:Analytical Chemistry: American Chemical Society (ACS)90:22, s. 13580-135900003-27001520-6882

Internet link

Find in a library

To the university's database

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Close

Copy and save the link in order to return to this view