2022
Matrix enrichment by black phosphorus improves ionization and reproducibility of mass spectrometry of intact cells, peptides, and amino acids
MANDAL, Govinda, Lukáš MORÁŇ, Lukáš PEČINKA, Petr VAŇHARA, Josef HAVEL et. al.Základní údaje
Originální název
Matrix enrichment by black phosphorus improves ionization and reproducibility of mass spectrometry of intact cells, peptides, and amino acids
Autoři
MANDAL, Govinda (524 Nepál, domácí), Lukáš MORÁŇ (203 Česká republika, domácí), Lukáš PEČINKA (203 Česká republika, domácí), Petr VAŇHARA (203 Česká republika, domácí) a Josef HAVEL (203 Česká republika, garant, domácí)
Vydání
Nature Scientific Reports, London, Nature Research, 2022, 2045-2322
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10406 Analytical chemistry
Stát vydavatele
Německo
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 4.600
Kód RIV
RIV/00216224:14310/22:00119707
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000746132400031
Klíčová slova anglicky
stem cells; laser desorption/ionization mass spectrometry (MALDI-TOF MS)
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 24. 11. 2023 08:08, doc. RNDr. Petr Vaňhara, Ph.D.
Anotace
V originále
Intact (whole) cell matrix-assisted laser desorption/ionization mass spectrometry (MALDI-TOF MS) is an established method for biotyping in clinical microbiology as well as for revealing phenotypic shifts in cultured eukaryotic cells. Intact cell MALDI-TOF MS has recently been introduced as a quality control tool for long-term cultures of pluripotent stem cells. Despite the potential this method holds for revealing minute changes in cells, there is still a need for improving the ionization efficiency or peak reproducibility. Here we report for the first time that supplementation by fine particles of black phosphorus to the standard MALDI matrices, such as sinapinic and alpha-cyano-4-hydroxycinnamic acids enhance intensities of mass spectra of particular amino acids and peptides, presumably by interactions with aromatic groups within the molecules. In addition, the particles of black phosphorus induce the formation of small and regularly dispersed crystals of sinapinic acid and alpha-cyano-4-hydroxycinnamic acid with the analyte on a steel MALDI target plate. Patterns of mass spectra recorded from intact cells using black phosphorus-enriched matrix were more reproducible and contained peaks of higher intensities when compared to matrix without black phosphorus supplementation. In summary, enrichment of common organic matrices by black phosphorus can improve discrimination data analysis by enhancing peak intensity and reproducibility of mass spectra acquired from intact cells.
Návaznosti
GA18-03823S, projekt VaV |
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MUNI/A/1390/2020, interní kód MU |
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MUNI/A/1398/2021, interní kód MU |
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MUNI/A/1689/2020, interní kód MU |
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ROZV/28/LF/2020, interní kód MU |
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