Detailed Information on Publication Record
2023
Fate of Gold Nanoparticles in Laser Desorption/Ionization Mass Spectrometry: Toward the Imaging of Individual Nanoparticles
PRYSIAZHNYI, Vadym, Antonín BEDNAŘÍK, Michal ŽALUD, Veronika HEGROVÁ, Jan NEUMAN et. al.Basic information
Original name
Fate of Gold Nanoparticles in Laser Desorption/Ionization Mass Spectrometry: Toward the Imaging of Individual Nanoparticles
Authors
PRYSIAZHNYI, Vadym (203 Czech Republic, belonging to the institution), Antonín BEDNAŘÍK (203 Czech Republic, belonging to the institution), Michal ŽALUD (203 Czech Republic, belonging to the institution), Veronika HEGROVÁ (203 Czech Republic), Jan NEUMAN (203 Czech Republic) and Jan PREISLER (203 Czech Republic, guarantor, belonging to the institution)
Edition
Journal of the American Society for Mass Spectrometry, American Chemical Society, 2023, 1044-0305
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10406 Analytical chemistry
Country of publisher
United States of America
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
Impact factor
Impact factor: 3.200 in 2022
RIV identification code
RIV/00216224:14310/23:00130754
Organization unit
Faculty of Science
UT WoS
000953993900001
Keywords in English
Gold; Ions; Lasers; Metal nanoparticles; Suspensions
Tags
International impact, Reviewed
Změněno: 18/10/2024 13:48, Ing. Jana Kuchtová
Abstract
V originále
This study focuses on mapping the spatial distribution of Au nanoparticles (NPs) by laser desorption/ionization mass spectrometry imaging (LDI MSI). Laser interaction with NPs and associated phenomena, such as change of shape, melting, migration, and release of Au ions, are explored at the single particle level. Arrays of dried droplets containing low numbers of spatially segregated NPs were reproducibly prepared by automated drop-on-demand piezo-dispensing and analyzed by LDI MSI using an ultrahigh resolution orbital trapping instrument. To enhance the signal from NPs, an in source gas-phase chemical reaction of generated Au ions with xylene was employed. The developed technique allowed the detecting, chemical characterization, and mapping of the spatial distribution of Au NPs; the ion signals were detected from as low as ten 50 nm Au NPs on a pixel. Furthermore, the Au NP melting dynamics under laser irradiation was monitored by correlative atomic force microscopy (AFM) and scanning electron microscopy (SEM). AFM measurements of Au NPs before and after LDI MSI analysis revealed changes in NP shape from a sphere to a half-ellipsoid and total volume reduction of NPs down to 45% of their initial volume.
Links
GA21-12262S, research and development project |
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MUNI/A/1421/2022, interní kód MU |
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90127, large research infrastructures |
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