Effect of Ag Nanoparticle Size on Ion Formation in Nanoparticle Assisted LDI MS

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F20%3A43904096" target="_blank" >RIV/60076658:12310/20:43904096 - isvavai.cz</a>
Alternative codes found
RIV/00216224:14310/20:00114576
Result on the web
<a href="https://www.mdpi.com/2673-3501/1/1/2/htm" target="_blank" >https://www.mdpi.com/2673-3501/1/1/2/htm</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Effect of Ag Nanoparticle Size on Ion Formation in Nanoparticle Assisted LDI MS
Original language description
Metal nanoparticles (NPs) were reported as an efficient matrix for detection of small molecules using laser desorption/ionization mass spectrometry. Their pronounced efficiency is mostly in desorption enhancement, while, in some cases, NPs can facilitate charge transfer to a molecule, which has been reported for alkali metals and silver. In this work, we present the study of the influence of Ag NP size on the laser desorption/ionization mass spectra of a model analyte, the molecule of riboflavin. The NPs were produced by magnetron sputtering-based gas aggregation in a vacuum and mass-filtered before the deposition on substrates. It was found that the utilization of smaller Ag NPs (below 15 nm in diameter) considerably enhanced the molecule desorption. In contrast, the laser irradiation of the samples with larger NPs led to the increased ablation of silver, resulting in [analyte + Ag]+ adduct formation.
Czech name
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Czech description
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Project
<a href="/en/project/TP01010019" target="_blank" >TP01010019: Development of Proof of concept activities at the South Bohemia university</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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