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Introducing Applied Nano: An Interdisciplinary Open Access Journal Showing How Nanoscience Can Offer Solutions to Different Problems and Needs
Article

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

1
Faculty of Science, Masaryk University, Kamenice 5, 62500 Brno, Czech Republic
2
Faculty of Science, University of South Bohemia, Branisovska 1760, 37005 Ceske Budejovice, Czech Republic
3
Department of Materials and Production, Aalborg University, Skjernvej 4A, DK-9220 Aalborg, Denmark
*
Author to whom correspondence should be addressed.
Appl. Nano 2020, 1(1), 3-13; https://doi.org/10.3390/applnano1010002
Received: 8 July 2020 / Revised: 14 August 2020 / Accepted: 19 August 2020 / Published: 24 August 2020
(This article belongs to the Special Issue Formation of Advanced Nanomaterials by Gas-Phase Aggregation)
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. View Full-Text
Keywords: silver nanoparticles; nano-PALDI MS; SALDI MS; laser desorption silver nanoparticles; nano-PALDI MS; SALDI MS; laser desorption
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MDPI and ACS Style

Prysiazhnyi, V.; Dycka, F.; Kratochvil, J.; Stranak, V.; Popok, V.N. Effect of Ag Nanoparticle Size on Ion Formation in Nanoparticle Assisted LDI MS. Appl. Nano 2020, 1, 3-13. https://doi.org/10.3390/applnano1010002

AMA Style

Prysiazhnyi V, Dycka F, Kratochvil J, Stranak V, Popok VN. Effect of Ag Nanoparticle Size on Ion Formation in Nanoparticle Assisted LDI MS. Applied Nano. 2020; 1(1):3-13. https://doi.org/10.3390/applnano1010002

Chicago/Turabian Style

Prysiazhnyi, Vadym, Filip Dycka, Jiri Kratochvil, Vitezslav Stranak, and Vladimir N. Popok 2020. "Effect of Ag Nanoparticle Size on Ion Formation in Nanoparticle Assisted LDI MS" Applied Nano 1, no. 1: 3-13. https://doi.org/10.3390/applnano1010002

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