Gas aggregated Ag NPs as a matrix for small molecules: a study on natural amino acids

0538486 - FZÚ 2021 RIV NL eng J - Journal Article
Prysiazhnyi, V. - Dyčka, F. - Kratochvíl, Jiří - Straňák, Vítězslav
Gas aggregated Ag NPs as a matrix for small molecules: a study on natural amino acids.
Journal of Nanoparticle Research. Roč. 22, č. 11 (2020), s. 1-13, č. článku 351. ISSN 1388-0764. E-ISSN 1572-896X
R&D Projects: GA MŠMT(CZ) EF16_019/0000760
Grant - others:OP VVV - SOLID21(XE) CZ.02.1.01/0.0/0.0/16_019/0000760
Institutional support: RVO:68378271
Keywords : amino acids * Ag NPs * gas aggregation source * nano-PALDIMS * nanomaterials
OECD category: Fluids and plasma physics (including surface physics)
Impact factor: 2.253, year: 2020
Method of publishing: Limited access
https://doi.org/10.1007/s11051-020-05082-4

The nanoparticles are produced by gas aggregation under low-pressure, making the process homogeneous over relatively large areas, free from impurities, and absence of capping agent often presented in colloidal nanoparticles. This work reports the detection of natural amino acids with Ag nanoparticles as a matrix. We successfully detected all amino acids (as [analyte+Ag]+ ion), including in the mixtures of few amino acids. Moreover, a formation of other adducts, particularly [analyte+Ag3]+ and [analyte2+Ag]+ is reported. The differences in ion intensity ratios depending on amino acid types are discussed. The obtained results showed that laser ablation is more efficient for amino acids with hydrophobic, unique, and neutral side chains.

Permanent Link: http://hdl.handle.net/11104/0316278