Mass-spectrometric study of the formation of silver nanoclusters in polyether media: 2. Fast atom bombardment and modeling

Silver nanostructures in laser desorption/ionization mass spectrometry and mass spectrometry imaging

“…Sample preparation for analysis required only placement of 0.5-2 µL of the sample solution and air-drying. 56 A similar methodology applying reduction of silver over solid surface by dihydroxyaromatic species was presented by Hong et al The mentioned authors reduced silver ions with surface-bound polydopamine and tested these new nanostructures for ionization efficiency of small peptides. The cationic silver nanoparticles allowed the detection of Dribose at attomolar levels, as well as analysis of biological samples such as urine and blood serum.…”

“…This approach was further developed by application of several types of nanoparticles (Ag, Au, P, HgTe, ZnS, nanocrystalline TiO 2 , MnO 2 , Mn 2 O 3 ). 56 The main disadvantage of porous materials is the loss of SALDI activity after evaporation of water, a process that may take place within few days.…”

“…10C) shows the ribose peak containing only one line assigned to the [ribose + 109 Ag] + ion at m/z 256.962. 56 A similar methodology applying reduction of silver over solid surface by dihydroxyaromatic species was presented by Hong et al The mentioned authors reduced silver ions with surface-bound polydopamine and tested these new nanostructures for ionization efficiency of small peptides. 61 Besides the high ionization efficiency towards peptides, the spectra presented in this work contain visible chemical background peaks, probably due to the fact that the surface consists of an organic network.…”