Addressing the presence of biogenic selenium nanoparticles in yeast cells: analytical strategies based on ICP-TQ-MS

Abstract

Complementary analytical strategies based on ICP-TQ-MS were used for the detection and characterization of selenium-containing nanoparticles in selenized yeast.

Living in a transient world: ICP-MS reinvented via time-resolved analysis for monitoring single events

“…In another work, Álvarez-Fernández García et al reported a value of 69 ± 3% for yeast cells using a similar device. 138 …”

“…while for 30 nm Au NPs they reported a TE of 70%. In another work, Álvarez-Fernández García et al reported a value of 69 ± 3 % for yeast cells using a similar device 138. Another direct injection device with a custom-made concentric nebulizer and an almost total consumption spray chamber was proposed by Wei et al,139 providing a TE value of 42.1 ± 7.2 %, as evaluated with 30 nm Au NPs.…”

Quantitative Elemental Analysis of a Single Cell by Using Inductively Coupled Plasma‐Mass Spectrometry in Fast Time‐Resolved Analysis Mode

“…This was due to the larger sizes of each cell (~5 μm, Figure 3) compared to the silica nanoparticles (200 nm). Nanosized particle material can be effectively introduced into ICP-MS. [8] Even for micrometer-sized cell samples, high transport efficiency was achieved more than 70 % when a concentric nebulizer with a capillary tube was used. [6,9] In this study, a typical concentric nebulizer was used for nebulization.…”

“…Álvarez‐Fernández García et al. then used SC‐ICP‐MS for the detection of Se in selenium‐enriched yeast [8] . For mammalian cell characterization, Cao et al.…”

“…Initially, the contents of the endogenous element of dry yeast were successfully measured by SC-ICP-MS. [6,7] Álvarez-Fernández García et al then used SC-ICP-MS for the detection of Se in selenium-enriched yeast. [8] For mammalian cell characterization, Cao et al measured the cellular Cu content in human RBCs. [9] Typically, culture cells such as A549, HeLa, and 16HBE have been investigated by SC-ICP-MS analysis, and several elements such as P, S, Fe, Zn, Cu, and Mn have been measured quantitatively in the cells.…”