Interference: A Much-Neglected Aspect in High-Throughput Screening of Nanoparticles.

International Journal of Toxicology
Charlene AndraosMary Gulumian

Abstract

Despite several studies addressing nanoparticle (NP) interference with conventional toxicity assay systems, it appears that researchers still rely heavily on these assays, particularly for high-throughput screening (HTS) applications in order to generate "big" data for predictive toxicity approaches. Moreover, researchers often overlook investigating the different types of interference mechanisms as the type is evidently dependent on the type of assay system implemented. The approaches implemented in the literature appear to be not adequate as it often addresses only one type of interference mechanism with the exclusion of others. For example, interference of NPs that have entered cells would require intracellular assessment of their interference with fluorescent dyes, which has so far been neglected. The present study investigated the mechanisms of interference of gold NPs and silver NPs in assay systems implemented in HTS including optical interference as well as adsorption or catalysis. The conventional assays selected cover all optical read-out systems, that is, absorbance (XTT toxicity assay), fluorescence (CytoTox-ONE Homogeneous membrane integrity assay), and luminescence (CellTiter Glo luminescent assay). Furthermore, t...Continue Reading

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Citations

Jul 25, 2021·International Journal of Molecular Sciences·Tomáš MalinaRadek Zbořil
Aug 25, 2021·Particle and Fibre Toxicology·Mary Gulumian, Flemming R Cassee
Oct 16, 2021·Particle and Fibre Toxicology·Monica M RohdeRavi Singh

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Methods Mentioned

BETA
surface plasmon resonance
flow cytometry
transmission electron microscopy
Assay
fluorescence microscopy

Software Mentioned

ENVI
NanoMILE
ImageJ
NanoTest
StatSoft
xCELLigence
Statistica
RTCA
CytoViva

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