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Updated Method for In Vitro Analysis of Nanoparticle Hemolytic Properties

  • Barry W. Neun
  • Anna N. Ilinskaya
  • Marina A. DobrovolskaiaEmail author
Protocol
Part of the Methods in Molecular Biology book series (MIMB, volume 1682)

Abstract

Hemolysis is damage to red blood cells (RBCs), which results in the release of the iron-containing protein hemoglobin into plasma. An in vitro assay was developed and described earlier for the analysis of nanoparticle hemolytic properties. Herein, we present a revised version of the original protocol. In this protocol, analyte nanoparticles and controls are incubated in blood. Undamaged RBCs are removed by centrifugation and hemoglobin, released by the damaged erythrocytes, is converted to cyanmethemoglobin by incubation with Drabkin’s reagent. The amount of cyanmethemoglobin in the supernatant is measured by spectrophotometry. This measured absorbance is compared to a standard curve to determine the concentration of hemoglobin in the supernatant. The measured hemoglobin concentration is then compared to the total hemoglobin concentration to obtain the percentage of nanoparticle-induced hemolysis. The revision includes updated details about nanoparticle sample preparation, selection of nanoparticle concentration for the in vitro study, updated details about assay controls and case studies about nanoparticle interference with the in vitro hemolysis assay.

Key words

Nanoparticles Hemolysis Hemoglobin Red blood cells (RBC) 

Notes

Acknowledgment

This project has been funded in whole or in part with Federal funds from the National Cancer Institute, National Institutes of Health, under Contract No. HHSN261200800001E. The content of this publication does not necessarily reflect the views or policies of the Department of Health and Human Services, nor does mention of trade names, commercial products, or organizations imply endorsement by the U.S. Government.

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Copyright information

© Springer Science+Business Media LLC 2018

Authors and Affiliations

  • Barry W. Neun
    • 1
  • Anna N. Ilinskaya
    • 1
  • Marina A. Dobrovolskaia
    • 1
    Email author
  1. 1.Cancer Research Technology Program, Nanotechnology Characterization LaboratoryLeidos Biomedical Research, Inc., Frederick National Laboratory for Cancer ResearchFrederickUSA

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