Analytical and Bioanalytical Chemistry

, Volume 409, Issue 12, pp 3067–3076 | Cite as

Label-free visualization of nilotinib-functionalized gold nanoparticles within single mammalian cells by C60- SIMS imaging

  • Anna N. BloomEmail author
  • Hua Tian
  • Christian Schoen
  • Nicholas Winograd
Paper in Forefront


Obtaining a comprehensive grasp of the behavior and interaction of pharmaceutical compounds within single cells provides some of the fundamental details necessary for more effective drug development. In particular, the changes ensuing in the carrier, drug, and host environment in targeted drug therapy applications must be explored in greater detail, as these are still not well understood. Here, nilotinib-functionalized gold nanoparticles are examined within single mammalian cells with use of imaging cluster secondary ion mass spectrometry in a model study designed to enhance our understanding of what occurs to these particles once that have been internalized. Nilotinib, several types of gold nanoparticles, and the functionalized combination of the two were surveyed and successfully imaged within single cells to determine uptake and performance. Both nilotinib and the gold particle are able to be distinguished and visualized in the functionalized nanoparticle assembly within the cell. These compounds, while both internalized, do not appear to be present in the same pixels of the chemical image, indicating possible cleavage of nilotinib from the particle after cell uptake. The method provided in this work is a direct measurement of uptake and subcellular distribution of an active drug and its carrier within a framework. The results obtained from this study have the potential to be applied to future studies to provide more effective and specific cellular delivery of a relevant pharmaceutical compound.


Secondary ion mass spectrometry Targeted drug therapy Nilotinib Gold nanoparticles 



The generous support and donation of compounds and technical support by Novartis Pharmaceuticals (David Six and Thomas Krucker) is gratefully acknowledged. This project was financially supported by the National Institutes of Health (grant no. 5R01 GM113746-22).

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.


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Copyright information

© Springer-Verlag Berlin Heidelberg 2017

Authors and Affiliations

  • Anna N. Bloom
    • 1
    Email author
  • Hua Tian
    • 1
  • Christian Schoen
    • 2
  • Nicholas Winograd
    • 1
  1. 1.Department of ChemistryThe Pennsylvania State UniversityUniversity ParkUSA
  2. 2.Nanopartz Inc.LovelandUSA

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