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Issue 1, 2016
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The effect of “Jelly” CdTe QD uptake on RAW264.7 monocytes: immune responses and cell fate study

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Abstract

Encapsulation of Quantum Dots (QDs) has become an essential factor which regulates particles cytotoxicity, as well as physical and chemical stability. Negatively charged cellular membranes have a great affinity to nanoparticles with surface molecules carrying positive charge, hence creating perfect conditions for fast and aggressive intracellular penetration. The preference for non-charged outer shells is topical in QD design and various applications. In the current paper we develop gelatination as a prominent coating approach to create neutrally passivated QDs with improved biocompatibility. We have revealed the trends in particle's uptake, accumulation, intracellular localisation and retaining time as well as RAW264.7 monocyte cell fate and immune responses. Also the difference in particle endocytosis kinetics and dynamics has been shown to depend on the QD core size. The intracellular QD content along with cell responses at the population level was quantified by flow cytometry.

Graphical abstract: The effect of “Jelly” CdTe QD uptake on RAW264.7 monocytes: immune responses and cell fate study

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Publication details

The article was received on 22 May 2015, accepted on 05 Oct 2015 and first published on 12 Oct 2015


Article type: Paper
DOI: 10.1039/C5TX00153F
Author version available: Download Author version (PDF)
Citation: Toxicol. Res., 2016,5, 180-187
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    The effect of “Jelly” CdTe QD uptake on RAW264.7 monocytes: immune responses and cell fate study

    O. Gladkovskaya, A. Loudon, M. Nosov, Y. K. Gun'ko, G. M. O'Connor and Y. Rochev, Toxicol. Res., 2016, 5, 180
    DOI: 10.1039/C5TX00153F

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