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Review
. 2015 Dec;2(4):273-80.
doi: 10.1093/rb/rbv024. Epub 2015 Dec 3.

Effects of the physicochemical properties of gold nanostructures on cellular internalization

Affiliations
Review

Effects of the physicochemical properties of gold nanostructures on cellular internalization

Ningqiang Gong et al. Regen Biomater. 2015 Dec.

Abstract

Unique physicochemical properties of Au nanomaterials make them potential star materials in biomedical applications. However, we still know a little about the basic problem of what really matters in fabrication of Au nanomaterials which can get into biological systems, especially cells, with high efficiency. An understanding of how the physicochemical properties of Au nanomaterials affect their cell internalization is of significant interest. Studies devoted to clarify the functions of various properties of Au nanostructures such as size, shape and kinds of surface characteristics in cell internalization are under way. These fundamental investigations will give us a foundation for constructing Au nanomaterial-based biomedical devices in the future. In this review, we present the current advances and rationales in study of the relationship between the physicochemical properties of Au nanomaterials and cell uptake. We also provide a perspective on the Au nanomaterial-cell interaction research.

Keywords: cellular internalization; gold nanostructures; size, shape; surface chemistry.

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Figures

Figure 1
Figure 1
Size-dependent exocytosis of Au NPs. (A) Exocytosis fraction of 14–100 nm Au NPs in three cell lines. (B) Kinetics of Au NP exocytosis. Adapted with permission from [16], Copyright 2007 American Chemical Society.
Figure 2
Figure 2
Size-dependent receptor-mediated internalization of Au NPs. Reproduced with permission [27] Copyright 2008, Nature Publishing Group.
Figure 3
Figure 3
Au based nanomaterials with different structures. The picture of Au nanocage and nanohexapods Reproduced with permission of [58] Copyright 2013, American Chemical Society; The picture of nanoparticles Reproduced with permission [59] Copyright 2011, American Chemical Society; The picture of nanorods Reproduced with permission [60] Copyright 2014, The Royal Society of Chemistry; The picture of nanoshells Reproduced with permission [61] Copyright 2005,American Chemical Society.
Figure 4
Figure 4
Cross sections of three different shaped gold nanostructure–PEG–antibody (nanosphere, nanocage and nanorod).
Figure 5
Figure 5
Scheme of designed multifunctional Au NPs with several surface ligands. Reproduced with permission [54]. Copyright 2012, Elsevier.

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