DNA assembly of nanoparticle superstructures for controlled biological delivery and elimination

373Citations
Citations of this article
347Readers
Mendeley users who have this article in their library.
Get full text

Abstract

The assembly of nanomaterials using DNA can produce complex nanostructures, but the biological applications of these structures remain unexplored. Here, we describe the use of DNA to control the biological delivery and elimination of inorganic nanoparticles by organizing them into colloidal superstructures. The individual nanoparticles serve as building blocks, whose size, surface chemistry and assembly architecture dictate the overall superstructure design. These superstructures interact with cells and tissues as a function of their design, but subsequently degrade into building blocks that can escape biological sequestration. We demonstrate that this strategy reduces nanoparticle retention by macrophages and improves their in vivo tumour accumulation and whole-body elimination. Superstructures can be further functionalized to carry and protect imaging or therapeutic agents against enzymatic degradation. These results suggest a different strategy to engineer nanostructure interactions with biological systems and highlight new directions in the design of biodegradable and multifunctional nanomedicine. © 2014 Macmillan Publishers Limited. All rights reserved.

Cite

CITATION STYLE

APA

Chou, L. Y. T., Zagorovsky, K., & Chan, W. C. W. (2014). DNA assembly of nanoparticle superstructures for controlled biological delivery and elimination. Nature Nanotechnology, 9(2), 148–155. https://doi.org/10.1038/nnano.2013.309

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free