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Title: DNA-Encoded Protein Janus Nanoparticles

Journal Article · · Journal of the American Chemical Society
DOI:https://doi.org/10.1021/jacs.8b05640· OSTI ID:1475554
 [1];  [1];  [2];  [1]
  1. Northwestern Univ., Evanston, IL (United States). Dept. of Chemistry, and International Inst. for Nanotechnology
  2. Argonne National Lab. (ANL), Argonne, IL (United States). X-ray Science Division

Asymmetric functionality and directional interactions, which are characteristic of noncentrosymmetric particles, such as Janus particles, present an opportunity to encode particles with properties, but also a great synthetic challenge. Here, we exploit the chemical anisotropy of proteins, and the versatile chemistry of DNA to synthesize a protein-based Janus nanoparticle comprised of two proteins encoded with sequence-specific nucleic acid domains, tethered together by an interprotein “DNA bond”. We use these novel nanoparticles to realize a new class of three-dimensional superlattice, only possible when two sides of the particle are modified with orthogonal oligonucleotide sequences. The low symmetry, intrinsic to Janus particles, enables the realization of unprecedented multicomponent nanoparticle superlattices with unique, hexagonal layered architectures. In addition, the interprotein “DNA bond” can be modulated to selectively expand the lattice in a single direction. The results presented herein not only emphasize the power of rationally designing nanoscale building blocks to create highly engineered colloidal crystals, but also establish a precedent for applications of multidomain DNA-encoded nanoparticles, especially in the field of colloidal crystallization.

Research Organization:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Organization:
National Science and Engineering Research Council of Canada; US Department of the Navy, Office of Naval Research (ONR); USDOE
Grant/Contract Number:
AC02-06CH11357; N00014-15-1-0043
OSTI ID:
1475554
Journal Information:
Journal of the American Chemical Society, Vol. 140, Issue 29; ISSN 0002-7863
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 38 works
Citation information provided by
Web of Science

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Cited By (7)

DNA‐ and Field‐Mediated Assembly of Magnetic Nanoparticles into High‐Aspect Ratio Crystals journal December 2019
Artificial intelligence in nanomedicine journal January 2019
Programmable Atom Equivalents: Atomic Crystallization as a Framework for Synthesizing Nanoparticle Superlattices journal February 2019
Plasmonic Nanoparticles with Supramolecular Recognition journal May 2019
Crystal engineering with DNA journal February 2019
Janus nanoparticles in cancer diagnosis, therapy and theranostics journal January 2019
Dynamic Nanostructures from DNA‐Coupled Molecules, Polymers, and Nanoparticles journal February 2019

Figures / Tables (5)


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