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Title: Stabilization of colloidal crystals engineered with nucleic acid

Abstract

A post-synthetic method for stabilizing colloidal crystals programmed from nucleic acid is disclosed herein. In some embodiments, the method relies on Ag+ ions to stabilize the particle-connecting nucleic acid duplexes within the crystal lattice, essentially transforming them from loosely bound structures to ones with very strong interparticle links. In some embodiments, the nucleic acid is DNA. Such crystals do not dissociate as a function of temperature like normal DNA or DNA-interconnected colloidal crystals, and they can be moved from water to organic media or the solid state, and stay intact. The Ag+-stabilization of the nucleic acid (e.g., DNA) bonds is accompanied by a nondestructive contraction of the lattice, and both the stabilization and contraction are reversible with the chemical extraction of the Ag+ ions, e.g., by AgCl precipitation with NaCl.

Inventors:
; ;
Issue Date:
Research Org.:
Northwestern Univ., Evanston, IL (United States)
Sponsoring Org.:
USDOE; US Air Force Office of Scientific Research (AFOSR); Asian Office of Aerospace Research and Development
OSTI Identifier:
1998283
Patent Number(s):
11624125
Application Number:
17/272,139
Assignee:
Northwestern University (Evanston, IL)
DOE Contract Number:  
FA2386-13-1-4124; FA9550-17-1-0348; SC0000989
Resource Type:
Patent
Resource Relation:
Patent File Date: 09/25/2019
Country of Publication:
United States
Language:
English

Citation Formats

Mirkin, Chad A., Oh, Taegon, and Park, Sarah S. Stabilization of colloidal crystals engineered with nucleic acid. United States: N. p., 2023. Web.
Mirkin, Chad A., Oh, Taegon, & Park, Sarah S. Stabilization of colloidal crystals engineered with nucleic acid. United States.
Mirkin, Chad A., Oh, Taegon, and Park, Sarah S. Tue . "Stabilization of colloidal crystals engineered with nucleic acid". United States. https://www.osti.gov/servlets/purl/1998283.
@article{osti_1998283,
title = {Stabilization of colloidal crystals engineered with nucleic acid},
author = {Mirkin, Chad A. and Oh, Taegon and Park, Sarah S.},
abstractNote = {A post-synthetic method for stabilizing colloidal crystals programmed from nucleic acid is disclosed herein. In some embodiments, the method relies on Ag+ ions to stabilize the particle-connecting nucleic acid duplexes within the crystal lattice, essentially transforming them from loosely bound structures to ones with very strong interparticle links. In some embodiments, the nucleic acid is DNA. Such crystals do not dissociate as a function of temperature like normal DNA or DNA-interconnected colloidal crystals, and they can be moved from water to organic media or the solid state, and stay intact. The Ag+-stabilization of the nucleic acid (e.g., DNA) bonds is accompanied by a nondestructive contraction of the lattice, and both the stabilization and contraction are reversible with the chemical extraction of the Ag+ ions, e.g., by AgCl precipitation with NaCl.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2023},
month = {4}
}

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