@article{4fdebdb2a9aa40f6a431b38be02b7fdc,
title = "Stabilization of Colloidal Crystals Engineered with DNA",
abstract = " A postsynthetic method for stabilizing colloidal crystals programmed from DNA is developed. The method relies on Ag + ions to stabilize the particle-connecting DNA duplexes within the crystal lattice, essentially transforming them from loosely bound structures to ones with very strong interparticle links. Such crystals do not dissociate as a function of temperature like normal DNA or DNA-interconnected superlattices, and they can be moved from water to organic media or the solid state, and stay intact. The Ag + -stabilization of the DNA bonds is accompanied by a nondestructive ≈25% contraction of the lattice, and both the stabilization and contraction are reversible with the chemical extraction of the Ag + ions, by AgCl precipitation with NaCl. This synthetic tool is important, since it allows scientists and engineers to study such crystals in environments that are incompatible with structures made by conventional DNA programmable methods and without the influence of a matrix such as silica.",
keywords = "colloidal crystals, metallo-DNA, nanoparticle superlattices, silver DNA, stability enhancement",
author = "Taegon Oh and Park, {Sarah S.} and Mirkin, {Chad A.}",
note = "Funding Information: T.O. and S.S.P. contributed equally to this work. This material is based upon work supported by the following awards: Air Force Office of Scientific Research award FA9550-17-1-0348 (DNA-functionalization and colloidal crystallization of Au nanoparticles), AOARD award FA2386-13-1-4124 (materials characterization), and the Center for Bio-Inspired Energy Science, an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Basic Energy Sciences award DE-SC0000989 (DNA syntheses and purification). This work made use of the EPIC facility of Northwestern University{\textquoteright}s NUANCE Center, which receives support from the Soft and Hybrid Nanotechnology Experimental (SHyNE) Resource (NSF ECCS-1542205); the MRSEC program (NSFDMR-1121262) at the Materials Research Center; the International Institute for Nanotechnology (IIN) and the State of Illinois, through the IIN. Use of the Dupont–Northwestern–Dow Collaborative Access Team beamline at the Advanced Photon Source (APS) in Argonne National Laboratory was supported by the U.S. Department of Energy (DE-AC02-06CH11357). T.O. acknowledges support from Kwanjeong Fellowship. Funding Information: T.O. and S.S.P. contributed equally to this work. This material is based upon work supported by the following awards: Air Force Office of Scientific Research award FA9550-17-1-0348 (DNA-functionalization and colloidal crystallization of Au nanoparticles), AOARD award FA2386-13-1-4124 (materials characterization), and the Center for Bio-Inspired Energy Science, an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Basic Energy Sciences award DE-SC0000989 (DNA syntheses and purification). This work made use of the EPIC facility of Northwestern University's NUANCE Center, which receives support from the Soft and Hybrid Nanotechnology Experimental (SHyNE) Resource (NSF ECCS-1542205); the MRSEC program (NSFDMR-1121262) at the Materials Research Center; the International Institute for Nanotechnology (IIN) and the State of Illinois, through the IIN. Use of the Dupont?Northwestern?Dow Collaborative Access Team beamline at the Advanced Photon Source (APS) in Argonne National Laboratory was supported by the U.S. Department of Energy (DE-AC02-06CH11357). T.O. acknowledges support from Kwanjeong Fellowship. Publisher Copyright: {\textcopyright} 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim",
year = "2019",
month = jan,
day = "4",
doi = "10.1002/adma.201805480",
language = "English (US)",
volume = "31",
journal = "Advanced Materials",
issn = "0935-9648",
publisher = "Wiley-VCH Verlag",
number = "1",
}