Assembly Dynamics of Plasmonic DNA-Capped Gold Nanoparticle Monolayers

Langmuir : the ACS Journal of Surfaces and Colloids
Thomas L DerrienDan Luo

Abstract

The self-assembly of nanoparticles in aqueous solutions promises wide applications but requires the careful balance of many parameters not present in organic solvents. While the presence of long-range electrostatic interactions in aqueous solutions may complicate such assemblies, they provide additional parameters through which to control self-assembly. Here, with DNA-capped gold nanoparticles and through the variation of the ionic strength in aqueous solutions, we explored the influence of electrostatic interactions on the adsorption of negatively charged nanoparticles on a positively charged surface. Specifically, we studied the kinetics of nanoparticle adsorption from solution using the quartz crystal microbalance with dissipation (QCM-D). We also characterized the structure of the adsorbed monolayers employing a combination of grazing incidence small-angle X-ray scattering (GISAXS) and scanning electron microscopy. We discovered that adsorption kinetics and monolayer structure were under the control of the DNA ligand length, solution ionic strength, and salt species. We also precisely fit the kinetics to a modified Langmuir model, which converged to the simple Langmuir model at high ionic strengths of magnesium chloride. We...Continue Reading

References

Jan 14, 1999·Journal of Colloid and Interface Science·N MatubayasiA Matuzawa
Dec 20, 2000·Proceedings of the National Academy of Sciences of the United States of America·I KoltoverC R Safinya
Dec 12, 2001·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·X Guo, M Ballauff
Jan 31, 2004·Faraday Discussions·Joseph J KakkasseryDavid J Fermín
Apr 14, 2005·Chemical Reviews·Clemens BurdaMostafa A El-Sayed
Feb 1, 2008·Nature·Dmytro NykypanchukOleg Gang
Feb 1, 2008·Nature·Sung Yong ParkChad A Mirkin
May 1, 2009·Nature Materials·Wenlong ChengDan Luo
Jun 12, 2009·Small·Kyle J M BishopBartosz A Grzybowski
Jun 25, 2009·Proceedings of the National Academy of Sciences of the United States of America·Robert J MacfarlaneChad A Mirkin
Dec 10, 2009·Angewandte Chemie·Wenlong ChengDan Luo
Apr 20, 2010·Angewandte Chemie·David A GiljohannChad A Mirkin
Apr 19, 2011·Nature Nanotechnology·Shawn J TanWenlong Cheng
Oct 15, 2011·Science·Robert J MacfarlaneChad A Mirkin
Nov 24, 2011·Chemical Society Reviews·Erik C DreadenMostafa A El-Sayed
Dec 29, 2011·Proceedings of the National Academy of Sciences of the United States of America·Huimin ChenLois Pollack
Jan 10, 2012·Langmuir : the ACS Journal of Surfaces and Colloids·Koen van der MaadenJoke Bouwstra
Feb 3, 2012·Chemical Reviews·Krishnendu SahaVincent M Rotello
Feb 19, 2015·Langmuir : the ACS Journal of Surfaces and Colloids·Katarzyna KubiakMagdalena Oćwieja
May 11, 2016·ACS Central Science·Sumit KewalramaniMichael J Bedzyk

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