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ACS Nano. 2009 Apr 28;3(4):971-83. doi: 10.1021/nn900037k.

Phospholipid-gold nanorod composites.

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  • 1Sandia National Laboratories, Albuquerque, New Mexico 87185, USA. corendo@sandia.gov


Phospholipids comprise an enormous range of chemical structures that provide much of the functionality associated with cellular membranes. We have developed a simple method for incorporating phospholipids onto the surfaces of anisotropic gold nanorods as a stepping-stone for creating responsive and multifunctional nanocomposites. In this report, we demonstrate how phospholipids can be used to control the self-assembly of gold nanorods into agglomerate architectures ranging from open "end-to-end" networks to densely packed "side-to-side" arrays. The results indicate that lipid-gold nanorod assembly is governed by the tuning of electrostatic interactions within the phospholipid layers as well as by how the phospholipid layers organize themselves around anisotropic nanorod surfaces.

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