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J Am Chem Soc. 2009 Feb 4;131(4):1384-5. doi: 10.1021/ja808856z.

Templated spherical high density lipoprotein nanoparticles.

Author information

1
Northwestern University, Feinberg School of Medicine, Department of Urology, 303 East Chicago Avenue, Tarry 16-703, Chicago, Illinois 60611, USA. cthaxton003@md.northwestern.edu

Abstract

We report the synthesis of high density lipoprotein (HDL) biomimetic nanoparticles capable of binding cholesterol. These structures use a gold nanoparticle core to template the assembly of a mixed phospholipid layer and the adsorption of apolipoprotein A-I. These synthesized structures have the general size and surface composition of natural HDL and, importantly, bind free cholesterol (K(d) = 4 nM). The determination of the K(d) for these particles, with respect to cholesterol complexation, provides a key starting and comparison point for measuring and evaluating the properties of subsequently developed synthetic versions of HDL.

PMID:
19133723
PMCID:
PMC2843502
DOI:
10.1021/ja808856z
[Indexed for MEDLINE]
Free PMC Article
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