\begin{thebibliography}{1}

\bibitem{doi:10.1021/jp301094m}
E.~Heikkil{\"a}, A.~A. Gurtovenko, H.~Martinez-Seara, H.~H{\"a}kkinen,
  I.~Vattulainen, and J.~Akola.
\newblock {Atomistic Simulations of Functional Au$_{144}$(SR)$_{60}$ Gold
  Nanoparticles in Aqueous Environment}.
\newblock {\em The J. of Phys. Chem. C}, 116:9805--9815, 2012.

\bibitem{hdlzeta}
W.-L. Zhang, X.~Gu, H.~Bai, R.-H. Yang, C.-D. Dong, and J.-P. Liu.
\newblock Nanostructured lipid carriers constituted from high-density
  lipoprotein components for delivery of a lipophilic cardiovascular drug.
\newblock {\em International Journal of Pharmaceutics}, 391(1–2):313 -- 321,
  2010.

\end{thebibliography}