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\subsection{Broader impacts}  \section{Introduction}  Nanostructure is an assembly of atoms or molecules with a microstructure at the nanoscale. Well-defined shapes of nanostructures such as cube \cite{Im_2005}, octahedron \cite{Xia_2012}, icosahedron, icosahedron \cite{Xiong_2007},  triangular plate \cite{Lofton_2005}  and five-fold twinned pentagonal wire \cite{Tsuji_2008}  can be synthesized in the colloidal system \cite{Xia_2008}.  \section{Background and Significance} system.  \subsection{Motivations} 
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\subsection{Significance}  \subsection{Literature \section{Literature  Review}\subsection{Prior Work}  \section{Proposal of Research Method}