%&LaTeX
\documentclass{article}

\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{textcomp}

\begin{document}

\begin{thebibliography}{1}

\bibitem{Bertoni_etal2012} {\textquotedblleft}\textit{Direct determination of polarity, faceting, and core location in colloidal core/shell wurtzite semiconductor nanocrystals}{\textquotedblright}. Bertoni G, Grillo V, Brescia R, Ke X, Bals S, Catellani A, Li H, Manna L, ACS nano \textbf{6}, 6453 (2012).   http://doi.org/10.1021/nn302085t

\end{thebibliography}

\end{document}

